:root {
    --lms-primary: #2563eb;
    --lms-primary-dark: #1d4ed8;
    --lms-navy: #0f172a;
    --lms-blue-soft: #eff6ff;
    --lms-success: #16a34a;
    --lms-bg: #f8fafc;
    --lms-surface: #ffffff;
    --lms-border: #e2e8f0;
    --lms-text: #1e293b;
    --lms-muted: #64748b;
}

* { box-sizing: border-box; }

html { min-width: 320px; background: var(--lms-bg); }

body {
    margin: 0;
    min-height: 100vh;
    color: var(--lms-text);
    background:
        radial-gradient(circle at 50% 0, rgba(37, 99, 235, .08), transparent 34rem),
        var(--lms-bg);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.certificate-verification-page {
    width: min(980px, 100%);
    margin: 0 auto;
    padding: 42px 20px 56px;
}

.certificate-shell {
    overflow: hidden;
    background: var(--lms-surface);
    border: 1px solid var(--lms-border);
    border-radius: 22px;
    box-shadow: 0 24px 70px rgba(15, 23, 42, .09);
}

.certificate-hero {
    position: relative;
    padding: 44px 32px 36px;
    text-align: center;
    color: #fff;
    background: linear-gradient(135deg, var(--lms-navy), #172554 72%, var(--lms-primary-dark));
}

.certificate-brand {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 68px;
    height: 52px;
    margin-bottom: 18px;
    padding: 7px;
    border-radius: 12px;
    background: #fff;
}

.certificate-brand img {
    display: block;
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.verified-seal {
    position: absolute;
    top: 26px;
    right: 28px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    border: 1px solid rgba(147, 197, 253, .55);
    border-radius: 50%;
    color: #bbf7d0;
    background: rgba(22, 163, 74, .16);
    font-size: 25px;
    font-weight: 900;
}

.certificate-status {
    display: inline-flex;
    align-items: center;
    min-height: 38px;
    padding: 0 15px;
    border-radius: 999px;
    color: #166534;
    background: #dcfce7;
    font-size: 14px;
    font-weight: 850;
}

.certificate-issued-by {
    margin: 12px 0 0;
    color: #bfdbfe;
    font-size: 13px;
    font-weight: 650;
}

.certificate-hero h1 {
    margin: 14px 0 8px;
    font-size: clamp(28px, 5vw, 42px);
    line-height: 1.1;
    letter-spacing: -.025em;
}

.certificate-subtitle {
    max-width: 620px;
    margin: 0 auto;
    color: #cbd5e1;
    font-size: 14px;
    line-height: 1.6;
}

.certificate-details,
.certificate-completion {
    margin: 28px 32px 0;
    overflow: hidden;
    border: 1px solid var(--lms-border);
    border-radius: 15px;
}

.certificate-detail-row {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr);
    gap: 24px;
    align-items: center;
    min-height: 66px;
    padding: 14px 20px;
    border-bottom: 1px solid var(--lms-border);
}

.certificate-detail-row:last-child { border-bottom: 0; }
.certificate-detail-row > span { color: var(--lms-muted); font-size: 13px; font-weight: 650; }
.certificate-detail-row > strong { min-width: 0; color: var(--lms-navy); font-size: 15px; text-align: right; overflow-wrap: anywhere; }
.certificate-id { font-variant-numeric: tabular-nums; letter-spacing: .02em; }

.certificate-completion { padding: 0; }

.section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    padding: 21px 20px 17px;
    background: var(--lms-blue-soft);
    border-bottom: 1px solid #dbeafe;
}

.section-heading > div > span {
    color: var(--lms-primary-dark);
    font-size: 10px;
    font-weight: 850;
    letter-spacing: .1em;
}

.section-heading h2 {
    margin: 5px 0 0;
    color: var(--lms-navy);
    font-size: 20px;
}

.completion-count {
    flex: 0 0 auto;
    color: var(--lms-primary-dark);
    font-size: 12px;
}

.completion-row {
    display: flex;
    align-items: center;
    gap: 11px;
    min-height: 51px;
    padding: 11px 20px;
    border-bottom: 1px solid var(--lms-border);
    color: var(--lms-text);
    font-size: 14px;
}

.completion-row:last-child { border-bottom: 0; }

.completion-check {
    display: inline-flex;
    flex: 0 0 22px;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    border-radius: 6px;
    color: #fff;
    background: var(--lms-success);
    font-size: 13px;
    font-weight: 900;
}

.completion-empty {
    padding: 18px 20px;
    color: var(--lms-muted);
    font-size: 13px;
}

.verification-note {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    gap: 8px;
    margin: 26px 32px 0;
    padding: 14px 16px;
    border-top: 1px solid var(--lms-border);
    color: var(--lms-muted);
    font-size: 13px;
    line-height: 1.5;
    text-align: center;
}

.verification-note > span:first-child { color: var(--lms-success); font-weight: 900; }

.certificate-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 11px;
    margin: 10px 32px 0;
}

.action-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 46px;
    padding: 10px 18px;
    border: 1px solid transparent;
    border-radius: 999px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 800;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}

.action-button:hover { transform: translateY(-1px); box-shadow: 0 8px 20px rgba(15, 23, 42, .1); }
.action-primary { background: var(--lms-primary); color: #fff; }
.action-primary:hover { background: var(--lms-primary-dark); }
.action-secondary { background: #0a66c2; color: #fff; }
.action-whatsapp { background: #16a34a; color: #fff; }

.certificate-footer {
    display: flex;
    justify-content: space-between;
    gap: 15px;
    margin: 34px 32px 0;
    padding: 18px 0 24px;
    border-top: 1px solid var(--lms-border);
    color: #94a3b8;
    font-size: 11px;
}

.action-button:focus-visible,
.certificate-brand:focus-visible {
    outline: 3px solid #93c5fd;
    outline-offset: 3px;
}

@media (max-width: 680px) {
    .certificate-verification-page { padding: 14px 10px 30px; }
    .certificate-shell { border-radius: 15px; }
    .certificate-hero { padding: 32px 18px 28px; }
    .verified-seal { top: 18px; right: 16px; width: 44px; height: 44px; font-size: 20px; }
    .certificate-brand { margin-bottom: 14px; }
    .certificate-details,
    .certificate-completion { margin-left: 14px; margin-right: 14px; }
    .certificate-detail-row { grid-template-columns: 1fr; gap: 5px; min-height: 0; padding: 14px 16px; }
    .certificate-detail-row > strong { text-align: left; }
    .section-heading { align-items: flex-start; flex-direction: column; padding: 18px 16px 15px; }
    .completion-row { padding: 10px 16px; }
    .verification-note { margin-left: 14px; margin-right: 14px; }
    .certificate-actions { flex-direction: column; margin-left: 14px; margin-right: 14px; }
    .action-button { width: 100%; }
    .certificate-footer { flex-direction: column; margin-left: 14px; margin-right: 14px; }
}

@media (prefers-reduced-motion: reduce) {
    .action-button { transition: none; }
    .action-button:hover { transform: none; }
}