/* ========================================
   XP ACADEMY - THEME SYSTEM
   Light / Dark / Auto
   ======================================== */

/* ---- Light theme (default) ---- */
:root,
[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --bg-dark: #111827;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --text-light: #9ca3af;
    --border-color: #e5e7eb;
    --border-light: #f3f4f6;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --header-bg: #ffffff;
    --header-border: rgba(0, 0, 0, 0.1);
    --header-text: #333333;
    --footer-bg: #2d3748;
    --footer-text: #cbd5e0;
    --footer-border: #4a5568;
    --input-bg: #ffffff;
    --input-border: #e5e7eb;
    --card-bg: #ffffff;
    --code-bg: #f3f4f6;
    --overlay-bg: rgba(0, 0, 0, 0.5);
}

/* ---- Dark theme ---- */
[data-theme="dark"] {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --bg-dark: #0a0a1a;
    --text-primary: #e2e8f0;
    --text-secondary: #a0aec0;
    --text-light: #718096;
    --border-color: #2d3748;
    --border-light: #1e293b;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
    --header-bg: #1a1a2e;
    --header-border: rgba(255, 255, 255, 0.08);
    --header-text: #e2e8f0;
    --footer-bg: #0a0a1a;
    --footer-text: #a0aec0;
    --footer-border: #2d3748;
    --input-bg: #16213e;
    --input-border: #2d3748;
    --card-bg: #1a1a2e;
    --code-bg: #16213e;
    --overlay-bg: rgba(0, 0, 0, 0.7);
}

/* ---- Auto theme: follow system preference ---- */
@media (prefers-color-scheme: dark) {
    [data-theme="auto"] {
        --bg-primary: #1a1a2e;
        --bg-secondary: #16213e;
        --bg-tertiary: #0f3460;
        --bg-dark: #0a0a1a;
        --text-primary: #e2e8f0;
        --text-secondary: #a0aec0;
        --text-light: #718096;
        --border-color: #2d3748;
        --border-light: #1e293b;
        --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3);
        --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.4);
        --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.4);
        --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
        --header-bg: #1a1a2e;
        --header-border: rgba(255, 255, 255, 0.08);
        --header-text: #e2e8f0;
        --footer-bg: #0a0a1a;
        --footer-text: #a0aec0;
        --footer-border: #2d3748;
        --input-bg: #16213e;
        --input-border: #2d3748;
        --card-bg: #1a1a2e;
        --code-bg: #16213e;
        --overlay-bg: rgba(0, 0, 0, 0.7);
    }
}

/* ---- Global dark overrides for elements with inline styles ---- */
[data-theme="dark"] body,
[data-theme="dark"] .section {
    background-color: var(--bg-secondary);
    color: var(--text-primary);
}

[data-theme="dark"] .card,
[data-theme="dark"] .section-card,
[data-theme="dark"] .stat-card,
[data-theme="dark"] .admin-card {
    background: var(--card-bg) !important;
    color: var(--text-primary);
    border-color: var(--border-color) !important;
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] textarea,
[data-theme="dark"] .form-control,
[data-theme="dark"] .form-select {
    background-color: var(--input-bg) !important;
    border-color: var(--input-border) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .form-label,
[data-theme="dark"] label {
    color: var(--text-primary);
}

[data-theme="dark"] table,
[data-theme="dark"] .admin-table {
    color: var(--text-primary);
}

[data-theme="dark"] th {
    background-color: var(--bg-tertiary) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] td {
    border-color: var(--border-color) !important;
}

[data-theme="dark"] tr:hover {
    background-color: var(--bg-tertiary) !important;
}

[data-theme="dark"] .alert-success {
    background: #064e3b;
    color: #6ee7b7;
}

[data-theme="dark"] .alert-error {
    background: #7f1d1d;
    color: #fca5a5;
}

[data-theme="dark"] .alert-warning {
    background: #78350f;
    color: #fcd34d;
}

[data-theme="dark"] .alert-info {
    background: #1e3a5f;
    color: #93c5fd;
}

[data-theme="dark"] code,
[data-theme="dark"] pre {
    background: var(--code-bg);
    color: var(--text-primary);
}

[data-theme="dark"] .modal-content {
    background: var(--card-bg) !important;
    color: var(--text-primary);
}

[data-theme="dark"] .list-group-item {
    background: var(--card-bg) !important;
    border-color: var(--border-color) !important;
    color: var(--text-primary);
}

[data-theme="dark"] .card-header {
    background: var(--bg-tertiary) !important;
    border-color: var(--border-color) !important;
}

[data-theme="dark"] .empty-state-inline h3,
[data-theme="dark"] h1, [data-theme="dark"] h2,
[data-theme="dark"] h3, [data-theme="dark"] h4,
[data-theme="dark"] h5, [data-theme="dark"] h6 {
    color: var(--text-primary);
}

[data-theme="dark"] .text-muted,
[data-theme="dark"] .text-secondary {
    color: var(--text-secondary) !important;
}

/* Auto theme inherits same dark overrides */
@media (prefers-color-scheme: dark) {
    [data-theme="auto"] body,
    [data-theme="auto"] .section {
        background-color: var(--bg-secondary);
        color: var(--text-primary);
    }

    [data-theme="auto"] .card,
    [data-theme="auto"] .section-card,
    [data-theme="auto"] .stat-card {
        background: var(--card-bg) !important;
        color: var(--text-primary);
    }

    [data-theme="auto"] input,
    [data-theme="auto"] select,
    [data-theme="auto"] textarea,
    [data-theme="auto"] .form-control,
    [data-theme="auto"] .form-select {
        background-color: var(--input-bg) !important;
        border-color: var(--input-border) !important;
        color: var(--text-primary) !important;
    }

    [data-theme="auto"] h1, [data-theme="auto"] h2,
    [data-theme="auto"] h3, [data-theme="auto"] h4 {
        color: var(--text-primary);
    }
}

/* ---- Theme toggle button ---- */
.theme-toggle {
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    cursor: pointer;
    padding: 6px 10px;
    font-size: 1.1rem;
    line-height: 1;
    transition: all 0.2s ease;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 4px;
}

.theme-toggle:hover {
    border-color: var(--primary);
    color: var(--primary);
    background: var(--bg-tertiary);
}

/* Hide icons based on active theme */
.theme-icon-light,
.theme-icon-dark,
.theme-icon-auto {
    display: none;
}

[data-theme="light"] .theme-icon-light { display: inline; }
[data-theme="dark"] .theme-icon-dark { display: inline; }
[data-theme="auto"] .theme-icon-auto { display: inline; }

@media (prefers-color-scheme: dark) {
    [data-theme="auto"] .theme-icon-auto { display: inline; }
}