/* ----- General Styles & Variables (Glassmorphism & Modern UI) ----- */
:root {
    /* Modern Color Palette */
    --primary-color: #007aff;
    /* System Blue */
    --primary-darker: #005bb5;
    --secondary-color: #34c759;
    /* System Green */
    --secondary-darker: #248a3d;
    --accent-color: #ff9500;
    /* System Orange */
    --background-gradient: linear-gradient(135deg, #e0f7fa 0%, #e1f5fe 100%);

    /* Glassmorphism Variables */
    --glass-bg: rgba(255, 255, 255, 0.95);
    --glass-border-color: rgba(255, 255, 255, 0.5);
    --glass-border: 1px solid var(--glass-border-color);
    --glass-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.05);
    --backdrop-blur: none;

    --text-color: #1c1c1e;
    --light-text-color: #ffffff;
    --border-color: rgba(0, 0, 0, 0.1);

    /* Semantic Colors */
    --success-bg: #d4edda;
    --success-text: #155724;
    --error-color: #ff3b30;
    --price-up-color: #34c759;
    --price-down-color: #ff3b30;
    --ceiling-price-color: #af52de;
    /* System Purple */
    --reference-price-color: #ff9500;
    --floor-price-color: #007aff;
    --star-color: #ffcc00;

    /* Notification Colors */
    --info-color: #007aff;
    --info-bg: rgba(0, 122, 255, 0.1);
    --success-bg: rgba(52, 199, 89, 0.1);
    --warning-color: #ff9500;
    --warning-bg: rgba(255, 149, 0, 0.1);
    --alert-color: #ff3b30;
    --alert-bg: rgba(255, 59, 48, 0.1);

    /* Typography & Spacing */
    --font-family: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --header-font-size: 2rem;
    --label-font-size: 0.95rem;
    --input-font-size: 1rem;
    --button-font-size: 1rem;
    --container-bg: rgba(255, 255, 255, 0.95);
    --table-header-bg: rgba(248, 249, 250, 0.98);
    --table-border-color: rgba(0, 0, 0, 0.05);
    --table-border-right-color: rgba(0, 0, 0, 0.03);
    --table-header-border-bottom: rgba(0, 0, 0, 0.08);
    --summary-bg: #f8f9fa;
    --pagination-btn-bg: rgba(255, 255, 255, 0.6);
    --loading-cell-bg: rgba(255, 255, 255, 0.3);
    --input-focus-shadow: rgba(0, 122, 255, 0.15);
    --placeholder-color: #aaa;

    --shadow-sm: rgba(0, 0, 0, 0.05);
    --shadow-md: rgba(0, 0, 0, 0.1);
    --shadow-lg: rgba(0, 0, 0, 0.15);
    --overlay-bg: rgba(0, 0, 0, 0.6);
    --overlay-light: rgba(255, 255, 255, 0.5);
    --overlay-dark: rgba(0, 0, 0, 0.7);
    --pulse-start: rgba(46, 204, 113, 0.7);
    --pulse-end: rgba(46, 204, 113, 0);
    --tab-hover-bg: rgba(0, 0, 0, 0.05);
    --disabled-bg: #f0f0f0;
    --disabled-text: #a0a0a0;
    --disabled-border: #d0d0d0;

    /* Button Colors */
    --btn-shadow: rgba(0, 122, 255, 0.3);
    --btn-hover-shadow: rgba(0, 122, 255, 0.4);
    --btn-delete-start: #ef4444;
    --btn-delete-end: #dc2626;
    --btn-delete-hover-end: #b91c1c;
    --btn-delete-shadow: rgba(239, 68, 68, 0.3);
    --btn-delete-hover-shadow: rgba(239, 68, 68, 0.4);
    --btn-calc-start: var(--secondary-color);
    --btn-calc-end: var(--secondary-darker);
    --btn-calc-shadow: rgba(52, 199, 89, 0.3);
    --btn-calc-hover-shadow: rgba(52, 199, 89, 0.4);
    --btn-external-start: var(--accent-color);
    --btn-external-end: #d35400;
    --btn-external-shadow: rgba(255, 149, 0, 0.3);
    --btn-external-hover-shadow: rgba(255, 149, 0, 0.4);

    /* Notification Colors */
    --notif-info-bg: #e3f2fd;
    --notif-info-border: #2196f3;
    --notif-info-text: #0d47a1;
    --notif-success-bg: #e8f5e9;
    --notif-success-border: #4caf50;
    --notif-success-text: #1b5e20;
    --notif-warning-bg: #fff3e0;
    --notif-warning-border: #ff9800;
    --notif-warning-text: #e65100;
    --notif-alert-bg: #ffebee;
    --notif-alert-border: #f44336;
    --notif-alert-text: #b71c1c;
    --notif-system-bg: #e8f0fe;
    --notif-system-border: #4285f4;
    --notif-system-text: #1a73e8;

    --install-btn-bg: #2ecc71;
    --shadow-color: rgba(0, 0, 0, 0.1);
    --transition-speed: 0.3s;
    --border-radius: 12px;
    /* Standardize border radius */
    /* Standardize border radius */

    /* New Variables for Dark Mode Optimization */
    --modal-bg: #ffffff;
    --modal-text: #333333;
    --muted-text: #888888;
    --light-bg: #eeeeee;
    --panel-bg: #fcfcfc;
    --table-stripe-bg: rgba(0, 0, 0, 0.02);
    --hover-bg: rgba(0, 0, 0, 0.05);

    --status-buy-start: #10b981;
    --status-buy-end: #059669;
    --status-buy-shadow: rgba(16, 185, 129, 0.3);

    --status-sell-start: #ef4444;
    --status-sell-end: #dc2626;
    --status-sell-shadow: rgba(239, 68, 68, 0.3);

    --status-wait-start: #f59e0b;
    --status-wait-end: #d97706;
    --status-wait-shadow: rgba(245, 158, 11, 0.3);

    --toast-shadow: rgba(0, 0, 0, 0.15);
    --dropdown-bg: #ffffff;
    --dropdown-hover: #f5f7fa;
    --dropdown-shadow: rgba(0, 0, 0, 0.2);

    /* Refactoring Variables */
    --text-secondary: #666666;
    --border-light: #eeeeee;
    --input-border: #dddddd;
    --shadow-primary-strong: rgba(10, 132, 255, 0.6);
}

[data-theme="dark"] {
    --primary-color: #0a84ff;
    /* Lighter blue for dark mode */
    --primary-darker: #409cff;
    --secondary-color: #30d158;
    --secondary-darker: #5fe07e;
    --accent-color: #ff9f0a;

    --background-gradient: linear-gradient(135deg, #1c1c1e 0%, #2c2c2e 100%);

    --glass-bg: rgba(28, 28, 30, 0.95);
    --glass-border-color: rgba(255, 255, 255, 0.1);
    --glass-border: 1px solid var(--glass-border-color);
    --glass-shadow: 0 4px 12px 0 rgba(0, 0, 0, 0.2);

    --text-color: #f2f2f7;
    --light-text-color: #ffffff;
    --border-color: rgba(255, 255, 255, 0.15);

    --success-bg: rgba(48, 209, 88, 0.2);
    --success-text: #66e386;
    --error-color: #ff453a;

    --price-up-color: #30d158;
    --price-down-color: #ff453a;
    --ceiling-price-color: #bf5af2;
    --reference-price-color: #ff9f0a;
    --floor-price-color: #0a84ff;

    --info-color: #64d2ff;
    --info-bg: rgba(100, 210, 255, 0.15);
    --warning-color: #ff9f0a;
    --warning-bg: rgba(255, 159, 10, 0.15);
    --alert-color: #ff453a;
    --alert-bg: rgba(255, 69, 58, 0.15);

    --btn-calc-start: var(--secondary-color);
    --btn-calc-end: var(--secondary-darker);

    --container-bg: rgba(28, 28, 30, 0.95);
    --table-header-bg: rgba(44, 44, 46, 0.98);
    --table-border-color: rgba(255, 255, 255, 0.1);
    --table-border-right-color: rgba(255, 255, 255, 0.08);
    --table-header-border-bottom: rgba(255, 255, 255, 0.15);
    --summary-bg: rgba(255, 255, 255, 0.05);
    --pagination-btn-bg: rgba(255, 255, 255, 0.1);
    --loading-cell-bg: rgba(255, 255, 255, 0.05);
    --input-focus-shadow: rgba(10, 132, 255, 0.25);
    --placeholder-color: #666;
    --tab-hover-bg: rgba(255, 255, 255, 0.1);
    --disabled-bg: #3a3a3c;
    --disabled-text: #636366;
    --disabled-border: #48484a;

    /* Dark Mode Notification Override */
    --notif-info-bg: rgba(33, 150, 243, 0.2);
    --notif-info-border: #2196f3;
    --notif-info-text: #90caf9;
    --notif-success-bg: rgba(76, 175, 80, 0.2);
    --notif-success-border: #4caf50;
    --notif-success-text: #a5d6a7;
    --notif-warning-bg: rgba(255, 152, 0, 0.2);
    --notif-warning-border: #ff9800;
    --notif-warning-text: #ffcc80;
    --notif-alert-bg: rgba(244, 67, 54, 0.2);
    --notif-alert-border: #f44336;
    --notif-alert-text: #ef9a9a;
    --notif-system-bg: rgba(66, 133, 244, 0.2);
    --notif-system-border: #4285f4;
    --notif-system-text: #adccf9;

    --btn-delete-start: #cc3333;
    --btn-delete-end: #aa2222;
    --shadow-color: rgba(0, 0, 0, 0.5);

    /* Input backgrounds */
    --input-bg: rgba(58, 58, 60, 0.8);
    --input-focus-bg: #2c2c2e;

    /* Dark Mode Overrides for New Variables */
    --modal-bg: #1c1c1e;
    --modal-text: #f2f2f7;
    --muted-text: #a0a0a0;
    --light-bg: #323234;
    --panel-bg: #2c2c2e;
    --table-stripe-bg: rgba(255, 255, 255, 0.05);
    --hover-bg: rgba(255, 255, 255, 0.1);

    --status-buy-start: #10b981;
    --status-buy-end: #059669;
    --status-buy-shadow: rgba(16, 185, 129, 0.1);

    --status-sell-start: #ef4444;
    --status-sell-end: #dc2626;
    --status-sell-shadow: rgba(239, 68, 68, 0.1);

    --status-wait-start: #f59e0b;
    --status-wait-end: #d97706;
    --status-wait-shadow: rgba(245, 158, 11, 0.1);

    --toast-shadow: rgba(0, 0, 0, 0.5);
    --dropdown-bg: #2c2c2e;
    --dropdown-hover: rgba(255, 255, 255, 0.1);
    --dropdown-shadow: rgba(0, 0, 0, 0.5);

    --shadow-sm: rgba(0, 0, 0, 0.3);
    --shadow-md: rgba(0, 0, 0, 0.5);
    --shadow-lg: rgba(0, 0, 0, 0.7);
    --overlay-bg: rgba(0, 0, 0, 0.8);
    --overlay-light: rgba(255, 255, 255, 0.1);
    --overlay-dark: rgba(0, 0, 0, 0.9);
}

body {
    font-family: var(--font-family);
    background: var(--background-gradient);
    min-height: 100vh;
    color: var(--text-color);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 15px;
    margin: 0;
    line-height: 1.6;
}

/* ----- Header Top (User & Login) ----- */
.header-top {
    display: flex;
    justify-content: flex-end;
    /* Right align */
    padding: 10px 5%;
    align-items: center;
    gap: 15px;
    width: 100%;
    max-width: 1100px;
    /* Match tabs/container width */
    margin-bottom: 5px;
    /* Space before tabs */
    box-sizing: border-box;
    z-index: 100;
    /* Ensure on top */
}

.user-greeting {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border-color);
    border-radius: 24px;
    /* Capsule shape */
    box-shadow: 0 2px 10px var(--shadow-sm);
    cursor: pointer;
    user-select: none;
    font-weight: 500;
    color: var(--text-color);
    font-size: 0.95rem;
    transition: background-color 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.user-greeting:hover {
    background: var(--hover-bg);
    box-shadow: 0 4px 15px var(--shadow-md);
    transform: translateY(-1px);
    border-color: var(--primary-color);
}

.user-greeting i {
    font-size: 0.85em;
    opacity: 0.7;
    transition: transform 0.2s ease;
}

.user-greeting:hover i {
    opacity: 1;
    color: var(--primary-color);
}

.user-greeting.active i {
    transform: rotate(180deg);
    color: var(--primary-color);
    opacity: 1;
}

/* Rotate caret when menu is open */

.small-btn {
    padding: 8px 15px !important;
    font-size: 0.85rem !important;
}

.install-btn {
    display: none;
    /* Default hidden, shown by JS */
    background-color: var(--install-btn-bg);
    color: white;
    margin-right: 15px;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 var(--pulse-start);
    }

    70% {
        box-shadow: 0 0 0 10px var(--pulse-end);
    }

    100% {
        box-shadow: 0 0 0 0 var(--pulse-end);
    }
}

/* User Dropdown */
.user-dropdown-content {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 5px);
    background-color: var(--container-bg);
    min-width: 160px;
    box-shadow: 0 4px 15px var(--dropdown-shadow);
    z-index: 200;
    border-radius: 12px;
    overflow: hidden;
    animation: fadeIn 0.1s ease-in-out;
    border: var(--glass-border);
}

.user-dropdown-content.show {
    display: block;
}

.user-dropdown-content a {
    color: var(--text-color);
    padding: 12px 20px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background 0.2s;
    font-size: 0.95rem;
}

.user-dropdown-content a:hover {
    background-color: var(--glass-bg);
    color: var(--primary-color);
}

/* ----- Notification Bar (UPDATED) ----- */
.notification-container {
    width: 95%;
    max-width: 1100px;
    margin: 0 auto 20px auto;
    display: none;
    /* JS toggles this */
    animation: fadeIn 0.5s;
    /* Remove container bg/shadow, apply to items for stack look */
    background: transparent;
    box-shadow: none;
    border-radius: 0;
    padding: 0;
}

/* Spacing between sub-containers (wrappers) */
.notification-container>div {
    margin-bottom: 10px;
}

.notification-container>div:last-child {
    margin-bottom: 0;
}

.notification-item {
    display: flex;
    align-items: center;
    padding: 12px 20px;
    border-radius: 20px;
    /* Match tabs rounded corners */
    margin-bottom: 10px;
    width: 100%;
    box-sizing: border-box;
    box-shadow: 0 4px 6px var(--shadow-color);
}

.notification-item:last-child {
    margin-bottom: 0;
}

.notification-icon {
    font-size: 1.4rem;
    margin-right: 15px;
    flex-shrink: 0;
}

.notification-content-wrapper {
    flex: 1;
    overflow: hidden;
    /* Mask the scrolling text */
    position: relative;
}

.notification-text {
    font-size: 0.95rem;
    font-weight: 500;
    display: block;
    white-space: nowrap;
    /* Default to no wrap to check overflow, can be reset in JS if needed? No, user implies long text runs */
    /* Actually for marquee it MUST be nowrap. If not marquee, it could wrap?
       User said: "if longer than 1 line... run".
       So initially we can set white-space: nowrap.
       If logic detects overflow, we add animation.
       If NO overflow, we just leave it? Or set white-space: normal?
       Actually if "longer than 1 line" implies it would have wrapped.
       So checking scrollWidth vs clientWidth while nowrap is correct detection.
       If it fits, we can leave it centered or left.
    */
}

.notification-text.marquee-active {
    display: inline-block;
    padding-left: 100%;
    /* Start from right edge */
    animation: marquee-scroll 25s linear infinite;
}

@keyframes marquee-scroll {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-100%);
    }
}

/* Notification Types */
.notification-item.type-info {
    background: var(--notif-info-bg);
    border: 1px solid var(--notif-info-border);
    color: var(--notif-info-text);
}

.notification-item.type-success {
    background: var(--notif-success-bg);
    border: 1px solid var(--notif-success-border);
    color: var(--notif-success-text);
}

.notification-item.type-warning {
    background: var(--notif-warning-bg);
    border: 1px solid var(--notif-warning-border);
    color: var(--notif-warning-text);
}

.notification-item.type-alert {
    background: var(--notif-alert-bg);
    border: 1px solid var(--notif-alert-border);
    color: var(--notif-alert-text);
}

.notification-item.type-system_notification {
    background: var(--notif-system-bg);
    border: 1px solid var(--notif-system-border);
    color: var(--notif-system-text);
}

@keyframes pulse-animation {
    0% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }

    100% {
        transform: scale(1);
    }
}


/* ----- Tabs ----- */
.tabs-container {
    width: 95%;
    max-width: 1100px;
    margin-bottom: 30px;
    display: flex;
    justify-content: center;
}

.tabs {
    display: flex;
    flex-wrap: wrap;
    background: var(--glass-bg);
    border: var(--glass-border);
    border-radius: 20px;
    box-shadow: var(--glass-shadow);
    padding: 8px;
    gap: 8px;
}

.tab {
    padding: 12px 24px;
    cursor: pointer;
    background: transparent;
    color: var(--text-color);
    border: none;
    border-radius: 99px;
    /* Pill shape */
    margin: 4px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: background-color var(--transition-speed) ease, color var(--transition-speed) ease, box-shadow var(--transition-speed) ease, transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
    flex-grow: 1;
    text-align: center;
    white-space: nowrap;
    opacity: 0.7;
}

.tab:hover {
    background: var(--tab-hover-bg);
    opacity: 1;
    transform: translateY(-2px);
}

.tab.active {
    background: var(--primary-color);
    color: var(--light-text-color);
    box-shadow: 0 4px 12px var(--btn-shadow);
    opacity: 1;
    font-weight: 600;
}

.tab i {
    margin-right: 8px;
}


/* ----- Container ----- */
.container {
    background: var(--glass-bg);
    border: var(--glass-border);
    padding: 40px;
    border-radius: 24px;
    box-shadow: var(--glass-shadow);
    color: var(--text-color);
    width: 95%;
    max-width: 1100px;
    box-sizing: border-box;

    /* REFACTOR FOR PERFORMANCE: Replace display: none with opacity/visibility */
    position: absolute;
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    top: 151px;
    /* approximate top offset below tabs to prevent scroll shrinking entirely, though might need relative wrapper to work best */
    margin-top: 0;
    will-change: opacity, transform;
}

.container.active-container {
    position: relative;
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    top: auto;
    animation: fadeIn 0.2s cubic-bezier(0.16, 1, 0.3, 1);
}

.back-link {
    display: block;
    text-align: center;
    margin-top: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.back-link:visited,
.login-container a:visited {
    color: var(--primary-color);
}

.back-link:hover {
    text-decoration: underline;
}

/* Dark Mode Overrides for Login */
[data-theme="dark"] .login-container {
    background-color: var(--light-bg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

header {
    text-align: center;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 15px;
}

h1 {
    color: var(--primary-darker);
    font-size: var(--header-font-size);
    margin: 0;
    font-weight: 600;
}

h1 i {
    margin-right: 10px;
    color: var(--primary-color);
}

/* ----- Forms & Inputs ----- */
.input-group {
    margin-bottom: 20px;
}

label {
    font-weight: 500;
    font-size: var(--label-font-size);
    display: block;
    margin-bottom: 8px;
    color: var(--text-color);
}

label i {
    margin-right: 6px;
    color: var(--primary-color);
}

input[type="text"],
input[type="password"],
input[type="email"],
input[type="number"],
textarea,
select {
    width: 100%;
    font-size: var(--input-font-size);
    padding: 14px 20px;
    /* More padding for pill */
    margin: 0;
    border: 1px solid transparent;
    border-radius: 99px;
    /* Pill shape */
    box-sizing: border-box;
    transition: border-color var(--transition-speed), background-color var(--transition-speed), box-shadow var(--transition-speed);
    background-color: var(--input-bg, rgba(255, 255, 255, 0.8));
    font-family: var(--font-family);
    box-shadow: inset 0 2px 4px var(--shadow-sm);
    color: var(--text-color);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="number"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary-color);
    background-color: var(--input-focus-bg, #fff);
    box-shadow: 0 0 0 4px var(--input-focus-shadow);
}

::placeholder {
    color: var(--placeholder-color);
    opacity: 1;
}

/* ----- Buttons ----- */
.button-container {
    display: flex;
    gap: 15px;
    margin-top: 25px;
    justify-content: center;
    flex-wrap: wrap;
}

.action-button {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-darker));
    color: var(--light-text-color);
    padding: 14px 28px;
    border: none;
    border-radius: 99px;
    /* Pill shape */
    cursor: pointer;
    font-size: var(--button-font-size);
    font-weight: 600;
    transition: transform 0.15s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.15s cubic-bezier(0.16, 1, 0.3, 1), filter 0.15s;
    white-space: normal;
    word-wrap: break-word;
    text-align: center;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px var(--btn-shadow);
    letter-spacing: 0.5px;
}

.action-button i {
    margin-right: 10px;
    pointer-events: none;
    /* Prevents icon from intercepting clicks and delaying event bubbling */
}

.action-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px var(--btn-shadow);
    /* Keep shadow color/blur similar, just slightly lower/larger offset, no complex recolor */
    filter: brightness(1.05);
    /* Slight bright to act as hover state without heavy paint */
}

.action-button:active {
    transform: translateY(-1px);
    box-shadow: 0 4px 10px var(--btn-shadow);
}

.action-button.secondary {
    background: var(--glass-bg);
    color: var(--text-color);
    box-shadow: none;
    border: 1px solid var(--border-color);
}

.action-button.secondary:hover {
    background: var(--border-color);
    color: var(--text-color);
    box-shadow: 0 2px 4px var(--shadow-md);
}

.action-button.delete-btn {
    background: linear-gradient(135deg, var(--btn-delete-start), var(--btn-delete-end));
    color: white;
    box-shadow: 0 4px 12px var(--btn-delete-shadow);
}

.action-button.delete-btn:hover {
    background: linear-gradient(135deg, var(--btn-delete-end), var(--btn-delete-hover-end));
    box-shadow: 0 6px 16px var(--btn-delete-shadow);
    /* Simplify shadow */
}

.calculate-button {
    background: linear-gradient(135deg, var(--btn-calc-start), var(--btn-calc-end));
    box-shadow: 0 4px 12px var(--btn-calc-shadow);
}

.calculate-button:hover {
    box-shadow: 0 6px 16px var(--btn-calc-shadow);
    /* Simplify shadow */
}

.external-link-button {
    background: linear-gradient(135deg, var(--btn-external-start), var(--btn-external-end));
    box-shadow: 0 4px 12px var(--btn-external-shadow);
}

.external-link-button:hover {
    box-shadow: 0 8px 20px var(--btn-external-hover-shadow);
}


/* ----- Result Area ----- */
.result {
    margin-top: 30px;
    font-size: var(--result-font-size);
    animation: fadeIn 0.5s ease-in-out;
}

.placeholder-text {
    color: var(--text-color);
    text-align: center;
    font-style: italic;
    padding: 20px;
    background-color: var(--glass-bg);
    border-radius: var(--border-radius);
    border: 1px dashed var(--border-color);
    opacity: 0.7;
}

/* ----- Result Table Styles ----- */
.result table {
    width: 100%;
    border-collapse: collapse;
    font-size: var(--small-font-size);
    margin-bottom: 20px;
    box-shadow: 0 1px 3px var(--shadow-color);
    border-radius: var(--border-radius);
    overflow: hidden;
}

.result th,
.result td {
    border: 1px solid var(--border-color);
    padding: 10px 12px;
    text-align: left;
    vertical-align: middle;
}

.result th {
    background-color: var(--glass-bg);
    font-weight: 600;
    color: var(--primary-darker);
}

.result th.center,
.result td.center {
    text-align: center;
}

.result .value {
    text-align: right;
    font-weight: 500;
    white-space: nowrap;
}

.result tbody tr:nth-child(even) {
    background-color: var(--background-gradient);
    /* Use gradient or slightly different bg */
    background-color: var(--table-stripe-bg);
}

.result tbody tr:hover {
    background-color: var(--glass-bg);
}

.hidden-border {
    border: none;
    box-shadow: none;
    margin-bottom: 25px;
}

.hidden-border td,
.hidden-border th {
    border: none;
    padding: 8px;
    text-align: center;
    font-weight: 500;
    font-size: var(--small-font-size);
    background-color: transparent !important;
}

.hidden-border th {
    font-weight: 600;
    color: var(--primary-darker);
    padding-bottom: 15px;
}

.hidden-border tr:hover {
    background-color: transparent !important;
}

.hidden-border .button-container {
    margin-top: 10px;
    margin-bottom: 20px;
}

.hidden-border .external-link-button {
    padding: 8px 15px;
    font-size: 0.9rem;
}

/* Price color classes */
.price-up {
    color: var(--price-up-color);
    font-weight: bold;
}

.price-down {
    color: var(--price-down-color);
    font-weight: bold;
}

.ceiling-price {
    color: var(--ceiling-price-color);
    font-weight: bold;
}

.reference-price {
    color: var(--reference-price-color);
    font-weight: bold;
}

.floor-price {
    color: var(--floor-price-color);
    font-weight: bold;
}

/* Star Rating */
#star-rating {
    color: var(--star-color);
    font-size: 1.1rem;
}

#star-rating i {
    margin: 0 1px;
}

.assessment-header th {
    font-size: 1rem;
}

/* ----- Period Tabs (Sub-tabs) ----- */
.period-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-bottom: 25px;
}

.period-tab {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--primary-color);
    background-color: var(--glass-bg);
    border: 1px solid var(--primary-color);
    border-radius: 99px;
    cursor: pointer;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.period-tab:hover {
    background-color: var(--info-bg);
}

.period-tab.active {
    background-color: var(--primary-color);
    color: var(--light-text-color);
    border-color: var(--primary-darker);
}

.period-tab:disabled {
    background-color: var(--disabled-bg);
    color: var(--disabled-text);
    cursor: not-allowed;
    border-color: var(--disabled-border);
}

.period-tab:disabled:hover {
    background-color: var(--disabled-bg);
}

/* ----- Loading & Result Placeholders ----- */
.fa-spinner {
    font-size: 1.5rem;
    color: var(--primary-color);
    display: block;
    text-align: center;
    margin: 20px auto;
}

.result .icon {
    margin-right: 8px;
    color: var(--primary-color);
    width: 18px;
    text-align: center;
}

/* ----- Sub-containers for Tabs 3, 4, 7 ----- */
.listing-sub-container,
.investor-sub-container,
.admin-sub-container {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    height: 0;
    /* Keep height 0 to avoid empty space below since we aren't absolute positioning */
    overflow: hidden;
    transition: opacity 0.4s ease-in-out;
}

.container.active-container .listing-sub-container.active,
.container.active-container .investor-sub-container.active,
.container.active-container .admin-sub-container.active {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    height: auto;
    overflow: visible;
}

.table-controls {
    margin-bottom: 15px;
}

.table-controls input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    font-size: 0.95rem;
}

.table-wrapper {
    overflow-x: auto;
    max-height: 500px;
    margin-top: 15px;
}

#table-registered,
#table-approved,
#table-events-general,
#table-events-hose,
#profit-loss-table,
#avg-price-table,
#portfolio-table,
#users-table,
#recommendation-table,
#watchlist-table,
#alerts-table,
#system-notifications-table,
#sticky-notes-table,
#admin-notifications-table,
#admin-rec-table,
#holidays-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    font-size: 0.9rem;
    border: var(--glass-border);
    border-radius: 12px;
    overflow: hidden;
}

#table-registered th,
#table-approved th,
#table-events-general th,
#table-events-hose th,
#profit-loss-table th,
#avg-price-table th,
#portfolio-table th,
#users-table th,
#recommendation-table th,
#watchlist-table th,
#alerts-table th,
#system-notifications-table th,
#sticky-notes-table th,
#admin-notifications-table th,
#admin-rec-table th,
#holidays-table th {
    background: var(--table-header-bg);
    font-weight: 600;
    position: sticky;
    top: 0;
    z-index: 10;
    color: var(--primary-darker);
    border-bottom: 2px solid var(--table-header-border-bottom);
}

#table-registered td,
#table-approved td,
#table-events-general td,
#table-events-hose td,
#profit-loss-table td,
#avg-price-table td,
#portfolio-table td,
#users-table td,
#recommendation-table td,
#watchlist-table td,
#alerts-table td,
#system-notifications-table td,
#sticky-notes-table td,
#admin-notifications-table td,
#admin-rec-table td,
#holidays-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--table-border-color);
    border-right: 1px solid var(--table-border-right-color);
    text-align: left;
    vertical-align: middle;
}

#table-registered th,
#table-approved th,
#table-events-general th,
#table-events-hose th,
#profit-loss-table th,
#profit-loss-table td,
#avg-price-table th,
#avg-price-table td,
#portfolio-table th,
#portfolio-table th,
#portfolio-table td,
#users-table th,
#users-table td,
#system-notifications-table th,
#system-notifications-table td,
#sticky-notes-table th,
#sticky-notes-table td,
#admin-notifications-table th,
#admin-notifications-table td,
#holidays-table th,
#holidays-table td {
    padding: 14px 18px;
    border-bottom: 1px solid var(--table-border-color);
    border-right: 1px solid var(--table-border-right-color);
    text-align: left;
    vertical-align: middle;
}

#admin-notifications-table .message-col {
    width: 50%;
}

#admin-notifications-table .type-col {
    width: 20%;
    text-align: center;
}

#admin-notifications-table .status-col,
#admin-notifications-table .actions-col {
    width: 15%;
    text-align: center;
}

.pagination-controls {
    margin-top: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
}

.pagination-controls button {
    padding: 8px 14px;
    border: 1px solid transparent;
    background-color: var(--pagination-btn-bg);
    cursor: pointer;
    border-radius: 8px;
    font-weight: 500;
    color: var(--primary-color);
    transition: background-color 0.2s, box-shadow 0.2s, transform 0.2s;
}

.pagination-controls button:hover:not(:disabled) {
    background-color: var(--dropdown-bg);
    box-shadow: 0 2px 8px var(--shadow-md);
    transform: translateY(-1px);
}

.pagination-controls button:disabled {
    cursor: not-allowed;
    opacity: 0.5;
    background-color: var(--tab-hover-bg);
}

.pagination-controls #page-info {
    font-weight: 600;
    color: var(--text-color);
    background: var(--overlay-light);
    padding: 5px 12px;
    border-radius: 6px;
}

.loading-cell {
    text-align: center;
    padding: 60px 20px;
    font-style: italic;
    font-size: 1.1rem;
    color: var(--muted-text);
    border: none !important;
    background: var(--loading-cell-bg);
}

.loading-cell i {
    margin-right: 12px;
    color: var(--primary-color);
    font-size: 1.4rem;
}

/* ----- Iframe PTKT ----- */
.iframe-container {
    position: relative;
    overflow: hidden;
    width: 100%;
    padding-top: 75%;
    margin-top: 25px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
}

.iframe-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    width: 100%;
    height: 100%;
}

.iframe-container::after {
    content: "Nhấn ESC để thoát chế độ Toàn màn hình";
    position: fixed;
    bottom: 20px;
    right: 20px;
    padding: 8px 15px;
    background-color: var(--overlay-dark);
    color: white;
    border-radius: 4px;
    font-size: 0.9rem;
    z-index: 10000;
    opacity: 0;
    transition: opacity 0.3s;
}

.iframe-container:fullscreen::after,
.iframe-container:-webkit-full-screen::after,
.iframe-container:-moz-full-screen::after,
.iframe-container:-ms-full-screen::after {
    opacity: 1;
}

/* ----- Investor Support Tab ----- */
.investor-sub-container h2 {
    font-size: 1.4rem;
    color: var(--primary-darker);
    margin-top: 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
}

.investor-sub-container h2 i {
    margin-right: 10px;
}

.summary-container {
    margin-top: 25px;
    padding: 20px;
    background-color: var(--summary-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    text-align: center;
}

.summary-container p {
    margin: 8px 0;
    font-size: 1.1rem;
}

.summary-container .total-profit {
    color: var(--price-up-color);
    font-weight: bold;
}

.summary-container .total-loss {
    color: var(--price-down-color);
    font-weight: bold;
}

.summary-container .avg-price-result {
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-darker);
}

.delete-btn {
    background: none;
    border: none;
    color: var(--error-color);
    cursor: pointer;
    font-size: 1.2rem;
}

#profit-loss-table input,
#avg-price-table input {
    padding: 6px 8px;
    font-size: 0.9rem;
    max-width: 120px;
}

.breakeven-highlight {
    color: var(--accent-color);
    font-weight: bold;
}

/* ----- Price Lock Styles (NEW) ----- */
.lock-btn {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    color: var(--muted-text);
    padding: 5px;
    vertical-align: middle;
}

.lock-btn .fa-lock {
    color: var(--accent-color);
}

#profit-loss-table .sell-price:disabled {
    background-color: var(--disabled-bg);
    cursor: not-allowed;
    border-style: dashed;
}


/* Toggle Switch for Fees */
.fee-toggle-container {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 15px;
    margin-bottom: 15px;
}

.switch {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 34px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--disabled-border);
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 26px;
    width: 26px;
    left: 4px;
    bottom: 4px;
    background-color: var(--light-text-color);
    transition: .4s;
}

input[type="checkbox"]:checked+.slider {
    background-color: var(--secondary-color);
}

input[type="checkbox"]:focus+.slider {
    box-shadow: 0 0 1px var(--secondary-color);
}

input[type="checkbox"]:checked+.slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 34px;
}

.slider.round:before {
    border-radius: 50%;
}

/* Target Profit Results */
.target-summary-header {
    font-size: 1.2rem;
    margin-bottom: 20px;
}

.target-roadmap {
    margin-top: 25px;
    padding: 0;
    list-style: none;
    position: relative;
    border-left: 3px solid var(--border-color);
    margin-left: 30px;
    text-align: left;
}

.roadmap-step {
    margin-bottom: 25px;
    padding-left: 40px;
    position: relative;
}

.roadmap-step::before {
    content: attr(data-session);
    position: absolute;
    left: -22px;
    top: 50%;
    transform: translateY(-50%);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--modal-bg);
    border: 3px solid var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: var(--primary-color);
    font-size: 0.9rem;
}

.roadmap-step:last-child {
    margin-bottom: 0;
}

.roadmap-step.final-step::before {
    background-color: var(--secondary-color);
    border-color: var(--secondary-darker);
    color: white;
}

.roadmap-step h5 {
    font-weight: 600;
    color: var(--primary-darker);
    margin: 0 0 8px 0;
    font-size: 1.1rem;
}

.roadmap-step p {
    margin: 4px 0;
    font-size: 0.95rem;
    color: var(--text-color);
}

.roadmap-step .price-change {
    color: var(--price-up-color);
    font-weight: 500;
}

.roadmap-step .final-price {
    font-weight: bold;
    font-size: 1.05rem;
}

.dividend-pagination {
    margin-top: 10px;
    padding-bottom: 10px;
}


/* ----- Portfolio & Admin Styles ----- */
#portfolio-login-view,
#admin-login-view {
    text-align: center;
}

.portfolio-header {
    display: flex;
    flex-direction: column;
    /* Force 3 rows: Title, Controls, Actions */
    align-items: flex-start;
    /* Align everything to left */
    margin-bottom: 20px;
    gap: 15px;
    /* Spacing between rows */
}

/* Row 1: Title (Auto) */
.portfolio-header h3 {
    width: 100%;
    margin-bottom: 5px;
}

/* Row 2: Controls (Dropdowns + Create Button) */
/* Row 2: Controls (Dropdowns + Create Button) */
.portfolio-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: nowrap;
    /* Force single line on desktop */
    width: 100%;
}

.portfolio-controls .dropdown-selector {
    flex: 1;
    /* Dropdowns share available space */
    min-width: 0;
    /* Prevent overflow */
}

.portfolio-controls .action-button {
    flex: 0 0 auto;
    /* Button takes only necessary width */
    white-space: nowrap;
}

/* Row 3: Action Buttons (Add Stock, Refresh, Delete) */
.portfolio-header .button-container {
    width: 100%;
    display: flex;
    gap: 10px;
    margin-top: 5px;
    /* Small extra spacing */
    justify-content: flex-start;
}

/* Remove old specific rules if any conflict, but the above override mostly covers it */
.portfolio-header>div:not(.portfolio-controls):not(.button-container):not(.table-wrapper):not(.summary-container) {
    display: flex;
    align-items: center;
    gap: 10px;
}

.delete-portfolio-btn {
    background-color: var(--error-color) !important;
}

.delete-portfolio-btn:hover {
    background-color: var(--btn-delete-hover-end) !important;
}

.edit-btn {
    background: none;
    border: none;
    color: var(--primary-color);
    cursor: pointer;
    font-size: 1.1rem;
}

/* ----- Admin Tools (Cập nhật) ----- */
.admin-tools-container {
    margin-top: 40px;
    border-top: 2px solid var(--border-color);
    padding-top: 20px;
}

.admin-tools-container h2 {
    text-align: center;
    margin-bottom: 30px;
}

.admin-tool-section {
    margin-bottom: 30px;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    background-color: var(--panel-bg);
}

.admin-tool-section h3,
.admin-sub-container h2 {
    margin-top: 0;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 10px;
    font-size: 1.4rem;
    color: var(--primary-darker);
}

/* .admin-tool-section .button-container, .admin-tool-section button {
    margin-top: 10px;
} */
#md5-output-text {
    background-color: var(--light-bg);
    font-weight: 500;
    color: var(--primary-darker);
    cursor: pointer;
    /* Thêm con trỏ để báo hiệu có thể click */
}

/* ----- Input with Button (NEW) ----- */
.input-with-button {
    position: relative;
    display: flex;
    align-items: center;
}

.input-with-button input {
    padding-right: 50px;
    /* Tạo không gian cho nút copy */
}

.copy-btn {
    position: absolute;
    right: 1px;
    top: 1px;
    bottom: 1px;
    border: none;
    background-color: var(--primary-color);
    color: white;
    width: 45px;
    border-radius: 0 var(--border-radius) var(--border-radius) 0;
    cursor: pointer;
    font-size: 1rem;
    transition: background-color var(--transition-speed);
}

.copy-btn:hover {
    background-color: var(--primary-darker);
}

.copy-btn.copied {
    background-color: var(--secondary-color);
}

/* ----- Modal Styles ----- */
.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--overlay-bg);
    z-index: 100;
}

.modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--modal-bg);
    /* Adaptive background */
    color: var(--modal-text);
    /* Adaptive text */
    padding: 30px;
    border-radius: var(--border-radius);
    box-shadow: 0 10px 25px var(--shadow-lg);
    z-index: 1001;
    /* Higher than backdrop */
    width: 90%;
    max-width: 400px;
    animation: slideIn 0.3s ease-out;
}

#changelog-content {
    color: var(--modal-text) !important;
    background-color: var(--modal-bg) !important;
}

#changelog-content h4 {
    color: var(--primary-darker);
    margin-top: 15px;
    margin-bottom: 5px;
}

#changelog-content p {
    color: var(--text-color);
    line-height: 1.5;
    margin-bottom: 10px;
}

#changelog-content .text-muted {
    color: var(--muted-text);
    font-size: 0.9em;
    font-weight: normal;
}

/* Dropdown Menu Styles */
.dropdown-content {
    visibility: hidden;
    opacity: 0;
    pointer-events: none;
    position: absolute;
    right: 0;
    top: 100%;
    background-color: var(--dropdown-bg);
    min-width: 220px;
    box-shadow: 0 8px 16px var(--shadow-lg);
    z-index: 1000;
    border-radius: 8px;
    padding: 8px 0;
    text-align: left;
    border: 1px solid #eee;
    transition: opacity 0.2s ease, transform 0.2s ease;
    transform: translateY(-5px);
}

.dropdown-content.show {
    visibility: visible;
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0);
}

.dropdown-content a {
    color: var(--modal-text);
    padding: 10px 16px;
    text-decoration: none;
    display: block;
    transition: background-color 0.2s;
    font-size: 0.95rem;
}

.dropdown-content a:hover {
    background-color: var(--dropdown-hover);
    color: var(--primary-color);
}

.modal-content {
    position: relative;
    /* Ensure child inputs have contrast */
}

.modal-content h2 {
    margin-top: 0;
    color: var(--primary-darker);
    margin-bottom: 20px;
    text-align: center;
}

.modal-content label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
    text-align: left;
}

.modal-content input,
.modal-content select {
    width: 100%;
    padding: 10px;
    margin-bottom: 15px;

    border: 1px solid var(--border-color);
    border-radius: 4px;
    background-color: var(--input-bg);
    color: var(--text-color);
}

.modal-content .action-button {
    width: 100%;
    justify-content: center;
}

/* Horizontal Input Group */
.input-group-row {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
    align-items: flex-end;
    margin-bottom: 20px;
    /* background: #f8f9fa; */
    padding: 15px;
    border-radius: 8px;
    border: 1px solid var(--light-bg);
}

.input-group-row>div {
    display: flex;
    flex-direction: column;
}

.input-group-row label {
    margin-bottom: 5px;
    font-size: 0.9em;
    font-weight: 600;
    color: var(--text-color);
}

.input-group-row input,
.input-group-row select {
    width: 100%;
    margin-bottom: 0 !important;
    /* Consistent height */
}

.input-group-row button {
    height: 40px;
    margin-bottom: 0 !important;
    white-space: nowrap;
}

.close-button {
    position: absolute;
    top: -10px;
    right: 0;
    font-size: 2rem;
    color: var(--muted-text);
    cursor: pointer;
    line-height: 1;
    z-index: 10;
}

.close-button:hover {
    color: var(--text-color);
}

@keyframes slideIn {
    from {
        top: 45%;
        opacity: 0;
    }

    to {
        top: 50%;
        opacity: 1;
    }
}


/* ----- Responsive Design ----- */
@media (max-width: 768px) {
    body {
        padding: 15px 5px;
    }

    .container {
        width: 98%;
        padding: 20px;
    }

    h1 {
        font-size: 1.6rem;
    }

    .tab {
        padding: 10px 15px;
        font-size: 0.9rem;
    }

    .result th,
    .result td {
        padding: 8px 10px;
    }

    .result table {
        font-size: 0.8rem;
    }
}

@media (max-width: 480px) {
    body {
        padding: 10px 5px;
    }

    .container {
        padding: 15px;
    }

    h1 {
        font-size: 1.4rem;
    }

    .tab {
        padding: 8px 10px;
        font-size: 0.85rem;
    }

    .button-container {
        flex-direction: row;
        flex-wrap: wrap;
        gap: 8px;
    }

    .action-button {
        width: auto;
        flex: 1;
        padding: 8px 10px;
        font-size: 0.9rem;
        white-space: nowrap;
    }

    input[type="text"],
    input[type="number"],
    select {
        padding: 10px 12px;
        font-size: 0.95rem;
    }

    label {
        font-size: 0.95rem;
    }

    .hidden-border td,
    .hidden-border th {
        font-size: 0.75rem;
        padding: 5px;
    }

    .hidden-border .button-container {
        flex-direction: row;
        gap: 5px;
    }

    .hidden-border .external-link-button {
        flex-grow: 1;
        padding: 6px 8px;
        font-size: 0.8rem;
    }

    .iframe-container {
        padding-top: 100%;
    }

    .table-wrapper {
        overflow-x: auto;
    }

    #profit-loss-table,
    #avg-price-table,
    #portfolio-table,
    #table-registered,
    #table-approved,
    #table-events-general,
    #table-events-hose,
    #admin-notifications-table {
        font-size: 0.8rem;
        width: 100%;
        table-layout: auto;
    }

    #profit-loss-table input,
    #avg-price-table input {
        min-width: 100px;
    }

    #technical .iframe-container {
        height: 60vh;
    }

    #technical .iframe-container iframe {
        height: 100%;
    }

    /* --- Enhanced Mobile Modal Styles --- */
    .modal {
        width: 95% !important;
        max-width: none !important;
        padding: 25px 20px !important;
        /* Matched to Login Mobile */
        box-sizing: border-box !important;
        max-height: 85vh;
        overflow-y: auto;
        border-radius: var(--border-radius) !important;
    }

    .modal-content h2 {
        font-size: 1.3rem;
        text-align: center;
        margin-bottom: 20px;
        padding-right: 0;
    }

    .close-button {
        top: -10px;
        right: -5px;
        font-size: 2.2rem;
        padding: 5px;
        /* Larger touch area */
        color: var(--muted-text);
    }

    .input-group {
        margin-bottom: 15px;
    }

    /* Prevent iOS Zoom & easy reading */
    input[type="text"],
    input[type="password"],
    input[type="email"],
    input[type="number"],
    input[type="datetime-local"],
    input[type="date"],
    textarea,
    select {
        font-size: 11px !important;
        /* Critical for iOS */
        padding: 12px 15px;
    }

    /* Full width buttons for easy thumb access */
    .modal .action-button,
    .modal button[type="submit"] {
        width: 100%;
        margin-top: 10px;
        justify-content: center;
        padding: 14px;
        font-size: 1rem;
    }

    .modal .input-group label {
        margin-bottom: 5px;
        font-size: 0.9rem;
    }

    .switch {
        transform: scale(0.9);
        /* Slightly smaller switches */
    }
}

/* ----- GDKHQ Result Box Styles (Tab 2) ----- */
.gdkhq-result-box {
    text-align: center;
    padding: 20px;
    border: 2px solid var(--secondary-color);
    border-radius: var(--border-radius);
    background-color: var(--success-bg);
    margin-top: 20px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
}

.gdkhq-label {
    font-size: var(--label-font-size);
    font-weight: 600;
    color: var(--primary-darker);
    margin-bottom: 10px;
}

.gdkhq-price {
    font-size: 2.2rem;
    font-weight: 700;
    margin: 5px 0;
}

.gdkhq-formula {
    font-size: var(--small-font-size);
    color: var(--text-color);
    margin-top: 15px;
    border-top: 1px dashed var(--disabled-border);
    padding-top: 10px;
}

.gdkhq-formula-detail {
    font-size: 0.8rem;
    color: var(--muted-text);
    margin-top: 5px;
}

/* --- Notification Bell & History --- */
.notification-bell-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    margin-right: 15px;
    /* Spacing from User Menu */
}

.notification-bell-btn {
    background: none;
    border: none;
    color: var(--text-color, #333);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background 0.2s;
    position: relative;
}

.notification-bell-btn:hover {
    background-color: var(--hover-bg);
    color: var(--primary-color, #007bff);
}

.notification-badge {
    position: absolute;
    top: 5px;
    right: 5px;
    width: 8px;
    height: 8px;
    background-color: var(--alert-color);
    border-radius: 50%;
    border: 1px solid #fff;
    display: none;
    /* Show via JS if needed */
}

.notification-history-dropdown {
    display: none;
    position: absolute;
    right: 0;
    top: calc(100% + 10px);
    width: 320px;
    background: var(--container-bg);
    border-radius: 16px;
    box-shadow: 0 10px 30px var(--dropdown-shadow);
    z-index: 1000;
    z-index: 1000;
    border: 1px solid var(--border-color);
    background-color: var(--dropdown-bg);
    /* Ensure solid background fallback */
    overflow: hidden;
    animation: fadeIn 0.15s ease-out;
}

.notification-history-dropdown.show {
    display: block;
}

.notification-history-header {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-weight: 600;
    color: var(--text-color);
    /* Explicit dark color */
    background: var(--summary-bg);
    /* Slight off-white header */
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.notification-history-list {
    max-height: 400px;
    overflow-y: auto;
}

.history-item {
    padding: 12px 16px;
    border-bottom: 1px solid var(--table-border-right-color);
    font-size: 0.9rem;
    transition: background 0.2s;
    cursor: default;
}

.history-item:last-child {
    border-bottom: none;
}

.history-item:hover {
    background-color: var(--table-stripe-bg);
}

.history-item-title {
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-color);
    /* Explicit dark text */
    display: flex;
    justify-content: space-between;
}

.history-item-time {
    font-size: 0.75rem;
    color: var(--muted-text);
    font-weight: normal;
}

.history-item-content {
    color: var(--text-color);
    /* Explicit grey text */
    line-height: 1.4;
    font-size: 0.85rem;
}

.history-empty {
    padding: 20px;
    text-align: center;
    color: var(--muted-text);
    font-size: 0.9rem;
}

/* Portfolio Body: Table + Summary Split (Updated: Vertical Stack) */
.portfolio-body {
    display: flex;
    flex-direction: column;
    /* Stack vertically */
    gap: 20px;
    align-items: flex-start;
    width: 100%;
}

.portfolio-body .table-wrapper {
    width: 100%;
    /* Full width */
    overflow-x: auto;
}

.portfolio-body .summary-container {
    width: 100%;
    /* Full width */
    background-color: var(--glass-bg);
    padding: 20px;
    border-radius: var(--border-radius);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);

    /* Horizontal Layout for Items */
    display: flex;
    flex-wrap: wrap;
    justify-content: space-around;
    align-items: center;
    box-sizing: border-box;
}

.portfolio-body .summary-container p {
    margin: 10px 20px;
    font-size: 1.05rem;
}

footer {
    margin-top: 20px;
    text-align: center;
}

footer a {
    color: #7f8c8d;
    font-size: 0.9em;
    opacity: 0.7;
    text-decoration: none;
    transition: color 0.2s, opacity 0.2s;
}

footer a:hover {
    color: var(--primary-color);
    opacity: 1;
    text-decoration: underline;
}

footer p a {
    color: var(--primary-color);
    text-decoration: none;
}

footer p a:hover {
    text-decoration: underline;
}

/* --- Site Logo Styles --- */
.site-logo {
    display: flex;
    align-items: center;
    font-family: 'Poppins', sans-serif;
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: 1px;
    margin-right: auto;
    padding-left: 15px;
    cursor: default;
    user-select: none;
}

.logo-text {
    color: var(--text-color);
    transition: color 0.3s ease;
}

.logo-highlight {
    color: #3498db;
    margin-left: 5px;
    background: -webkit-linear-gradient(45deg, #3498db, #2980b9);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    transition: all 0.3s ease;
}

.site-logo:hover .logo-text {
    text-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

.site-logo:hover .logo-highlight {
    filter: brightness(1.2);
    transform: scale(1.05);
    display: inline-block;
}

body.dark-mode .logo-text {
    color: #ecf0f1;
}

@media (max-width: 600px) {
    .site-logo {
        font-size: 1.2rem;
        padding-left: 10px;
    }
}

/* Responsive: Stack on smaller screens */
@media (max-width: 992px) {
    .portfolio-body {
        flex-direction: column;
    }

    .portfolio-body .table-wrapper,
    .portfolio-body .summary-container {
        width: 100%;
        flex: none;
    }
}

/* ----- Toast Notification Styles ----- */
#toast-container {
    position: fixed;
    top: 80px;
    /* Below header */
    right: 20px;
    z-index: 10000;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    min-width: 250px;
    padding: 15px 20px;
    padding: 15px 20px;
    border-radius: 8px;
    background: var(--container-bg);
    color: var(--text-color);
    font-size: 0.95rem;
    font-weight: 500;
    box-shadow: 0 4px 12px var(--toast-shadow);
    display: flex;
    align-items: center;
    justify-content: space-between;
    animation: slideInRight 0.3s ease-out forwards, fadeOut 0.5s ease-in 4.5s forwards;
    border-left: 5px solid var(--disabled-border);
    opacity: 0;
    /* Start hidden for animation */
}

@keyframes slideInRight {
    from {
        transform: translateX(100%);
        opacity: 0;
    }

    to {
        transform: translateX(0);
        opacity: 1;
    }
}

@keyframes fadeOut {
    to {
        opacity: 0;
        visibility: hidden;
    }
}

.toast.toast-success {
    border-left-color: var(--success-color);
    background: var(--success-bg);
}

.toast.toast-error {
    border-left-color: var(--error-color);
    background: var(--alert-bg);
}

.toast.toast-warning {
    border-left-color: var(--warning-color);
    background: var(--warning-bg);
}

.toast.toast-info {
    border-left-color: var(--info-color);
    background: var(--info-bg);
}

.tabs .tab i {
    margin-right: 8px;
    font-size: 1.1em;
    pointer-events: none;
    /* Prevents icon from intercepting clicks */
}

.action-button i,
.period-tab i {
    pointer-events: none;
    /* Prevents icon from intercepting clicks */
}

.toast i {
    margin-right: 10px;
    font-size: 1.2rem;
}

.toast.toast-success i {
    color: var(--success-color);
}

.toast.toast-error i {
    color: var(--error-color);
}

.toast.toast-warning i {
    color: var(--warning-color);
}

.toast.toast-info i {
    color: var(--info-color);
}

/* --- Recommendations & New Tabs --- */

.price-points {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.price-points span {
    font-size: 0.9em;
    background: var(--hover-bg);
    padding: 2px 6px;
    border-radius: 4px;
}

.rec-status {
    font-weight: bold;
    padding: 4px 8px;
    border-radius: 6px;
    display: inline-block;
    min-width: 80px;
    text-align: center;
}

.status-buy {
    background: linear-gradient(135deg, var(--status-buy-start), var(--status-buy-end));
    color: white;
    box-shadow: 0 2px 8px var(--status-buy-shadow);
}

.status-sell {
    background: linear-gradient(135deg, var(--status-sell-start), var(--status-sell-end));
    color: white;
    box-shadow: 0 2px 8px var(--status-sell-shadow);
}

.status-wait {
    background: linear-gradient(135deg, var(--status-wait-start), var(--status-wait-end));
    color: white;
    box-shadow: 0 2px 8px var(--status-wait-shadow);
}

.stock-tooltip {
    cursor: help;
    border-bottom: 1px dotted var(--glass-border);
}

/* Watchlist & Alerts */
.delete-btn {
    background: var(--btn-delete-shadow);
    color: var(--btn-delete-start);
    border: none;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.3s, color 0.3s;
}

.delete-btn:hover {
    background: rgba(239, 68, 68, 0.8);
    color: white;
}

.login-wall {
    text-align: center;
    padding: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 16px;
    border: 1px dashed rgba(255, 255, 255, 0.2);
    margin: 20px 0;
}

.login-wall h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.login-wall a {
    color: var(--secondary-color);
    font-weight: bold;
    text-decoration: underline;
}

/* Modal */
.modal-content {
    /* background: #1e1e1e;
    /* Dark theme default fallback */
    /* background: rgba(30, 30, 30, 0.95); */
    /* border: var(--glass-border); */
    color: var(--text-color);
    background-color: var(--container-bg);
}

/* Delete Watchlist Modal Styles */
.delete-watchlist-container {
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 20px;
    padding: 10px;
    background: var(--input-bg);
}

.delete-list-item {
    padding: 8px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
}

.delete-list-item:last-child {
    border-bottom: none;
}

.delete-list-item:hover {
    background: var(--hover-bg);
}

/* Eliminate 300ms click delay on mobile devices */
a,
button,
input,
select,
textarea,
.tab {
    touch-action: manipulation;
}

.delete-warning-box {
    background: var(--notif-alert-bg);
    border: 1px solid var(--notif-alert-border);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 20px;
    color: var(--text-color);
}

.delete-warning-box strong {
    color: var(--error-color);
}


.error-text {
    color: var(--error-color);
    font-weight: bold;
    font-style: italic;
    text-align: center;
}

/* =========================================
   LOGIN & REGISTER PAGE STYLES
   ========================================= */
body.login-page {
    background: var(--background-gradient);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    margin: 0;
    /* Ensure no default margin breaks centering */
}

.login-container {
    background-color: var(--container-bg);
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 10px 25px var(--shadow-color);
    width: 100%;
    max-width: 400px;
    animation: fadeIn 0.5s ease-out;
    border: 1px solid var(--border-color);
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.login-header h1 {
    font-size: 2rem;
    color: var(--primary-darker);
    margin-bottom: 10px;
}

.login-header p {
    color: var(--muted-text);
    font-size: 0.95rem;
}

.login-form .input-group {
    margin-bottom: 20px;
}

.login-form .input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-color);
}

.login-form .input-group input {
    width: 100%;
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s, box-shadow 0.3s, background-color 0.3s;
    background: var(--input-bg);
    color: var(--text-color);
}

.login-form .input-group input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--input-focus-shadow);
    outline: none;
    background: var(--input-focus-bg);
}

.login-form .action-button {
    width: 100%;
    margin-top: 10px;
    padding: 14px;
    font-size: 1.1rem;
}

.error-message {
    color: var(--error-color);
    background-color: var(--notif-alert-bg);
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 0.9rem;
    display: none;
    border: 1px solid var(--notif-alert-border);
}

.success-message {
    color: var(--success-text);
    background-color: var(--success-bg);
    padding: 10px;
    border-radius: 6px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 0.9rem;
    display: none;
    border: 1px solid var(--notif-success-border);
}

.back-link {
    display: block;
    text-align: center;
    margin-top: 20px;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 500;
}

.back-link:visited,
.login-container a:visited {
    color: var(--primary-color);
}

.back-link:hover {
    text-decoration: underline;
}

/* Dark Mode Overrides for Login */
[data-theme="dark"] .login-container {
    background-color: var(--light-bg);
    border: 1px solid rgba(255, 255, 255, 0.15);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Mobile Responsiveness for Login */
@media (max-width: 480px) {
    .login-container {
        padding: 25px 20px;
        max-width: 90%;
    }

    .login-header h1 {
        font-size: 1.6rem;
    }

    .login-form .action-button {
        padding: 12px;
        font-size: 1rem;
    }
}

/* Fix Header Login Button Contrast in Dark Mode */
[data-theme="dark"] #login-btn-container .btn-primary {
    background: var(--primary-color) !important;
    color: white !important;
    box-shadow: 0 4px 10px rgba(10, 132, 255, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.1);
    text-decoration: none !important;
    /* Ensure no underline */
}

[data-theme="dark"] #login-btn-container .btn-primary:hover {
    background: var(--primary-darker) !important;
    box-shadow: 0 6px 15px var(--shadow-primary-strong);
}

/* =========================================
   Refactored Utility Classes (v2.2.3)
   ========================================= */

.theme-toggle-fixed {
    position: absolute;
    top: 20px;
    right: 20px;
}

.text-center {
    text-align: center;
}

.mt-15 {
    margin-top: 15px;
}

.mb-20 {
    margin-bottom: 20px;
}

.mt-30 {
    margin-top: 30px;
}

.w-100 {
    width: 100%;
}

.d-none {
    display: none;
}

.d-flex {
    display: flex;
}

.align-center {
    align-items: center;
}

.justify-center {
    justify-content: center;
}

.justify-between {
    justify-content: space-between;
}

.gap-10 {
    gap: 10px;
}

.gap-15 {
    gap: 15px;
}

.gap-40 {
    gap: 40px;
}

.flex-wrap {
    flex-wrap: wrap;
}

.flex-col {
    flex-direction: column;
}

.flex-1 {
    flex: 1;
}

.admin-header {
    width: 95%;
    max-width: 1000px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: none;
}

.admin-action-group {
    display: flex;
    gap: 15px;
    align-items: center;
}

.admin-btn-theme {
    padding: 8px 12px;
    font-size: 0.9rem;
    margin-right: 10px;
}

.admin-btn-home {
    padding: 8px 15px;
    font-size: 0.9rem;
    text-decoration: none;
}

.user-menu-wrapper {
    position: relative;
}

.user-greeting {
    cursor: pointer;
    user-select: none;
}

.admin-settings-box {
    padding: 20px;
    background: var(--panel-bg);
    border-radius: 12px;
}

.admin-form-input-wrapper {
    flex: 1;
    min-width: 250px;
}

.header-theme-btn {
    margin-right: 10px;
    width: 40px;
    justify-content: center;
    padding: 0;
}

.login-btn-container {
    display: flex;
    gap: 10px;
    align-items: center;
}


.fw-500 {
    font-weight: 500;
}

.mb-0 {
    margin-bottom: 0;
}

.text-muted {
    color: var(--text-secondary);
}

.d-block {
    display: block;
}

.mt-5 {
    margin-top: 5px;
}

.mt-20 {
    margin-top: 20px;
}

.pt-20 {
    padding-top: 20px;
}

.border-top {
    border-top: 1px solid var(--border-light);
}

.fs-11 {
    font-size: 1.1rem;
}

.mw-800 {
    max-width: 800px;
}

.w-full {
    width: 100%;
}

.input-std {
    padding: 8px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
}

.register-link {
    color: var(--primary-color);
    text-decoration: none;
    font-size: 0.9rem;
}

.w-40-pct {
    width: 40%;
}

/* Mobile Header Adjustments */
@media (max-width: 768px) {
    .header-top {
        flex-wrap: wrap;
        padding-bottom: 10px;
        gap: 10px;
        justify-content: space-between;
    }

    /* Row 1: Logo takes most space, Theme & Bell on right */
    .site-logo {
        order: 1;
        width: calc(100% - 110px);
        /* Leave space for buttons */
        flex-grow: 0;
        margin-right: 0;
    }

    #theme-toggle-btn {
        order: 2;
        margin: 0;
    }

    /* Flatten struct */
    #login-btn-container {
        display: contents;
    }

    .notification-bell-wrapper {
        order: 3;
        margin: 0;
    }

    /* Row 2: Install & Greeting */
    #pwa-install-btn {
        order: 4;
        margin-left: 0;
        margin-top: 5px;
        width: auto;
    }

    .user-menu-wrapper {
        order: 5;
        margin-left: auto;
        /* Push to right */
        margin-top: 5px;
        width: auto;
    }

    .user-greeting {
        padding: 6px 12px;
        font-size: 0.85rem;
    }
}