/* ==========================================================================
   JKScore — Finance Learning & Quizzes
   Professional Design System
   ========================================================================== */

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

/* Design Tokens */
:root {
    /* Colors */
    --navy-900: #0b1425;
    --navy-800: #0f172a;
    --navy-700: #1e293b;
    --navy-600: #334155;

    --green-600: #16a34a;
    --green-500: #22c55e;
    --green-400: #4ade80;
    --green-50:  #f0fdf4;

    --gold-600: #ca8a04;
    --gold-500: #eab308;
    --gold-400: #facc15;
    --gold-50:  #fefce8;

    --red-600: #dc2626;
    --red-500: #ef4444;
    --red-50:  #fef2f2;

    --gray-900: #0f172a;
    --gray-800: #1e293b;
    --gray-700: #334155;
    --gray-600: #475569;
    --gray-500: #64748b;
    --gray-400: #94a3b8;
    --gray-300: #cbd5e1;
    --gray-200: #e2e8f0;
    --gray-100: #f1f5f9;
    --gray-50:  #f8fafc;

    --bg-body:    #f6f8fc;
    --bg-card:    #ffffff;
    --border:     #e2e8f0;

    /* Shadows */
    --shadow-xs: 0 1px 2px rgba(15, 23, 42, 0.05);
    --shadow-sm: 0 1px 3px rgba(15, 23, 42, 0.08), 0 1px 2px rgba(15, 23, 42, 0.04);
    --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(15, 23, 42, 0.1), 0 8px 10px -6px rgba(15, 23, 42, 0.06);

    /* Radius */
    --radius-sm: 6px;
    --radius:    10px;
    --radius-lg: 16px;
    --radius-xl: 24px;

    /* Spacing rhythm */
    --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
    --sp-5: 20px; --sp-6: 24px; --sp-8: 32px; --sp-10: 40px;
    --sp-12: 48px; --sp-16: 64px; --sp-20: 80px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
}

/* Reset */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    font-family: var(--font-sans);
    font-size: 16px;
    line-height: 1.65;
    color: var(--gray-800);
    background: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}
img { max-width: 100%; display: block; }
a { color: var(--green-600); text-decoration: none; transition: color 0.15s ease; }
a:hover { color: var(--green-500); }
button { font-family: inherit; cursor: pointer; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }
.container-narrow { max-width: 850px; margin: 0 auto; padding: 0 20px; }

/* ==================== HEADER ==================== */
.site-header {
    background: rgba(255,255,255,0.95);
    backdrop-filter: saturate(180%) blur(14px);
    -webkit-backdrop-filter: saturate(180%) blur(14px);
    color: var(--navy-800);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 100;
}
.header-inner {
    display: flex; align-items: center; justify-content: space-between;
    padding: 14px 20px; flex-wrap: wrap;
    max-width: 1200px; margin: 0 auto;
}
.logo {
    color: var(--navy-800); font-family: var(--font-display);
    font-size: 22px; font-weight: 800; letter-spacing: -0.5px;
    display: inline-flex; align-items: center; gap: 8px;
}
.logo-mark {
    display: inline-flex; align-items: center; justify-content: center;
    width: 34px; height: 34px; border-radius: 8px;
    background: linear-gradient(135deg, var(--green-500), var(--navy-800));
    color: #fff; font-weight: 800; font-size: 15px;
}
.logo-jk { color: var(--green-600); }
.logo-score { color: var(--navy-800); }
.main-nav ul { list-style: none; display: flex; gap: 4px; align-items: center; flex-wrap: wrap; }
.main-nav a {
    color: var(--gray-700); font-weight: 500; font-size: 15px;
    padding: 8px 12px; border-radius: 8px; transition: all 0.15s;
}
.main-nav a:hover { color: var(--navy-800); background: var(--gray-100); }
.nav-quiz {
    background: var(--green-500) !important;
    color: #fff !important;
    padding: 8px 16px !important;
    font-weight: 600 !important;
    box-shadow: 0 2px 8px rgba(34,197,94,0.35);
}
.nav-quiz:hover { background: var(--green-600) !important; }
.menu-toggle {
    display: none; background: none; border: none;
    font-size: 24px; color: var(--navy-800);
}

/* ==================== MAIN ==================== */
.site-main { padding: var(--sp-8) 0 var(--sp-16); min-height: 60vh; }

/* ==================== HERO ==================== */
.hero-pro {
    background: linear-gradient(135deg, var(--navy-900), var(--navy-800) 50%, #093326 100%);
    color: #fff;
    border-radius: var(--radius-xl);
    padding: var(--sp-16) var(--sp-10);
    position: relative;
    overflow: hidden;
    margin-bottom: var(--sp-12);
}
.hero-pro::before {
    content: ''; position: absolute; inset: 0;
    background:
      radial-gradient(circle at 15% 20%, rgba(34,197,94,0.18), transparent 40%),
      radial-gradient(circle at 90% 80%, rgba(234,179,8,0.12), transparent 40%);
    pointer-events: none;
}
.hero-content {
    position: relative; z-index: 1;
    display: grid; grid-template-columns: 1.3fr 1fr;
    gap: var(--sp-12); align-items: center;
}
.hero-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: 999px;
    background: rgba(34,197,94,0.15); border: 1px solid rgba(34,197,94,0.35);
    color: var(--green-400); font-size: 13px; font-weight: 600;
    margin-bottom: var(--sp-5);
}
.hero-badge::before {
    content: ''; width: 8px; height: 8px; border-radius: 50%; background: var(--green-500);
    box-shadow: 0 0 0 4px rgba(34,197,94,0.25);
    animation: pulse 2s infinite;
}
.hero-title {
    font-family: var(--font-display); font-size: clamp(2.2rem, 4.5vw, 3.5rem);
    line-height: 1.05; margin-bottom: var(--sp-5); font-weight: 800;
    letter-spacing: -1px;
}
.hero-title .accent { color: var(--green-400); }
.hero-sub {
    font-size: 1.1rem; opacity: 0.85; margin-bottom: var(--sp-6); max-width: 560px;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

.hero-stats {
    display: grid; grid-template-columns: 1fr 1fr; gap: var(--sp-4);
    background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
    padding: var(--sp-6); border-radius: var(--radius-lg);
    backdrop-filter: blur(10px);
}
.stat-item { text-align: center; padding: var(--sp-3); }
.stat-value {
    font-family: var(--font-display); font-size: 2.2rem; font-weight: 800;
    color: var(--green-400); line-height: 1;
}
.stat-label { font-size: 13px; opacity: 0.75; margin-top: 6px; }

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-flex; align-items: center; justify-content: center;
    gap: 8px; padding: 12px 22px; border-radius: 10px;
    font-weight: 600; font-size: 15px; border: 1px solid transparent;
    transition: all 0.15s; cursor: pointer; text-decoration: none;
    line-height: 1;
}
.btn-primary { background: var(--green-500); color: #fff; box-shadow: 0 4px 12px rgba(34,197,94,0.35); }
.btn-primary:hover { background: var(--green-600); transform: translateY(-1px); color: #fff; box-shadow: 0 6px 18px rgba(34,197,94,0.45); }
.btn-secondary { background: rgba(255,255,255,0.1); color: #fff; border-color: rgba(255,255,255,0.25); }
.btn-secondary:hover { background: rgba(255,255,255,0.18); color: #fff; }
.btn-outline { background: transparent; color: var(--navy-800); border-color: var(--border); }
.btn-outline:hover { background: var(--gray-100); color: var(--navy-800); }
.btn-lg { padding: 14px 28px; font-size: 16px; }

/* ==================== FEATURE STRIP ==================== */
.feature-strip {
    display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--sp-5);
    margin-bottom: var(--sp-16);
}
.feature-item {
    background: var(--bg-card); padding: var(--sp-6); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm); border: 1px solid var(--border);
}
.feature-icon {
    width: 44px; height: 44px; border-radius: 10px;
    background: var(--green-50); color: var(--green-600);
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 20px; margin-bottom: var(--sp-3);
}
.feature-item h4 { font-family: var(--font-display); font-size: 16px; color: var(--navy-800); margin-bottom: 4px; }
.feature-item p { font-size: 14px; color: var(--gray-600); }

/* ==================== SECTIONS ==================== */
.section { margin-bottom: var(--sp-16); }
.section-head {
    display: flex; align-items: end; justify-content: space-between;
    margin-bottom: var(--sp-8); flex-wrap: wrap; gap: var(--sp-4);
}
.section-title {
    font-family: var(--font-display); font-size: clamp(1.6rem, 3vw, 2rem);
    color: var(--navy-800); letter-spacing: -0.5px; font-weight: 700;
    line-height: 1.2;
}
.section-title .accent { color: var(--green-500); }
.section-sub { color: var(--gray-600); font-size: 15px; margin-top: 4px; }
.section-link { color: var(--green-600); font-weight: 600; font-size: 14px; }

/* ==================== ARTICLE CARDS ==================== */
.article-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--sp-6);
}
.article-card {
    background: var(--bg-card); border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm); border: 1px solid var(--border);
    overflow: hidden; transition: transform 0.2s, box-shadow 0.2s;
    display: flex; flex-direction: column;
    position: relative;
}
/* Stretched-link — whole card is clickable via title anchor */
.article-card .card-title a::after,
.featured-card .card-title a::after,
.side-body h4 a::after {
    content: '';
    position: absolute;
    inset: 0;
    z-index: 1;
    background: transparent;
}
/* Keep other elements above the stretched overlay if needed */
.article-card .card-body > *:not(.card-title),
.featured-card .card-body > *:not(.card-title),
.side-body > *:not(h4) {
    position: relative;
    z-index: 2;
}
.article-card:hover {
    transform: translateY(-4px); box-shadow: var(--shadow-lg);
    border-color: transparent;
}
.card-image {
    display: block; height: 200px; overflow: hidden;
    background: var(--gray-100); position: relative;
    cursor: pointer;
}
.card-image img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 0.5s ease;
}
.article-card:hover .card-image img { transform: scale(1.06); }
.card-body { padding: var(--sp-6); flex: 1; display: flex; flex-direction: column; }
.card-category {
    display: inline-flex; align-items: center; padding: 4px 10px;
    background: var(--green-50); color: var(--green-600);
    border-radius: 999px; font-size: 11px; font-weight: 700;
    letter-spacing: 0.6px; text-transform: uppercase;
    align-self: flex-start; margin-bottom: var(--sp-3);
}
.card-title {
    font-family: var(--font-display); font-size: 1.15rem; font-weight: 700;
    line-height: 1.35; margin-bottom: var(--sp-3);
}
.card-title a { color: var(--navy-800); }
.card-title a:hover { color: var(--green-600); }
.card-excerpt { color: var(--gray-600); font-size: 14.5px; margin-bottom: var(--sp-4); flex: 1; }
.card-meta {
    font-size: 13px; color: var(--gray-500);
    display: flex; align-items: center; gap: 12px;
    padding-top: var(--sp-4); border-top: 1px solid var(--border);
}
.card-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gray-400); }

/* Featured Layout */
.featured-layout {
    display: grid; grid-template-columns: 1.5fr 1fr; gap: var(--sp-6);
    align-items: stretch;
}

/* Featured Big Card */
.featured-card {
    background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden;
    box-shadow: var(--shadow-sm); border: 1px solid var(--border);
    display: flex; flex-direction: column;
    transition: transform 0.2s, box-shadow 0.2s;
    position: relative;
}
.featured-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.featured-card .card-image {
    display: block; height: 300px; overflow: hidden; position: relative;
}
.featured-card .card-image img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.featured-card:hover .card-image img { transform: scale(1.05); }
.featured-tag {
    position: absolute; top: 16px; left: 16px; z-index: 2;
    background: var(--gold-500); color: var(--navy-800);
    padding: 5px 12px; border-radius: 999px;
    font-size: 11px; font-weight: 700; letter-spacing: 0.6px;
    text-transform: uppercase;
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}
.featured-card .card-body { padding: var(--sp-6) var(--sp-8) var(--sp-8); }
.featured-card .card-title {
    font-size: 1.6rem; margin-bottom: var(--sp-3);
}
.featured-card .card-excerpt { font-size: 15px; }
.avatar-mini {
    display: inline-flex; align-items: center; justify-content: center;
    width: 24px; height: 24px; border-radius: 50%;
    background: linear-gradient(135deg, var(--green-500), var(--navy-800));
    color: #fff; font-weight: 700; font-size: 10px;
}

/* Featured Side List */
.featured-side {
    display: flex; flex-direction: column; gap: var(--sp-4);
    height: 100%;
}
.side-item {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: var(--sp-4);
    display: flex; gap: var(--sp-4); align-items: stretch;
    transition: transform 0.15s, box-shadow 0.15s, border-color 0.15s;
    flex: 1;
    position: relative;
}
.side-item:hover {
    transform: translateY(-2px); box-shadow: var(--shadow-md);
    border-color: var(--green-500);
}
.side-thumb {
    display: block;
    width: 120px; height: auto; flex-shrink: 0;
    border-radius: var(--radius-sm); overflow: hidden;
    background: var(--gray-100); position: relative;
    cursor: pointer;
}
.side-thumb img {
    width: 100%; height: 100%; object-fit: cover;
    position: absolute; inset: 0;
    transition: transform 0.4s ease;
}
.side-item:hover .side-thumb img { transform: scale(1.06); }
.side-body {
    flex: 1; min-width: 0;
    display: flex; flex-direction: column; justify-content: center;
    gap: 6px;
}
.side-body .card-category {
    font-size: 10px; padding: 2px 8px; margin-bottom: 4px;
}
.side-body h4 {
    font-family: var(--font-display); font-size: 15px; line-height: 1.4;
    margin: 0; font-weight: 700;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden;
}
.side-body h4 a { color: var(--navy-800); }
.side-body h4 a:hover { color: var(--green-600); }
.side-meta {
    font-size: 12.5px; color: var(--gray-500);
    display: inline-flex; align-items: center; gap: 8px; margin-top: 2px;
}
.side-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--gray-400); display: inline-block; }

/* ==================== QUIZ CARDS ==================== */
.quiz-grid {
    display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--sp-5);
}
.quiz-card {
    background: var(--bg-card); border-radius: var(--radius-lg);
    padding: var(--sp-6); text-decoration: none; color: var(--gray-800);
    box-shadow: var(--shadow-sm); border: 1px solid var(--border);
    display: flex; flex-direction: column; position: relative; overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}
.quiz-card::before {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 4px;
    background: linear-gradient(90deg, var(--green-500), var(--gold-500));
    transform: scaleX(0); transform-origin: left; transition: transform 0.3s;
}
.quiz-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); color: var(--gray-800); }
.quiz-card:hover::before { transform: scaleX(1); }
.quiz-icon {
    width: 56px; height: 56px; border-radius: 14px;
    background: linear-gradient(135deg, var(--green-50), var(--gold-50));
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 28px; margin-bottom: var(--sp-4);
}
.quiz-card h3 {
    font-family: var(--font-display); color: var(--navy-800);
    font-size: 1.15rem; font-weight: 700; margin-bottom: var(--sp-2);
}
.quiz-card p { color: var(--gray-600); font-size: 14px; margin-bottom: var(--sp-5); flex: 1; }
.quiz-meta {
    display: flex; justify-content: space-between; align-items: center;
    padding-top: var(--sp-4); border-top: 1px solid var(--border);
    font-size: 12.5px; color: var(--gray-500); margin-bottom: var(--sp-3);
}
.quiz-meta span { display: inline-flex; align-items: center; gap: 5px; }
.quiz-cta {
    color: var(--green-600); font-weight: 600; font-size: 14px;
    display: inline-flex; align-items: center; gap: 4px;
}

/* ==================== QUIZ PLAY ==================== */
.quiz-play { max-width: 780px; margin: 0 auto; }
.quiz-crumbs { font-size: 13px; color: var(--gray-500); margin-bottom: var(--sp-4); }
.quiz-crumbs a { color: var(--gray-600); }

.quiz-screen {
    background: var(--bg-card); border-radius: var(--radius-lg);
    padding: var(--sp-10); box-shadow: var(--shadow-md);
    border: 1px solid var(--border);
}
.hidden { display: none !important; }

.quiz-intro-card { text-align: center; }
.intro-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px; border-radius: 999px;
    background: var(--green-50); color: var(--green-600);
    font-size: 13px; font-weight: 600; margin-bottom: var(--sp-4);
}
.intro-title {
    font-family: var(--font-display); font-size: 2rem; font-weight: 800;
    color: var(--navy-800); margin-bottom: var(--sp-3); letter-spacing: -0.5px;
}
.intro-sub { color: var(--gray-600); margin-bottom: var(--sp-8); max-width: 500px; margin-left: auto; margin-right: auto; }
.intro-features {
    display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: var(--sp-4); margin-bottom: var(--sp-8); text-align: center;
}
.intro-feature {
    padding: var(--sp-5); background: var(--gray-50);
    border-radius: var(--radius); border: 1px solid var(--border);
}
.intro-feature .num {
    font-family: var(--font-display); font-size: 1.6rem; font-weight: 800;
    color: var(--green-600); line-height: 1;
}
.intro-feature .lbl { font-size: 12.5px; color: var(--gray-600); margin-top: 4px; letter-spacing: 0.3px; }

/* Quiz Playing */
.quiz-topbar {
    display: flex; justify-content: space-between; align-items: center;
    margin-bottom: var(--sp-6); flex-wrap: wrap; gap: var(--sp-3);
}
.q-progress { font-size: 14px; font-weight: 600; color: var(--gray-600); }
.q-progress strong { color: var(--navy-800); font-weight: 700; }

.q-timer-ring {
    position: relative; width: 60px; height: 60px;
}
.q-timer-ring svg { transform: rotate(-90deg); }
.q-timer-ring circle {
    fill: none; stroke-width: 5;
}
.q-timer-ring .bg-ring { stroke: var(--gray-200); }
.q-timer-ring .fg-ring {
    stroke: var(--green-500); stroke-linecap: round;
    transition: stroke-dashoffset 1s linear, stroke 0.3s;
}
.q-timer-ring .fg-ring.warn { stroke: var(--red-500); }
.q-timer-num {
    position: absolute; inset: 0; display: flex; align-items: center;
    justify-content: center; font-weight: 700; font-size: 18px;
    color: var(--navy-800);
}

.q-progress-bar {
    height: 4px; background: var(--gray-200); border-radius: 4px;
    overflow: hidden; margin-bottom: var(--sp-6);
}
.q-progress-bar-fill {
    height: 100%; background: linear-gradient(90deg, var(--green-500), var(--green-400));
    transition: width 0.3s ease; border-radius: 4px;
}

.q-text {
    font-family: var(--font-display); font-size: 1.35rem; font-weight: 700;
    color: var(--navy-800); line-height: 1.4; margin-bottom: var(--sp-6);
}
.q-options { display: flex; flex-direction: column; gap: 10px; margin-bottom: var(--sp-5); }
.q-option {
    background: var(--gray-50); border: 2px solid var(--gray-200);
    padding: 14px 18px; border-radius: 10px; text-align: left;
    cursor: pointer; font-size: 15px; color: var(--navy-800);
    transition: all 0.15s; font-weight: 500;
    display: flex; align-items: center; gap: var(--sp-3);
}
.q-option:hover:not(:disabled) {
    background: #fff; border-color: var(--green-500); color: var(--navy-800);
    transform: translateX(4px);
}
.q-option:disabled { cursor: not-allowed; opacity: 0.9; }
.q-option .opt-letter {
    width: 28px; height: 28px; border-radius: 6px;
    background: var(--gray-200); color: var(--gray-700);
    display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 13px; flex-shrink: 0;
    transition: all 0.15s;
}
.q-option:hover:not(:disabled) .opt-letter { background: var(--green-500); color: #fff; }
.q-option.correct {
    background: var(--green-50); border-color: var(--green-500); color: var(--navy-800);
}
.q-option.correct .opt-letter { background: var(--green-500); color: #fff; }
.q-option.wrong {
    background: var(--red-50); border-color: var(--red-500); color: var(--navy-800);
}
.q-option.wrong .opt-letter { background: var(--red-500); color: #fff; }

.q-feedback {
    padding: var(--sp-4) var(--sp-5); border-radius: var(--radius);
    margin-top: var(--sp-3); margin-bottom: var(--sp-3);
    font-size: 14.5px; line-height: 1.55;
}
.q-feedback.correct { background: var(--green-50); color: #065f46; border-left: 4px solid var(--green-500); }
.q-feedback.wrong { background: var(--red-50); color: #7f1d1d; border-left: 4px solid var(--red-500); }
.q-feedback strong { font-weight: 700; }

/* Result screen */
.result-header { text-align: center; padding-bottom: var(--sp-6); }
.result-title {
    font-family: var(--font-display); font-size: 2rem; font-weight: 800;
    color: var(--navy-800); margin-bottom: var(--sp-3); letter-spacing: -0.5px;
}
.score-donut {
    position: relative; width: 200px; height: 200px; margin: var(--sp-4) auto var(--sp-5);
}
.score-donut svg { transform: rotate(-90deg); }
.score-donut circle {
    fill: none; stroke-width: 12;
}
.score-donut .bg { stroke: var(--gray-200); }
.score-donut .fg {
    stroke: var(--green-500); stroke-linecap: round;
    transition: stroke-dashoffset 1.5s cubic-bezier(0.25, 0.1, 0.25, 1);
}
.score-inner {
    position: absolute; inset: 0; display: flex; flex-direction: column;
    align-items: center; justify-content: center;
}
.score-num {
    font-family: var(--font-display); font-size: 3.2rem; font-weight: 800;
    color: var(--navy-800); line-height: 1;
}
.score-total { font-size: 14px; color: var(--gray-500); margin-top: 4px; }
.score-percent {
    font-size: 15px; color: var(--green-600); font-weight: 700; margin-top: 6px;
}
.score-message {
    font-size: 16px; color: var(--gray-700); max-width: 520px;
    margin: 0 auto var(--sp-6);
}
.result-actions { display: flex; justify-content: center; align-items: center; gap: 10px; flex-wrap: wrap; }

.review-list { display: flex; flex-direction: column; gap: var(--sp-4); margin-top: var(--sp-8); }
.review-item {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: var(--sp-5);
    border-left: 4px solid var(--green-500);
}
.review-item.bad { border-left-color: var(--red-500); }
.review-q { font-weight: 700; color: var(--navy-800); margin-bottom: var(--sp-3); }
.review-q .qnum {
    display: inline-block; background: var(--gray-100); color: var(--gray-700);
    padding: 2px 8px; border-radius: 4px; font-size: 12px;
    margin-right: 8px; font-weight: 700;
}
.review-a { font-size: 14px; color: var(--gray-700); margin-bottom: 4px; }
.review-a .ok { color: var(--green-600); font-weight: 600; }
.review-a .bad { color: var(--red-600); font-weight: 600; }
.review-exp {
    margin-top: var(--sp-3); padding: var(--sp-3);
    background: var(--gray-50); border-radius: 6px;
    font-size: 13.5px; color: var(--gray-600); font-style: italic;
}

/* ==================== ARTICLE PAGE ==================== */
.article-hero {
    background: var(--bg-card); border-radius: var(--radius-lg); overflow: hidden;
    margin-bottom: var(--sp-8); box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
}
.article-hero-image { height: 340px; overflow: hidden; background: var(--gray-100); }
.article-hero-image img { width: 100%; height: 100%; object-fit: cover; }
.article-hero-body { padding: var(--sp-8); }
.article-hero-body .card-category { margin-bottom: var(--sp-4); }
.article-hero-body h1 {
    font-family: var(--font-display); font-size: clamp(1.8rem, 3.5vw, 2.4rem);
    color: var(--navy-800); line-height: 1.2; letter-spacing: -0.5px;
    margin-bottom: var(--sp-4); font-weight: 800;
}
.article-hero-body .article-meta {
    display: flex; align-items: center; gap: var(--sp-3); flex-wrap: wrap;
    font-size: 14px; color: var(--gray-500);
}
.avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: linear-gradient(135deg, var(--green-500), var(--navy-800));
    color: #fff; display: inline-flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 13px;
}

.article-layout {
    display: grid; grid-template-columns: 1fr 260px;
    gap: var(--sp-10);
}
.article-body {
    background: var(--bg-card); border-radius: var(--radius-lg);
    padding: var(--sp-10); box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    font-size: 16.5px; line-height: 1.8; color: var(--gray-800);
}
.article-body h2 {
    font-family: var(--font-display); font-size: 1.5rem; color: var(--navy-800);
    margin: var(--sp-8) 0 var(--sp-4); font-weight: 700; letter-spacing: -0.3px;
}
.article-body h2:first-child { margin-top: 0; }
.article-body h3 {
    font-family: var(--font-display); font-size: 1.2rem; color: var(--navy-700);
    margin: var(--sp-6) 0 var(--sp-3); font-weight: 700;
}
.article-body p { margin-bottom: var(--sp-4); }
.article-body ul, .article-body ol { margin: 0 0 var(--sp-4) var(--sp-5); }
.article-body li { margin-bottom: 6px; }
.article-body strong { color: var(--navy-800); font-weight: 700; }
.article-body blockquote {
    background: var(--gold-50); border-left: 4px solid var(--gold-500);
    padding: var(--sp-4) var(--sp-6); border-radius: 0 var(--radius) var(--radius) 0;
    margin: var(--sp-5) 0; font-style: italic; color: var(--gray-700);
}
.article-body table {
    width: 100%; border-collapse: collapse; margin: var(--sp-5) 0;
    font-size: 15px; box-shadow: var(--shadow-xs);
    border-radius: var(--radius-sm); overflow: hidden;
}
.article-body th {
    background: var(--navy-800); color: #fff; padding: 12px 15px;
    text-align: left; font-weight: 600; font-size: 14px;
}
.article-body td { padding: 10px 15px; border-bottom: 1px solid var(--border); }
.article-body tr:nth-child(even) td { background: var(--gray-50); }
.article-body tr:last-child td { border-bottom: none; }

.article-sidebar { align-self: start; position: sticky; top: 90px; }
.toc-box {
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: var(--radius); padding: var(--sp-5); margin-bottom: var(--sp-5);
    box-shadow: var(--shadow-sm);
}
.toc-box h4 {
    font-family: var(--font-display); font-size: 13px; font-weight: 700;
    color: var(--gray-500); text-transform: uppercase; letter-spacing: 1px;
    margin-bottom: var(--sp-3);
}
.toc-box ol { list-style: none; padding: 0; counter-reset: item; }
.toc-box li { counter-increment: item; margin-bottom: 8px; padding-left: 22px; position: relative; }
.toc-box li::before {
    content: counter(item) "."; position: absolute; left: 0;
    color: var(--green-600); font-weight: 700; font-size: 13px;
}
.toc-box a { color: var(--gray-700); font-size: 14px; line-height: 1.4; }
.toc-box a:hover { color: var(--green-600); }

.quiz-promo {
    background: linear-gradient(135deg, var(--navy-800), var(--green-600));
    color: #fff; padding: var(--sp-6); border-radius: var(--radius);
    box-shadow: var(--shadow-md);
}
.quiz-promo h4 { font-family: var(--font-display); font-size: 17px; margin-bottom: 6px; }
.quiz-promo p { font-size: 13.5px; opacity: 0.9; margin-bottom: var(--sp-4); }
.quiz-promo .btn { background: #fff; color: var(--navy-800); padding: 10px 18px; font-size: 14px; }
.quiz-promo .btn:hover { background: var(--gold-500); color: var(--navy-800); }

.related-section {
    max-width: 850px; margin: var(--sp-12) auto 0;
}

/* ==================== STATIC PAGES ==================== */
.page-content {
    background: var(--bg-card); padding: var(--sp-10);
    border-radius: var(--radius-lg); box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    max-width: 850px; margin: 0 auto;
    font-size: 16px; line-height: 1.75;
}
.page-content h1 {
    font-family: var(--font-display); color: var(--navy-800); font-size: 2rem;
    margin-bottom: var(--sp-5); letter-spacing: -0.5px; font-weight: 800;
}
.page-content h2 {
    font-family: var(--font-display); color: var(--navy-800); font-size: 1.35rem;
    margin: var(--sp-6) 0 var(--sp-3); font-weight: 700;
}
.page-content p { margin-bottom: var(--sp-4); color: var(--gray-700); }
.page-content ul { margin: var(--sp-3) 0 var(--sp-4) var(--sp-5); }
.page-content li { margin-bottom: 6px; }

/* Contact form */
.contact-form { max-width: 600px; }
.contact-form label {
    display: block; margin: var(--sp-4) 0 6px;
    font-weight: 600; font-size: 14px; color: var(--navy-800);
}
.contact-form input, .contact-form textarea {
    width: 100%; padding: 11px 14px; border: 1px solid var(--gray-300);
    border-radius: 8px; font-family: inherit; font-size: 15px;
    transition: border-color 0.15s, box-shadow 0.15s;
    background: #fff;
}
.contact-form input:focus, .contact-form textarea:focus {
    outline: none; border-color: var(--green-500);
    box-shadow: 0 0 0 3px rgba(34,197,94,0.15);
}
.contact-form textarea { min-height: 140px; resize: vertical; }
.contact-form button {
    margin-top: var(--sp-5); background: var(--green-500); color: #fff;
    border: none; padding: 12px 28px; border-radius: 8px;
    cursor: pointer; font-size: 15px; font-weight: 600;
    transition: background 0.15s;
}
.contact-form button:hover { background: var(--green-600); }

/* ==================== FOOTER ==================== */
.site-footer {
    background: var(--navy-900); color: var(--gray-400); margin-top: var(--sp-16);
}
.footer-cta {
    background: linear-gradient(135deg, var(--green-600), var(--navy-800));
    padding: var(--sp-16) 0; text-align: center; color: #fff;
}
.footer-cta h3 {
    font-family: var(--font-display); font-size: 2rem; font-weight: 800;
    margin-bottom: var(--sp-3); letter-spacing: -0.5px;
}
.footer-cta p { max-width: 550px; margin: 0 auto var(--sp-5); opacity: 0.9; }
.footer-inner {
    display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: var(--sp-8);
    padding: var(--sp-12) 20px var(--sp-8); max-width: 1200px; margin: 0 auto;
}
.footer-col h3 {
    color: #fff; font-family: var(--font-display); font-size: 15px;
    font-weight: 700; margin-bottom: var(--sp-4);
    text-transform: uppercase; letter-spacing: 0.8px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 8px; }
.footer-col a { color: var(--gray-400); font-size: 14px; }
.footer-col a:hover { color: var(--gold-400); }
.footer-col p { font-size: 14px; line-height: 1.7; }
.footer-col .logo { color: #fff; margin-bottom: var(--sp-3); }
.footer-col .logo-score { color: #fff; }
.footer-bottom {
    background: var(--navy-900); padding: var(--sp-4) 0;
    text-align: center; font-size: 13px; color: var(--gray-500);
    border-top: 1px solid rgba(255,255,255,0.05);
}

/* ==================== PAGINATION ==================== */
.pagination {
    display: flex; justify-content: center; align-items: center;
    gap: 6px; flex-wrap: wrap;
    margin: var(--sp-10) 0 var(--sp-3);
}
.page-btn {
    display: inline-flex; align-items: center; justify-content: center;
    min-width: 40px; height: 40px; padding: 0 12px;
    border-radius: 8px; font-weight: 600; font-size: 14px;
    color: var(--gray-700); background: var(--bg-card);
    border: 1px solid var(--border);
    text-decoration: none; transition: all 0.15s;
}
.page-btn:hover:not(.disabled):not(.active) {
    background: var(--green-50); border-color: var(--green-500); color: var(--green-600);
}
.page-btn.active {
    background: var(--green-500); color: #fff; border-color: var(--green-500);
    box-shadow: 0 3px 10px rgba(34,197,94,0.35);
}
.page-btn.disabled { opacity: 0.4; cursor: not-allowed; }
.page-ellipsis { padding: 0 6px; color: var(--gray-500); font-weight: 700; }
.pagination-info {
    text-align: center; color: var(--gray-500);
    font-size: 13px; margin-bottom: var(--sp-8);
}

/* ==================== ANIMATIONS ==================== */
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.5; } }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
@keyframes scaleIn { from { opacity: 0; transform: scale(0.92); } to { opacity: 1; transform: scale(1); } }
.fade-in { animation: fadeIn 0.4s ease-out; }
.scale-in { animation: scaleIn 0.4s ease-out; }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 992px) {
    .hero-content { grid-template-columns: 1fr; text-align: left; }
    .feature-strip { grid-template-columns: repeat(2, 1fr); }
    .featured-layout { grid-template-columns: 1fr; }
    .featured-card .card-image { height: 260px; }
    .article-layout { grid-template-columns: 1fr; }
    .article-sidebar { position: static; order: -1; }
    .footer-inner { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
    .side-item { flex-direction: column; padding: 0; overflow: hidden; }
    .side-thumb { width: 100%; height: 160px; border-radius: 0; }
    .side-body { padding: var(--sp-4) var(--sp-4) var(--sp-5); }
    .featured-card .card-image { height: 200px; }
    .featured-card .card-title { font-size: 1.3rem; }
}
@media (max-width: 768px) {
    .menu-toggle { display: inline-flex; }
    .main-nav { display: none; width: 100%; margin-top: 12px; }
    .main-nav.open { display: block; }
    .main-nav ul { flex-direction: column; align-items: stretch; gap: 4px; }
    .main-nav a { display: block; padding: 10px 14px; }
    .hero-pro { padding: var(--sp-10) var(--sp-5); }
    .hero-title { font-size: 2.1rem; }
    .article-body, .page-content, .quiz-screen { padding: var(--sp-5); }
    .article-hero-body { padding: var(--sp-5); }
    .featured-card .card-body { padding: var(--sp-5); }
    .footer-inner { grid-template-columns: 1fr; gap: var(--sp-6); text-align: left; }
    .feature-strip { grid-template-columns: 1fr; }
    .article-hero-image { height: 220px; }
    .score-donut { width: 160px; height: 160px; }
    .score-num { font-size: 2.5rem; }
}