:root {
  --green: #1B5E3B;
  --green-dark: #123D27;
  --navy: #0B1F3A;
  --gold: #D4AF37;
  --white: #FFFFFF;
  --bg: #F5F7F5;
  --text: #1A1F1C;
  --muted: #6B7570;
  --danger: #B4123F;
  --danger-bg: #FDE8ED;
  --success: #1B5E3B;
  --success-bg: #E6F2EA;
}
* { box-sizing: border-box; }
body { margin: 0; font-family: 'Segoe UI', Roboto, Arial, sans-serif; background: var(--bg); color: var(--text); line-height: 1.55; }
.container { max-width: 1100px; margin: 0 auto; padding: 0 20px; }
a { color: var(--green); text-decoration: none; }
h1, h2, h3, h4 { font-family: 'Georgia', serif; color: var(--navy); margin-top: 0; }
.muted { color: var(--muted); }

/* Header */
.site-header { background: var(--navy); box-shadow: 0 2px 10px rgba(0,0,0,0.15); position: sticky; top: 0; z-index: 50; }
.header-inner { display: flex; align-items: center; justify-content: space-between; padding: 14px 20px; }
.brand { color: var(--white); font-weight: 700; font-size: 1.15rem; display: flex; align-items: center; gap: 8px; }
.brand-badge { color: var(--gold); }
.site-nav { display: flex; align-items: center; gap: 18px; }
.site-nav a { color: #DDE3E0; font-weight: 500; }
.site-nav a:hover { color: var(--gold); }
.btn-nav { background: var(--gold); color: var(--navy) !important; padding: 8px 16px; border-radius: 6px; font-weight: 700; }
.nav-toggle, .nav-burger { display: none; }

@media (max-width: 780px) {
  .nav-burger { display: block; color: var(--white); font-size: 1.4rem; cursor: pointer; }
  .site-nav { display: none; flex-direction: column; align-items: flex-start; gap: 12px; width: 100%; padding: 14px 20px; background: var(--navy); position: absolute; top: 60px; left: 0; }
  .nav-toggle:checked ~ .site-nav { display: flex; }
}

/* Buttons */
.btn { display: inline-block; padding: 12px 22px; border-radius: 8px; font-weight: 700; cursor: pointer; border: none; font-size: 0.95rem; }
.btn-primary { background: var(--green); color: var(--white); }
.btn-primary:hover { background: var(--green-dark); }
.btn-gold { background: var(--gold); color: var(--navy); }
.btn-outline { background: transparent; border: 2px solid var(--white); color: var(--white); }
.btn-block { width: 100%; text-align: center; }
.btn-sm { padding: 7px 14px; font-size: 0.82rem; border-radius: 6px; }
.btn-danger { background: var(--danger); color: var(--white); }

/* Hero */
.hero { background: linear-gradient(135deg, var(--navy) 0%, var(--green-dark) 100%); color: var(--white); padding: 70px 0 60px; text-align: center; }
.hero h1 { color: var(--white); font-size: 2.3rem; max-width: 700px; margin: 0 auto 14px; }
.hero p { color: #D9E2DC; max-width: 560px; margin: 0 auto 26px; font-size: 1.05rem; }
.hero-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* Cards */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin: 40px 0; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
@media (max-width: 780px) { .grid-3, .grid-2 { grid-template-columns: 1fr; } }
.card { background: var(--white); border-radius: 12px; padding: 26px; box-shadow: 0 2px 12px rgba(11,31,58,0.08); }
.service-card { text-align: center; }
.service-logo { width: 68px; height: 68px; border-radius: 50%; background: var(--navy); color: var(--gold); display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1.1rem; margin: 0 auto 14px; }
.section { padding: 50px 0; }
.section-title { text-align: center; margin-bottom: 8px; }
.section-sub { text-align: center; color: var(--muted); margin-bottom: 30px; }

/* Forms */
.form-wrap { max-width: 420px; margin: 50px auto; }
.field { margin-bottom: 16px; }
label { display: block; font-weight: 600; margin-bottom: 6px; font-size: 0.9rem; }
input[type=text], input[type=email], input[type=password], input[type=tel], input[type=number], select, textarea {
  width: 100%; padding: 11px 13px; border: 1px solid #D7DDD9; border-radius: 8px; font-size: 0.95rem; background: var(--white);
}
textarea { resize: vertical; }

/* Flash */
.flash { padding: 12px 16px; border-radius: 8px; margin: 16px 0; font-size: 0.9rem; }
.flash-success { background: var(--success-bg); color: var(--success); }
.flash-error { background: var(--danger-bg); color: var(--danger); }

/* Dashboard */
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin: 24px 0; }
@media (max-width: 780px) { .stat-grid { grid-template-columns: repeat(2, 1fr); } }
.stat-card { background: var(--white); border-radius: 10px; padding: 18px; text-align: center; box-shadow: 0 2px 10px rgba(11,31,58,0.06); }
.stat-card .num { font-size: 1.6rem; font-weight: 800; color: var(--green); }
.stat-card .label { font-size: 0.8rem; color: var(--muted); }

/* Tables */
table { width: 100%; border-collapse: collapse; background: var(--white); border-radius: 8px; overflow: hidden; }
th, td { padding: 10px 12px; text-align: left; border-bottom: 1px solid #EEF1EF; font-size: 0.88rem; }
th { background: var(--navy); color: var(--white); }
tr:hover td { background: #F7FAF8; }

/* Exam */
.exam-shell { background: var(--white); border-radius: 12px; padding: 26px; box-shadow: 0 2px 12px rgba(11,31,58,0.08); }
.exam-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; flex-wrap: wrap; gap: 10px; }
.timer { background: var(--navy); color: var(--gold); padding: 8px 16px; border-radius: 8px; font-weight: 700; font-variant-numeric: tabular-nums; }
.progress-bar { height: 8px; background: #E6EAE7; border-radius: 4px; overflow: hidden; margin-bottom: 20px; }
.progress-fill { height: 100%; background: var(--green); transition: width .2s; }
.option-row { display: block; padding: 12px 14px; border: 1px solid #E1E6E2; border-radius: 8px; margin-bottom: 10px; cursor: pointer; }
.option-row:hover { border-color: var(--green); }
.option-row.selected { border-color: var(--green); background: #EFF7F1; }
.option-row input { margin-right: 10px; }
.qnav { display: flex; flex-wrap: wrap; gap: 6px; margin: 18px 0; }
.qnav-btn { width: 34px; height: 34px; border-radius: 6px; border: 1px solid #D7DDD9; background: var(--white); font-size: 0.8rem; cursor: pointer; }
.qnav-btn.answered { background: var(--green); color: var(--white); border-color: var(--green); }
.qnav-btn.marked { border-color: var(--gold); box-shadow: inset 0 0 0 2px var(--gold); }
.qnav-btn.current { outline: 2px solid var(--navy); }
.exam-actions { display: flex; justify-content: space-between; margin-top: 20px; flex-wrap: wrap; gap: 10px; }

/* Result */
.score-badge { display: inline-block; padding: 10px 22px; border-radius: 30px; font-weight: 800; font-size: 1.4rem; }
.score-pass { background: var(--success-bg); color: var(--success); }
.score-fail { background: var(--danger-bg); color: var(--danger); }
.review-item { border: 1px solid #E1E6E2; border-radius: 8px; padding: 16px; margin-bottom: 12px; }
.review-item.correct { border-left: 4px solid var(--green); }
.review-item.incorrect { border-left: 4px solid var(--danger); }

.badge { display: inline-block; padding: 3px 10px; border-radius: 20px; font-size: 0.72rem; font-weight: 700; }
.badge-gold { background: #FBF1D6; color: #8A6D1A; }
.badge-green { background: var(--success-bg); color: var(--success); }
.badge-red { background: var(--danger-bg); color: var(--danger); }

.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 24px; padding: 40px 20px 20px; }
@media (max-width: 780px) { .footer-inner { grid-template-columns: 1fr; } }
.site-footer { background: var(--navy); color: #C9D1CC; margin-top: 60px; }
.site-footer a { color: #C9D1CC; }
.footer-bottom { padding: 16px 20px; border-top: 1px solid rgba(255,255,255,0.1); font-size: 0.8rem; }

.faq-item { border-bottom: 1px solid #E1E6E2; padding: 14px 0; }
.pill { display: inline-block; padding: 4px 12px; border-radius: 20px; background: #EFF7F1; color: var(--green); font-size: 0.78rem; font-weight: 700; margin-bottom: 8px; }