/* ============================================================
   autoroster — global styles
   ============================================================ */

:root {
  --clr-bg: #f7f8fa;
  --clr-surface: #ffffff;
  --clr-border: #e2e5ea;
  --clr-text: #1a1d23;
  --clr-muted: #6b7280;
  --clr-primary: #2563eb;
  --clr-primary-hover: #1d4ed8;
  --clr-danger: #dc2626;
  --clr-success: #16a34a;
  --clr-warning: #d97706;

  /* Shift colours */
  --clr-shift-a: #dbeafe;   /* blue — Day */
  --clr-shift-a-text: #1e40af;
  --clr-shift-n: #ede9fe;   /* purple — Night */
  --clr-shift-n-text: #5b21b6;
  --clr-shift-p: #fef3c7;   /* amber — Afternoon */
  --clr-shift-p-text: #92400e;

  --radius: 10px;
  --shadow: 0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,.1);
}

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

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--clr-text);
  background: var(--clr-bg);
}

a { color: var(--clr-primary); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ---- Header ---- */
.site-header {
  background: var(--clr-surface);
  border-bottom: 1px solid var(--clr-border);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 10;
}
.header-inner {
  max-width: 960px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 56px;
}
.logo {
  font-weight: 700;
  font-size: 18px;
  color: var(--clr-text);
  text-decoration: none;
  letter-spacing: -0.3px;
}
.header-user {
  display: flex;
  align-items: center;
  gap: 10px;
}
.avatar {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  object-fit: cover;
}
.user-name {
  font-size: 14px;
  color: var(--clr-muted);
}

/* ---- Alerts ---- */
.alert {
  border-radius: var(--radius);
  padding: 12px 16px;
  margin-bottom: 16px;
  font-size: 14px;
}
.alert-error   { background: #fee2e2; color: var(--clr-danger); border: 1px solid #fca5a5; }
.alert-success { background: #dcfce7; color: var(--clr-success); border: 1px solid #86efac; }
.alert-info    { background: #dbeafe; color: var(--clr-primary); border: 1px solid #93c5fd; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 500;
  cursor: pointer;
  border: none;
  text-decoration: none;
  transition: background 0.15s, opacity 0.15s;
}
.btn:hover { text-decoration: none; }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

.btn-primary {
  background: var(--clr-primary);
  color: #fff;
}
.btn-primary:hover:not(:disabled) { background: var(--clr-primary-hover); }

.btn-secondary {
  background: var(--clr-surface);
  color: var(--clr-text);
  border: 1px solid var(--clr-border);
}
.btn-secondary:hover { background: var(--clr-bg); }

.btn-ghost {
  background: transparent;
  color: var(--clr-muted);
}
.btn-ghost:hover { color: var(--clr-text); background: var(--clr-bg); }

.btn-sm { padding: 6px 12px; font-size: 13px; }

.btn-google {
  background: #fff;
  color: #3c4043;
  border: 1px solid #dadce0;
  width: 100%;
  justify-content: center;
  font-size: 15px;
}
.btn-google:hover { background: #f8f9fa; }

.btn-apple {
  background: #000;
  color: #fff;
  width: 100%;
  justify-content: center;
  font-size: 15px;
}
.btn-apple:hover { background: #222; }

/* ---- Card ---- */
.card {
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: var(--shadow);
}

/* ---- Layout ---- */
.main-content {
  max-width: 960px;
  margin: 0 auto;
  padding: 32px 24px 64px;
}

.page-container { max-width: 780px; }
.page-container-narrow { max-width: 520px; }

.page-header { margin-bottom: 24px; }
.page-header h1 { margin: 0 0 6px; font-size: 24px; font-weight: 700; }
.page-header p { margin: 0; color: var(--clr-muted); }

/* ---- Auth page ---- */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 80vh;
}
.auth-card {
  width: 100%;
  max-width: 400px;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: 14px;
  padding: 40px 36px;
  box-shadow: var(--shadow-md);
  text-align: center;
}
.auth-logo {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
}
.auth-tagline {
  color: var(--clr-muted);
  font-size: 14px;
  margin-bottom: 28px;
}
.auth-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 20px;
}
.auth-note {
  font-size: 13px;
  color: var(--clr-muted);
  line-height: 1.5;
}
.auth-footer {
  margin: 16px 0 0;
  font-size: 12px;
  color: var(--clr-muted);
}

/* ---- Upload form ---- */
.upload-form { display: flex; flex-direction: column; gap: 20px; }

.drop-zone {
  border: 2px dashed var(--clr-border);
  border-radius: var(--radius);
  background: var(--clr-bg);
  transition: border-color 0.2s, background 0.2s;
  cursor: pointer;
  position: relative;
}
.drop-zone.drag-over {
  border-color: var(--clr-primary);
  background: #eff6ff;
}
.drop-zone-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 48px 24px;
  color: var(--clr-muted);
}
.drop-zone-inner svg { margin-bottom: 12px; }
.drop-label { font-weight: 500; margin: 0 0 4px; color: var(--clr-text); }
.drop-sub { margin: 0 0 12px; font-size: 13px; }
.drop-filename { margin: 10px 0 0; font-size: 13px; font-weight: 500; color: var(--clr-primary); }

.drop-preview {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 20px;
  gap: 12px;
}
.drop-preview img {
  max-height: 240px;
  max-width: 100%;
  border-radius: 6px;
  box-shadow: var(--shadow);
}
.remove-btn { color: var(--clr-danger); }

/* ---- Hint section ---- */
.hint-section summary {
  cursor: pointer;
  font-size: 14px;
  color: var(--clr-muted);
  user-select: none;
}
.hint-text { font-size: 13px; color: var(--clr-muted); margin: 8px 0 12px; }
.hint-fields { display: flex; gap: 16px; }

/* ---- Form elements ---- */
.field-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 14px;
  font-weight: 500;
}
.input, .select {
  padding: 9px 12px;
  border: 1px solid var(--clr-border);
  border-radius: 7px;
  font-size: 15px;
  width: 100%;
  background: var(--clr-surface);
  color: var(--clr-text);
  transition: border-color 0.15s, box-shadow 0.15s;
}
.input:focus, .select:focus {
  outline: none;
  border-color: var(--clr-primary);
  box-shadow: 0 0 0 3px rgba(37,99,235,.15);
}
.input-sm { padding: 6px 10px; font-size: 14px; width: 120px; }

/* ---- Preview page ---- */
.calendar-selector {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.events-card { padding: 0; overflow: hidden; margin-bottom: 20px; }

.events-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}
.events-table th {
  text-align: left;
  padding: 12px 16px;
  background: var(--clr-bg);
  border-bottom: 1px solid var(--clr-border);
  font-weight: 600;
  color: var(--clr-muted);
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.events-table td {
  padding: 11px 16px;
  border-bottom: 1px solid var(--clr-border);
  vertical-align: middle;
}
.events-table tr:last-child td { border-bottom: none; }
.events-table tbody tr:hover { background: var(--clr-bg); }

.shift-badge {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 5px;
  font-size: 12px;
  font-weight: 700;
  margin-right: 6px;
}
.shift-badge-a { background: var(--clr-shift-a); color: var(--clr-shift-a-text); }
.shift-badge-n { background: var(--clr-shift-n); color: var(--clr-shift-n-text); }
.shift-badge-p { background: var(--clr-shift-p); color: var(--clr-shift-p-text); }

.action-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

/* ---- Roster thumbnail (preview page) ---- */
.roster-thumbnail {
  padding: 12px;
  margin-bottom: 16px;
  text-align: center;
}
.roster-thumbnail img {
  max-width: 100%;
  max-height: 320px;
  border-radius: 6px;
  display: block;
  margin: 0 auto;
}

/* ---- Confirmation modal ---- */
.modal {
  border: none;
  border-radius: 14px;
  padding: 0;
  box-shadow: 0 8px 40px rgba(0,0,0,.18);
  max-width: 400px;
  width: calc(100% - 48px);
}
.modal::backdrop {
  background: rgba(0,0,0,.45);
}
.modal-box {
  padding: 32px 28px 24px;
}
.modal-title {
  margin: 0 0 10px;
  font-size: 18px;
  font-weight: 700;
}
.modal-message {
  margin: 0 0 24px;
  color: var(--clr-muted);
  font-size: 15px;
  line-height: 1.5;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

/* ---- Danger button variant ---- */
.btn-danger {
  background: var(--clr-danger);
  color: #fff;
}
.btn-danger:hover:not(:disabled) { background: #b91c1c; }

/* ---- Done page ---- */
.done-page {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 48px;
}
.done-icon {
  color: var(--clr-success);
  margin-bottom: 16px;
}
.done-title {
  margin: 0 0 8px;
  font-size: 26px;
  font-weight: 700;
}
.done-sub {
  margin: 0 0 32px;
  color: var(--clr-muted);
  max-width: 340px;
}
.done-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  width: 100%;
  max-width: 300px;
  margin-bottom: 16px;
}
.done-actions form { width: 100%; }
.done-actions .btn { width: 100%; justify-content: center; }
.done-undo-note {
  font-size: 12px;
  color: var(--clr-muted);
  max-width: 300px;
}

/* ---- iCloud connect ---- */
.icloud-steps {
  background: var(--clr-bg);
  border-radius: 8px;
  padding: 16px 20px 16px 36px;
  margin: 0 0 24px;
  font-size: 14px;
  line-height: 1.7;
}
.icloud-form { display: flex; flex-direction: column; gap: 16px; }
.icloud-note {
  font-size: 12px;
  color: var(--clr-muted);
  background: var(--clr-bg);
  padding: 10px 12px;
  border-radius: 7px;
  margin: 0;
}

/* ---- Conflict resolution ---- */
.conflict-card {
  margin-bottom: 16px;
}
.conflict-date {
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 12px;
  color: var(--clr-text);
}
.conflict-options {
  display: flex;
  align-items: stretch;
  gap: 12px;
}
.conflict-option {
  flex: 1;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px;
  border: 2px solid var(--clr-border);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s;
}
.conflict-option input[type="radio"] {
  margin-top: 3px;
  flex-shrink: 0;
  accent-color: var(--clr-primary);
}
.conflict-option-selected {
  border-color: var(--clr-primary);
  background: #eff6ff;
}
.conflict-option-body {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.conflict-option-label {
  font-size: 12px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--clr-muted);
}
.conflict-shift {
  font-size: 14px;
  font-weight: 500;
}
.conflict-times {
  font-size: 13px;
  color: var(--clr-muted);
}
.conflict-vs {
  display: flex;
  align-items: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--clr-muted);
  flex-shrink: 0;
}

/* ---- Responsive ---- */
@media (max-width: 600px) {
  .main-content { padding: 20px 16px 48px; }
  .auth-card { padding: 28px 20px; }
  .action-bar { flex-direction: column-reverse; align-items: stretch; }
  .hint-fields { flex-direction: column; }
}