/* ─── Reset & Base ─────────────────────────────────────────────────────────── */

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

:root {
  --bg-primary: #111111;
  --bg-secondary: #1a1a1a;
  --bg-card: #222222;
  --bg-hover: #2a2a2a;
  --bg-input: #2a2a2a;
  --border: #333333;
  --border-light: #444444;
  --text-primary: #f0f0f0;
  --text-secondary: #999999;
  --text-muted: #666666;
  --accent: #4f46e5;
  --accent-hover: #4338ca;
  --danger: #dc2626;
  --success: #059669;
  --warning: #d97706;
  --radius: 8px;
  --radius-sm: 4px;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.5;
  min-height: 100vh;
}

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

/* ─── Layout ───────────────────────────────────────────────────────────────── */

.app-layout {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: 240px;
  background: var(--bg-secondary);
  border-right: 1px solid var(--border);
  padding: 20px 0;
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  bottom: 0;
  z-index: 100;
}

.sidebar-logo {
  padding: 0 20px 20px;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
  margin-bottom: 8px;
}

.sidebar-nav { flex: 1; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 20px;
  color: var(--text-secondary);
  font-size: 14px;
  transition: all 0.15s;
  border-left: 3px solid transparent;
}

.sidebar-nav a:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  text-decoration: none;
}

.sidebar-nav a.active {
  color: var(--text-primary);
  background: var(--bg-hover);
  border-left-color: var(--accent);
}

.sidebar-nav a svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.sidebar-user {
  padding: 12px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-secondary);
}

.sidebar-user a { color: var(--text-muted); font-size: 12px; }

.main-content {
  flex: 1;
  margin-left: 240px;
  padding: 24px 32px;
  min-height: 100vh;
}

/* ─── Cards & Forms ────────────────────────────────────────────────────────── */

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 20px;
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 4px;
}

.page-subtitle {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 24px;
}

input[type="text"],
input[type="email"],
input[type="password"],
select {
  background: var(--bg-input);
  border: 1px solid var(--border);
  color: var(--text-primary);
  border-radius: var(--radius-sm);
  padding: 8px 12px;
  font-size: 14px;
  width: 100%;
  outline: none;
  transition: border-color 0.15s;
}

input:focus, select:focus {
  border-color: var(--accent);
}

label {
  display: block;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 4px;
  font-weight: 500;
}

.form-group {
  margin-bottom: 16px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.15s;
  text-decoration: none;
  color: #fff;
}

.btn-primary {
  background: var(--accent);
  border-color: var(--accent);
}
.btn-primary:hover {
  background: var(--accent-hover);
  text-decoration: none;
}

.btn-danger {
  background: var(--danger);
  border-color: var(--danger);
}
.btn-danger:hover { opacity: 0.9; text-decoration: none; }

.btn-outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text-secondary);
}
.btn-outline:hover {
  background: var(--bg-hover);
  color: var(--text-primary);
  text-decoration: none;
}

.btn-sm { padding: 4px 10px; font-size: 12px; }

.alert {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
}

.alert-error {
  background: rgba(220, 38, 38, 0.15);
  border: 1px solid rgba(220, 38, 38, 0.3);
  color: #fca5a5;
}

.alert-success {
  background: rgba(5, 150, 105, 0.15);
  border: 1px solid rgba(5, 150, 105, 0.3);
  color: #6ee7b7;
}

/* ─── Auth pages ───────────────────────────────────────────────────────────── */

.auth-container {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 400px;
}

.auth-title {
  font-size: 24px;
  font-weight: 700;
  text-align: center;
  margin-bottom: 8px;
}

.auth-subtitle {
  text-align: center;
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 32px;
}

.auth-footer {
  text-align: center;
  margin-top: 20px;
  font-size: 13px;
  color: var(--text-secondary);
}

/* ─── Calendar Grid ────────────────────────────────────────────────────────── */

.calendar-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  flex-wrap: wrap;
  gap: 12px;
}

.calendar-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

.calendar-nav-btn {
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-primary);
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  transition: background 0.15s;
}

.calendar-nav-btn:hover { background: var(--bg-hover); }

.calendar-date-label {
  font-size: 15px;
  font-weight: 600;
  min-width: 180px;
  text-align: center;
}

.calendar-filters {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.member-filter {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.member-chip {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: opacity 0.15s;
  user-select: none;
}

.member-chip.dimmed { opacity: 0.35; }

.member-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.calendar-grid-container {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-card);
}

.calendar-day-headers {
  display: grid;
  grid-template-columns: 60px repeat(7, 1fr);
  border-bottom: 1px solid var(--border);
}

.calendar-day-header {
  padding: 10px 4px;
  text-align: center;
  font-size: 12px;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
}

.calendar-day-header.today {
  color: var(--accent);
}

.calendar-day-header .day-number {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--text-primary);
  margin-top: 2px;
}

.calendar-day-header.today .day-number {
  color: var(--accent);
}

.calendar-tz {
  font-size: 10px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}

.calendar-body {
  display: grid;
  grid-template-columns: 60px repeat(7, 1fr);
  position: relative;
  max-height: calc(100vh - 260px);
  overflow-y: auto;
}

.calendar-time-col {
  border-right: 1px solid var(--border);
}

.calendar-time-slot {
  height: 60px;
  padding: 2px 8px 0;
  font-size: 11px;
  color: var(--text-muted);
  text-align: right;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.calendar-day-col {
  position: relative;
  border-right: 1px solid var(--border);
}

.calendar-day-col:last-child { border-right: none; }

.calendar-hour-cell {
  height: 60px;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.calendar-hour-cell::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 0;
  right: 0;
  border-bottom: 1px solid rgba(51, 51, 51, 0.5);
}

/* Events */
.calendar-event {
  position: absolute;
  left: 2px;
  right: 2px;
  border-radius: 4px;
  padding: 2px 6px;
  font-size: 11px;
  line-height: 1.3;
  overflow: hidden;
  cursor: default;
  z-index: 10;
  min-height: 18px;
  border-left: 3px solid;
}

.calendar-event .event-title {
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.calendar-event .event-time {
  font-size: 10px;
  opacity: 0.8;
  white-space: nowrap;
}

/* All-day events bar */
.allday-bar {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 60px repeat(7, 1fr);
  border-bottom: 1px solid var(--border);
  min-height: 28px;
  background: var(--bg-secondary);
}

.allday-label {
  font-size: 10px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  border-right: 1px solid var(--border);
}

.allday-cell {
  position: relative;
  padding: 2px;
  border-right: 1px solid var(--border);
  min-height: 28px;
}

.allday-cell:last-child { border-right: none; }

.allday-event {
  border-radius: 3px;
  padding: 1px 6px;
  font-size: 11px;
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 1px;
}

/* Current time line */
.current-time-line {
  position: absolute;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--danger);
  z-index: 20;
  pointer-events: none;
}

.current-time-line::before {
  content: '';
  position: absolute;
  left: -4px;
  top: -3px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--danger);
}

/* Loading spinner */
.loading-overlay {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 60px;
  color: var(--text-muted);
  font-size: 14px;
}

.spinner {
  width: 24px;
  height: 24px;
  border: 2px solid var(--border);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-right: 10px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ─── Team list ────────────────────────────────────────────────────────────── */

.team-list {
  list-style: none;
}

.team-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  transition: background 0.15s;
}

.team-list-item:hover { background: var(--bg-hover); }

.team-list-item:last-child { border-bottom: none; }

.member-list {
  list-style: none;
}

.member-list-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
  font-size: 14px;
}

.member-list-item:last-child { border-bottom: none; }

.member-info {
  display: flex;
  flex-direction: column;
}

.member-name { font-weight: 500; }
.member-email { font-size: 12px; color: var(--text-muted); }
.member-role { font-size: 11px; color: var(--accent); text-transform: uppercase; font-weight: 600; }

/* ─── Settings ─────────────────────────────────────────────────────────────── */

.credential-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 12px;
}

.credential-info {
  display: flex;
  align-items: center;
  gap: 12px;
}

.credential-icon {
  width: 36px;
  height: 36px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.credential-icon.google { background: rgba(66, 133, 244, 0.15); color: #4285f4; }
.credential-icon.apple { background: rgba(255, 255, 255, 0.1); color: #fff; }

.credential-detail { font-size: 14px; }
.credential-type { font-weight: 600; }
.credential-count { font-size: 12px; color: var(--text-muted); }

/* ─── Invite link ──────────────────────────────────────────────────────────── */

.invite-link-box {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 6px 10px;
  font-size: 12px;
  color: var(--text-secondary);
  word-break: break-all;
  margin-bottom: 8px;
}

.copy-btn {
  background: var(--accent);
  color: #fff;
  border: none;
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 11px;
  white-space: nowrap;
}

/* ─── Responsive ───────────────────────────────────────────────────────────── */

@media (max-width: 768px) {
  .sidebar { width: 200px; }
  .main-content { margin-left: 200px; padding: 16px; }
}