/* 척추의 요정 — 공통 스타일
 * 2024년 버전은 헤더·네비 CSS가 네 파일에 복붙되어 있어 한 곳을 고치려면
 * 네 군데를 고쳐야 했다. 이 파일 하나로 합친다. */

/* 고운바탕(Gowun Batang). 구글 폰트, OFL 라이선스라 상업적 사용과 재배포가 자유롭다.
 * 명조체 계열이라 400(본문)/700(강조·제목) 두 굵기만 제공한다. */
@import url("https://fonts.googleapis.com/css2?family=Gowun+Batang:wght@400;700&display=swap");

:root {
    --bg: #EFF2E6;
    --surface: #FFFFFF;
    --ink: #24301F;
    --ink-soft: #6B7A67;
    --line: #E2E0D5;

    --primary: #2E4B32;
    --primary-hover: #243B27;
    --sage: #DCE6D5;
    --sage-deep: #C7D6BE;

    /* 상태색. 테라코타는 거북목에만 쓴다. 장식으로는 쓰지 않는다. */
    --good: #6A9A5B;
    --bad: #C4703A;
    --bad-soft: #F6E7DA;

    --radius: 12px;
    --radius-lg: 18px;
    --shell: 1040px;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Gowun Batang', 'Nanum Myeongjo', Georgia, serif;
    font-weight: 400;
    background: var(--bg);
    color: var(--ink);
    line-height: 1.75;
    letter-spacing: 0.03em;
    -webkit-font-smoothing: antialiased;
}

/* ---------- 헤더 ---------- */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(239, 242, 230, 0.92);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--line);
}
.site-header .inner {
    max-width: var(--shell);
    margin: 0 auto;
    padding: 8px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}
.brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    color: var(--ink);
    font-weight: 700;
    font-size: 0.92rem;
}
.brand svg { height: 30px; width: auto; display: block; }

.site-nav ul {
    list-style: none;
    display: flex;
    gap: 4px;
    margin: 0;
    padding: 0;
}
.site-nav a {
    display: block;
    padding: 6px 14px;
    border-radius: 999px;
    text-decoration: none;
    color: var(--ink-soft);
    font-weight: 500;
    font-size: 0.85rem;
}
.site-nav a:hover { color: var(--ink); background: var(--sage); }
.site-nav li.current a {
    background: var(--primary);
    color: #fff;
}

/* ---------- 페이지 뼈대 ---------- */

.page {
    max-width: var(--shell);
    margin: 0 auto;
    padding: 56px 24px 80px;
}
.page-head { margin-bottom: 40px; }
.page-head h1 {
    font-weight: 700;
    font-size: clamp(1.9rem, 4vw, 2.6rem);
    line-height: 1.3;
    margin: 0 0 14px;
}
.lead {
    color: var(--ink-soft);
    font-size: 1.02rem;
    max-width: 58ch;   /* 글줄이 너무 짧게 끊기지 않도록 */
    margin: 0;
}

section { margin-top: 56px; }
section > h2 {
    font-weight: 700;
    font-size: 1.35rem;
    margin: 0 0 6px;
}
section > h2 + .sub {
    color: var(--ink-soft);
    font-size: 0.92rem;
    margin: 0 0 20px;
    max-width: 58ch;
}

/* ---------- 카드 ---------- */

.card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 24px;
}
.card h3 {
    font-weight: 700;
    font-size: 1.02rem;
    margin: 0 0 8px;
}
.card p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; }

.feature-icon {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    background: var(--sage);
    color: var(--primary);
    margin-bottom: 14px;
}
.feature-icon svg { width: 20px; height: 20px; }

/* ---------- 인터뷰 카드 ---------- */

.avatar-circle {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.95rem;
    flex-shrink: 0;
}
.interview-head {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
}
.interview-head .name { margin: 0; font-weight: 700; font-size: 0.98rem; }
.interview-head .tag { margin: 2px 0 0; color: var(--ink-soft); font-size: 0.84rem; }
.interview-cols {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--line);
}
.interview-cols h4 {
    margin: 0 0 4px;
    font-size: 0.86rem;
    font-weight: 700;
    color: var(--primary);
}
.interview-cols p { margin: 0; font-size: 0.9rem; color: var(--ink-soft); }
@media (max-width: 560px) {
    .interview-cols { grid-template-columns: 1fr; }
}

/* ---------- 추이 배너 ---------- */

.trend-banner {
    position: relative;
    background-color: var(--sage);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='44' height='38' viewBox='0 0 44 38'%3E%3Cpolygon points='22,0 44,11 44,29 22,38 0,29 0,11' fill='none' stroke='%232E4B32' stroke-opacity='0.15' stroke-width='1.2'/%3E%3C/svg%3E");
    border-radius: var(--radius-lg);
    padding: 40px 36px;
    overflow: hidden;
}
.trend-banner .trend-chart {
    width: min(320px, 55%);
    height: auto;
    float: right;
    margin: 0 0 16px 20px;
}
.trend-banner p {
    margin: 0;
    max-width: 46ch;
    line-height: 1.8;
}
@media (max-width: 620px) {
    .trend-banner .trend-chart { float: none; width: 100%; margin: 0 0 16px; }
}

.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 16px;
}
.interview-grid { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 640px) {
    .interview-grid { grid-template-columns: 1fr; }
}

/* ---------- 버튼 ---------- */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 26px;
    border: 1px solid transparent;
    border-radius: 999px;
    font-family: inherit;
    font-weight: 500;
    font-size: 0.98rem;
    cursor: pointer;
    text-decoration: none;
    background: var(--primary);
    color: #fff;
}
.btn:hover { background: var(--primary-hover); }
.btn.ghost {
    background: transparent;
    color: var(--ink);
    border-color: var(--line);
}
.btn.ghost:hover { background: var(--sage); }
.btn:disabled {
    background: var(--line);
    color: #9a9c90;
    cursor: default;
}
.btn-row { display: flex; gap: 10px; flex-wrap: wrap; }

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

/* ---------- 수치 ---------- */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
}
.stat {
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 20px 22px;
}
.stat .label {
    color: var(--ink-soft);
    font-size: 0.88rem;
    margin: 0 0 4px;
}
.stat .value {
    font-weight: 700;
    font-size: 1.7rem;
    margin: 0;
    line-height: 1.3;
}
.stat .note { color: var(--ink-soft); font-size: 0.82rem; margin: 4px 0 0; }

.rows { border-top: 1px solid var(--line); }
.rows .row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    padding: 13px 0;
    border-bottom: 1px solid var(--line);
    font-size: 0.95rem;
}
.rows .row span:last-child { font-weight: 500; }

/* ---------- 상태 배지 ---------- */

.badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    border-radius: 999px;
    background: var(--sage);
    color: var(--ink);
    font-size: 0.92rem;
    font-weight: 500;
}
.badge::before {
    content: '';
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--ink-soft);
}
.badge.good { background: var(--sage); }
.badge.good::before { background: var(--good); }
.badge.bad { background: var(--bad-soft); }
.badge.bad::before { background: var(--bad); }

/* ---------- 설정 ---------- */

.settings {
    display: flex;
    gap: 12px 28px;
    flex-wrap: wrap;
    background: var(--sage);
    border-radius: var(--radius);
    padding: 16px 22px;
    font-size: 0.94rem;
}
.settings select {
    font-family: inherit;
    font-size: 0.94rem;
    font-weight: 500;
    padding: 5px 10px;
    border: 1px solid var(--sage-deep);
    border-radius: 8px;
    background: var(--surface);
    color: var(--primary);
}

/* ---------- 타임라인 ---------- */

.tl-head {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 14px;
}
.tl-head h2 { margin: 0; }
.tl-toggle {
    display: inline-flex;
    background: var(--sage);
    border-radius: 999px;
    padding: 3px;
}
.tl-toggle button {
    border: none;
    cursor: pointer;
    font-family: inherit;
    font-size: 0.88rem;
    padding: 5px 16px;
    border-radius: 999px;
    background: transparent;
    color: var(--ink-soft);
}
.tl-toggle button.active { background: var(--surface); color: var(--primary); font-weight: 500; }

#timeline { width: 100%; display: block; }

.tl-row {
    display: flex;
    align-items: center;
    padding: 13px 20px;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--line);
    margin-top: 8px;
}
.tl-dot { width: 10px; height: 10px; border-radius: 50%; margin-right: 12px; }
.tl-value { margin-left: auto; font-weight: 500; font-size: 1.05rem; }

/* ---------- 웹캠 ---------- */

.cam-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}
.cam-frame {
    position: relative;
    width: 100%;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius);
    border: 3px solid var(--line);
    background: var(--primary);
    overflow: hidden;
}
.cam-frame.good { border-color: var(--good); }
.cam-frame.bad { border-color: var(--bad); }
.cam-frame canvas {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
}
.cam-placeholder {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.6);
    text-align: center;
    padding: 24px;
}
.cam-placeholder svg { width: 40px; height: 40px; }
.cam-placeholder p { margin: 0; font-size: 0.92rem; max-width: 24ch; }
#label-container {
    margin-top: 10px;
    font-size: 0.8rem;
    color: #9a9c90;
}
@media (max-width: 760px) {
    .cam-wrap { grid-template-columns: 1fr; }
}

/* ---------- 알림 오버레이 ---------- */

#alert-overlay {
    position: fixed;
    inset: 0;
    background: rgba(36, 48, 31, 0.55);
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: 3000;
}
#alert-overlay.show { display: flex; }
.alert-box {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: 34px 40px;
    max-width: 420px;
    text-align: center;
    border-top: 6px solid var(--bad);
}
.alert-box h2 { margin: 0 0 10px; font-size: 1.4rem; color: var(--bad); font-weight: 700; }
.alert-box p { margin: 0 0 6px; color: var(--ink-soft); }
.alert-box .hint { font-size: 0.86rem; margin-bottom: 20px; }

/* ---------- 푸터 ---------- */

.site-footer {
    border-top: 1px solid var(--line);
    padding: 16px 24px;
    color: var(--ink-soft);
    font-size: 0.78rem;
}
.site-footer .inner {
    max-width: var(--shell);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
}

/* ---------- 좁은 화면 ---------- */

@media (max-width: 760px) {
    .site-header .inner {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
        padding: 12px 18px;
    }
    .site-nav { width: 100%; overflow-x: auto; }
    .site-nav ul { flex-wrap: nowrap; }
    .site-nav a { padding: 6px 13px; font-size: 0.9rem; white-space: nowrap; }
    .page { padding: 36px 18px 60px; }
    section { margin-top: 40px; }
}

@media (prefers-reduced-motion: reduce) {
    * { transition: none !important; }
}