/* =====================================================
   ResolveMeu – Design System
   Premium Light Theme com Gradientes
   ===================================================== */

/* ── Google Fonts ── */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&display=swap');

/* ── CSS Variables ── */
:root {
    /* Primary palette (Azul Escuro Logo) */
    --primary: #3b3e8e;
    --primary-light: #5256b8;
    --primary-dark: #2a2d6e;
    --primary-glow: rgba(59, 62, 142, 0.3);

    /* Accent (Ciano Logo) */
    --accent: #00aeef;
    --accent-light: #33beed;
    --accent-dark: #008fca;

    /* Danger / Warning */
    --danger: #ef4444;
    --warning: #f59e0b;
    --success: #10b981;
    --info: #3b82f6;

    /* Light Theme */
    --bg-dark: rgb(252, 243, 230);
    --bg-card: #ffffff;
    --bg-card-hover: #faf7f2;
    --bg-surface: #f9f5f0;
    --bg-input: #ffffff;

    /* Text */
    --text-primary: #1a1a2e;
    --text-secondary: #4b4b66;
    --text-muted: #8b8b9e;

    /* Borders */
    --border-color: rgba(59, 62, 142, 0.15);
    --border-glow: rgba(59, 62, 142, 0.4);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 30px rgba(59, 62, 142, 0.2);

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #3b3e8e, #5256b8);
    --gradient-accent: linear-gradient(135deg, #00aeef, #33beed);
    --gradient-hero: linear-gradient(135deg, rgb(252, 243, 230) 0%, #ffffff 50%, #f9f5f0 100%);
    --gradient-card: linear-gradient(145deg, #ffffff, #faf7f2);

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Transitions */
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Base ── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html { scroll-behavior: smooth; }

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }

/* ── Animated Background ── */
.bg-animated {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    z-index: -1;
    background: var(--bg-dark);
    overflow: hidden;
}

.bg-animated::before,
.bg-animated::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    opacity: 0.15;
    animation: float 20s infinite ease-in-out;
}

.bg-animated::before {
    width: 600px; height: 600px;
    background: var(--primary);
    top: -200px; right: -200px;
}

.bg-animated::after {
    width: 500px; height: 500px;
    background: var(--accent);
    bottom: -150px; left: -150px;
    animation-delay: -10s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(50px, -30px) scale(1.1); }
    50% { transform: translate(-30px, 60px) scale(0.9); }
    75% { transform: translate(40px, 30px) scale(1.05); }
}

/* ── Navbar ── */
.navbar-custom {
    background: rgba(252, 243, 230, 0.85) !important;
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    padding: 12px 0;
    transition: var(--transition);
}

.navbar-custom .navbar-brand {
    font-weight: 800;
    font-size: 1.5rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.navbar-custom .nav-link {
    color: var(--text-secondary) !important;
    font-weight: 500;
    padding: 8px 16px !important;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.navbar-custom .nav-link:hover,
.navbar-custom .nav-link.active {
    color: var(--text-primary) !important;
    background: rgba(108, 60, 224, 0.15);
}

/* ── Cards ── */
.card-glass {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
    overflow: hidden;
}

.card-glass:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
    transform: translateY(-4px);
}

.card-glass .card-body { padding: 24px; }

/* ── Stat Cards ── */
.stat-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 4px; height: 100%;
    background: var(--gradient-primary);
}

.stat-card:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-card .stat-label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

/* ── Buttons ── */
.btn-primary-gradient {
    background: var(--gradient-primary);
    color: #fff;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary-gradient::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: 0.5s;
}

.btn-primary-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(108, 60, 224, 0.4);
    color: #fff;
}

.btn-primary-gradient:hover::before { left: 100%; }

.btn-accent-gradient {
    background: var(--gradient-accent);
    color: #0f0f1a;
    border: none;
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition);
}

.btn-accent-gradient:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(6, 214, 160, 0.4);
    color: #0f0f1a;
}

.btn-outline-glow {
    background: transparent;
    color: var(--primary-light);
    border: 1px solid var(--primary-light);
    padding: 12px 28px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    transition: var(--transition);
}

.btn-outline-glow:hover {
    background: rgba(108, 60, 224, 0.15);
    border-color: var(--primary);
    color: var(--text-primary);
}

/* ── Forms ── */
.form-dark {
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    font-size: 0.95rem;
    transition: var(--transition);
}

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

.form-dark::placeholder { color: var(--text-muted); }

.form-label-glow {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.9rem;
    margin-bottom: 6px;
}

/* ── Hero ── */
.hero-section {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title .gradient-text {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1.2rem;
    max-width: 600px;
    margin-bottom: 36px;
}

/* ── Question Card ── */
.question-card {
    background: var(--gradient-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    margin-bottom: 24px;
}

.question-card .question-number {
    color: var(--primary-light);
    font-weight: 700;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.question-card .question-text {
    font-size: 1.05rem;
    line-height: 1.7;
    margin-bottom: 24px;
}

/* ── Alternatives ── */
.alternative-option {
    display: block;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 16px 20px;
    margin-bottom: 10px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.alternative-option:hover {
    border-color: var(--primary-light);
    background: rgba(108, 60, 224, 0.08);
}

.alternative-option.selected {
    border-color: var(--primary);
    background: rgba(108, 60, 224, 0.15);
}

.alternative-option.correct {
    border-color: var(--success);
    background: rgba(16, 185, 129, 0.15);
}

.alternative-option.wrong {
    border-color: var(--danger);
    background: rgba(239, 68, 68, 0.15);
}

.alternative-option .alt-letter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 32px; height: 32px;
    border-radius: 50%;
    background: var(--bg-input);
    color: var(--primary-light);
    font-weight: 700;
    margin-right: 14px;
    font-size: 0.85rem;
    transition: var(--transition);
}

.alternative-option.selected .alt-letter {
    background: var(--gradient-primary);
    color: #fff;
}

/* ── Badge ── */
.badge-nivel {
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
}

.badge-facil { background: rgba(16, 185, 129, 0.2); color: var(--success); }
.badge-medio { background: rgba(59, 130, 246, 0.2); color: var(--info); }
.badge-dificil { background: rgba(245, 158, 11, 0.2); color: var(--warning); }
.badge-muito_dificil { background: rgba(239, 68, 68, 0.2); color: var(--danger); }

/* ── Comment Box ── */
.comment-box {
    background: rgba(108, 60, 224, 0.08);
    border-left: 4px solid var(--primary);
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    padding: 20px 24px;
    margin-top: 20px;
}

.comment-box .comment-title {
    color: var(--primary-light);
    font-weight: 600;
    font-size: 0.9rem;
    margin-bottom: 8px;
}

/* ── Ranking Table ── */
.ranking-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 8px;
}

.ranking-table th {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 8px 16px;
    border: none;
}

.ranking-table td {
    background: var(--bg-surface);
    padding: 14px 16px;
    border: none;
    color: var(--text-primary);
}

.ranking-table tr td:first-child { border-radius: var(--radius-sm) 0 0 var(--radius-sm); }
.ranking-table tr td:last-child { border-radius: 0 var(--radius-sm) var(--radius-sm) 0; }

.ranking-table tr.is-you td {
    background: rgba(108, 60, 224, 0.15);
    border: 1px solid var(--border-glow);
}

.ranking-position {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px; height: 36px;
    border-radius: 50%;
    font-weight: 700;
}

.ranking-position.top-1 { background: linear-gradient(135deg, #FFD700, #FFA500); color: #1a1a2e; }
.ranking-position.top-2 { background: linear-gradient(135deg, #C0C0C0, #A0A0A0); color: #1a1a2e; }
.ranking-position.top-3 { background: linear-gradient(135deg, #CD7F32, #A0522D); color: #fff; }

/* ── Progress Bar ── */
.progress-bar-custom {
    height: 8px;
    border-radius: 4px;
    background: var(--bg-input);
    overflow: hidden;
}

.progress-bar-custom .progress-fill {
    height: 100%;
    border-radius: 4px;
    background: var(--gradient-primary);
    transition: width 0.5s ease-out;
}

/* ── Loading Spinner ── */
.spinner-glow {
    width: 48px; height: 48px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-light);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.loading-overlay {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: rgba(252, 243, 230, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    gap: 16px;
    z-index: 9999;
}

/* ── Toast ── */
.toast-custom {
    position: fixed;
    top: 20px; right: 20px;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    font-weight: 500;
    z-index: 10000;
    animation: slideIn 0.3s ease-out;
    max-width: 400px;
}

.toast-success { background: rgba(16, 185, 129, 0.95); color: #fff; }
.toast-error { background: rgba(239, 68, 68, 0.95); color: #fff; }
.toast-warning { background: rgba(245, 158, 11, 0.95); color: #1a1a2e; }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ── Comparison Bar ── */
.comparison-bar {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.comparison-bar .bar-label {
    width: 200px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
}

.comparison-bar .bar-track {
    flex: 1;
    height: 24px;
    border-radius: 12px;
    background: var(--bg-input);
    overflow: hidden;
    position: relative;
}

.comparison-bar .bar-fill {
    height: 100%;
    border-radius: 12px;
    transition: width 1s ease-out;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    font-size: 0.75rem;
    font-weight: 700;
    color: #fff;
}

/* ── Feature Cards ── */
.feature-card {
    text-align: center;
    padding: 32px 24px;
}

.feature-card .feature-icon {
    width: 64px; height: 64px;
    border-radius: 16px;
    background: rgba(108, 60, 224, 0.15);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    margin-bottom: 16px;
}

.feature-card h5 {
    font-weight: 700;
    margin-bottom: 8px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* ── Plan Cards ── */
.plan-card {
    position: relative;
    padding: 32px;
    text-align: center;
    overflow: visible; /* permite o badge ::before sair acima do card */
}

.plan-card.featured {
    border-color: var(--primary);
    box-shadow: var(--shadow-glow);
}

/* Badge dinâmico via data-badge (texto do admin) */
.plan-card.has-badge::before {
    content: attr(data-badge);
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #fff;
    padding: 4px 18px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    white-space: nowrap;
    letter-spacing: 0.5px;
}

/* Fallback: planos featured sem badge definido mostram 'Popular' */
.plan-card.featured:not(.has-badge)::before {
    content: 'Popular';
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--gradient-primary);
    color: #fff;
    padding: 4px 18px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.plan-price {
    font-size: 3rem;
    font-weight: 800;
}

.plan-price .currency { font-size: 1.2rem; vertical-align: super; }
.plan-price .period { font-size: 0.9rem; color: var(--text-secondary); font-weight: 400; }

/* ── Sidebar ── */
.sidebar-nav {
    background: var(--bg-card);
    border-right: 1px solid var(--border-color);
    min-height: 100vh;
    padding: 80px 0 24px;
    position: fixed;
    width: 260px;
    z-index: 100;
}

.sidebar-nav .nav-link {
    color: var(--text-secondary);
    padding: 12px 24px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
}

.sidebar-nav .nav-link:hover,
.sidebar-nav .nav-link.active {
    color: var(--text-primary);
    background: rgba(108, 60, 224, 0.1);
    border-right: 3px solid var(--primary);
}

.main-content-with-sidebar {
    margin-left: 260px;
    padding: 100px 30px 30px;
}

/* ── Timer ── */
.timer-display {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-secondary);
    font-variant-numeric: tabular-nums;
}

/* ── Utilities ── */
.text-gradient {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-accent { color: var(--accent) !important; }
.text-muted-custom { color: var(--text-muted) !important; }

.fade-in {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* ── Responsive ── */
@media (max-width: 768px) {
    .sidebar-nav { display: none; }
    .main-content-with-sidebar { margin-left: 0; padding: 80px 16px 16px; }
    .hero-title { font-size: 2rem; }
    .stat-card .stat-value { font-size: 1.5rem; }
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--bg-card); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary-dark); }

/* ── Dropzone (Upload PDF) ── */
.dropzone {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius-lg);
    padding: 48px 24px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: rgba(108, 60, 224, 0.03);
}

.dropzone:hover,
.dropzone-active {
    border-color: var(--primary-light);
    background: rgba(108, 60, 224, 0.08);
    box-shadow: 0 0 20px rgba(108, 60, 224, 0.1);
}

.dropzone-active {
    transform: scale(1.01);
}

/* ── Material Card ── */
.material-card {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    transition: var(--transition);
}

.material-card:hover {
    border-color: var(--border-glow);
    box-shadow: var(--shadow-sm);
}

.material-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(239, 68, 68, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: #ef4444;
    flex-shrink: 0;
}