:root {
  --color-primary:        #1240A8;
  --color-primary-dark:   #0D2F80;
  --color-primary-light:  #EBF0FB;
  --color-accent:         #F59E0B;
  --color-text:           #111827;
  --color-text-muted:     #6B7280;
  --color-border:         #E5E7EB;
  --color-surface:        #F9FAFB;
  --color-white:          #FFFFFF;
  --color-success:        #166534;
  --color-success-bg:     #DCFCE7;
  --color-error:          #991B1B;
  --color-error-bg:       #FEE2E2;

  --font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --radius:      10px;
  --radius-lg:   16px;
  --shadow:      0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:   0 4px 16px rgba(18,64,168,.10);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { font-size: 20px; }

body {
  font-family: var(--font-family);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background: var(--color-surface);
  min-height: 100vh;
}

/* ── Nav ── */
.nav-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 0 1.25rem;
  box-shadow: var(--shadow);
}
.nav-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
}
.nav-logo img {
  height: 48px;
  width: auto;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.nav-link {
  color: var(--color-text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.9rem;
}
.nav-link:hover { color: var(--color-primary); }

/* ── Layout ── */
.main-content {
  max-width: 720px;
  margin: 0 auto;
  padding: 2rem 1.25rem;
}

/* ── Typography ── */
h1 { font-size: 1.7rem;  font-weight: 700; margin-bottom: 0.4rem; line-height: 1.25; }
h2 { font-size: 1.3rem;  font-weight: 600; margin-bottom: 0.4rem; }
p  { margin-bottom: 1rem; color: var(--color-text-muted); }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: 0 1.75rem;
  font-size: 1rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius);
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, box-shadow 0.15s;
  width: 100%;
  letter-spacing: 0.01em;
}
.btn-primary {
  background: var(--color-primary);
  color: var(--color-white);
  box-shadow: 0 2px 8px rgba(18,64,168,.25);
}
.btn-primary:hover {
  background: var(--color-primary-dark);
  box-shadow: 0 4px 12px rgba(18,64,168,.35);
}
.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-secondary:hover { background: var(--color-primary-light); }
.btn-danger {
  background: var(--color-white);
  color: var(--color-error);
  border: 2px solid var(--color-error);
}
.btn-danger:hover { background: var(--color-error-bg); }
.btn-ghost {
  background: none;
  border: none;
  color: var(--color-text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0.4rem 0;
  transition: color .15s;
}
.btn-ghost:hover { color: var(--color-text); }
.btn-inline {
  width: auto;
  min-height: 48px;
  padding: 0 1.25rem;
}

/* ── Forms ── */
.form-group { margin-bottom: 1.5rem; }
.form-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.4rem;
  color: var(--color-text);
  font-size: 0.95rem;
}
.form-input,
.form-select,
.form-textarea {
  display: block;
  width: 100%;
  min-height: 52px;
  padding: 0 1rem;
  font-size: 1rem;
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  transition: border-color .15s, box-shadow .15s;
  line-height: 1.6;
}
.form-textarea {
  padding: 0.75rem 1rem;
  min-height: 120px;
  resize: vertical;
}
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(18,64,168,.12);
}
.form-error {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-top: 0.4rem;
  color: var(--color-error);
  font-size: 0.85rem;
}
.form-hint {
  margin-top: 0.4rem;
  color: var(--color-text-muted);
  font-size: 0.85rem;
}

/* ── Toggle buttons ── */
.toggle-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.toggle-btn {
  min-height: 52px;
  padding: 0 1.25rem;
  font-size: 0.95rem;
  font-weight: 500;
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  transition: all .15s;
  color: var(--color-text-muted);
}
.toggle-btn.active {
  background: var(--color-primary-light);
  border-color: var(--color-primary);
  color: var(--color-primary);
  font-weight: 600;
}
.toggle-btn input { display: none; }

/* ── Cards ── */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  transition: box-shadow .15s;
}
.card:hover { box-shadow: var(--shadow-md); }
.card-title {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}
.card-time {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 1rem;
}
.card-section-label {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.3rem;
  margin-top: 0.75rem;
}
.card-phone {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}
.card-meta {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.card-notify-info {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-top: 0.25rem;
}
.card-notify-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}
.card-notify-label {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  min-width: 4.5rem;
  flex-shrink: 0;
}
.card-notify-value {
  font-size: 1rem;
  color: var(--color-text);
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  align-items: center;
}
.card-actions {
  display: flex;
  gap: 0.75rem;
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--color-border);
}
.badge {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-day {
  background: var(--color-primary-light);
  color: var(--color-primary);
}
.badge-channel {
  background: #F3F4F6;
  color: #374151;
  border: 1px solid var(--color-border);
}

/* ── Alerts ── */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.9rem 1.1rem;
  border-radius: var(--radius);
  margin-bottom: 1.5rem;
  font-size: 0.9rem;
}
.alert-success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid #bbf7d0;
}
.alert-error {
  background: var(--color-error-bg);
  color: var(--color-error);
  border: 1px solid #fecaca;
}

/* ── Page header ── */
.page-header { margin-bottom: 1.75rem; }
.page-header-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ── Empty state ── */
.empty-state {
  text-align: center;
  padding: 4rem 1rem;
}
.empty-state p { font-size: 1rem; margin-bottom: 1.5rem; }

/* ── Auth / Login ── */
.auth-page {
  min-height: calc(100vh - 64px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background: var(--color-surface);
}
.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem 2.25rem;
  box-shadow: var(--shadow-md);
}
.auth-brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}
.auth-mark {
  display: block;
  width: 72px;
  height: 72px;
}
.auth-brand-name {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
}
.auth-tagline {
  text-align: center;
  margin-bottom: 2rem;
}
.auth-tagline h1 {
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.4rem;
}
.auth-tagline p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin: 0;
}

/* ── Misc ── */
.actions-row {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}
.confirm-section {
  background: var(--color-error-bg);
  border: 1px solid #fecaca;
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  margin-top: 2rem;
}
.confirm-section h2 { color: var(--color-error); margin-bottom: 0.4rem; }

.detail-row {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.detail-row:last-child { border-bottom: none; }
.detail-label { font-size: 0.8rem; font-weight: 600; color: var(--color-text-muted); text-transform: uppercase; letter-spacing: .05em; }

@media (max-width: 480px) {
  html { font-size: 18px; }
  .nav-inner {
    height: auto;
    flex-wrap: wrap;
    padding: 0.5rem 0;
    gap: 0;
  }
  .nav-logo { padding: 0.25rem 0; }
  .nav-actions {
    width: 100%;
    justify-content: space-around;
    border-top: 1px solid var(--color-border);
    padding-top: 0.5rem;
    padding-bottom: 0.25rem;
  }
  .auth-card { padding: 1.75rem 1.25rem; }
  .auth-page { align-items: flex-start; padding-top: 2rem; }
}