/* ============================================================
   이벗 API 문서 포털 — portal.css
   다크 navy 톤 (wms-v3 / manager-v3 헤더와 일관)
   ============================================================ */

:root {
    --ebut-navy: #1a2332;
    --ebut-navy-deep: #0f1620;
    --ebut-navy-soft: #232d3d;
    --ebut-accent: #4a90e2;
    --ebut-accent-hover: #5ba0f2;
    --ebut-accent-soft: rgba(74, 144, 226, 0.12);
    --ebut-text: #e8ecf1;
    --ebut-text-strong: #ffffff;
    --ebut-text-muted: #8a95a5;
    --ebut-text-faint: #5a6878;
    --ebut-border: rgba(255, 255, 255, 0.08);
    --ebut-border-strong: rgba(255, 255, 255, 0.14);
    --ebut-v3-badge: #03c75a;
    --ebut-soon-badge: #6b7588;

    --radius-sm: 6px;
    --radius-md: 12px;
    --radius-lg: 20px;
}

* { box-sizing: border-box; }

html, body {
    margin: 0;
    padding: 0;
    background: var(--ebut-navy-deep);
    color: var(--ebut-text);
    font-family: 'Pretendard Variable', Pretendard, -apple-system, BlinkMacSystemFont,
        system-ui, Roboto, 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    line-height: 1.5;
}

a { color: inherit; text-decoration: none; }

/* ================= 상단 헤더 ================= */
.portal-header {
    background: linear-gradient(135deg, var(--ebut-navy-deep) 0%, var(--ebut-navy) 100%);
    border-bottom: 1px solid var(--ebut-border);
    padding: 16px 0;
    position: sticky;
    top: 0;
    z-index: 50;
    backdrop-filter: blur(12px);
}

.portal-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 28px;
}

.portal-brand {
    display: flex;
    align-items: center;
    gap: 12px;
}

.portal-brand-mark {
    width: 36px;
    height: 36px;
    border-radius: 9px;
    background: linear-gradient(135deg, var(--ebut-accent) 0%, #6cb0ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    font-size: 16px;
    color: white;
    box-shadow: 0 2px 8px rgba(74, 144, 226, 0.3);
}

.portal-brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.portal-brand-title {
    font-size: 17px;
    font-weight: 700;
    letter-spacing: -0.01em;
    color: var(--ebut-text-strong);
}

.portal-brand-sub {
    font-size: 12px;
    color: var(--ebut-text-muted);
    margin-top: 2px;
}

.portal-nav {
    display: flex;
    align-items: center;
    gap: 4px;
}

.portal-nav-link {
    padding: 8px 14px;
    font-size: 13px;
    font-weight: 500;
    color: var(--ebut-text-muted);
    border-radius: 8px;
    transition: all 0.15s ease;
}

.portal-nav-link:hover {
    color: var(--ebut-text);
    background: rgba(255, 255, 255, 0.05);
}

.portal-nav-cta {
    padding: 8px 16px;
    margin-left: 6px;
    font-size: 13px;
    font-weight: 600;
    color: white;
    background: var(--ebut-accent);
    border-radius: 8px;
    transition: all 0.15s ease;
}

.portal-nav-cta:hover {
    background: var(--ebut-accent-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(74, 144, 226, 0.35);
}

/* ================= 히어로 ================= */
.portal-hero {
    text-align: center;
    padding: 72px 28px 40px;
    max-width: 880px;
    margin: 0 auto;
}

.portal-hero-eyebrow {
    display: inline-block;
    padding: 5px 12px;
    background: var(--ebut-accent-soft);
    color: #9ec6f5;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.02em;
    margin-bottom: 18px;
}

.portal-hero h1 {
    font-size: 40px;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: var(--ebut-text-strong);
    margin: 0 0 18px;
    line-height: 1.2;
}

.portal-hero h1 .gradient {
    background: linear-gradient(135deg, #6cb0ff 0%, #4a90e2 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.portal-hero p {
    font-size: 16px;
    color: var(--ebut-text-muted);
    margin: 0;
    max-width: 640px;
    margin-left: auto;
    margin-right: auto;
    word-break: keep-all;
}

.portal-hero-meta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-top: 22px;
    padding: 7px 14px;
    font-size: 12px;
    color: var(--ebut-text-muted);
    background: var(--ebut-navy);
    border: 1px solid var(--ebut-border);
    border-radius: 999px;
}

.portal-hero-meta code {
    font-family: 'JetBrains Mono', 'D2Coding', ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 12px;
    color: var(--ebut-text);
}

/* ================= 카드 그리드 ================= */
.portal-main {
    max-width: 1240px;
    margin: 0 auto;
    padding: 32px 28px 80px;
}

.portal-section-title {
    font-size: 14px;
    font-weight: 700;
    color: var(--ebut-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin: 0 0 18px;
}

.portal-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

@media (max-width: 760px) {
    .portal-grid { grid-template-columns: 1fr; }
}

/* ================= 카드 ================= */
.portal-card {
    position: relative;
    display: flex;
    flex-direction: column;
    background: var(--ebut-navy);
    border: 1px solid var(--ebut-border);
    border-radius: var(--radius-lg);
    padding: 28px;
    transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
    min-height: 240px;
}

.portal-card.active:hover {
    transform: translateY(-3px);
    border-color: var(--ebut-accent);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45),
                0 0 0 1px rgba(74, 144, 226, 0.3);
}

.portal-card.soon {
    opacity: 0.72;
    cursor: not-allowed;
}

.portal-card-head {
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 16px;
}

.portal-card-icon {
    width: 44px;
    height: 44px;
    border-radius: 11px;
    background: linear-gradient(135deg, var(--ebut-accent) 0%, #6cb0ff 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 22px;
    color: white;
    flex-shrink: 0;
}

.portal-card.soon .portal-card-icon {
    background: linear-gradient(135deg, #4b5666 0%, #6b7588 100%);
}

.portal-card-title-area {
    display: flex;
    flex-direction: column;
    line-height: 1.25;
}

.portal-card-title {
    font-size: 19px;
    font-weight: 700;
    color: var(--ebut-text-strong);
    display: flex;
    align-items: center;
    gap: 8px;
}

.portal-card-badge {
    display: inline-block;
    padding: 2px 7px;
    background: var(--ebut-v3-badge);
    color: white;
    font-size: 10px;
    font-weight: 700;
    border-radius: 4px;
    letter-spacing: 0.02em;
}

.portal-card.soon .portal-card-badge {
    background: var(--ebut-soon-badge);
}

.portal-card-sub {
    font-size: 12px;
    color: var(--ebut-text-muted);
    margin-top: 3px;
}

.portal-card-desc {
    font-size: 14px;
    color: var(--ebut-text-muted);
    margin: 0 0 18px;
    line-height: 1.6;
    word-break: keep-all;
    flex-grow: 1;
}

.portal-card-stats {
    display: flex;
    gap: 18px;
    margin-bottom: 18px;
    font-size: 12px;
    color: var(--ebut-text-muted);
}

.portal-card-stat {
    display: flex;
    align-items: baseline;
    gap: 5px;
}

.portal-card-stat strong {
    font-size: 17px;
    font-weight: 700;
    color: var(--ebut-text);
    font-variant-numeric: tabular-nums;
}

.portal-card-foot {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid var(--ebut-border);
    padding-top: 16px;
}

.portal-card-gateway {
    font-family: 'JetBrains Mono', 'D2Coding', ui-monospace, SFMono-Regular, Consolas, monospace;
    font-size: 12px;
    color: var(--ebut-text-faint);
}

.portal-card-cta {
    font-size: 13px;
    font-weight: 600;
    color: var(--ebut-accent);
    display: inline-flex;
    align-items: center;
    gap: 5px;
}

.portal-card.soon .portal-card-cta {
    color: var(--ebut-text-faint);
}

.portal-card-link-overlay {
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
}

/* ================= 외부 자원 영역 ================= */
.portal-resources {
    margin-top: 56px;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 14px;
}

@media (max-width: 760px) {
    .portal-resources { grid-template-columns: 1fr; }
}

.portal-resource {
    padding: 18px;
    background: var(--ebut-navy);
    border: 1px solid var(--ebut-border);
    border-radius: var(--radius-md);
    transition: border-color 0.15s ease, transform 0.15s ease;
}

.portal-resource:hover {
    border-color: var(--ebut-border-strong);
    transform: translateY(-2px);
}

.portal-resource-name {
    font-size: 14px;
    font-weight: 600;
    color: var(--ebut-text);
}

.portal-resource-desc {
    font-size: 12px;
    color: var(--ebut-text-muted);
    margin-top: 4px;
}

/* ================= 푸터 ================= */
.portal-footer {
    border-top: 1px solid var(--ebut-border);
    padding: 28px 28px 36px;
    text-align: center;
    color: var(--ebut-text-faint);
    font-size: 12px;
}

.portal-footer-line {
    margin: 4px 0;
}

.portal-footer a {
    color: var(--ebut-text-muted);
    transition: color 0.15s ease;
}

.portal-footer a:hover { color: var(--ebut-text); }

/* ================= 반응형 ================= */
@media (max-width: 640px) {
    .portal-header-inner { padding: 0 16px; }
    .portal-nav-link { display: none; }
    .portal-brand-sub { display: none; }
    .portal-hero { padding: 48px 18px 24px; }
    .portal-hero h1 { font-size: 30px; }
    .portal-hero p { font-size: 14px; }
    .portal-main { padding: 24px 16px 60px; }
    .portal-card { padding: 22px; min-height: auto; }
    .portal-card-title { font-size: 17px; }
    .portal-card-stats { flex-wrap: wrap; gap: 12px; }
}