/* ===========================================================
   AERO MEDICAL — 항공신체검사 예약 시스템
   반응형 (Mobile First)
   =========================================================== */

:root {
  --c-bg: #f4f7fb;
  --c-surface: #ffffff;
  --c-text: #0f172a;
  --c-muted: #5b6b82;
  --c-primary: #0a4d8c;
  --c-primary-dark: #073865;
  --c-primary-light: #e6f0fb;
  --c-accent: #ff7a00;
  --c-success: #16a34a;
  --c-danger: #dc2626;
  --c-warn: #d97706;
  --c-border: #dfe6ef;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 6px 18px rgba(15, 23, 42, 0.08);
  --container: 1180px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo",
    "Malgun Gothic", "맑은 고딕", sans-serif;
  color: var(--c-text);
  background: var(--c-bg);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: var(--c-primary); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; display: block; }
button { font-family: inherit; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 16px;
}

/* ---------- Header / Nav ---------- */
.site-header {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-primary-dark) 100%);
  color: #fff;
  position: sticky; top: 0; z-index: 50;
  box-shadow: var(--shadow-md);
}
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; padding: 12px 0;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  color: #fff; font-weight: 700; font-size: 18px;
}
.brand-logo {
  width: 36px; height: 36px; border-radius: 8px;
  background: rgba(255,255,255,.16);
  display: grid; place-items: center; font-size: 18px;
}
.brand small { font-weight: 400; opacity: .8; font-size: 12px; }
.nav-links { display: flex; gap: 6px; }
.nav-links a {
  color: #fff; padding: 8px 12px; border-radius: 8px;
  font-size: 14px; font-weight: 500;
}
.nav-links a:hover { background: rgba(255,255,255,.12); text-decoration: none; }
.nav-actions { display: flex; gap: 8px; }
.btn-icon {
  background: rgba(255,255,255,.14); border: 0; color: #fff;
  width: 38px; height: 38px; border-radius: 8px; cursor: pointer;
  display: grid; place-items: center; font-size: 16px;
}
.btn-icon:hover { background: rgba(255,255,255,.24); }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, #0a4d8c 0%, #1976d2 60%, #2196f3 100%);
  color: #fff; padding: 36px 0 28px;
}
.hero h1 { font-size: 26px; margin: 0 0 8px; line-height: 1.25; }
.hero p { margin: 0 0 16px; opacity: .92; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 11px 18px; border-radius: 10px; font-weight: 600;
  border: 0; cursor: pointer; font-size: 14px; text-decoration: none;
  transition: transform .05s, box-shadow .15s, background .15s;
}
.btn:hover { transform: translateY(-1px); text-decoration: none; }
.btn-primary { background: var(--c-accent); color: #fff; box-shadow: 0 4px 12px rgba(255,122,0,.35); }
.btn-primary:hover { background: #e96f00; }
.btn-ghost { background: rgba(255,255,255,.16); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.26); }
.btn-outline {
  background: transparent; color: var(--c-primary); border: 1.5px solid var(--c-primary);
}
.btn-outline:hover { background: var(--c-primary-light); }
.btn-block { width: 100%; justify-content: center; }
.btn-sm { padding: 7px 12px; font-size: 13px; }

/* ---------- eSky Banner ---------- */
.esky-banner {
  background: linear-gradient(90deg, #073865 0%, #0a4d8c 50%, #1976d2 100%);
  color: #fff; padding: 16px;
  border-radius: var(--radius); margin: 18px 0;
  display: flex; flex-wrap: wrap; align-items: center; gap: 14px;
  box-shadow: var(--shadow-sm);
}
.esky-banner .badge {
  background: var(--c-accent); color: #fff; padding: 4px 10px;
  border-radius: 999px; font-size: 12px; font-weight: 700;
}
.esky-banner strong { font-size: 16px; }
.esky-banner small { opacity: .9; display: block; margin-top: 2px; }
.esky-banner .btn { margin-left: auto; }

/* ---------- Sections / Cards ---------- */
.section { padding: 28px 0; }
.section-title {
  display: flex; align-items: center; justify-content: space-between;
  gap: 12px; margin: 0 0 14px;
}
.section-title h2 { margin: 0; font-size: 20px; }
.section-title p { margin: 0; color: var(--c-muted); font-size: 13px; }

.grid { display: grid; gap: 14px; }
.grid-hospitals { grid-template-columns: 1fr; }
@media (min-width: 640px) { .grid-hospitals { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 960px) { .grid-hospitals { grid-template-columns: repeat(3, 1fr); } }

.card {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 16px; box-shadow: var(--shadow-sm);
  transition: box-shadow .15s, transform .05s;
}
.card:hover { box-shadow: var(--shadow-md); }
.hospital-card { display: flex; flex-direction: column; }
.hospital-card h3 { margin: 0 0 6px; font-size: 16px; }
.hospital-meta { font-size: 13px; color: var(--c-muted); margin-bottom: 10px; }
.hospital-meta div { margin-bottom: 2px; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 12px; }
.chip {
  background: var(--c-primary-light); color: var(--c-primary);
  padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600;
}
.hospital-card .card-actions { margin-top: auto; display: flex; gap: 8px; }

/* ---------- Filter Bar ---------- */
.filter-bar {
  background: var(--c-surface); border: 1px solid var(--c-border);
  border-radius: var(--radius); padding: 12px; margin-bottom: 14px;
  display: flex; flex-wrap: wrap; gap: 8px; align-items: center;
}
.filter-bar input, .filter-bar select {
  flex: 1; min-width: 160px;
  padding: 9px 12px; border: 1px solid var(--c-border); border-radius: 8px;
  font-size: 14px; background: #fff;
}
.filter-bar input:focus, .filter-bar select:focus {
  outline: none; border-color: var(--c-primary);
  box-shadow: 0 0 0 3px var(--c-primary-light);
}

/* ---------- Drug Search ---------- */
.drug-search { background: var(--c-surface); border-radius: var(--radius); padding: 18px; border: 1px solid var(--c-border); }
.drug-input-wrap { position: relative; }
.drug-input-wrap input {
  width: 100%; padding: 13px 14px; padding-left: 42px;
  border: 1.5px solid var(--c-border); border-radius: 10px; font-size: 15px;
}
.drug-input-wrap input:focus {
  outline: none; border-color: var(--c-primary);
  box-shadow: 0 0 0 4px var(--c-primary-light);
}
.drug-input-wrap::before {
  content: "🔍"; position: absolute; left: 14px; top: 50%; transform: translateY(-50%);
}
.drug-results { margin-top: 14px; display: grid; gap: 8px; }
.drug-item {
  padding: 12px 14px; border: 1px solid var(--c-border); border-radius: 10px;
  background: #fff; display: grid; gap: 4px;
}
.drug-item .row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }
.drug-item .name { font-weight: 700; font-size: 15px; }
.drug-item .ko { color: var(--c-muted); font-size: 13px; }
.drug-item .cat { font-size: 12px; color: var(--c-muted); }
.drug-item .note { font-size: 13px; color: var(--c-text); margin-top: 4px; }
.risk-tag {
  font-size: 11px; padding: 3px 9px; border-radius: 999px; font-weight: 700; white-space: nowrap;
}
.risk-DO_NOT_FLY { background: #fef3c7; color: #b45309; }
.risk-DO_NOT_ISSUE { background: #fee2e2; color: #b91c1c; }
.drug-empty { color: var(--c-muted); text-align: center; padding: 22px; font-size: 14px; }
.drug-hint { font-size: 12px; color: var(--c-muted); margin-top: 6px; }
.drug-disclaimer {
  margin-top: 12px; padding: 10px 12px; background: #fffbeb;
  border: 1px solid #fde68a; color: #92400e; border-radius: 8px; font-size: 12px;
}

/* ---------- Booking ---------- */
.booking-layout { display: grid; gap: 16px; grid-template-columns: 1fr; }
@media (min-width: 900px) { .booking-layout { grid-template-columns: 1.2fr 1fr; } }

.hospital-info { background: var(--c-surface); border-radius: var(--radius); border: 1px solid var(--c-border); padding: 18px; }
.hospital-info h2 { margin: 0 0 6px; }
.hospital-info dl { display: grid; grid-template-columns: 100px 1fr; gap: 6px 12px; font-size: 14px; margin: 12px 0 0; }
.hospital-info dt { color: var(--c-muted); }
.hospital-info dd { margin: 0; }

.date-picker { background: var(--c-surface); border-radius: var(--radius); border: 1px solid var(--c-border); padding: 16px; }
.date-picker label { display: block; font-size: 13px; color: var(--c-muted); margin-bottom: 6px; }
.date-picker input[type=date] {
  width: 100%; padding: 11px; border: 1px solid var(--c-border); border-radius: 8px; font-size: 15px;
}

.time-grid {
  display: grid; gap: 8px; margin-top: 14px;
  grid-template-columns: repeat(auto-fill, minmax(96px, 1fr));
}
.time-slot {
  padding: 12px 6px; text-align: center; border-radius: 8px;
  font-size: 14px; font-weight: 600; cursor: pointer; border: 1.5px solid var(--c-border);
  background: #fff; color: var(--c-text);
  transition: transform .04s, background .15s, border-color .15s;
}
.time-slot small { display: block; font-weight: 500; font-size: 11px; margin-top: 2px; opacity: .8; }
.time-slot.open { background: #ecfdf5; border-color: #86efac; color: #065f46; }
.time-slot.open:hover { background: #d1fae5; transform: translateY(-1px); }
.time-slot.closed { background: #f3f4f6; border-color: #e5e7eb; color: #9ca3af; cursor: not-allowed; }
.time-slot.booked { background: #fee2e2; border-color: #fecaca; color: #991b1b; cursor: not-allowed; }
.time-slot.selected { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }
.time-slot.default { background: #fff; border-style: dashed; color: var(--c-muted); cursor: not-allowed; }

.booking-form { background: var(--c-surface); border-radius: var(--radius); border: 1px solid var(--c-border); padding: 18px; }
.booking-form h3 { margin: 0 0 12px; }
.form-row { display: grid; gap: 6px; margin-bottom: 12px; }
.form-row label { font-size: 13px; color: var(--c-muted); font-weight: 600; }
.form-row input, .form-row select, .form-row textarea {
  padding: 11px; border: 1px solid var(--c-border); border-radius: 8px; font-size: 15px; background: #fff;
}
.form-row input:focus, .form-row select:focus {
  outline: none; border-color: var(--c-primary); box-shadow: 0 0 0 3px var(--c-primary-light);
}
.summary-box {
  background: var(--c-primary-light); border: 1px solid #c8ddf2;
  border-radius: 8px; padding: 12px; margin: 12px 0; font-size: 14px;
}
.summary-box b { color: var(--c-primary); }

/* ---------- Admin ---------- */
.admin-actions { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.legend { display: flex; flex-wrap: wrap; gap: 12px; margin: 12px 0; font-size: 13px; color: var(--c-muted); }
.legend span { display: inline-flex; align-items: center; gap: 6px; }
.legend i { width: 14px; height: 14px; border-radius: 4px; display: inline-block; }
.legend .l-open { background: #86efac; }
.legend .l-closed { background: #e5e7eb; }
.legend .l-booked { background: #fecaca; }
.legend .l-default { background: #fff; border: 1.5px dashed var(--c-border); }

.booking-list { display: grid; gap: 8px; }
.booking-row {
  display: grid; grid-template-columns: 1fr auto; gap: 6px;
  padding: 10px 12px; border: 1px solid var(--c-border); border-radius: 8px; background: #fff;
}
.booking-row small { color: var(--c-muted); }

/* ---------- Banners (universities / association) ---------- */
.partner-section { background: #fff; border-top: 1px solid var(--c-border); padding: 26px 0; }
.partner-title { font-size: 14px; color: var(--c-muted); font-weight: 700; margin: 0 0 12px; letter-spacing: .03em; }
.partner-grid {
  display: grid; gap: 10px;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 520px) { .partner-grid { grid-template-columns: repeat(3, 1fr); } }
@media (min-width: 768px) { .partner-grid { grid-template-columns: repeat(4, 1fr); } }
@media (min-width: 1024px) { .partner-grid { grid-template-columns: repeat(6, 1fr); } }
.partner-card {
  display: flex; align-items: center; justify-content: center;
  text-align: center; padding: 12px 8px;
  border: 1px solid var(--c-border); border-radius: 10px;
  background: #fff; color: var(--c-text); font-weight: 600; font-size: 13px;
  min-height: 56px; transition: border-color .15s, background .15s, transform .04s;
}
.partner-card:hover {
  border-color: var(--c-primary); background: var(--c-primary-light);
  color: var(--c-primary); text-decoration: none; transform: translateY(-1px);
}
.assoc-banner {
  display: flex; align-items: center; gap: 14px; flex-wrap: wrap;
  padding: 16px 18px; background: linear-gradient(135deg, #073865, #0a4d8c);
  color: #fff; border-radius: var(--radius); margin-bottom: 18px;
}
.assoc-banner h3 { margin: 0; font-size: 16px; }
.assoc-banner p { margin: 2px 0 0; opacity: .85; font-size: 13px; }
.assoc-banner .btn { margin-left: auto; }

/* ---------- Footer ---------- */
.footer { background: #0b1220; color: #cbd5e1; padding: 26px 0 32px; margin-top: 24px; }
.footer h4 { color: #fff; font-size: 14px; margin: 0 0 10px; }
.footer-grid { display: grid; gap: 18px; grid-template-columns: 1fr; }
@media (min-width: 768px) { .footer-grid { grid-template-columns: 2fr 1fr 1fr; } }
.footer a { color: #cbd5e1; }
.footer a:hover { color: #fff; }
.footer-bottom { border-top: 1px solid #1f2937; margin-top: 20px; padding-top: 14px; font-size: 12px; color: #94a3b8; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }

/* ---------- Modal ---------- */
.modal {
  position: fixed; inset: 0; background: rgba(15, 23, 42, .55);
  display: none; align-items: center; justify-content: center; z-index: 100; padding: 16px;
}
.modal.is-open { display: flex; }
.modal-content {
  background: #fff; border-radius: var(--radius); max-width: 420px; width: 100%;
  padding: 20px; box-shadow: var(--shadow-md); position: relative;
}
.modal-content h3 { margin: 0 0 12px; }
.modal-close {
  position: absolute; top: 10px; right: 10px; width: 32px; height: 32px;
  border: 0; background: transparent; cursor: pointer; font-size: 20px; color: var(--c-muted);
}
.qr-wrap { display: flex; justify-content: center; padding: 8px 0 12px; }
.qr-wrap img { width: 200px; height: 200px; }
.url-row { display: flex; gap: 6px; }
.url-row input { flex: 1; padding: 9px; border: 1px solid var(--c-border); border-radius: 8px; font-size: 13px; }
.toast {
  position: fixed; bottom: 24px; left: 50%; transform: translateX(-50%);
  background: #0f172a; color: #fff; padding: 10px 16px; border-radius: 8px;
  opacity: 0; pointer-events: none; transition: opacity .2s; z-index: 200; font-size: 13px;
}
.toast.show { opacity: 1; }

/* ---------- Ads / Contact ---------- */
.ads-form { background: #fff; border-radius: var(--radius); border: 1px solid var(--c-border); padding: 18px; }
.ads-form .form-row { margin-bottom: 10px; }
.ads-form textarea { min-height: 110px; resize: vertical; }

/* ---------- Misc ---------- */
.muted { color: var(--c-muted); }
.center { text-align: center; }
.spacer { height: 12px; }
.error { color: var(--c-danger); font-size: 13px; margin-top: 4px; }
.ok { color: var(--c-success); font-size: 13px; margin-top: 4px; }
.tabs { display: flex; gap: 6px; margin-bottom: 12px; flex-wrap: wrap; }
.tab {
  padding: 8px 14px; border: 1px solid var(--c-border); background: #fff;
  border-radius: 999px; font-size: 13px; cursor: pointer; font-weight: 600;
}
.tab.active { background: var(--c-primary); border-color: var(--c-primary); color: #fff; }

@media (max-width: 640px) {
  .hero h1 { font-size: 21px; }
  .esky-banner .btn { margin-left: 0; width: 100%; }
  .nav-links { display: none; }
}