:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface2: #2d3e56;
  --border: #334155;
  --accent: #6366f1;
  --accent-dark: #4f46e5;
  --accent-glow: rgba(99,102,241,.25);
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --danger: #ef4444;
  --success: #22c55e;
  --warning: #f59e0b;
  --radius: 14px;
  --radius-sm: 8px;
}

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

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 16px;
  -webkit-tap-highlight-color: transparent;
}

/* ── Screens ─────────────────────────────────────────────────────────────── */
.screen { min-height: 100dvh; }

/* ── Login Screen ────────────────────────────────────────────────────────── */
.login-screen {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px 16px;
  background: radial-gradient(ellipse at top, #1e1b4b 0%, var(--bg) 70%);
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.login-icon { font-size: 40px; text-align: center; margin-bottom: 4px; }
.login-title { font-size: 1.4rem; font-weight: 700; text-align: center; letter-spacing: -.4px; }
.login-subtitle { color: var(--text-muted); font-size: .9rem; text-align: center; margin-bottom: 10px; }

.login-error {
  background: rgba(239,68,68,.1);
  border: 1px solid rgba(239,68,68,.4);
  border-radius: var(--radius-sm);
  color: var(--danger);
  font-size: .85rem;
  padding: 10px 14px;
  margin-bottom: 4px;
  animation: shake .3s ease;
}

@keyframes shake {
  0%,100% { transform: translateX(0); }
  25% { transform: translateX(-6px); }
  75% { transform: translateX(6px); }
}

/* Password field with toggle */
.pw-wrap { position: relative; }
.pw-wrap .field-input { padding-right: 44px; }
.pw-toggle {
  position: absolute;
  right: 10px;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  opacity: .5;
  padding: 4px;
  transition: opacity .15s;
}
.pw-toggle:hover { opacity: 1; }

/* ── App Header ──────────────────────────────────────────────────────────── */
.app-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 16px;
}

.header-content {
  max-width: 600px;
  margin: 0 auto;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-icon { font-size: 1.3rem; }
.header-title { flex: 1; font-size: 1.1rem; font-weight: 700; }

.logout-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  padding: 6px 12px;
  font-size: .8rem;
  font-weight: 600;
  cursor: pointer;
  transition: color .15s, border-color .15s;
  white-space: nowrap;
}
.logout-btn:hover { color: var(--text); border-color: var(--text-muted); }

/* ── Main ────────────────────────────────────────────────────────────────── */
.app-main {
  max-width: 600px;
  margin: 0 auto;
  padding: 20px 16px 40px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

/* ── Card ────────────────────────────────────────────────────────────────── */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 18px;
}

.card-title { font-size: 1rem; font-weight: 700; }

/* ── GPS button ──────────────────────────────────────────────────────────── */
.gps-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: .85rem;
  padding: 7px 14px;
  cursor: pointer;
  transition: background .15s;
}
.gps-btn:hover { background: var(--border); }
.gps-btn:active { transform: scale(.97); }
.gps-btn.loading { opacity: .6; pointer-events: none; }

/* ── Form fields ─────────────────────────────────────────────────────────── */
.field-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 14px; }
.field-group:last-child { margin-bottom: 0; }

.field-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  margin-bottom: 14px;
}
.field-group--sm { width: 110px; }

.field-label { font-size: .8rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: .5px; }

.field-input, .field-select {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 1rem;
  padding: 12px 14px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
  -webkit-appearance: none;
}
.field-input:focus, .field-select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}
.field-input[readonly] {
  opacity: .5;
  cursor: not-allowed;
}

.field-hint { font-size: .75rem; color: var(--text-muted); }

.select-wrap { position: relative; }
.select-wrap::after {
  content: '▾';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-muted);
  pointer-events: none;
}

/* ── Save button ─────────────────────────────────────────────────────────── */
.save-btn {
  width: 100%;
  margin-top: 20px;
  padding: 15px;
  background: var(--accent);
  border: none;
  border-radius: var(--radius);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: background .15s, transform .1s;
  letter-spacing: .3px;
}
.save-btn:hover { background: var(--accent-dark); }
.save-btn:active { transform: scale(.98); }
.save-btn:disabled { opacity: .5; pointer-events: none; }

/* ── Toast ───────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 20px;
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap;
  box-shadow: 0 8px 24px rgba(0,0,0,.4);
  z-index: 100;
  animation: slideUp .2s ease;
}
.toast.success { border-color: var(--success); color: var(--success); }
.toast.error   { border-color: var(--danger);  color: var(--danger); }
.toast.info    { border-color: var(--accent);  color: var(--accent); }

@keyframes slideUp {
  from { opacity: 0; transform: translateX(-50%) translateY(12px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}