/* ============================================================
   TimeTracker — App Stylesheet
   Design: Industrial Utilitarian · Dark Sidebar · Mono accents
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Mono:wght@400;600&family=IBM+Plex+Sans:wght@300;400;500;600&display=swap');

/* ── Variables ─────────────────────────────────────────────── */
:root {
  --tt-bg:           #0f1117;
  --tt-surface:      #181c26;
  --tt-surface-2:    #1e2333;
  --tt-border:       #313a55;
  --tt-accent:       #6480f7;
  --tt-accent-dim:   #4f6df5;
  --tt-success:      #34d470;
  --tt-danger:       #f56565;
  --tt-warning:      #fbbf24;
  --tt-text:         #f0f4ff;
  --tt-text-sub:     #a0aec8;
  --tt-mono:         'IBM Plex Mono', monospace;
  --tt-sans:         'IBM Plex Sans', sans-serif;
  --tt-radius:       8px;
  --tt-radius-lg:    12px;
  --tt-shadow:       0 4px 24px rgba(0,0,0,.45);
  --tt-nav-h:        60px;
}

/* ── Light Mode ─────────────────────────────────────────────── */
[data-bs-theme="light"] {
  --tt-bg:           #f0f2f8;
  --tt-surface:      #ffffff;
  --tt-surface-2:    #e8ecf5;
  --tt-border:       #c8d0e8;
  --tt-accent:       #4055d4;
  --tt-accent-dim:   #2e3fb8;
  --tt-success:      #16a34a;
  --tt-danger:       #dc2626;
  --tt-warning:      #d97706;
  --tt-text:         #0f1320;
  --tt-text-sub:     #4a5478;
  --tt-shadow:       0 4px 24px rgba(0,0,0,.10);
}

[data-bs-theme="light"] .tt-modal .btn-close { filter: none; }
[data-bs-theme="light"] ::-webkit-scrollbar-track { background: var(--tt-surface-2); }
[data-bs-theme="light"] .tt-label,
[data-bs-theme="light"] .tt-label-sm { color: #2a3255; }
[data-bs-theme="light"] .tt-table thead th { color: #2a3255; }

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

html, body {
  height: 100%;
  margin: 0;
}

body {
  font-family: var(--tt-sans);
  background: var(--tt-bg);
  color: var(--tt-text);
  font-size: 14px;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: var(--tt-accent); text-decoration: none; }
a:hover { color: #7a94ff; }

/* ── Navbar ─────────────────────────────────────────────────── */
.tt-navbar {
  height: var(--tt-nav-h);
  background: var(--tt-surface);
  border-bottom: 1px solid var(--tt-border);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(8px);
}

.tt-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--tt-mono);
  font-weight: 600;
  font-size: 1rem;
  color: var(--tt-text) !important;
  letter-spacing: 0.02em;
}

.tt-brand-icon {
  width: 32px; height: 32px;
  background: var(--tt-accent);
  border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-size: 16px;
  color: #fff;
  flex-shrink: 0;
}

.tt-navbar .nav-link {
  color: var(--tt-text-sub) !important;
  font-size: 13px;
  font-weight: 500;
  padding: 6px 14px !important;
  border-radius: 6px;
  transition: all .15s;
}
.tt-navbar .nav-link:hover,
.tt-navbar .nav-link.active {
  color: var(--tt-text) !important;
  background: var(--tt-surface-2);
}

.tt-user-badge {
  font-size: 12px;
  color: var(--tt-text-sub);
  font-family: var(--tt-mono);
}

.tt-btn-logout {
  font-size: 12px;
  background: transparent;
  border: 1px solid var(--tt-border);
  color: var(--tt-text-sub);
  padding: 4px 12px;
  border-radius: 6px;
  transition: all .15s;
}
.tt-btn-logout:hover {
  border-color: var(--tt-danger);
  color: var(--tt-danger);
}

.tt-theme-toggle {
  width: 32px; height: 32px;
  display: flex; align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid var(--tt-border);
  border-radius: 6px;
  color: var(--tt-text-sub);
  cursor: pointer;
  font-size: 14px;
  transition: all .15s;
  flex-shrink: 0;
}
.tt-theme-toggle:hover {
  border-color: var(--tt-accent);
  color: var(--tt-accent);
}

/* ── Layout ─────────────────────────────────────────────────── */
.tt-main {
  flex: 1;
  padding-bottom: 48px;
}

.tt-main-auth {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
}

.tt-footer {
  height: 40px;
  border-top: 1px solid var(--tt-border);
  background: var(--tt-surface);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  font-size: 11px;
  color: var(--tt-text-sub);
  font-family: var(--tt-mono);
  letter-spacing: 0.04em;
}
.tt-footer-sep { opacity: .4; }
.tt-footer-link { color: var(--tt-text-sub); text-decoration: none; }
.tt-footer-link:hover { color: var(--tt-text); }

/* ── Login ──────────────────────────────────────────────────── */
.tt-login-wrap {
  width: 100%;
  max-width: 420px;
}

.tt-login-card {
  background: var(--tt-surface);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius-lg);
  padding: 48px 40px;
  box-shadow: var(--tt-shadow);
}

.tt-login-header {
  text-align: center;
  margin-bottom: 36px;
}

.tt-login-logo {
  width: 60px; height: 60px;
  background: var(--tt-accent);
  border-radius: 14px;
  display: flex; align-items: center; justify-content: center;
  font-size: 28px;
  color: #fff;
  margin: 0 auto 16px;
  box-shadow: 0 8px 32px rgba(79,109,245,.35);
}

.tt-login-title {
  font-family: var(--tt-mono);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--tt-text);
  margin: 0 0 4px;
  letter-spacing: 0.02em;
}

.tt-login-sub {
  font-size: 12px;
  color: var(--tt-text-sub);
  margin: 0;
  font-family: var(--tt-mono);
}

/* ── Form Elements ──────────────────────────────────────────── */
.tt-label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  color: #c8d4f0;
  margin-bottom: 6px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: var(--tt-mono);
}

.tt-label-sm {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: #c8d4f0;
  margin-bottom: 4px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-family: var(--tt-mono);
}

.tt-required { color: var(--tt-danger); }

.tt-input-wrap { position: relative; }

.tt-input-icon {
  position: absolute;
  left: 12px; top: 50%;
  transform: translateY(-50%);
  color: var(--tt-text-sub);
  font-size: 15px;
  pointer-events: none;
}

.tt-input {
  width: 100%;
  background: var(--tt-bg);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius);
  color: var(--tt-text);
  padding: 10px 14px;
  font-size: 14px;
  font-family: var(--tt-sans);
  transition: border-color .15s, box-shadow .15s;
  outline: none;
}

.tt-input-wrap .tt-input { padding-left: 38px; }

.tt-input:focus {
  border-color: var(--tt-accent);
  box-shadow: 0 0 0 3px rgba(79,109,245,.18);
}

.tt-input::placeholder { color: var(--tt-text-sub); opacity: .6; }

.tt-textarea { resize: vertical; min-height: 80px; }

.tt-input-sm {
  background: var(--tt-bg);
  border: 1px solid var(--tt-border);
  border-radius: 6px;
  color: var(--tt-text);
  padding: 6px 10px;
  font-size: 13px;
  font-family: var(--tt-mono);
  outline: none;
  transition: border-color .15s;
}
.tt-input-sm:focus { border-color: var(--tt-accent); }

input[type="color"].tt-color-picker {
  width: 40px; height: 36px;
  padding: 2px;
  border: 1px solid var(--tt-border);
  border-radius: 6px;
  background: var(--tt-bg);
  cursor: pointer;
}

.tt-color-swatches { display: flex; gap: 6px; flex-wrap: wrap; }
.tt-swatch {
  width: 22px; height: 22px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s, border-color .15s;
}
.tt-swatch:hover { transform: scale(1.2); border-color: rgba(255,255,255,.4); }

/* ── Buttons ────────────────────────────────────────────────── */
.tt-btn-primary {
  display: inline-flex; align-items: center;
  background: var(--tt-accent);
  color: #fff !important;
  border: none;
  border-radius: var(--tt-radius);
  padding: 9px 20px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: background .15s, transform .1s;
  text-decoration: none;
}
.tt-btn-primary:hover { background: var(--tt-accent-dim); transform: translateY(-1px); }
.tt-btn-primary:active { transform: translateY(0); }

.tt-btn-secondary {
  display: inline-flex; align-items: center;
  background: var(--tt-surface-2);
  color: var(--tt-text) !important;
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius);
  padding: 9px 20px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}
.tt-btn-secondary:hover { background: var(--tt-surface); border-color: var(--tt-accent); }

.tt-btn-timer {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--tt-surface-2);
  color: var(--tt-text);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius);
  padding: 7px 14px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  font-family: var(--tt-mono);
  white-space: nowrap;
  line-height: 1.4;
}
.tt-btn-timer:hover { border-color: var(--tt-accent); color: var(--tt-accent); }
.tt-btn-timer--running {
  background: color-mix(in srgb, var(--tt-danger) 12%, var(--tt-surface));
  border-color: var(--tt-danger);
  color: var(--tt-danger);
  animation: timerPulse 2s ease-in-out infinite;
}
.tt-btn-timer--running:hover { color: var(--tt-danger); }
@keyframes timerPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(220,53,69,.4); }
  50%       { box-shadow: 0 0 0 6px rgba(220,53,69,0); }
}

.tt-btn-ghost {
  display: inline-flex; align-items: center;
  background: transparent;
  color: var(--tt-text-sub) !important;
  border: 1px solid transparent;
  border-radius: var(--tt-radius);
  padding: 9px 16px;
  font-size: 13px;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}
.tt-btn-ghost:hover { color: var(--tt-text) !important; border-color: var(--tt-border); }

.tt-btn-danger {
  display: inline-flex; align-items: center;
  background: var(--tt-danger);
  color: #fff !important;
  border: none;
  border-radius: var(--tt-radius);
  padding: 9px 20px;
  font-size: 13px;
  font-weight: 500;
  cursor: pointer;
  transition: all .15s;
  text-decoration: none;
}
.tt-btn-danger:hover { background: #dc2626; }

.tt-btn-icon {
  width: 30px; height: 30px;
  display: inline-flex; align-items: center; justify-content: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--tt-text-sub);
  cursor: pointer;
  transition: all .15s;
  font-size: 13px;
}
.tt-btn-icon:hover { background: var(--tt-surface-2); color: var(--tt-text); border-color: var(--tt-border); }
.tt-btn-danger-icon:hover { color: var(--tt-danger); border-color: var(--tt-danger); }

/* ── Cards ──────────────────────────────────────────────────── */
.tt-card {
  background: var(--tt-surface);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius-lg);
  overflow: hidden;
}
.tt-card-body { padding: 28px; }

/* ── Project Cards (Dashboard) ──────────────────────────────── */
.tt-project-card {
  display: block;
  background: var(--tt-surface);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius-lg);
  overflow: hidden;
  position: relative;
  text-decoration: none;
  transition: transform .18s, box-shadow .18s, border-color .18s;
}
.tt-project-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,.4);
  border-color: var(--project-color, var(--tt-accent));
}

.tt-project-card-accent {
  height: 4px;
  background: var(--project-color, var(--tt-accent));
  box-shadow: 0 0 16px var(--project-color, var(--tt-accent));
}

.tt-project-card-body {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
}

.tt-project-card-icon {
  width: 40px; height: 40px;
  background: color-mix(in srgb, var(--project-color, var(--tt-accent)) 15%, transparent);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 18px;
  color: var(--project-color, var(--tt-accent));
  flex-shrink: 0;
}

.tt-project-card-info { min-width: 0; }

.tt-project-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--tt-text);
  margin: 0 0 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ── Labels ─────────────────────────────────────────────── */
.tt-label-badge {
  display: inline-block;
  padding: 2px 9px;
  border-radius: 10px;
  font-size: 11px;
  font-weight: 600;
  color: #fff;
  white-space: nowrap;
}

.tt-label-filter {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.tt-label-pill {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 13px;
  font-weight: 500;
  background: var(--tt-card-bg);
  border: 1px solid var(--tt-border);
  color: var(--tt-text);
  text-decoration: none;
  transition: background 0.15s, color 0.15s, border-color 0.15s;
}

.tt-label-pill:hover {
  background: var(--label-color, var(--tt-accent));
  border-color: transparent;
  color: #fff;
}

.tt-label-pill-active {
  background: var(--label-color) !important;
  border-color: transparent !important;
  color: #fff !important;
}

.tt-label-pill-all-active {
  background: var(--tt-accent) !important;
  border-color: transparent !important;
  color: #fff !important;
}

.tt-project-deadline {
  font-size: 11px;
  color: var(--tt-text-sub);
}

.tt-project-desc {
  font-size: 12px;
  color: var(--tt-text-sub);
  margin: 0 0 8px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.tt-project-meta {
  font-size: 11px;
  color: var(--project-color, var(--tt-accent));
  font-family: var(--tt-mono);
}

.tt-project-stats {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-top: 6px;
  flex-wrap: wrap;
}

.tt-project-stat {
  font-size: 11px;
  font-family: var(--tt-mono);
  color: var(--tt-text-sub);
}

.tt-project-stat-sep {
  font-size: 11px;
  color: var(--tt-border);
}

/* ── Page Header ────────────────────────────────────────────── */
.tt-page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.tt-page-title {
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--tt-text);
  margin: 0 0 2px;
  letter-spacing: -0.01em;
}

.tt-page-sub {
  font-size: 12px;
  color: var(--tt-text-sub);
  margin: 0;
}

.tt-back-link {
  color: var(--tt-text-sub) !important;
  font-size: 12px;
}
.tt-back-link:hover { color: var(--tt-text) !important; }

/* ── Summary Bar ────────────────────────────────────────────── */
.tt-summary-bar {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--tt-surface);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius-lg);
  overflow: hidden;
}

.tt-summary-item {
  display: flex;
  flex-direction: column;
  padding: 16px 28px;
  gap: 4px;
}

.tt-summary-sep {
  width: 1px;
  align-self: stretch;
  background: var(--tt-border);
}

.tt-summary-label {
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--tt-text-sub);
  font-family: var(--tt-mono);
}

.tt-summary-value {
  font-size: 1.6rem;
  font-weight: 600;
  font-family: var(--tt-mono);
  color: var(--tt-text);
  line-height: 1;
}

.tt-summary-highlight { color: var(--tt-accent); }

/* ── Table ──────────────────────────────────────────────────── */
.tt-table {
  color: var(--tt-text);
  font-size: 13px;
  border-collapse: collapse;
}

.tt-table thead th {
  background: var(--tt-surface-2);
  border-bottom: 1px solid var(--tt-border);
  color: #c8d4f0;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-family: var(--tt-mono);
  font-weight: 600;
  padding: 10px 16px;
  white-space: nowrap;
}

.tt-table tbody td {
  border-bottom: 1px solid var(--tt-border);
  padding: 10px 16px;
  vertical-align: middle;
}

.tt-table tbody tr:last-child td { border-bottom: none; }

.tt-table tbody tr {
  transition: background .1s;
}
.tt-table tbody tr:hover { background: var(--tt-surface-2); }

.tt-tfoot-sum td {
  padding: 12px 16px;
  background: color-mix(in srgb, var(--tt-accent) 8%, var(--tt-surface));
  border-top: 2px solid var(--tt-accent);
  font-family: var(--tt-mono);
  font-size: 13px;
}

.tt-units-sum { color: var(--tt-accent); }
.tt-cell-mono { font-family: var(--tt-mono); }
.tt-cell-comment { color: var(--tt-text-sub); max-width: 280px; }
.tt-muted { color: var(--tt-text-sub); }
.tt-table-link { color: var(--tt-text); font-weight: 500; }
.tt-table-link:hover { color: var(--tt-accent); }

.tt-color-dot {
  display: inline-block;
  width: 8px; height: 8px;
  border-radius: 50%;
  margin-right: 8px;
  vertical-align: middle;
  flex-shrink: 0;
}

/* ── Project Dot (view header) ──────────────────────────────── */
.tt-project-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  display: inline-block;
  flex-shrink: 0;
  box-shadow: 0 0 10px currentColor;
}

/* ── Filter Row ─────────────────────────────────────────────── */
.tt-filter-row { }

/* ── Modal ──────────────────────────────────────────────────── */
.tt-modal {
  background: var(--tt-surface);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius-lg);
  color: var(--tt-text);
}
.tt-modal .modal-header {
  border-bottom: 1px solid var(--tt-border);
  padding: 16px 20px;
}
.tt-modal .modal-footer {
  border-top: 1px solid var(--tt-border);
  padding: 14px 20px;
}
.tt-modal .modal-body { padding: 20px; }
.tt-modal .btn-close { filter: invert(1) brightness(.8); }

/* ── Dropdown ───────────────────────────────────────────────── */
.tt-dropdown {
  background: var(--tt-surface);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius);
  padding: 4px;
  box-shadow: var(--tt-shadow);
  min-width: 180px;
}
.tt-dropdown .dropdown-item {
  color: var(--tt-text);
  border-radius: 6px;
  font-size: 13px;
  padding: 8px 12px;
}
.tt-dropdown .dropdown-item:hover { background: var(--tt-surface-2); color: var(--tt-accent); }

/* ── Alerts ─────────────────────────────────────────────────── */
.tt-alert {
  background: color-mix(in srgb, var(--tt-success) 12%, var(--tt-surface));
  border: 1px solid color-mix(in srgb, var(--tt-success) 30%, transparent);
  color: var(--tt-text);
  border-radius: var(--tt-radius);
  font-size: 13px;
}
.tt-alert-danger {
  background: color-mix(in srgb, var(--tt-danger) 12%, var(--tt-surface));
  border: 1px solid color-mix(in srgb, var(--tt-danger) 30%, transparent);
  color: var(--tt-text);
  border-radius: var(--tt-radius);
  font-size: 13px;
  padding: 10px 14px;
}

/* ── Calc Preview (modal) ───────────────────────────────────── */
.tt-calc-preview {
  background: var(--tt-surface-2);
  border: 1px solid var(--tt-border);
  border-radius: var(--tt-radius);
  padding: 12px 16px;
}
.tt-calc-label {
  display: block;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--tt-text-sub);
  font-family: var(--tt-mono);
}
.tt-calc-val {
  display: block;
  font-size: 1.4rem;
  font-weight: 600;
  font-family: var(--tt-mono);
  color: var(--tt-accent);
}

/* ── Empty State ────────────────────────────────────────────── */
.tt-empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 24px;
  text-align: center;
  color: var(--tt-text-sub);
}
.tt-empty-icon {
  font-size: 3rem;
  color: var(--tt-border);
  margin-bottom: 16px;
}
.tt-empty-state h4, .tt-empty-state h5 {
  color: var(--tt-text);
  margin-bottom: 6px;
}
.tt-empty-state p { font-size: 13px; margin: 0; }

/* ── Scrollbar ──────────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--tt-bg); }
::-webkit-scrollbar-thumb { background: var(--tt-border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--tt-text-sub); }

/* ── Responsive ─────────────────────────────────────────────── */
@media (max-width: 640px) {
  .tt-summary-bar { flex-direction: column; }
  .tt-summary-sep { width: auto; height: 1px; align-self: stretch; }
  .tt-login-card { padding: 32px 24px; }
  .tt-page-header { flex-direction: column; }
}