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

:root {
  --bg: #0f0f1a;
  --surface: #1a1a2e;
  --surface2: #242444;
  --accent: #6c63ff;
  --accent2: #48cfad;
  --danger: #ff6b6b;
  --text: #e0e0f0;
  --text2: #9090b0;
  --radius: 12px;
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  max-width: 480px;
  margin: 0 auto;
  padding: 0 16px 80px;
}

.hidden { display: none !important; }

/* Login / Register */
.logo { font-size: 48px; text-align: center; margin: 40px 0 8px; }
h1 { text-align: center; font-size: 24px; margin-bottom: 24px; }

.card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 20px;
  margin-bottom: 16px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

input, select {
  background: var(--surface2);
  border: 1px solid #333360;
  border-radius: 8px;
  color: var(--text);
  font-size: 16px;
  padding: 12px 14px;
  width: 100%;
  outline: none;
}
input:focus, select:focus { border-color: var(--accent); }

label { font-size: 13px; color: var(--text2); margin-bottom: -6px; }

.btn {
  border: none;
  border-radius: 8px;
  cursor: pointer;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 20px;
  transition: opacity 0.15s;
}
.btn:hover { opacity: 0.85; }
.btn.primary { background: var(--accent); color: white; }
.btn.success { background: var(--accent2); color: white; }
.btn.danger  { background: var(--danger); color: white; }
.btn.small   { font-size: 13px; padding: 6px 12px; }
.btn.outline { background: transparent; border: 1px solid var(--accent); color: var(--accent); }

a { color: var(--accent); text-decoration: none; text-align: center; font-size: 14px; }
.note { color: var(--text2); font-size: 13px; text-align: center; line-height: 1.5; }

/* Header */
header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 0 8px;
}
#welcome-name { font-size: 18px; font-weight: 700; }

/* Nav tabs */
nav {
  display: flex;
  gap: 6px;
  margin: 12px 0;
  overflow-x: auto;
  scrollbar-width: none;
}
.tab-btn {
  background: var(--surface);
  border: none;
  border-radius: 20px;
  color: var(--text2);
  cursor: pointer;
  font-size: 13px;
  padding: 8px 14px;
  white-space: nowrap;
  transition: all 0.15s;
}
.tab-btn.active { background: var(--accent); color: white; }

/* Tab content */
.tab-content { padding-top: 8px; }
h2 { font-size: 16px; color: var(--text2); margin: 16px 0 8px; text-transform: uppercase; letter-spacing: 0.5px; }

/* Room card */
.room-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 12px;
}
.room-name { font-size: 17px; font-weight: 600; margin-bottom: 8px; }
.room-temps { display: flex; gap: 16px; margin-bottom: 12px; }
.temp-item { text-align: center; }
.temp-value { font-size: 24px; font-weight: 700; color: var(--accent2); }
.temp-label { font-size: 12px; color: var(--text2); }
.temp-controls { display: flex; align-items: center; gap: 8px; }
.temp-controls input[type=range] { flex: 1; accent-color: var(--accent); }
.temp-controls span { font-size: 16px; font-weight: 600; min-width: 40px; }
.duration-row { display: flex; gap: 8px; margin-top: 8px; flex-wrap: wrap; }
.duration-btn { background: var(--surface2); border: none; border-radius: 20px; color: var(--text); cursor: pointer; font-size: 13px; padding: 6px 12px; }
.duration-btn.selected { background: var(--accent); color: white; }

/* Delivery card */
.delivery-card {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 10px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.delivery-info .service { font-weight: 600; }
.delivery-info .eta { font-size: 13px; color: var(--text2); }
.status-badge {
  border-radius: 12px;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 10px;
}
.status-badge.pending  { background: #2a4a3a; color: var(--accent2); }
.status-badge.delivered { background: #2a2a5a; color: #8888ff; }
.status-badge.cancelled { background: #3a2a2a; color: var(--danger); }

/* Access */
.alert-banner {
  background: #3a1a1a;
  border: 1px solid var(--danger);
  border-radius: var(--radius);
  padding: 16px;
  margin-bottom: 16px;
}
.alert-banner p { color: var(--danger); font-weight: 600; margin-bottom: 12px; }
.alert-actions { display: flex; gap: 8px; }
.alert-actions .btn { flex: 1; }

.access-event {
  background: var(--surface);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.access-event .person { font-weight: 600; }
.access-event .meta { font-size: 12px; color: var(--text2); }
.access-event .recognised { color: var(--accent2); }
.access-event .unknown { color: var(--danger); }

/* Notifications / instructions */
.instruction-block {
  background: var(--surface2);
  border-radius: 8px;
  padding: 14px;
}
.instruction-os { font-weight: 700; margin-bottom: 8px; color: var(--accent2); }
.instruction-steps { padding-left: 18px; display: flex; flex-direction: column; gap: 6px; }
.instruction-steps li { font-size: 14px; color: var(--text); line-height: 1.4; }
.instruction-steps code { background: var(--bg); border-radius: 4px; padding: 2px 6px; font-size: 13px; color: var(--accent); }

/* Admin */
.pending-card {
  background: var(--surface);
  border-radius: 8px;
  padding: 12px;
  margin-bottom: 8px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}