/**
 * ==============================================================================
 * jrdomains.org Ecosystem Universal Design System
 * Modeled directly from SkyDrive's obsidian dark & daylight light UI foundations.
 * ==============================================================================
 */

/* ==============================================================================
   1. Design Tokens & Color Palettes
   ============================================================================== */
:root {
    /* Base Obsidian Dark Surfaces */
    --bg-base: #080b11;
    --bg-surface: #0e1422;
    --bg-surface-elevated: #151d2f;
    --bg-card: rgba(18, 26, 44, 0.72);
    --bg-card-hover: rgba(26, 38, 64, 0.88);
    --bg-glass: rgba(14, 20, 34, 0.82);

    /* Subtle Borders & Dividers */
    --border-subtle: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(56, 189, 248, 0.4);
    --border-strong: rgba(255, 255, 255, 0.16);
    --border-focus: rgba(56, 189, 248, 0.65);

    /* Default Brand Accent (SkyDrive Cyan, easily overridden per app) */
    --primary: #0284c7;
    --primary-hover: #0369a1;
    --primary-light: #38bdf8;
    --primary-glow: rgba(56, 189, 248, 0.28);
    --primary-gradient: linear-gradient(135deg, #38bdf8 0%, #3b82f6 50%, #8b5cf6 100%);
    --accent-gradient: linear-gradient(135deg, #0ea5e9 0%, #38bdf8 100%);
    --card-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.04) 0%, rgba(255, 255, 255, 0.008) 100%);

    /* Functional Feedback Colors */
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-faint: #64748b;
    --danger: #f43f5e;
    --danger-hover: #e11d48;
    --success: #10b981;
    --warning: #f59e0b;

    /* Typography */
    --font-heading: 'Outfit', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Interactive States */
    --bg-hover-subtle: rgba(255, 255, 255, 0.08);
    --nav-active-bg: rgba(2, 132, 199, 0.16);
    --nav-active-text: #e0f2fe;
    --nav-active-border: rgba(56, 189, 248, 0.35);

    /* Layout & Geometry */
    --header-height: 64px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    --radius-full: 9999px;
    --shadow-soft: 0 12px 36px -10px rgba(0, 0, 0, 0.65);
    --shadow-glow: 0 0 30px -5px rgba(56, 189, 248, 0.22);
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==============================================================================
   2. Daylight Light Theme
   ============================================================================== */
[data-theme="light"] {
    /* Base Daylight Surfaces */
    --bg-base: #f1f5f9;
    --bg-surface: #ffffff;
    --bg-surface-elevated: #f8fafc;
    --bg-card: rgba(255, 255, 255, 0.94);
    --bg-card-hover: #ffffff;
    --bg-glass: rgba(255, 255, 255, 0.88);

    /* Clean Borders & Dividers */
    --border-subtle: rgba(15, 23, 42, 0.08);
    --border-hover: rgba(2, 132, 199, 0.4);
    --border-strong: rgba(15, 23, 42, 0.14);
    --border-focus: rgba(2, 132, 199, 0.6);

    /* Brand Accents optimized for high contrast on light */
    --primary: #0284c7;
    --primary-hover: #0369a1;
    --primary-light: #0284c7;
    --primary-glow: rgba(2, 132, 199, 0.18);
    --primary-gradient: linear-gradient(135deg, #0284c7 0%, #2563eb 50%, #7c3aed 100%);
    --accent-gradient: linear-gradient(135deg, #0284c7 0%, #0ea5e9 100%);
    --card-gradient: linear-gradient(180deg, rgba(255, 255, 255, 0.95) 0%, rgba(248, 250, 252, 0.85) 100%);

    /* Text Colors */
    --text-main: #0f172a;
    --text-muted: #475569;
    --text-faint: #94a3b8;
    --danger: #e11d48;
    --danger-hover: #be123c;
    --success: #059669;
    --warning: #d97706;

    /* Interactive States */
    --bg-hover-subtle: rgba(15, 23, 42, 0.05);
    --nav-active-bg: rgba(2, 132, 199, 0.1);
    --nav-active-text: #0284c7;
    --nav-active-border: rgba(2, 132, 199, 0.3);

    /* Shadows */
    --shadow-soft: 0 10px 30px -8px rgba(15, 23, 42, 0.09), 0 4px 12px -2px rgba(15, 23, 42, 0.05);
    --shadow-glow: 0 0 25px -5px rgba(2, 132, 199, 0.15);
}

/* ==============================================================================
   3. Base Reset & Custom Scrollbars
   ============================================================================== */
*, *::before, *::after {
    box-sizing: border-box;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-base);
    color: var(--text-main);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Ecosystem Standard Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.24);
}
[data-theme="light"] ::-webkit-scrollbar-thumb {
    background: rgba(15, 23, 42, 0.15);
}
[data-theme="light"] ::-webkit-scrollbar-thumb:hover {
    background: rgba(15, 23, 42, 0.3);
}

/* ==============================================================================
   4. Universal Top Bar Shell
   ============================================================================== */
.universal-top-bar, .app-header {
    height: var(--header-height);
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border-subtle);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.25rem;
    gap: 1rem;
    z-index: 50;
    height: 60px;
    flex-shrink: 0;
    position: relative;
    box-sizing: border-box;
}

.top-bar-left, .header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.top-bar-center {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    max-width: 580px;
}

.top-bar-right, .header-right {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-left: auto;
    flex-shrink: 0;
}

/* ==============================================================================
   5. Ecosystem Brand / Banner (<ecosystem-brand> & .brand-wrap)
   ============================================================================== */
ecosystem-brand {
    display: inline-flex;
    align-items: center;
}

.brand-wrap, .brand-logo {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    text-decoration: none;
    color: inherit;
    cursor: pointer;
    user-select: none;
}

.brand-app-icon, .brand-logo img {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    object-fit: cover;
    flex-shrink: 0;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.brand-text h1, .brand-name {
    font-family: var(--font-heading);
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--text-main);
    margin: 0;
    white-space: nowrap;
}

.brand-text span {
    font-size: 0.65rem;
    color: var(--text-faint);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 600;
}

/* ==============================================================================
   6. Universal Navigation Tabs (<ecosystem-nav> & .universal-nav-tabs)
   ============================================================================== */
ecosystem-nav {
    display: inline-flex;
    align-items: center;
}

.universal-nav-tabs {
    display: flex;
    align-items: center;
    gap: 4px;
    background: rgba(255, 255, 255, 0.04);
    padding: 3px 4px;
    border-radius: 9px;
    border: 1px solid var(--border-subtle);
    margin-left: 6px;
    flex-shrink: 0;
}

[data-theme="light"] .universal-nav-tabs {
    background: rgba(15, 23, 42, 0.04);
    border-color: rgba(15, 23, 42, 0.08);
}

.universal-nav-tabs .nav-tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 5px 12px;
    border-radius: 7px;
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    transition: var(--transition-fast);
    border: 1px solid transparent;
    white-space: nowrap;
    flex-shrink: 0;
}

.universal-nav-tabs .nav-tab span {
    white-space: nowrap;
}

.universal-nav-tabs .nav-tab-icon {
    flex-shrink: 0;
}

.universal-nav-tabs .nav-tab:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.06);
}

[data-theme="light"] .universal-nav-tabs .nav-tab:hover {
    color: var(--text-main);
    background: rgba(15, 23, 42, 0.06);
}

.universal-nav-tabs .nav-tab.active {
    color: var(--primary-light, var(--primary));
    background: color-mix(in srgb, var(--primary) 14%, transparent);
    border-color: color-mix(in srgb, var(--primary) 32%, transparent);
    font-weight: 600;
}

[data-theme="light"] .universal-nav-tabs .nav-tab.active {
    color: var(--primary);
    background: color-mix(in srgb, var(--primary) 12%, transparent);
    border-color: color-mix(in srgb, var(--primary) 28%, transparent);
}

/* App-Specific Palette Accents on Active Tab matching Logo Colors */
/* SkyDrive: Cyan / Sky */
.universal-nav-tabs .nav-tab.active[data-app="skydrive"],
.universal-nav-tabs .nav-tab.active[href="/"] {
    color: #38bdf8 !important;
    background: rgba(56, 189, 248, 0.15) !important;
    border-color: rgba(56, 189, 248, 0.35) !important;
    box-shadow: 0 0 12px -2px rgba(56, 189, 248, 0.25);
}
[data-theme="light"] .universal-nav-tabs .nav-tab.active[data-app="skydrive"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/"] {
    color: #0284c7 !important;
    background: rgba(2, 132, 199, 0.12) !important;
    border-color: rgba(2, 132, 199, 0.3) !important;
    box-shadow: none;
}

/* Nexus Point Chat: Emerald / Mint */
.universal-nav-tabs .nav-tab.active[data-app="chat"],
.universal-nav-tabs .nav-tab.active[href="/chat"],
.universal-nav-tabs .nav-tab.active[href="/chat/"] {
    color: #34d399 !important;
    background: rgba(16, 185, 129, 0.15) !important;
    border-color: rgba(52, 211, 153, 0.35) !important;
    box-shadow: 0 0 12px -2px rgba(16, 185, 129, 0.25);
}
[data-theme="light"] .universal-nav-tabs .nav-tab.active[data-app="chat"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/chat"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/chat/"] {
    color: #059669 !important;
    background: rgba(5, 150, 105, 0.12) !important;
    border-color: rgba(5, 150, 105, 0.3) !important;
    box-shadow: none;
}

/* OmniChat AI: Purple / Violet */
.universal-nav-tabs .nav-tab.active[data-app="ai"],
.universal-nav-tabs .nav-tab.active[href="/ai"],
.universal-nav-tabs .nav-tab.active[href="/ai/"] {
    color: #c084fc !important;
    background: rgba(139, 92, 246, 0.16) !important;
    border-color: rgba(192, 132, 252, 0.38) !important;
    box-shadow: 0 0 12px -2px rgba(139, 92, 246, 0.25);
}
[data-theme="light"] .universal-nav-tabs .nav-tab.active[data-app="ai"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/ai"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/ai/"] {
    color: #7c3aed !important;
    background: rgba(124, 58, 237, 0.12) !important;
    border-color: rgba(124, 58, 237, 0.3) !important;
    box-shadow: none;
}

/* NovaDocs: Deep Royal / Sapphire Blue */
.universal-nav-tabs .nav-tab.active[data-app="docs"],
.universal-nav-tabs .nav-tab.active[href="/docs"],
.universal-nav-tabs .nav-tab.active[href="/docs/"] {
    color: #60a5fa !important;
    background: rgba(37, 99, 235, 0.18) !important;
    border-color: rgba(96, 165, 250, 0.38) !important;
    box-shadow: 0 0 12px -2px rgba(37, 99, 235, 0.28);
}
[data-theme="light"] .universal-nav-tabs .nav-tab.active[data-app="docs"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/docs"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/docs/"] {
    color: #1d4ed8 !important;
    background: rgba(29, 78, 216, 0.12) !important;
    border-color: rgba(29, 78, 216, 0.3) !important;
    box-shadow: none;
}

/* ChronoSync: Cyan / Teal */
.universal-nav-tabs .nav-tab.active[data-app="calendar"],
.universal-nav-tabs .nav-tab.active[href="/calendar"],
.universal-nav-tabs .nav-tab.active[href="/calendar/"] {
    color: #2becec !important;
    background: rgba(43, 236, 236, 0.16) !important;
    border-color: rgba(43, 236, 236, 0.38) !important;
    box-shadow: 0 0 12px -2px rgba(43, 236, 236, 0.25);
}
[data-theme="light"] .universal-nav-tabs .nav-tab.active[data-app="calendar"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/calendar"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/calendar/"] {
    color: #0891b2 !important;
    background: rgba(8, 145, 178, 0.12) !important;
    border-color: rgba(8, 145, 178, 0.3) !important;
    box-shadow: none;
}

/* Prism Gallery: Magenta / Pink */
.universal-nav-tabs .nav-tab.active[data-app="gallery"],
.universal-nav-tabs .nav-tab.active[href="/gallery"],
.universal-nav-tabs .nav-tab.active[href="/gallery/"] {
    color: #f472b6 !important;
    background: rgba(236, 72, 153, 0.16) !important;
    border-color: rgba(244, 114, 182, 0.38) !important;
    box-shadow: 0 0 12px -2px rgba(236, 72, 153, 0.25);
}
[data-theme="light"] .universal-nav-tabs .nav-tab.active[data-app="gallery"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/gallery"],
[data-theme="light"] .universal-nav-tabs .nav-tab.active[href="/gallery/"] {
    color: #db2777 !important;
    background: rgba(219, 39, 119, 0.12) !important;
    border-color: rgba(219, 39, 119, 0.3) !important;
    box-shadow: none;
}

/* Responsive collapse: hide tab labels on medium screens, keep icons */
@media (max-width: 1100px) {
    .universal-nav-tabs .nav-tab span {
        display: none;
    }
    .universal-nav-tabs .nav-tab {
        padding: 5px 8px;
    }
}

@media (max-width: 768px) {
    .universal-nav-tabs {
        display: none; /* Collapses into mobile sidebar on small screens */
    }
}

/* ==============================================================================
   7. Theme Toggle Button (.theme-toggle-btn)
   ============================================================================== */
.theme-toggle-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    flex-shrink: 0;
    padding: 0;
}

.theme-toggle-btn:hover {
    color: var(--primary-light, var(--primary));
    border-color: var(--border-hover);
    background: var(--bg-surface-elevated);
    box-shadow: 0 0 12px var(--primary-glow);
}

.theme-toggle-btn .theme-toggle-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1;
}

/* ==============================================================================
   8. Ecosystem User Profile Badge (<ecosystem-user> & .user-profile-badge)
   ============================================================================== */
ecosystem-user {
    display: inline-flex;
    align-items: center;
}

.user-profile-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--bg-surface-elevated);
    border: 1px solid var(--border-subtle);
    padding: 3px 8px 3px 4px;
    border-radius: 30px;
    user-select: none;
}

.user-avatar-wrap {
    width: 28px;
    height: 28px;
    position: relative;
    cursor: pointer;
    border-radius: 50%;
    overflow: hidden;
    flex-shrink: 0;
    transition: var(--transition-fast);
}

.user-avatar-wrap:hover {
    transform: scale(1.05);
    box-shadow: 0 0 0 2px var(--primary);
}

.user-avatar-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 50%;
    display: block;
}

.user-avatar-initial {
    width: 100%;
    height: 100%;
    background: var(--primary-gradient);
    color: #fff;
    font-weight: 700;
    font-size: 12px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-transform: uppercase;
}

.user-info-text {
    display: flex;
    flex-direction: column;
    cursor: pointer;
    line-height: 1.15;
    text-align: left;
}

.user-name {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-main);
    transition: var(--transition-fast);
    white-space: nowrap;
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.user-info-text:hover .user-name {
    color: var(--primary-light, var(--primary));
}

.user-displayname {
    font-size: 10px;
    font-weight: 400;
    color: var(--text-muted);
    max-width: 110px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.settings-btn, .signout-btn, .signin-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    font-size: 11px;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 5px;
    transition: var(--transition-fast);
    outline: none;
    text-decoration: none;
}

.settings-btn:hover {
    color: var(--primary-light, var(--primary));
    border-color: var(--primary);
    background: color-mix(in srgb, var(--primary) 12%, transparent);
}

.settings-btn:hover svg {
    transform: rotate(45deg);
    transition: transform 0.3s ease;
}

.signout-btn:hover {
    color: var(--danger);
    border-color: rgba(239, 68, 68, 0.4);
    background: rgba(239, 68, 68, 0.12);
}

.signin-btn {
    color: #fff;
    background: var(--primary);
    border-color: var(--primary);
}
.signin-btn:hover {
    background: var(--primary-hover);
}

@media (max-width: 860px) {
    .settings-btn span, .signout-btn span {
        display: none;
    }
    .settings-btn, .signout-btn {
        padding: 4px 6px;
    }
}

/* ==============================================================================
   9. Common Buttons & Interactive Primitives
   ============================================================================== */
.primary-btn, .btn-primary {
    background: var(--primary);
    color: #fff;
    border: none;
    padding: 8px 16px;
    font-size: 13px;
    font-weight: 600;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
    box-shadow: 0 2px 8px var(--primary-glow);
    text-decoration: none;
}

.primary-btn:hover, .btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px var(--primary-glow);
}

.primary-btn.sm, .btn-sm {
    padding: 5px 12px;
    font-size: 12px;
}

.secondary-btn, .btn-secondary {
    background: var(--bg-surface-elevated);
    color: var(--text-main);
    border: 1px solid var(--border-subtle);
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: var(--transition-fast);
    text-decoration: none;
}

.secondary-btn:hover, .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--border-strong);
    transform: translateY(-1px);
}

[data-theme="light"] .secondary-btn:hover, [data-theme="light"] .btn-secondary:hover {
    background: rgba(15, 23, 42, 0.06);
}

.ghost-btn, .btn-ghost {
    background: transparent;
    color: var(--text-muted);
    border: 1px solid var(--border-subtle);
    padding: 7px 14px;
    font-size: 13px;
    font-weight: 500;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: var(--transition-fast);
}

.ghost-btn:hover, .btn-ghost:hover {
    color: var(--text-main);
    border-color: var(--border-strong);
}

.icon-btn, .mobile-toggle-btn {
    background: var(--bg-surface);
    border: 1px solid var(--border-subtle);
    color: var(--text-muted);
    width: 34px;
    height: 34px;
    border-radius: var(--radius-sm);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition-fast);
    flex-shrink: 0;
    padding: 0;
}

.icon-btn:hover, .mobile-toggle-btn:hover {
    color: var(--text-main);
    border-color: var(--border-hover);
    background: var(--bg-surface-elevated);
}

/* ==============================================================================
   10. Ecosystem Modals & Dialogs
   ============================================================================== */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: ecosystemFadeIn 0.2s ease;
}

@keyframes ecosystemFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-dialog {
    background: var(--bg-surface);
    border: 1px solid var(--border-strong);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-soft);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: ecosystemScaleUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
    max-width: 540px;
    width: 100%;
}

@keyframes ecosystemScaleUp {
    from { transform: scale(0.95); opacity: 0; }
    to { transform: scale(1); opacity: 1; }
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-subtle);
    background: var(--bg-surface-elevated);
}

.modal-title {
    font-family: var(--font-heading);
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    margin: 0;
}

.modal-close-btn {
    background: transparent;
    border: none;
    font-size: 16px;
    color: var(--text-muted);
    cursor: pointer;
    padding: 6px 8px;
    border-radius: 6px;
    transition: var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--text-main);
    background: var(--bg-hover-subtle);
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 14px 20px;
    border-top: 1px solid var(--border-subtle);
    background: var(--bg-surface-elevated);
}

/* ==============================================================================
   11. Ecosystem Toast Notifications
   ============================================================================== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 10000;
    display: flex;
    flex-direction: column-reverse;
    gap: 10px;
    pointer-events: none;
}

.toast-item {
    pointer-events: auto;
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 280px;
    max-width: 440px;
    padding: 12px 18px;
    border-radius: 10px;
    background: var(--bg-surface-elevated);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid var(--border-strong);
    box-shadow: var(--shadow-soft);
    font-size: 13px;
    font-weight: 500;
    color: var(--text-main);
    transform: translateX(100%);
    opacity: 0;
    transition: all 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.toast-item.toast-show {
    transform: translateX(0);
    opacity: 1;
}

.toast-item.toast-hide {
    transform: translateX(40px);
    opacity: 0;
}

.toast-item.toast-success {
    border-left: 4px solid #10b981;
}

.toast-item.toast-error {
    border-left: 4px solid #ef4444;
}

.toast-item.toast-info {
    border-left: 4px solid var(--primary);
}