/* ================================================================
   HKG Flight Finder — Minecraft / 8-bit Pixel Aesthetic
   ================================================================ */

@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&display=swap');

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

/* ── Variables ────────────────────────────────────────────────── */
:root {
  --stone:       #7f7f7f;
  --stone-light: #9f9f9f;
  --stone-dark:  #5a5a5a;
  --dirt:        #8B6914;
  --dirt-dark:   #5C4033;
  --grass:       #5AAF25;
  --grass-dark:  #3D7A18;
  --wood:        #A07832;
  --gold:        #FFD700;
  --gold-dark:   #B8960C;
  --diamond:     #3ADDE8;
  --emerald:     #17DD62;
  --redstone:    #CC2200;
  --lapis:       #1E3E8F;
  --text-bright: #FFFAFA;
  --text-dim:    #C6C6C6;
  --text-gold:   #FFAA00;
  --bg-dark:     #1D1D1D;
  --card-bg:     #2D2D2D;
  --border-hi:   #C6C6C6;
  --border-lo:   #3D3D3D;
  --shadow:      rgba(0,0,0,0.7);
  --pixel:       4px;
  --font:        'Press Start 2P', monospace;
}

/* ── Body / background ────────────────────────────────────────── */
body {
  font-family: var(--font);
  font-size: 10px;
  background-color: var(--bg-dark);
  background-image:
    linear-gradient(rgba(255,255,255,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
  background-size: 16px 16px;
  color: var(--text-bright);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Minecraft panel border utility ───────────────────────────── */
.mc-panel {
  border: var(--pixel) solid;
  border-color: var(--border-hi) var(--border-lo) var(--border-lo) var(--border-hi);
  box-shadow: inset -2px -2px 0 #000, inset 2px 2px 0 rgba(255,255,255,.12);
  background: var(--card-bg);
  image-rendering: pixelated;
}

/* ── Header ───────────────────────────────────────────────────── */
header {
  background: linear-gradient(180deg, #2E5B12 0%, #1C3D09 60%, #121C07 100%);
  border-bottom: 6px solid #5AAF25;
  box-shadow: 0 4px 0 #3D7A18, 0 8px 0 #1C3D09;
  padding: 24px 20px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(90deg, transparent, transparent 15px, rgba(0,0,0,.08) 15px, rgba(0,0,0,.08) 16px),
    repeating-linear-gradient(0deg,  transparent, transparent 15px, rgba(0,0,0,.08) 15px, rgba(0,0,0,.08) 16px);
  pointer-events: none;
}

.header-icon { font-size: 40px; display: block; margin-bottom: 12px; filter: drop-shadow(0 4px 0 rgba(0,0,0,.6)); }

header h1 {
  font-size: clamp(10px, 2.5vw, 18px);
  color: var(--text-bright);
  text-shadow: 3px 3px 0 #000, -1px -1px 0 #000;
  letter-spacing: 2px;
  line-height: 1.8;
}

.header-sub {
  margin-top: 10px;
  font-size: clamp(7px, 1.5vw, 9px);
  color: var(--text-gold);
  text-shadow: 1px 1px 0 #000;
  letter-spacing: 1px;
}

/* ── Main layout ──────────────────────────────────────────────── */
main { max-width: 1200px; margin: 0 auto; padding: 20px 16px 60px; }

/* ── Screens ──────────────────────────────────────────────────── */
.screen { display: none; }

/* ── Setup screen ─────────────────────────────────────────────── */
#screen-setup {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 40px 16px;
}

.setup-box {
  width: 100%;
  max-width: 600px;
  padding: 32px;
  background: #1A2A10;
  border: 4px solid;
  border-color: #5AAF25 #1C3D09 #1C3D09 #5AAF25;
  box-shadow: inset -3px -3px 0 #000, inset 3px 3px 0 rgba(255,255,255,.08), 0 8px 0 rgba(0,0,0,.4);
}

.setup-box h2 {
  font-size: clamp(8px, 2vw, 14px);
  color: var(--emerald);
  text-shadow: 2px 2px 0 #000;
  margin-bottom: 20px;
  text-align: center;
}

.setup-desc {
  font-size: clamp(6px, 1.2vw, 8px);
  color: var(--text-dim);
  line-height: 2.2;
  margin-bottom: 24px;
}

.setup-desc a { color: var(--diamond); text-decoration: none; }
.setup-desc a:hover { text-decoration: underline; }

.setup-steps {
  list-style: none;
  margin: 12px 0 20px;
  padding-left: 8px;
}

.setup-steps li {
  margin-bottom: 10px;
  padding-left: 20px;
  position: relative;
  font-size: clamp(6px, 1.1vw, 8px);
  color: var(--text-dim);
  line-height: 2;
}

.setup-steps li::before {
  content: '▶';
  position: absolute;
  left: 0;
  color: var(--grass);
}

.field-label {
  display: block;
  font-size: 8px;
  color: var(--text-gold);
  margin-bottom: 8px;
  text-shadow: 1px 1px 0 #000;
}

.mc-input {
  width: 100%;
  padding: 12px 10px;
  font-family: var(--font);
  font-size: 9px;
  background: #0D0D0D;
  color: var(--text-bright);
  border: 3px solid;
  border-color: var(--border-lo) var(--border-hi) var(--border-hi) var(--border-lo);
  box-shadow: inset 2px 2px 0 rgba(0,0,0,.6);
  outline: none;
  letter-spacing: 1px;
  margin-bottom: 20px;
}

.mc-input:focus {
  border-color: var(--diamond);
  box-shadow: inset 2px 2px 0 rgba(0,0,0,.6), 0 0 0 2px var(--diamond);
}

/* ── Buttons ──────────────────────────────────────────────────── */
.mc-btn {
  font-family: var(--font);
  font-size: clamp(7px, 1.5vw, 10px);
  cursor: pointer;
  border: none;
  padding: 12px 20px;
  letter-spacing: 1px;
  position: relative;
  text-shadow: 1px 1px 0 rgba(0,0,0,.6);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: filter .08s;
}

.mc-btn:active { transform: translateY(2px); }

.btn-green {
  background: linear-gradient(180deg, #7BC54A 0%, #5AAF25 40%, #3D7A18 100%);
  color: var(--text-bright);
  border: 3px solid;
  border-color: #A0E060 #1C4A0A #1C4A0A #A0E060;
  box-shadow: 0 4px 0 #1C4A0A, inset 0 1px 0 rgba(255,255,255,.2);
  width: 100%;
  justify-content: center;
}

.btn-green:hover { filter: brightness(1.15); }

.btn-small {
  background: linear-gradient(180deg, #888 0%, #666 40%, #444 100%);
  color: var(--text-dim);
  border: 3px solid;
  border-color: #aaa #333 #333 #aaa;
  box-shadow: 0 3px 0 #222;
  font-size: 7px;
  padding: 8px 14px;
}

.btn-small:hover { filter: brightness(1.15); }

.btn-gold {
  background: linear-gradient(180deg, #FFD700 0%, #DAA520 40%, #8B6914 100%);
  color: #2D1A00;
  border: 3px solid;
  border-color: #FFE87C #5C3800 #5C3800 #FFE87C;
  box-shadow: 0 4px 0 #5C3800;
  font-size: 8px;
  padding: 10px 16px;
}

.btn-gold:hover { filter: brightness(1.1); }

/* ── Loading screen ───────────────────────────────────────────── */
#screen-loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 60px 20px;
  min-height: 60vh;
  justify-content: center;
  gap: 28px;
}

.pickaxe-anim {
  font-size: 60px;
  display: block;
  animation: swing 0.6s ease-in-out infinite alternate;
  transform-origin: bottom right;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,.6));
}

@keyframes swing {
  from { transform: rotate(-30deg); }
  to   { transform: rotate(15deg); }
}

.loading-title {
  font-size: clamp(9px, 2vw, 13px);
  color: var(--grass);
  text-shadow: 2px 2px 0 #000;
  text-align: center;
  animation: blink 1.2s step-end infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%       { opacity: 0.3; }
}

.progress-track {
  width: 100%;
  max-width: 480px;
  height: 28px;
  background: #0D0D0D;
  border: 4px solid;
  border-color: var(--border-lo) var(--border-hi) var(--border-hi) var(--border-lo);
  box-shadow: inset 2px 2px 0 rgba(0,0,0,.5);
  overflow: hidden;
}

#progress-bar {
  height: 100%;
  background: linear-gradient(90deg, #3D7A18, #5AAF25, #7BC54A);
  width: 0%;
  transition: width .3s ease;
  box-shadow: inset 0 3px 0 rgba(255,255,255,.2);
}

#progress-label {
  font-size: 7px;
  color: var(--text-dim);
  text-align: center;
  letter-spacing: 1px;
}

#status-msg {
  font-size: 7px;
  color: var(--text-gold);
  text-align: center;
  min-height: 20px;
}

.status-error { color: var(--redstone) !important; }

/* ── Results screen ───────────────────────────────────────────── */
#screen-results { display: none; }

.results-toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
  padding: 12px 16px;
  background: #111;
  border: 3px solid #333;
  border-bottom: 3px solid #555;
}

.results-toolbar h2 {
  font-size: clamp(8px, 2vw, 12px);
  color: var(--grass);
  text-shadow: 2px 2px 0 #000;
}

.toolbar-actions { display: flex; gap: 10px; }

#results-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 24px;
}

.meta-chip {
  font-size: 7px;
  padding: 5px 10px;
  background: #111;
  border: 2px solid #333;
  color: var(--text-dim);
  white-space: nowrap;
}

.error-chip { border-color: var(--redstone) !important; color: #FF8080 !important; }

/* ── Section ──────────────────────────────────────────────────── */
.result-section { margin-bottom: 40px; }

.section-title {
  font-size: clamp(8px, 2vw, 13px);
  color: var(--text-gold);
  text-shadow: 2px 2px 0 #000;
  margin-bottom: 16px;
  padding: 8px 12px;
  background: linear-gradient(90deg, rgba(255,170,0,.15) 0%, transparent 80%);
  border-left: 5px solid var(--gold);
  display: flex;
  align-items: center;
  gap: 8px;
}

/* ── Cards grid ───────────────────────────────────────────────── */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* ── Flight card ──────────────────────────────────────────────── */
.flight-card {
  background: var(--card-bg);
  border: 4px solid;
  border-color: var(--border-hi) var(--border-lo) var(--border-lo) var(--border-hi);
  box-shadow: 4px 4px 0 rgba(0,0,0,.5), inset 0 1px 0 rgba(255,255,255,.05);
  display: flex;
  flex-direction: column;
  transition: transform .1s, box-shadow .1s;
  position: relative;
  overflow: hidden;
}

.flight-card:hover {
  transform: translateY(-3px);
  box-shadow: 4px 7px 0 rgba(0,0,0,.5);
}

.flight-card.direct {
  border-color: var(--emerald) var(--grass-dark) var(--grass-dark) var(--emerald);
}

.flight-card.direct::after {
  content: '★ DIRECT';
  position: absolute;
  top: 8px;
  right: -1px;
  font-size: 6px;
  background: var(--emerald);
  color: #000;
  padding: 3px 8px;
  border-left: 3px solid var(--grass-dark);
  text-shadow: none;
}

/* ── Airline bar ──────────────────────────────────────────────── */
.card-airline-bar {
  padding: 8px 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 3px solid rgba(0,0,0,.4);
}

.airline-name {
  font-size: clamp(5px, 1.2vw, 7px);
  color: #fff;
  text-shadow: 1px 1px 0 rgba(0,0,0,.8);
  letter-spacing: 1px;
}

.airline-code {
  font-size: 9px;
  color: rgba(255,255,255,.7);
  font-weight: bold;
}

/* ── Card body ────────────────────────────────────────────────── */
.card-body {
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
}

.route-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}

.city {
  font-size: clamp(9px, 2vw, 12px);
  color: var(--diamond);
  text-shadow: 1px 1px 0 #000;
}

.arrow {
  font-size: 7px;
  color: var(--text-dim);
  flex: 1;
  text-align: center;
  overflow: hidden;
  white-space: nowrap;
}

.times-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 4px;
}

.time {
  font-size: clamp(7px, 1.4vw, 9px);
  color: var(--text-bright);
}

.time.dep { color: #80D0FF; }
.time.arr { color: #FFD080; }

.duration {
  font-size: 6px;
  color: var(--text-dim);
  white-space: nowrap;
}

.meta-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.stops-badge {
  font-size: 6px;
  padding: 3px 8px;
  border: 2px solid;
  letter-spacing: 1px;
}

.direct-badge {
  background: rgba(23,221,98,.15);
  border-color: var(--emerald);
  color: var(--emerald);
}

.stop-badge {
  background: rgba(255,170,0,.1);
  border-color: var(--gold-dark);
  color: var(--text-gold);
}

.dest-flag {
  font-size: 7px;
  color: var(--text-dim);
}

/* ── Card footer ──────────────────────────────────────────────── */
.card-footer {
  padding: 12px;
  border-top: 3px solid #111;
  background: #1A1A1A;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
}

.price {
  font-size: clamp(10px, 2.2vw, 15px);
  color: var(--gold);
  text-shadow: 2px 2px 0 #000;
}

.book-btn {
  font-family: var(--font);
  font-size: clamp(6px, 1.2vw, 7px);
  padding: 8px 10px;
  background: linear-gradient(180deg, #7BC54A 0%, #5AAF25 50%, #3D7A18 100%);
  color: #fff;
  text-decoration: none;
  border: 3px solid;
  border-color: #A0E060 #1C4A0A #1C4A0A #A0E060;
  box-shadow: 0 3px 0 #1C4A0A;
  text-shadow: 1px 1px 0 rgba(0,0,0,.6);
  white-space: nowrap;
  letter-spacing: .5px;
  display: inline-block;
}

.book-btn:hover { filter: brightness(1.15); }
.book-btn:active { transform: translateY(2px); box-shadow: none; }

/* ── No results ───────────────────────────────────────────────── */
.no-results {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-dim);
}

.creeper-face { font-size: 64px; margin-bottom: 20px; }
.no-results p { font-size: 9px; margin-bottom: 12px; text-shadow: 1px 1px 0 #000; }
.no-results .sub { font-size: 7px; color: #777; }

/* ── Error details ────────────────────────────────────────────── */
.error-details {
  margin-top: 20px;
  padding: 12px;
  background: #1A0000;
  border: 3px solid var(--redstone);
  font-size: 7px;
  color: #FF8080;
}

.error-details summary {
  cursor: pointer;
  color: var(--redstone);
  margin-bottom: 8px;
}

.error-details pre { overflow-x: auto; white-space: pre-wrap; line-height: 2; }

/* ── Footer ───────────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 20px;
  font-size: 6px;
  color: #555;
  border-top: 3px solid #222;
}

footer a { color: #666; }

/* ── Scrollbar styling ────────────────────────────────────────── */
::-webkit-scrollbar { width: 12px; background: #111; }
::-webkit-scrollbar-thumb { background: #555; border: 2px solid #333; }
::-webkit-scrollbar-thumb:hover { background: #777; }

/* ── Responsive ───────────────────────────────────────────────── */
@media (max-width: 480px) {
  .cards-grid { grid-template-columns: 1fr; }
  .results-toolbar { flex-direction: column; align-items: flex-start; }
  .setup-box { padding: 20px 14px; }
}