/* ============================================================
   ΒιΆΉΉΩΝψ Tech Room Finder
   Swap the two colour variables below once you have the
   official hex codes β€” everything else updates automatically.
   ============================================================ */

:root {
  --color-primary:    #162447;   /* ΒιΆΉΉΩΝψ Tech blue  */
  --color-secondary:  #5b8726;   /* ΒιΆΉΉΩΝψ Tech green */
  --color-primary-dark:   #0e1830;
  --color-secondary-dark: #456619;
  --color-bg:         #f4f6f8;
  --color-surface:    #ffffff;
  --color-border:     #dde1e6;
  --color-text:       #1a1a2e;
  --color-text-muted: #5a6170;
  --color-error-bg:   #fdf0f0;
  --color-error-text: #c0392b;
  --radius:           8px;
  --shadow:           0 2px 12px rgba(0,0,0,0.10);
  --map-min-width:    600px;   /* never squish below a legible size */
}

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

html { font-size: 16px; }

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

/* ── Header ─────────────────────────────────────────────── */
.site-header {
  background: var(--color-primary);
  color: #fff;
  padding: 0.875rem 1.25rem;
  box-shadow: var(--shadow);
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
}

.header-brand {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
}

.header-title {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  font-weight: 700;
  letter-spacing: -0.01em;
}

.header-sub {
  font-size: clamp(0.7rem, 2vw, 0.85rem);
  opacity: 0.85;
  font-weight: 400;
}

/* ── Main ────────────────────────────────────────────────── */
.main {
  flex: 1;
  max-width: 900px;
  width: 100%;
  margin: 0 auto;
  padding: 1.5rem 1rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* ── Search ──────────────────────────────────────────────── */
.search-section {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.25rem 1.25rem 1rem;
  box-shadow: var(--shadow);
}

.search-label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  font-size: 0.95rem;
  color: var(--color-text);
}

.search-row {
  display: flex;
  gap: 0.5rem;
}

.search-input {
  flex: 1;
  padding: 0.65rem 0.875rem;
  font-size: 1.1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius);
  outline: none;
  transition: border-color 0.15s;
  font-family: inherit;
  min-width: 0;
  letter-spacing: 0.03em;
}

.search-input:focus {
  border-color: var(--color-primary);
}

.search-btn {
  padding: 0.65rem 1.25rem;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, transform 0.1s;
  font-family: inherit;
}

.search-btn:hover  { background: var(--color-primary-dark); }
.search-btn:active { transform: scale(0.97); }

.search-hint {
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--color-text-muted);
}

/* ── Error ───────────────────────────────────────────────── */
.error-section {
  background: var(--color-error-bg);
  border: 1px solid #f5c6c6;
  border-radius: var(--radius);
  padding: 0.875rem 1rem;
}

.error-message {
  color: var(--color-error-text);
  font-size: 0.9rem;
  font-weight: 500;
}

/* ── Result ──────────────────────────────────────────────── */
.result-section {
  display: flex;
  flex-direction: column;
  gap: 0.875rem;
}

.result-header {
  background: var(--color-secondary);
  color: #fff;
  border-radius: var(--radius);
  padding: 0.75rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
}

.result-header .room-id   { font-size: 1.2rem; display: block; margin-bottom: 0.1rem; }
.result-header .room-loc  { opacity: 0.9; font-weight: 400; font-size: 0.85rem; }

/* ── Rotate hint (portrait phones only) ──────────────────── */
.rotate-hint {
  display: none;   /* hidden by default; shown via media query */
  align-items: center;
  gap: 0.5rem;
  background: #fff8e1;
  border: 1px solid #ffe082;
  border-radius: var(--radius);
  padding: 0.6rem 0.875rem;
  font-size: 0.85rem;
  color: #795548;
}

.rotate-icon { font-size: 1.1rem; }

@media (orientation: portrait) and (max-width: 600px) {
  .rotate-hint { display: flex; }
}

/* ── Map ─────────────────────────────────────────────────── */

/* Outer scroll wrapper β€” clips overflow and provides touch scroll */
.map-scroll-container {
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
  /* Thin scrollbar on desktop */
  scrollbar-width: thin;
  scrollbar-color: var(--color-primary) transparent;
}

.map-scroll-container::-webkit-scrollbar        { height: 6px; }
.map-scroll-container::-webkit-scrollbar-thumb  { background: var(--color-primary); border-radius: 3px; }
.map-scroll-container::-webkit-scrollbar-track  { background: transparent; }

/* Inner container β€” sets the coordinate space for the pin */
.map-container {
  position: relative;
  display: inline-block;  /* shrink-wraps to image */
  min-width: var(--map-min-width);
  line-height: 0;          /* removes gap under image */
}

/* The floor plan image */
.floor-plan {
  width: 100%;
  height: auto;
  display: block;
  user-select: none;
  -webkit-user-drag: none;
}

/* ── Pin ─────────────────────────────────────────────────── */
.pin {
  position: absolute;
  /* clamp: 3% of container, never < 24px, never > 42px */
  width: clamp(24px, 3%, 42px);
  /* tip of the pin points to the coordinate */
  transform: translate(-50%, -100%);
  filter: drop-shadow(0 2px 4px rgba(0,0,0,0.35));
  pointer-events: none;
  animation: pinDrop 0.35s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

.pin svg { width: 100%; height: auto; display: block; }

@keyframes pinDrop {
  from { transform: translate(-50%, -200%); opacity: 0; }
  to   { transform: translate(-50%, -100%); opacity: 1; }
}

/* ── Room info panel ─────────────────────────────────────── */
.room-info {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
  box-shadow: var(--shadow);
}

.room-info .info-row {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.room-info .info-label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
}

.room-info .info-value {
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
}

/* ── Footer ──────────────────────────────────────────────── */
.site-footer {
  text-align: center;
  padding: 1rem;
  font-size: 0.75rem;
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
  margin-top: auto;
}

/* ── Utility: hidden ─────────────────────────────────────── */
[hidden] { display: none !important; }