/* Add this to the very top of style.css */
:root {
    --bg-body: #f4f7f9;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow: rgba(0,0,0,0.05);
}

/* DARK THEME VARIABLES */
[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #334155;
    --shadow: rgba(0,0,0,0.2);
    --primary: #3b82f6; /* Lighter blue for dark mode */
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    transition: background 0.3s, color 0.3s;
}

.card, .navbar, .settings-nav, .mockup-card, .preview-box, details {
    background: var(--bg-card) !important;
    border-color: var(--border) !important;
    color: var(--text-main);
}

/* Specific Dark Mode Overrides */
[data-theme="dark"] .navbar { background: rgba(30, 41, 59, 0.95) !important; border-bottom: 1px solid #334155; }
[data-theme="dark"] input, [data-theme="dark"] select, [data-theme="dark"] textarea {
    background: #0f172a; border-color: #334155; color: white;
}
[data-theme="dark"] .mockup-container { border-color: #334155; }
:root {
    --primary: #0056D2; /* Deep Medical Blue */
    --primary-dark: #003c96;
    --accent: #00D4BD; /* Teal/Cyan for actions */
    --bg-body: #F4F7F9;
    --bg-card: #FFFFFF;
    --text-main: #1A202C;
    --text-muted: #718096;
    --border: #E2E8F0;
    --success: #38A169;
    --danger: #E53E3E;
    --sidebar-width: 260px;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: var(--font);
    background-color: var(--bg-body);
    color: var(--text-main);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Utilities */
a { text-decoration: none; color: inherit; transition: 0.2s; }
.btn-primary {
    background: var(--primary); color: white; padding: 12px 24px;
    border-radius: 6px; font-weight: 600; display: inline-block; border: none; cursor: pointer;
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); }

.btn-outline {
    background: transparent; border: 2px solid var(--primary); color: var(--primary);
    padding: 10px 22px; border-radius: 6px; font-weight: 600; display: inline-block;
}
.btn-accent {
    background: var(--accent); color: #004238; padding: 12px 24px;
    border-radius: 6px; font-weight: 700; box-shadow: 0 4px 12px rgba(0, 212, 189, 0.3);
}

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

/* Navbar - SaaS Style */
.navbar { background: white; border-bottom: 1px solid var(--border); height: 70px; display: flex; align-items: center; position: sticky; top: 0; z-index: 100; }
.navbar .container { display: flex; justify-content: space-between; align-items: center; width: 100%; }
.logo { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.5px; color: var(--primary-dark); }
.nav-links a { margin-left: 25px; font-weight: 500; color: var(--text-muted); font-size: 0.95rem; }
.nav-links a:hover { color: var(--primary); }

/* Hero Section */
.hero {
    background: linear-gradient(135deg, var(--primary) 0%, #003c96 100%);
    color: white; padding: 80px 0 100px; text-align: center;
}
.hero h1 { font-size: 3.5rem; font-weight: 800; margin-bottom: 20px; line-height: 1.1; }
.hero p { font-size: 1.25rem; opacity: 0.9; max-width: 600px; margin: 0 auto 40px; }

/* Cards & Grids */
.grid-3 { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 30px; }

.card {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 12px; padding: 30px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02); transition: 0.3s ease;
    display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-5px); box-shadow: 0 12px 24px rgba(0,0,0,0.06); border-color: var(--primary); }

/* Auth Forms */
.auth-box {
    background: white; max-width: 420px; margin: 60px auto;
    padding: 40px; border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.05); border: 1px solid var(--border);
}
.form-control {
    width: 100%; padding: 12px; margin-bottom: 15px;
    border: 1px solid var(--border); border-radius: 6px; font-size: 1rem;
    background: #f8fafc;
}
.form-control:focus { border-color: var(--primary); outline: none; background: white; }

/* ADMIN PANEL LAYOUT */
.admin-layout { display: flex; min-height: 100vh; }
.admin-sidebar {
    width: var(--sidebar-width); background: #1e293b; color: white;
    flex-shrink: 0; padding: 20px; display: flex; flex-direction: column;
}
.admin-content { flex: 1; padding: 40px; background: #F1F5F9; }

.sidebar-brand { font-size: 1.5rem; font-weight: bold; margin-bottom: 40px; color: var(--accent); }
.sidebar-menu a {
    display: block; padding: 12px 15px; color: #cbd5e1;
    border-radius: 6px; margin-bottom: 5px; font-weight: 500;
}
.sidebar-menu a:hover, .sidebar-menu a.active { background: var(--primary); color: white; }

/* Tables */
.data-table { width: 100%; border-collapse: collapse; background: white; border-radius: 8px; overflow: hidden; }
.data-table th { background: #f1f5f9; padding: 15px; text-align: left; font-weight: 600; color: var(--text-muted); text-transform: uppercase; font-size: 0.8rem; }
.data-table td { padding: 15px; border-bottom: 1px solid var(--border); }

/* Packages UI */
.pkg-badge {
    display: inline-block; padding: 4px 8px; border-radius: 4px;
    font-size: 0.75rem; font-weight: bold; text-transform: uppercase; letter-spacing: 0.5px;
}
.badge-trial { background: #ebf8ff; color: #3182ce; }
.badge-paid { background: #f0fff4; color: #38a169; }

/* Mobile */
@media (max-width: 768px) {
    .hero h1 { font-size: 2.5rem; }
    .admin-layout { flex-direction: column; }
    .admin-sidebar { width: 100%; }
}
/* --- EXAM INTERFACE SPECIFIC --- */
.exam-wrapper {
    display: grid;
    grid-template-columns: 1fr 320px; /* Question Area | Sidebar */
    height: 100vh;
    background: #f4f7f9;
    overflow: hidden;
}

.exam-main {
    padding: 40px;
    overflow-y: auto;
    background: #ffffff;
    border-right: 1px solid var(--border);
}

.exam-sidebar {
    background: #f8fafc;
    padding: 20px;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--border);
    overflow-y: auto;
}

/* Question Text Typography */
.vignette {
    font-family: 'Inter', sans-serif;
    font-size: 1.15rem;
    line-height: 1.8;
    color: #2d3748;
    margin-bottom: 30px;
}

/* Options Styling */
.exam-option {
    display: flex;
    padding: 15px 20px;
    margin-bottom: 12px;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    background: white;
    color: #4a5568;
}

.exam-option:hover {
    border-color: var(--primary);
    background: #ebf8ff;
}

.exam-option.selected {
    border-color: var(--primary);
    background: #ebf8ff;
    color: var(--primary-dark);
    box-shadow: 0 0 0 3px rgba(0, 86, 210, 0.1);
}

.exam-option.correct {
    border-color: var(--success);
    background: #f0fff4;
    color: #22543d;
}

.exam-option.wrong {
    border-color: var(--danger);
    background: #fff5f5;
    color: #742a2a;
}

/* Navigation Grid (1, 2, 3...) */
.nav-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 8px;
    margin-top: 20px;
}

.nav-btn {
    height: 40px;
    border-radius: 6px;
    background: white;
    border: 1px solid #cbd5e1;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    cursor: pointer;
    color: #64748b;
}

.nav-btn.active { background: var(--primary); color: white; border-color: var(--primary); }
.nav-btn.answered { background: #e2e8f0; color: #1e293b; border-color: #cbd5e1; font-weight: 600; }
.nav-btn.flagged { border-color: #ecc94b; background: #fffff0; color: #b7791f; }

/* Setup Page Specifics */
.setup-card {
    border: 2px solid transparent;
    transition: 0.2s;
    cursor: pointer;
}
.setup-card:hover { transform: translateY(-3px); }
.setup-card.selected {
    border-color: var(--primary);
    background: #ebf8ff;
}

.study-guide-content h2 { font-size: 1.5rem; color: #1e293b; margin-top: 30px; margin-bottom: 15px; border-bottom: 1px solid #e2e8f0; padding-bottom: 10px; }
.study-guide-content p { line-height: 1.8; color: #475569; margin-bottom: 20px; font-size: 1.05rem; }
.study-guide-content ul { margin-bottom: 20px; padding-left: 20px; color: #475569; }
.study-guide-content li { margin-bottom: 10px; }
.study-guide-content .alert-box { background: #fffbeb; border-left: 4px solid #f59e0b; padding: 15px; margin: 20px 0; color: #92400e; }

/* Add this to the very top of style.css */
:root {
    --bg-body: #f4f7f9;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --shadow: rgba(0,0,0,0.05);
}

/* DARK THEME VARIABLES */
[data-theme="dark"] {
    --bg-body: #0f172a;
    --bg-card: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border: #334155;
    --shadow: rgba(0,0,0,0.2);
    --primary: #3b82f6; /* Lighter blue for dark mode */
}

body {
    background-color: var(--bg-body);
    color: var(--text-main);
    transition: background 0.3s, color 0.3s;
}

.card, .navbar, .settings-nav, .mockup-card, .preview-box, details {
    background: var(--bg-card) !important;
    border-color: var(--border) !important;
    color: var(--text-main);
}

/* Specific Dark Mode Overrides */
[data-theme="dark"] .navbar { background: rgba(30, 41, 59, 0.95) !important; border-bottom: 1px solid #334155; }
[data-theme="dark"] input, [data-theme="dark"] select, [data-theme="dark"] textarea {
    background: #0f172a; border-color: #334155; color: white;
}
[data-theme="dark"] .mockup-container { border-color: #334155; }