/* ===== TOPIA OTT - Shared Styles ===== */
:root {
  --primary: #4F46E5;
  --primary-light: #EEF2FF;
  --primary-dark: #3730A3;
  --success: #10B981;
  --success-light: #ECFDF5;
  --warning: #F59E0B;
  --warning-light: #FFFBEB;
  --danger: #EF4444;
  --danger-light: #FEF2F2;
  --gray-50: #F8FAFC;
  --gray-100: #F1F5F9;
  --gray-200: #E2E8F0;
  --gray-300: #CBD5E1;
  --gray-400: #94A3B8;
  --gray-500: #64748B;
  --gray-600: #475569;
  --gray-700: #334155;
  --gray-800: #1E293B;
  --gray-900: #0F172A;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,.1), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 6px rgba(0,0,0,.07), 0 2px 4px rgba(0,0,0,.06);
  --shadow-lg: 0 10px 15px rgba(0,0,0,.1), 0 4px 6px rgba(0,0,0,.05);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; scroll-behavior: smooth; }
body { font-family: 'Pretendard', 'Apple SD Gothic Neo', 'Noto Sans KR', sans-serif;
  background: var(--gray-100); color: var(--gray-800); min-height: 100vh; }

/* ── Typography ── */
h1 { font-size: 1.5rem; font-weight: 700; }
h2 { font-size: 1.25rem; font-weight: 700; }
h3 { font-size: 1.05rem; font-weight: 600; }
p  { line-height: 1.6; }

/* ── Layout ── */
.container { max-width: 1100px; margin: 0 auto; padding: 0 16px; }
.page-wrap  { padding: 24px 16px 80px; }

/* ── Header ── */
.site-header {
  background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 100%);
  color: #fff; padding: 14px 20px; position: sticky; top: 0; z-index: 100;
  box-shadow: var(--shadow-md);
}
.site-header .title { font-size: 1.1rem; font-weight: 800; letter-spacing: -.3px; }
.site-header .subtitle { font-size: .78rem; opacity: .82; margin-top: 1px; }
.site-header .plan-name { font-size: .8rem; background: rgba(255,255,255,.18);
  padding: 2px 10px; border-radius: 20px; margin-top: 4px; display: inline-block; }
.header-row { display: flex; align-items: center; justify-content: space-between; gap: 8px; }

/* ── Cards ── */
.card { background: #fff; border-radius: var(--radius); box-shadow: var(--shadow);
  padding: 20px; margin-bottom: 16px; }
.card-header { display: flex; align-items: center; gap: 8px; margin-bottom: 16px;
  padding-bottom: 12px; border-bottom: 2px solid var(--gray-100); }
.card-header h3 { color: var(--primary); }

/* ── Tabs ── */
.tab-nav { display: flex; gap: 6px; background: var(--gray-200); border-radius: var(--radius);
  padding: 5px; margin-bottom: 20px; flex-wrap: wrap; }
.tab-btn { flex: 1; min-width: 80px; padding: 9px 12px; border: none; cursor: pointer;
  border-radius: var(--radius-sm); font-size: .88rem; font-weight: 600;
  background: transparent; color: var(--gray-500); transition: all .2s; }
.tab-btn.active { background: #fff; color: var(--primary); box-shadow: var(--shadow); }
.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* Week tab variant */
.week-nav { display: flex; gap: 6px; margin-bottom: 16px; }
.week-btn { padding: 8px 18px; border: 2px solid var(--gray-200); border-radius: 30px;
  font-size: .85rem; font-weight: 600; cursor: pointer; background: #fff;
  color: var(--gray-500); transition: all .2s; }
.week-btn.active { border-color: var(--primary); color: var(--primary);
  background: var(--primary-light); }

/* ── Forms ── */
.form-group { margin-bottom: 14px; }
.form-group label { display: block; font-size: .8rem; font-weight: 600;
  color: var(--gray-600); margin-bottom: 5px; }
.form-control { width: 100%; padding: 9px 12px; border: 1.5px solid var(--gray-200);
  border-radius: var(--radius-sm); font-size: .9rem; transition: border-color .2s;
  background: #fff; color: var(--gray-800); }
.form-control:focus { outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(79,70,229,.12); }
select.form-control { cursor: pointer; }
input[type="number"].form-control { -moz-appearance: textfield; }
input[type="number"].form-control::-webkit-inner-spin-button { -webkit-appearance: none; }

.form-row { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 12px; }
.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; }

/* ── Buttons ── */
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 9px 18px;
  border: none; border-radius: var(--radius-sm); font-size: .88rem; font-weight: 600;
  cursor: pointer; transition: all .2s; text-decoration: none; }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-dark); }
.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-danger:hover { background: #DC2626; }
.btn-outline { background: #fff; color: var(--primary); border: 1.5px solid var(--primary); }
.btn-outline:hover { background: var(--primary-light); }
.btn-sm { padding: 5px 12px; font-size: .8rem; }
.btn-xs { padding: 3px 9px; font-size: .75rem; }
.btn-block { width: 100%; justify-content: center; }

/* ── Achievement Radio ── */
.achieve-group { display: flex; gap: 6px; margin-top: 4px; }
.achieve-label { flex: 1; }
.achieve-label input { display: none; }
.achieve-label span { display: flex; align-items: center; justify-content: center;
  padding: 8px 0; border: 2px solid var(--gray-200); border-radius: var(--radius-sm);
  cursor: pointer; font-size: 1.1rem; transition: all .2s; background: #fff; }
.achieve-label input:checked + span[data-v="○"] { border-color: var(--success); background: var(--success-light); }
.achieve-label input:checked + span[data-v="△"] { border-color: var(--warning); background: var(--warning-light); }
.achieve-label input:checked + span[data-v="×"] { border-color: var(--danger); background: var(--danger-light); }

/* ── Timetable ── */
.timetable-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.timetable { border-collapse: collapse; min-width: 620px; width: 100%; font-size: .78rem; }
.timetable th { background: var(--primary); color: #fff; padding: 8px 6px;
  text-align: center; font-weight: 600; }
.timetable .time-cell { background: var(--gray-100); font-weight: 600; text-align: center;
  padding: 4px 8px; color: var(--gray-600); white-space: nowrap; min-width: 52px; }
.timetable td { border: 1px solid var(--gray-200); padding: 2px; }
.timetable td input { width: 100%; border: none; padding: 5px 6px; font-size: .75rem;
  background: transparent; color: var(--gray-700); resize: none; min-height: 36px; }
.timetable td input:focus { outline: none; background: var(--primary-light); border-radius: 4px; }
.timetable .midnight { background: #FFF7ED; }
.midnight-note { text-align: center; font-size: .75rem; color: var(--warning);
  font-style: italic; padding: 4px; }

/* ── Subject Section ── */
.subject-card { border: 1.5px solid var(--gray-200); border-radius: var(--radius-sm);
  margin-bottom: 10px; overflow: hidden; }
.subject-card-header { padding: 10px 14px; display: flex; align-items: center; gap: 8px;
  cursor: pointer; background: var(--gray-50); font-weight: 700; }
.subject-card-header .badge { padding: 2px 10px; border-radius: 20px; font-size: .75rem;
  background: var(--primary); color: #fff; }
.subject-card-body { padding: 14px; }

/* ── Priority ── */
.priority-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 8px; }
.priority-item { display: flex; align-items: center; gap: 8px; }
.priority-num { width: 26px; height: 26px; border-radius: 50%; background: var(--primary);
  color: #fff; font-size: .8rem; font-weight: 700; display: flex; align-items: center;
  justify-content: center; flex-shrink: 0; }

/* ── Badges / Status ── */
.badge { display: inline-flex; align-items: center; padding: 2px 10px; border-radius: 20px;
  font-size: .75rem; font-weight: 600; }
.badge-primary  { background: var(--primary-light); color: var(--primary); }
.badge-success  { background: var(--success-light); color: var(--success); }
.badge-warning  { background: var(--warning-light); color: #B45309; }
.badge-danger   { background: var(--danger-light);  color: var(--danger); }
.badge-gray     { background: var(--gray-100); color: var(--gray-500); }

/* ── Table ── */
.data-table { width: 100%; border-collapse: collapse; font-size: .88rem; }
.data-table th { background: var(--gray-100); padding: 10px 12px; text-align: left;
  font-weight: 600; color: var(--gray-600); border-bottom: 2px solid var(--gray-200); }
.data-table td { padding: 10px 12px; border-bottom: 1px solid var(--gray-100);
  vertical-align: middle; }
.data-table tr:hover td { background: var(--gray-50); }
.data-table-wrap { overflow-x: auto; }

/* ── Modal ── */
.modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,.5);
  z-index: 1000; align-items: center; justify-content: center; padding: 16px; }
.modal-overlay.open { display: flex; }
.modal { background: #fff; border-radius: var(--radius); padding: 24px;
  width: 100%; max-width: 480px; max-height: 90vh; overflow-y: auto;
  box-shadow: var(--shadow-lg); }
.modal-header { display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px; }
.modal-close { background: none; border: none; font-size: 1.3rem; cursor: pointer;
  color: var(--gray-400); padding: 4px; }
.modal-footer { display: flex; gap: 10px; justify-content: flex-end; margin-top: 20px; }

/* ── Login Page ── */
.login-page { min-height: 100vh; display: flex; align-items: center; justify-content: center;
  padding: 20px; background: linear-gradient(135deg, #1E1B4B 0%, var(--primary) 50%, #0EA5E9 100%); }
.login-box { background: #fff; border-radius: 20px; padding: 36px 28px; width: 100%;
  max-width: 400px; box-shadow: 0 20px 60px rgba(0,0,0,.3); }
.login-logo { text-align: center; margin-bottom: 28px; }
.login-logo .logo-title { font-size: 1.8rem; font-weight: 900; color: var(--primary);
  letter-spacing: -1px; }
.login-logo .logo-sub { font-size: .82rem; color: var(--gray-500); margin-top: 4px; }
.role-tabs { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px;
  background: var(--gray-100); padding: 5px; border-radius: var(--radius); margin-bottom: 20px; }
.role-tab { padding: 10px; text-align: center; cursor: pointer; border-radius: var(--radius-sm);
  font-weight: 600; font-size: .85rem; color: var(--gray-500); transition: all .2s; border: none;
  background: transparent; }
.role-tab.active { background: #fff; color: var(--primary); box-shadow: var(--shadow); }

/* ── Notification ── */
.toast { position: fixed; bottom: 24px; right: 16px; padding: 12px 20px;
  border-radius: var(--radius-sm); color: #fff; font-weight: 600; font-size: .88rem;
  box-shadow: var(--shadow-lg); z-index: 9999; transform: translateY(100px);
  transition: transform .3s; }
.toast.show { transform: translateY(0); }
.toast.success { background: var(--success); }
.toast.error   { background: var(--danger); }
.toast.info    { background: var(--primary); }

/* ── Misc ── */
.divider { height: 1px; background: var(--gray-200); margin: 20px 0; }
.text-center { text-align: center; }
.text-muted { color: var(--gray-400); font-size: .85rem; }
.mt-4 { margin-top: 4px; } .mt-8 { margin-top: 8px; } .mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; } .gap-8 { gap: 8px; }
.flex { display: flex; } .flex-wrap { flex-wrap: wrap; } .items-center { align-items: center; }
.justify-between { justify-content: space-between; } .justify-end { justify-content: flex-end; }

.save-indicator { font-size: .78rem; color: var(--success); font-weight: 600;
  transition: opacity .5s; }

/* ── Responsive ── */
@media (max-width: 640px) {
  .form-row-2 { grid-template-columns: 1fr; }
  .priority-grid { grid-template-columns: 1fr 1fr; }
  .week-nav { gap: 4px; }
  .week-btn { padding: 7px 12px; font-size: .8rem; }
  .card { padding: 14px; }
  .data-table th, .data-table td { padding: 8px; font-size: .82rem; }
}