/**
 * Joyn LMS 수료증 — 4종 템플릿 (샘플 HTML 기준)
 * ============================================================
 */
:root {
    --joyn-primary: #4A90D9;
    --joyn-primary-dark: #3A7BC8;
    --joyn-primary-light: #E8F0FE;
    --joyn-secondary: #6C63FF;
    --joyn-success: #00A854;
    --joyn-warning: #FAAD14;
    --joyn-danger: #F5222D;
    --joyn-text: #1D2327;
    --joyn-text-secondary: #646970;
    --joyn-text-muted: #8C8F94;
    --joyn-bg: #F7F8FA;
    --joyn-border: #E0E0E0;
    --joyn-border-light: #F0F0F0;
    --joyn-radius-md: 8px;
    --joyn-radius-lg: 12px;
    --joyn-radius-full: 9999px;
}

.joyn-lms-certificate-page {
    max-width: 900px;
    margin: 40px auto;
    padding: 20px;
    font-family: -apple-system, sans-serif;
}

/* 액션 버튼 (수료증 하단) */
.cert-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 16px;
}

.cert-actions .btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 10px 20px;
    border-radius: var(--joyn-radius-md);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    border: 2px solid var(--joyn-border);
    background: #fff;
    color: var(--joyn-text);
    transition: all 0.15s;
    font-family: inherit;
}

.cert-actions .btn:hover {
    border-color: var(--joyn-primary);
    color: var(--joyn-primary);
}

.cert-actions .btn--fill {
    background: var(--joyn-primary);
    border-color: var(--joyn-primary);
    color: #fff;
}

.cert-actions .btn--fill:hover {
    background: var(--joyn-primary-dark);
    border-color: var(--joyn-primary-dark);
    color: #fff;
}

/* 검증 카드 */
.cert-verify {
    width: 720px;
    max-width: 100%;
    margin: 24px auto 0;
    background: var(--joyn-bg);
    border: 1px solid var(--joyn-border);
    border-radius: var(--joyn-radius-lg);
    padding: 24px 32px;
}

.cert-verify__title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 700;
    color: var(--joyn-success);
    margin-bottom: 16px;
}

.cert-verify table {
    width: 100%;
    border-collapse: collapse;
}

.cert-verify th,
.cert-verify td {
    padding: 10px 0;
    border-bottom: 1px solid var(--joyn-border-light);
    font-size: 14px;
    text-align: left;
}

.cert-verify th {
    color: var(--joyn-text-muted);
    width: 120px;
    font-weight: 600;
}

.cert-verify td {
    color: var(--joyn-text);
}

.cert-verify tr:last-child th,
.cert-verify tr:last-child td {
    border-bottom: none;
}

/* TYPE 1 — 클래식 */
.c1 {
    width: 720px;
    max-width: 100%;
    background: #fff;
    border-radius: var(--joyn-radius-lg);
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    overflow: hidden;
}

.c1__border {
    border: 3px solid var(--joyn-primary);
    margin: 16px;
    border-radius: var(--joyn-radius-md);
    padding: 48px 40px;
    text-align: center;
    position: relative;
}

.c1__border::before,
.c1__border::after {
    content: '';
    position: absolute;
    width: 60px;
    height: 60px;
    border: 3px solid var(--joyn-warning);
}

.c1__border::before {
    top: -3px;
    left: -3px;
    border-right: none;
    border-bottom: none;
    border-radius: var(--joyn-radius-md) 0 0 0;
}

.c1__border::after {
    bottom: -3px;
    right: -3px;
    border-left: none;
    border-top: none;
    border-radius: 0 0 var(--joyn-radius-md) 0;
}

.c1__logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 24px;
    color: var(--joyn-primary);
    margin-bottom: 8px;
}

.c1__logo em {
    font-style: normal;
    color: var(--joyn-warning);
}

.c1__h {
    font-size: 36px;
    font-weight: 300;
    color: var(--joyn-text);
    letter-spacing: 8px;
    margin: 0 0 8px;
}

.c1__sub {
    font-size: 12px;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--joyn-text-muted);
    margin-bottom: 32px;
}

.c1__desc {
    font-size: 14px;
    color: var(--joyn-text-secondary);
    line-height: 1.8;
    margin-bottom: 8px;
}

.c1__name {
    font-size: 32px;
    font-weight: 800;
    color: var(--joyn-text);
    margin-bottom: 8px;
    border-bottom: 2px solid var(--joyn-warning);
    display: inline-block;
    padding-bottom: 4px;
}

.c1__course {
    font-size: 16px;
    color: var(--joyn-text-secondary);
    margin: 16px 0 32px;
    line-height: 1.6;
}

.c1__course strong {
    color: var(--joyn-primary);
    font-weight: 700;
}

.c1__foot {
    display: flex;
    justify-content: space-between;
    padding-top: 32px;
    border-top: 1px solid var(--joyn-border);
}

.c1__lbl {
    font-size: 11px;
    color: var(--joyn-text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.c1__val {
    font-size: 14px;
    color: var(--joyn-text-muted);
    margin-top: 4px;
}

.c1__id {
    font-size: 11px;
    color: var(--joyn-text-muted);
    margin-top: 24px;
    font-family: 'Outfit', monospace;
}

/* TYPE 2 — 프리미엄 골드 */
.c2 {
    width: 720px;
    max-width: 100%;
    border-radius: var(--joyn-radius-lg);
    box-shadow: 0 8px 40px rgba(0,0,0,0.12);
    overflow: hidden;
    background: linear-gradient(180deg, #fffdf5, #fff 30%);
}

.c2__bar {
    height: 8px;
    background: linear-gradient(90deg, #c8a44e, #e8d48b 30%, #c8a44e 50%, #e8d48b 70%, #c8a44e);
}

.c2__body {
    padding: 48px 56px;
    text-align: center;
    position: relative;
}

.c2__body::before {
    content: '';
    position: absolute;
    top: 24px;
    left: 24px;
    right: 24px;
    bottom: 24px;
    border: 1px solid rgba(200,164,78,0.2);
    border-radius: 4px;
    pointer-events: none;
}

.c2__emblem {
    width: 72px;
    height: 72px;
    margin: 0 auto 16px;
    background: linear-gradient(135deg, #c8a44e, #e8d48b);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 16px rgba(200,164,78,0.3);
}

.c2__org {
    font-family: 'Pretendard', serif;
    font-size: 14px;
    font-weight: 700;
    color: #8b7332;
    letter-spacing: 6px;
    margin-bottom: 8px;
}

.c2__h {
    font-family: 'Pretendard', serif;
    font-size: 40px;
    font-weight: 900;
    color: #2c2417;
    letter-spacing: 12px;
    margin-bottom: 4px;
}

.c2__sub {
    font-size: 11px;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: #b8973e;
    margin-bottom: 36px;
}

.c2__line {
    width: 80px;
    height: 1px;
    background: linear-gradient(90deg, transparent, #c8a44e, transparent);
    margin: 0 auto 24px;
}

.c2__desc {
    font-size: 13px;
    color: #7c7062;
    line-height: 1.8;
    margin-bottom: 20px;
}

.c2__name {
    font-family: 'Pretendard', serif;
    font-size: 34px;
    font-weight: 900;
    color: #2c2417;
    position: relative;
    display: inline-block;
}

.c2__name::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: linear-gradient(90deg, transparent, #c8a44e, transparent);
}

.c2__course {
    font-size: 15px;
    color: #7c7062;
    margin: 24px 0 36px;
    line-height: 1.7;
}

.c2__course strong {
    color: #8b7332;
    font-weight: 700;
}

.c2__foot {
    display: flex;
    justify-content: space-between;
    padding-top: 24px;
    border-top: 1px solid rgba(200,164,78,0.15);
}

.c2__lbl {
    font-size: 10px;
    color: #b8973e;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.c2__val {
    font-size: 13px;
    color: #7c7062;
    margin-top: 4px;
}

.c2__id {
    font-size: 10px;
    color: #c8a44e;
    margin-top: 20px;
    font-family: 'Outfit', monospace;
    letter-spacing: 1px;
}

/* TYPE 3 — 모던 미니멀 */
.c3 {
    width: 720px;
    max-width: 100%;
    background: #fff;
    border-radius: var(--joyn-radius-lg);
    box-shadow: 0 4px 24px rgba(0,0,0,0.08);
    overflow: hidden;
}

.c3__accent {
    height: 6px;
    background: linear-gradient(90deg, var(--joyn-primary), var(--joyn-secondary), #e040fb);
}

.c3__body {
    padding: 56px;
}

.c3__header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 48px;
}

.c3__logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 20px;
    color: var(--joyn-primary);
}

.c3__logo em {
    font-style: normal;
    color: var(--joyn-secondary);
    font-size: 12px;
    display: block;
    letter-spacing: 3px;
    text-transform: uppercase;
    margin-top: 2px;
}

.c3__badge {
    background: linear-gradient(135deg, var(--joyn-primary), var(--joyn-secondary));
    color: #fff;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 2px;
    text-transform: uppercase;
    padding: 6px 16px;
    border-radius: var(--joyn-radius-full);
}

.c3__lbl {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 4px;
    text-transform: uppercase;
    color: var(--joyn-text-muted);
    margin-bottom: 12px;
}

.c3__name {
    font-size: 42px;
    font-weight: 900;
    letter-spacing: -1px;
    line-height: 1.15;
    margin-bottom: 24px;
    background: linear-gradient(135deg, var(--joyn-text), var(--joyn-primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.c3__clbl {
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 3px;
    text-transform: uppercase;
    color: var(--joyn-primary);
    margin-bottom: 8px;
}

.c3__cname {
    font-size: 18px;
    font-weight: 700;
    color: var(--joyn-text);
    line-height: 1.5;
    margin-bottom: 48px;
}

.c3__meta {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    padding-top: 32px;
    border-top: 1px solid var(--joyn-border-light);
}

.c3__mlbl {
    font-size: 10px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--joyn-text-muted);
    margin-bottom: 4px;
}

.c3__mval {
    font-size: 14px;
    font-weight: 600;
    color: var(--joyn-text);
}

.c3__mval--mono {
    font-family: 'Outfit', monospace;
    font-size: 12px;
    color: var(--joyn-text-secondary);
}

.c3__footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    border-top: 1px solid var(--joyn-border-light);
    margin-top: 32px;
}

.c3__verify {
    font-size: 11px;
    color: var(--joyn-success);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 4px;
}

.c3__qr {
    width: 56px;
    height: 56px;
    background: var(--joyn-bg);
    border-radius: var(--joyn-radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--joyn-border-light);
}

/* TYPE 4 — 다크 엘레강스 */
.c4 {
    width: 720px;
    max-width: 100%;
    border-radius: var(--joyn-radius-lg);
    overflow: hidden;
    box-shadow: 0 8px 40px rgba(0,0,0,0.3);
    background: linear-gradient(160deg, #0f1923, #162232 40%, #1a2a40);
    position: relative;
}

.c4::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 80%, rgba(74,144,217,0.08), transparent 40%), radial-gradient(circle at 80% 20%, rgba(108,99,255,0.06), transparent 40%);
    pointer-events: none;
}

.c4__body {
    padding: 56px;
    text-align: center;
    position: relative;
    z-index: 1;
}

.c4__stars {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 20px;
}

.c4__star {
    width: 8px;
    height: 8px;
    background: rgba(250,173,20,0.25);
    border-radius: 50%;
}

.c4__star--on {
    background: #faad14;
    box-shadow: 0 0 8px rgba(250,173,20,0.4);
}

.c4__logo {
    font-family: 'Outfit', sans-serif;
    font-weight: 800;
    font-size: 22px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 4px;
}

.c4__logo em {
    font-style: normal;
    color: var(--joyn-primary);
}

.c4__org {
    font-size: 14px;
    letter-spacing: 8px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.2);
    margin-bottom: 8px;
}

.c4__h {
    font-family: 'Pretendard', serif;
    font-size: 38px;
    font-weight: 900;
    color: #fff;
    letter-spacing: 6px;
    margin-bottom: 4px;
}

.c4__sub {
    font-size: 12px;
    letter-spacing: 6px;
    text-transform: uppercase;
    color: rgba(74,144,217,0.6);
    margin-bottom: 40px;
}

.c4__line {
    width: 60px;
    height: 1px;
    margin: 0 auto 28px;
    background: linear-gradient(90deg, transparent, rgba(74,144,217,0.4), transparent);
}

.c4__desc {
    font-size: 13px;
    color: rgba(255,255,255,0.4);
    line-height: 1.8;
    margin-bottom: 16px;
}

.c4__name {
    font-size: 36px;
    font-weight: 900;
    color: #fff;
    margin-bottom: 8px;
    text-shadow: 0 2px 20px rgba(74,144,217,0.2);
}

.c4__nline {
    width: 120px;
    height: 2px;
    margin: 0 auto 24px;
    background: linear-gradient(90deg, transparent, var(--joyn-warning), transparent);
}

.c4__course {
    font-size: 15px;
    color: rgba(255,255,255,0.5);
    margin-bottom: 40px;
    line-height: 1.7;
}

.c4__course strong {
    color: var(--joyn-primary);
    font-weight: 700;
}

.c4__meta {
    display: flex;
    justify-content: center;
    gap: 48px;
    padding-top: 28px;
    border-top: 1px solid rgba(255,255,255,0.06);
}

.c4__mlbl {
    font-size: 9px;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.25);
    margin-bottom: 4px;
}

.c4__mval {
    font-size: 13px;
    color: rgba(255,255,255,0.6);
}

.c4__mval--id {
    font-family: 'Outfit', monospace;
    font-size: 11px;
    color: rgba(74,144,217,0.5);
}

.c4__glow {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--joyn-primary), var(--joyn-secondary), var(--joyn-primary));
    opacity: 0.6;
    z-index: 2;
}

/* 에러 메시지 */
.joyn-certificate-error {
    text-align: center;
    padding: 80px 20px;
    color: var(--joyn-text-muted);
}

.joyn-certificate-error h2 {
    font-size: 24px;
    color: var(--joyn-text);
    margin-bottom: 8px;
}

/* 인쇄 시 */
@media print {
    body * {
        visibility: hidden;
    }
    #joyn-certificate-print,
    #joyn-certificate-print * {
        visibility: visible;
    }
    #joyn-certificate-print {
        position: absolute;
        left: 0;
        top: 0;
        width: 100%;
    }
    .cert-actions,
    #joyn-cert-actions,
    .cert-verify,
    .joyn-certificate-verify {
        display: none !important;
    }
    .c1, .c2, .c3, .c4 {
        box-shadow: none;
    }
}

/* 반응형 */
@media (max-width: 760px) {
    .c1__border,
    .c2__body,
    .c3__body,
    .c4__body {
        padding: 32px 20px;
    }
    .c1__h,
    .c2__h {
        font-size: 26px;
        letter-spacing: 4px;
    }
    .c1__name,
    .c2__name {
        font-size: 24px;
    }
    .c3__name {
        font-size: 28px;
    }
    .c3__meta {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .c4__h {
        font-size: 26px;
        letter-spacing: 4px;
    }
    .c4__name {
        font-size: 26px;
    }
    .c4__meta {
        flex-direction: column;
        gap: 12px;
    }
    .c1__foot,
    .c2__foot {
        flex-direction: column;
        gap: 12px;
    }
}