/* ── Imports ─────────────────────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&family=DM+Mono:wght@400;500&display=swap');

/* ── Variables ───────────────────────────────────────────────────────────── */
:root {
  --bg: #dce2ea;
  --bg2: #e8ecf2;
  --surface: rgba(255,255,255,0.62);
  --surface-hover: rgba(255,255,255,0.82);
  --border: rgba(255,255,255,0.7);
  --border-dark: rgba(0,0,0,0.1);
  --text: #1a2332;
  --text-muted: #5a6a7e;
  --blue: #1a56d4;
  --blue-dark: #1243a8;
  --blue-light: #e8f0fd;
  --green: #16a34a;
  --red: #dc2626;
  --shadow: 0 2px 12px rgba(0,0,0,0.08), 0 1px 3px rgba(0,0,0,0.06);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.12), 0 2px 8px rgba(0,0,0,0.08);
  --radius: 12px;
  --radius-sm: 8px;
}

/* ── Reset ───────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 15px; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  background-image:
    radial-gradient(ellipse at 20% 20%, rgba(180,200,240,0.6) 0%, transparent 60%),
    radial-gradient(ellipse at 80% 80%, rgba(200,210,230,0.5) 0%, transparent 60%),
    radial-gradient(ellipse at 50% 50%, rgba(220,230,245,0.3) 0%, transparent 80%);
}

/* ── Header / Nav ────────────────────────────────────────────────────────── */
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 32px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 0 var(--border-dark), var(--shadow);
}
.header-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.header-logo img { height: 28px; }
.logo-text {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.02em;
}
.header-nav {
  display: flex;
  align-items: center;
  gap: 6px;
}
.header-user {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-right: 12px;
  font-weight: 500;
}

/* ── Buttons ─────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 16px;
  border-radius: var(--radius-sm);
  font-family: inherit;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  border: 1px solid transparent;
  transition: all 0.15s ease;
  line-height: 1;
}
.btn-primary {
  background: var(--blue);
  color: white;
  border-color: var(--blue-dark);
  box-shadow: 0 1px 3px rgba(26,86,212,0.3);
}
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-1px); box-shadow: 0 3px 8px rgba(26,86,212,0.35); }
.btn-ghost {
  background: var(--surface);
  color: var(--text-muted);
  border-color: var(--border-dark);
}
.btn-ghost:hover { background: var(--surface-hover); color: var(--text); }
.btn-danger {
  background: #fef2f2;
  color: var(--red);
  border-color: #fecaca;
}
.btn-danger:hover { background: #fee2e2; }
.btn-sm { padding: 5px 10px; font-size: 0.8rem; }

/* ── Layout ──────────────────────────────────────────────────────────────── */
.page {
  max-width: 860px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}
.page-wide {
  max-width: 1100px;
  margin: 0 auto;
  padding: 40px 24px 80px;
}

/* ── Breadcrumb ──────────────────────────────────────────────────────────── */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-bottom: 28px;
  font-size: 0.85rem;
  color: var(--text-muted);
  flex-wrap: wrap;
}
.breadcrumb a { color: var(--blue); text-decoration: none; font-weight: 500; }
.breadcrumb a:hover { text-decoration: underline; }
.breadcrumb-sep { color: var(--text-muted); opacity: 0.4; }

/* ── Page Header ─────────────────────────────────────────────────────────── */
.page-header {
  margin-bottom: 28px;
}
.page-title {
  font-size: 1.7rem;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 4px;
}
.page-subtitle {
  font-size: 0.9rem;
  color: var(--text-muted);
}

/* ── Search Bar ──────────────────────────────────────────────────────────── */
.search-bar {
  display: flex;
  gap: 8px;
  margin-bottom: 32px;
}
.search-input {
  flex: 1;
  padding: 10px 16px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  background: var(--surface);
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: all 0.15s;
  backdrop-filter: blur(10px);
}
.search-input:focus {
  border-color: var(--blue);
  background: rgba(255,255,255,0.9);
  box-shadow: 0 0 0 3px rgba(26,86,212,0.1);
}
.search-input::placeholder { color: var(--text-muted); opacity: 0.7; }

/* ── Grid Navigation ─────────────────────────────────────────────────────── */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 10px;
  margin-bottom: 32px;
}
.nav-grid.years { grid-template-columns: repeat(auto-fill, minmax(120px, 1fr)); }
.nav-grid.months { grid-template-columns: repeat(auto-fill, minmax(90px, 1fr)); }

.nav-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 18px 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  color: var(--text);
  transition: all 0.18s ease;
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  gap: 6px;
}
.nav-card:hover {
  background: var(--surface-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(26,86,212,0.25);
}
.nav-card-icon {
  font-size: 1.4rem;
  line-height: 1;
}
.nav-card-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--blue);
  letter-spacing: 0.02em;
}
.nav-card-sublabel {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 400;
}

/* ── File Table ──────────────────────────────────────────────────────────── */
.file-table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  backdrop-filter: blur(12px);
}
.file-table {
  width: 100%;
  border-collapse: collapse;
}
.file-table th {
  padding: 11px 16px;
  text-align: left;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  background: rgba(0,0,0,0.02);
  border-bottom: 1px solid var(--border-dark);
}
.file-table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(0,0,0,0.05);
  vertical-align: middle;
  font-size: 0.875rem;
}
.file-table tr:last-child td { border-bottom: none; }
.file-table tr:hover td { background: rgba(255,255,255,0.5); }

.badge {
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 99px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.badge-in { background: #dcfce7; color: #15803d; }
.badge-out { background: #dbeafe; color: #1d4ed8; }
.badge-unknown { background: #f3f4f6; color: #6b7280; }

.phone-num {
  font-family: 'DM Mono', monospace;
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ── Audio Player ────────────────────────────────────────────────────────── */
.audio-player-wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  min-width: 260px;
}
.audio-player-wrap audio {
  flex: 1;
  height: 32px;
  min-width: 0;
  accent-color: var(--blue);
}
audio::-webkit-media-controls-panel { background: #e8f0fd; }

/* ── Empty State ─────────────────────────────────────────────────────────── */
.empty {
  text-align: center;
  padding: 60px 32px;
  color: var(--text-muted);
}
.empty-icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.4; }
.empty-title { font-size: 1.1rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.empty-desc { font-size: 0.875rem; }

/* ── Login ───────────────────────────────────────────────────────────────── */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}
.login-card {
  width: 100%;
  max-width: 460px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 40px;
  box-shadow: var(--shadow-lg);
  backdrop-filter: blur(20px);
}
.login-logo {
  text-align: center;
  margin-bottom: 28px;
}
.login-logo img { height: 36px; }
.login-title {
  font-size: 1.4rem;
  font-weight: 600;
  color: var(--text);
  text-align: center;
  margin-bottom: 6px;
  letter-spacing: -0.02em;
}
.login-subtitle {
  font-size: 0.875rem;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 28px;
}
.form-group { margin-bottom: 16px; }
.form-label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 6px;
}
.form-input {
  width: 100%;
  padding: 10px 14px;
  border: 1px solid var(--border-dark);
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.8);
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  outline: none;
  transition: all 0.15s;
}
.form-input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(26,86,212,0.12);
  background: white;
}
.btn-block { width: 100%; justify-content: center; padding: 11px; font-size: 0.95rem; }
.alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  margin-bottom: 16px;
}
.alert-error { background: #fef2f2; color: var(--red); border: 1px solid #fecaca; }
.alert-success { background: #f0fdf4; color: var(--green); border: 1px solid #bbf7d0; }

/* ── Admin Panel ─────────────────────────────────────────────────────────── */
.admin-tabs {
  display: flex;
  gap: 4px;
  border-bottom: 1px solid var(--border-dark);
  margin-bottom: 28px;
}
.admin-tab {
  padding: 10px 18px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  cursor: pointer;
  border-radius: var(--radius-sm) var(--radius-sm) 0 0;
  border: 1px solid transparent;
  border-bottom: none;
  background: none;
  font-family: inherit;
  transition: all 0.15s;
  position: relative;
  bottom: -1px;
}
.admin-tab.active {
  color: var(--blue);
  background: var(--surface);
  border-color: var(--border-dark);
  border-bottom-color: var(--surface);
}
.admin-tab:hover:not(.active) { background: rgba(255,255,255,0.4); }

.tab-content { display: none; }
.tab-content.active { display: block; }

.user-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 12px;
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow);
}
.user-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}
.user-info-name {
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
}
.user-info-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-family: 'DM Mono', monospace;
}
.user-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px 16px;
  font-size: 0.8rem;
  color: var(--text-muted);
}
.user-detail-item { display: flex; flex-direction: column; gap: 2px; }
.user-detail-label { font-size: 0.7rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.05em; opacity: 0.6; }
.user-detail-value { font-family: 'DM Mono', monospace; font-size: 0.78rem; color: var(--text); word-break: break-all; }

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 16px;
}
.form-grid .form-group { margin-bottom: 0; }
.form-grid .full-width { grid-column: 1 / -1; }

.section-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 12px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--border-dark);
}

details summary {
  cursor: pointer;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--blue);
  list-style: none;
  display: flex;
  align-items: center;
  gap: 6px;
  user-select: none;
}
details summary::-webkit-details-marker { display: none; }
details[open] summary { margin-bottom: 16px; }
details summary::before { content: '▶'; font-size: 0.7rem; transition: transform 0.15s; }
details[open] summary::before { transform: rotate(90deg); }

/* ── Footer ──────────────────────────────────────────────────────────────── */
.footer {
  text-align: center;
  padding: 20px;
  font-size: 0.78rem;
  color: var(--text-muted);
  opacity: 0.7;
}

/* ── Responsive ──────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
  .header { padding: 12px 16px; }
  .page, .page-wide { padding: 24px 16px 60px; }
  .file-table th:nth-child(3),
  .file-table td:nth-child(3) { display: none; }
  .form-grid { grid-template-columns: 1fr; }
  .audio-player-wrap { min-width: 160px; }
}