/* ═══════════════════════════════════════
   EV Charging System – Global Styles
═══════════════════════════════════════ */
:root {
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --success: #16a34a;
  --warning: #ca8a04;
  --danger: #dc2626;
  --neutral: #6b7280;
  --bg: #f1f5f9;
  --card-bg: #ffffff;
  --border: #e2e8f0;
  --text: #1e293b;
  --text-muted: #64748b;
  --radius: 12px;
  --shadow: 0 2px 12px rgba(0,0,0,0.08);
  --navbar-bg: #1e293b;
  --input-bg: #f8fafc;
  --table-head: #f1f5f9;
}

/* ── Dark Mode ── */
body.dark {
  --bg: #0f172a;
  --card-bg: #1e293b;
  --border: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --shadow: 0 2px 12px rgba(0,0,0,0.4);
  --navbar-bg: #0f172a;
  --input-bg: #1e293b;
  --table-head: #1e293b;
}
body.dark { background: var(--bg); color: var(--text); }
body.dark .card { background: var(--card-bg); border-color: var(--border); }
body.dark .form-control,
body.dark select,
body.dark input[type="text"],
body.dark input[type="number"],
body.dark input[type="date"],
body.dark input[type="time"],
body.dark input[type="datetime-local"] {
  background: #0f172a !important;
  color: var(--text) !important;
  border-color: var(--border) !important;
}
body.dark thead th { background: var(--table-head); color: var(--text-muted); }
body.dark tbody tr:hover { background: #263148; }
body.dark .hero { background: linear-gradient(135deg, #0f172a 0%, #1d4ed8 100%); }
body.dark .step { background: var(--card-bg); border-color: var(--border); color: var(--text); }
body.dark .step:hover { border-color: var(--primary); }
body.dark footer { background: #0f172a; }
body.dark .alert-info { background: #1e3a5f; color: #93c5fd; border-color: #1d4ed8; }
body.dark .alert-success { background: #14352a; color: #86efac; border-color: #166534; }
body.dark .alert-danger { background: #3b1a1a; color: #fca5a5; border-color: #991b1b; }
body.dark code { background: #0f172a; color: #93c5fd; padding: 0.1rem 0.3rem; border-radius: 4px; }

/* Dark mode toggle button */
.dark-toggle {
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #cbd5e1;
  border-radius: 8px;
  padding: 0.35rem 0.7rem;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  transition: background 0.15s;
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}
.dark-toggle:hover { background: rgba(255,255,255,0.2); color: #fff; }
.dark-toggle .toggle-label { font-size: 0.78rem; font-weight: 500; }

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

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ── Navbar ── */
.navbar {
  background: #1e293b;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 60px;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 8px rgba(0,0,0,0.2);
}
.navbar-brand {
  color: #fff;
  font-weight: 700;
  font-size: 1.15rem;
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.navbar-brand span { color: #60a5fa; }
.navbar-links { display: flex; gap: 0.25rem; align-items: center; flex: 1; }
.navbar-links a {
  color: #cbd5e1;
  text-decoration: none;
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  font-size: 0.9rem;
  transition: background 0.15s, color 0.15s;
}
.navbar-links a:hover, .navbar-links a.active {
  background: rgba(96,165,250,0.15);
  color: #93c5fd;
}
.navbar-user {
  color: #e2e8f0;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.35rem 0.7rem;
  border: 1px solid rgba(255,255,255,0.16);
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}
.role-badge {
  border-radius: 999px;
  padding: 0.12rem 0.45rem;
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0;
}
.role-admin {
  background: #fef3c7;
  color: #92400e;
}
.role-user {
  background: #dbeafe;
  color: #1d4ed8;
}

/* ── Layout ── */
.page-wrapper { max-width: 1100px; margin: 0 auto; padding: 2rem 1.5rem; flex: 1; }
.page-title { font-size: 1.6rem; font-weight: 700; margin-bottom: 1.5rem; color: var(--text); }
.page-title small { font-size: 0.9rem; font-weight: 400; color: var(--text-muted); margin-left: 0.5rem; }

/* ── Cards ── */
.card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
  margin-bottom: 1.25rem;
}
.card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.75rem;
  border-bottom: 1px solid var(--border);
}
.card-title { font-size: 1.1rem; font-weight: 600; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.55rem 1.2rem;
  border-radius: 8px;
  border: none;
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: filter 0.15s, transform 0.1s;
}
.btn:hover { filter: brightness(0.92); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-success { background: var(--success); color: #fff; }
.btn-danger  { background: var(--danger);  color: #fff; }
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-sm { padding: 0.35rem 0.8rem; font-size: 0.82rem; }
.btn-lg { padding: 0.75rem 1.8rem; font-size: 1rem; }

/* ── Forms ── */
.form-group { margin-bottom: 1.1rem; }
.form-label { display: block; font-size: 0.875rem; font-weight: 500; margin-bottom: 0.35rem; color: var(--text); }
.form-control {
  width: 100%;
  padding: 0.6rem 0.85rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 0.9rem;
  background: #fff;
  color: var(--text);
  transition: border-color 0.15s;
}
.form-control:focus { outline: none; border-color: var(--primary); }
.form-control.is-invalid { border-color: var(--danger); }
.form-hint { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.25rem; }
.error-msg { color: var(--danger); font-size: 0.8rem; margin-top: 0.25rem; }

/* ── Alerts ── */
.alert {
  padding: 0.85rem 1.1rem;
  border-radius: 10px;
  margin-bottom: 1.25rem;
  font-size: 0.9rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.alert-success { background: #dcfce7; color: #15803d; border: 1px solid #bbf7d0; }
.alert-danger  { background: #fee2e2; color: #b91c1c; border: 1px solid #fecaca; }
.alert-warning { background: #fef9c3; color: #92400e; border: 1px solid #fde68a; }
.alert-info    { background: #dbeafe; color: #1d4ed8; border: 1px solid #bfdbfe; }

/* ── Table ── */
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: 0.9rem; }
thead th {
  background: #f1f5f9;
  padding: 0.65rem 0.9rem;
  text-align: left;
  font-weight: 600;
  color: var(--text-muted);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  border-bottom: 2px solid var(--border);
}
tbody td { padding: 0.7rem 0.9rem; border-bottom: 1px solid var(--border); vertical-align: middle; }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: #f8fafc; }

/* ── Badges ── */
.badge {
  display: inline-block;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}
.badge-green   { background: #dcfce7; color: #15803d; }
.badge-yellow  { background: #fef9c3; color: #92400e; }
.badge-red     { background: #fee2e2; color: #b91c1c; }
.badge-blue    { background: #dbeafe; color: #1d4ed8; }
.badge-gray    { background: #f1f5f9; color: #64748b; }

/* ── Hero / Home ── */
.hero {
  background: linear-gradient(135deg, #1e293b 0%, #1d4ed8 100%);
  border-radius: 16px;
  padding: 3rem 2.5rem;
  color: #fff;
  margin-bottom: 2rem;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: '';
  position: absolute;
  right: -60px; top: -60px;
  width: 280px; height: 280px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.hero h1 { font-size: 2rem; font-weight: 800; margin-bottom: 0.75rem; }
.hero p  { font-size: 1.05rem; color: #bfdbfe; margin-bottom: 1.5rem; max-width: 550px; }
.hero-actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* ── Steps / Demo Flow ── */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1rem; margin: 1.5rem 0; }
.step {
  background: #fff;
  border: 1.5px solid var(--border);
  border-radius: 12px;
  padding: 1.2rem 1rem;
  text-align: center;
  text-decoration: none;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s, transform 0.15s;
}
.step:hover { border-color: var(--primary); box-shadow: 0 4px 16px rgba(37,99,235,0.12); transform: translateY(-2px); }
.step-num { font-size: 1.8rem; font-weight: 800; color: var(--primary); margin-bottom: 0.4rem; }
.step-label { font-size: 0.85rem; font-weight: 600; }
.step-desc  { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.25rem; }

/* ── Charger status dots ── */
.dot { display: inline-block; width: 10px; height: 10px; border-radius: 50%; margin-right: 5px; }
.dot-green  { background: #22c55e; }
.dot-yellow { background: #eab308; }
.dot-red    { background: #ef4444; }
.dot-gray   { background: #9ca3af; }

/* ── Session result ── */
.cost-summary {
  background: linear-gradient(135deg, #1e293b, #1d4ed8);
  color: #fff;
  border-radius: 14px;
  padding: 2rem;
  text-align: center;
  margin: 1.5rem 0;
}
.cost-big { font-size: 3rem; font-weight: 800; margin: 0.5rem 0; }
.cost-label { font-size: 0.9rem; color: #bfdbfe; }
.cost-meta { display: flex; justify-content: center; gap: 2rem; margin-top: 1.25rem; flex-wrap: wrap; }
.cost-meta-item { text-align: center; }
.cost-meta-item .val { font-size: 1.3rem; font-weight: 700; }
.cost-meta-item .lbl { font-size: 0.78rem; color: #bfdbfe; }

/* ── Battery bar ── */
.battery-bar { background: #e2e8f0; border-radius: 999px; height: 14px; overflow: hidden; margin: 0.4rem 0; }
.battery-fill { height: 100%; border-radius: 999px; background: linear-gradient(90deg, #2563eb, #22c55e); transition: width 0.6s; }

/* ── Compat badge ── */
.compat-ok  { display: inline-flex; align-items: center; gap: 0.4rem; color: #15803d; font-weight: 600; }
.compat-no  { display: inline-flex; align-items: center; gap: 0.4rem; color: #b91c1c; font-weight: 600; }

/* ── Map ── */
#map { width: 100%; height: calc(100vh - 110px); border-radius: 14px; overflow: hidden; }

/* ── Footer ── */
footer {
  background: #1e293b;
  color: #64748b;
  text-align: center;
  padding: 1rem;
  font-size: 0.8rem;
  margin-top: auto;
}

/* ── Utility ── */
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; }
.gap-1 { gap: 0.5rem; }
.gap-2 { gap: 1rem; }
.text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
@media (max-width: 640px) {
  .grid-2 { grid-template-columns: 1fr; }
  .hero h1 { font-size: 1.5rem; }
}