:root {
  --bg: #fdf7ee;
  --bg-2: #fbf1e3;
  --surface: rgba(255, 255, 255, 0.7);
  --surface-2: rgba(255, 255, 255, 0.95);
  --border: rgba(80, 60, 90, 0.10);
  --border-2: rgba(80, 60, 90, 0.18);
  --text: #2a2540;
  --text-soft: #4a4360;
  --muted: #847a96;
  --brand: #6fbcdb;        /* pastel sky blue */
  --brand-2: #a4c8ed;      /* lighter blue */
  --accent: #f6c177;       /* pastel apricot */
  --pink: #f3a6c4;         /* pastel pink */
  --mint: #a8e0c4;         /* pastel mint */
  --lilac: #c9b8e8;        /* pastel lilac */
  --success: #65c08a;
  --danger: #e4848f;
  --radius: 14px;
  --max: 1180px;
  --shadow-sm: 0 4px 14px -6px rgba(80, 60, 120, 0.18);
  --shadow-md: 0 10px 30px -12px rgba(80, 60, 120, 0.22);
  --shadow-lg: 0 30px 70px -20px rgba(150, 120, 180, 0.30), 0 10px 30px -10px rgba(80,60,120,.15);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }

/* ===== Background — pastel sky ===== */
.bg-aurora {
  position: fixed; inset: 0; z-index: -1; overflow: hidden;
  background:
    radial-gradient(1400px 700px at 50% -10%, #ffe8d1 0%, transparent 60%),
    linear-gradient(180deg, #fdf7ee 0%, #f5ecff 100%);
}
.blob {
  position: absolute; border-radius: 50%; filter: blur(110px); opacity: .55;
  animation: drift 22s ease-in-out infinite;
}
.blob-a { width: 560px; height: 560px; top: -140px; left: -100px; background: #ffd4a8; }
.blob-b { width: 480px; height: 480px; top: 8%; right: -140px; background: #f3a6c4; opacity:.45; animation-delay: -7s; }
.blob-c { width: 640px; height: 640px; top: 50%; left: 25%; background: #b8dcf3; opacity:.5; animation-delay: -13s; }
@keyframes drift { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(40px,-30px) scale(1.08); } }
.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(80,60,120,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(80,60,120,0.04) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 30%, transparent 75%);
}

/* ===== Nav ===== */
.nav {
  display: flex; align-items: center; gap: 32px;
  max-width: var(--max); margin: 0 auto;
  padding: 22px 28px;
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(253,247,238,.85), rgba(253,247,238,.4));
}
.brand { display:flex; align-items:center; gap:10px; font-weight: 700; letter-spacing:-.01em; color: var(--text); }
.brand-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: transparent;
  border: 1.5px solid var(--brand);
  display: grid; place-items: center; color: var(--brand);
}
.brand-mark svg { width: 20px; height: 20px; }
.brand-name { font-size: 17px; }
.nav-links { display: flex; gap: 28px; margin-left: 16px; flex: 1; }
.nav-links a { color: var(--text-soft); font-size: 14.5px; font-weight: 500; transition: color .15s; }
.nav-links a:hover { color: var(--text); }
.nav-cta { display: flex; gap: 10px; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 10px 18px; border-radius: 10px;
  font-weight: 600; font-size: 14.5px;
  border: 1px solid transparent;
  transition: transform .15s ease, background .15s ease, border-color .15s ease, box-shadow .2s ease, opacity .15s;
  cursor: pointer; white-space: nowrap; font-family: inherit;
}
.btn-primary {
  background: var(--brand);
  color: #2a2540;
  box-shadow: 0 10px 26px -10px rgba(111,188,219,.55);
}
.btn-primary:hover { transform: translateY(-1px); background: #5fb0d2; box-shadow: 0 16px 32px -10px rgba(111,188,219,.7); }
.btn-primary:disabled { opacity: .6; cursor: wait; transform: none; }
.btn-ghost { background: var(--surface); border-color: var(--border-2); color: var(--text); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-lg { padding: 14px 22px; font-size: 15.5px; border-radius: 12px; }
.btn-block { width: 100%; }

/* ===== Hero ===== */
.hero {
  max-width: var(--max); margin: 0 auto;
  padding: 80px 28px 30px;
  text-align: center;
}
.badge {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 6px 14px 6px 10px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border);
  font-size: 13px; color: var(--text-soft); margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--success); box-shadow: 0 0 10px rgba(101,192,138,.6); }
.hero-title {
  font-size: clamp(40px, 6.4vw, 76px);
  line-height: 1.04; letter-spacing: -0.035em;
  font-weight: 700; margin: 0 0 22px;
  color: var(--text);
}
.hero-title em {
  font-family: 'Instrument Serif', Georgia, serif;
  font-style: italic; font-weight: 400;
  background: linear-gradient(135deg, var(--brand), #e89870);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  display: inline-block; padding: 0 .12em .04em; margin-right: -.08em;
}
.hero-sub { font-size: clamp(16px, 1.5vw, 19px); color: var(--text-soft); max-width: 660px; margin: 0 auto 36px; }
.hero-cta { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.hero-meta { color: var(--muted); font-size: 13px; margin-top: 18px; }

/* ===== Sections ===== */
.section { max-width: var(--max); margin: 0 auto; padding: 100px 28px; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 56px; }
.eyebrow {
  display: inline-block; font-size: 12px; letter-spacing: .14em; text-transform: uppercase;
  color: #4a9bc1; font-weight: 700; margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(32px, 4vw, 52px);
  line-height: 1.08; letter-spacing: -.03em; font-weight: 700; margin: 0 0 18px;
  color: var(--text);
}
.section-head h2 em {
  font-family: 'Instrument Serif', serif; font-style: italic; font-weight: 400;
  background: linear-gradient(135deg, var(--brand), #e89870);
  -webkit-background-clip: text; background-clip: text; color: transparent;
  display: inline-block; padding: 0 .12em .04em; margin-right: -.08em;
}
.section-head h2 .muted { color: var(--muted); font-weight: 500; }
.section-head p { color: var(--text-soft); font-size: 17px; margin: 0; }

/* ===== APP ===== */
.app-section { max-width: 1280px; margin: 40px auto 80px; padding: 0 24px; scroll-margin-top: 80px; }
.app-shell {
  display: grid; grid-template-columns: 340px 1fr; gap: 22px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 22px;
  padding: 22px;
  box-shadow: var(--shadow-lg);
}
.app-controls {
  background: linear-gradient(180deg, #fdf3ff 0%, #eaf6ff 100%);
  border: 1px solid var(--border);
  border-radius: 16px; padding: 22px;
  position: sticky; top: 90px; align-self: start;
  max-height: calc(100vh - 110px); overflow-y: auto;
}
.app-controls-head h2 {
  margin: 6px 0 18px; font-size: 22px; letter-spacing: -.02em; color: var(--text);
}
.control-block { margin-bottom: 20px; }
.control-label {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 13px; color: var(--text-soft); margin-bottom: 10px; font-weight: 500;
}
.control-val strong { color: var(--text); font-weight: 700; }
.control-sub { font-size: 11px; color: var(--muted); margin: 8px 0 4px; text-transform: uppercase; letter-spacing: .08em; }
.control-meta { color: var(--muted); font-size: 12px; text-align: center; margin-top: 12px; }

/* sliders */
input[type=range] {
  -webkit-appearance: none; appearance: none;
  width: 100%; height: 6px; border-radius: 999px;
  background: linear-gradient(90deg, var(--brand), var(--accent));
  outline: none; cursor: pointer; margin: 0;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: none; cursor: grab;
  box-shadow: 0 3px 8px rgba(80,60,120,.3), 0 0 0 3px rgba(111,188,219,.25);
}
input[type=range]::-moz-range-thumb {
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff; border: none; cursor: grab;
  box-shadow: 0 3px 8px rgba(80,60,120,.3), 0 0 0 3px rgba(111,188,219,.25);
}

/* chips */
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.chip {
  font-size: 12.5px; padding: 6px 11px; border-radius: 999px;
  background: rgba(255,255,255,.7); border: 1px solid var(--border-2); color: var(--text-soft);
  cursor: pointer; transition: all .15s; font-family: inherit;
}
.chip:hover { background: #fff; color: var(--text); }
.chip-on { background: #d6ecf8; border-color: var(--brand); color: var(--text); font-weight: 600; }

/* segmented control */
.seg {
  display: flex; gap: 4px; padding: 4px;
  background: rgba(255,255,255,.7); border-radius: 10px; border: 1px solid var(--border-2);
}
.seg button {
  flex: 1; padding: 8px 10px; font-size: 13px; font-weight: 500;
  background: transparent; border: none; color: var(--text-soft);
  border-radius: 7px; cursor: pointer; font-family: inherit;
  transition: all .15s;
}
.seg button:hover { color: var(--text); }
.seg button.on {
  background: var(--brand);
  color: #2a2540; font-weight: 600;
}
.seg-sm button { padding: 6px 12px; font-size: 12px; }

/* Results */
.app-results { min-height: 600px; }
.results-head {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  margin-bottom: 18px; flex-wrap: wrap;
}
.results-head h2 { margin: 0; font-size: 22px; letter-spacing: -.02em; color: var(--text); }
.results-meta {
  display: flex; gap: 14px; align-items: center;
  font-size: 13px; color: var(--text-soft); flex-wrap: wrap;
}
.results-meta strong { color: var(--text); }
.meta-left { white-space: nowrap; }

.results-grid {
  display: grid; gap: 14px;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
}

.loading, .empty {
  grid-column: 1 / -1;
  text-align: center; padding: 80px 20px;
  color: var(--text-soft);
  background: rgba(255,255,255,.5);
  border: 1px dashed var(--border-2); border-radius: 16px;
}
.empty strong { color: var(--text); }
.spinner {
  width: 40px; height: 40px; margin: 0 auto 18px;
  border: 3px solid rgba(80,60,120,.12);
  border-top-color: var(--brand);
  border-radius: 50%; animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Result card */
.result {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px; display: flex; flex-direction: column; gap: 14px;
  transition: transform .2s, border-color .2s, box-shadow .2s;
  box-shadow: var(--shadow-sm);
}
.result:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.result.great {
  border-color: var(--brand);
  box-shadow: 0 14px 32px -16px rgba(111,188,219,.7);
  background: linear-gradient(180deg, #ffffff, #f3faff);
}
.result.good { border-color: rgba(111,188,219,.5); }
.result.poor { opacity: .7; }

.result-head { display: flex; align-items: center; gap: 12px; }
.result-flag { font-size: 28px; line-height: 1; }
.result-id { flex: 1; min-width: 0; }
.result-name { font-weight: 600; font-size: 15px; letter-spacing: -.01em; color: var(--text); }
.result-country { font-size: 12px; color: var(--muted); margin-top: 2px; }
.result-score { text-align: right; }
.score-num {
  font-family: 'Instrument Serif', serif;
  font-size: 28px; line-height: 1;
  background: linear-gradient(135deg, var(--brand), #e89870);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.result.poor .score-num {
  background: none; -webkit-text-fill-color: var(--muted); color: var(--muted);
}
.score-pct {
  font-size: 16px; margin-left: 1px; opacity: .85;
  color: var(--brand); -webkit-text-fill-color: var(--brand);
  background: none;
}
.result.poor .score-pct { color: var(--muted); -webkit-text-fill-color: var(--muted); }
.score-lbl { font-size: 10px; color: var(--muted); text-transform: uppercase; letter-spacing: .1em; margin-top: 2px; }

.result-temp {
  display: flex; align-items: center; gap: 14px;
  padding: 12px 14px;
  background: linear-gradient(135deg, #fff7e8, #fef0e0);
  border-radius: 12px; border: 1px solid rgba(246,193,119,.3);
}
.temp-big {
  font-family: 'Instrument Serif', serif;
  font-size: 48px; line-height: 1; color: #e89870;
  letter-spacing: -.02em;
}
.temp-meta { flex: 1; min-width: 0; text-align: right; margin-left: auto; }
.temp-emoji { font-size: 22px; line-height: 1; }
.temp-cond { font-size: 13px; color: var(--text); margin-top: 4px; font-weight: 500; }
.temp-range { font-size: 11px; color: var(--muted); margin-top: 2px; }

.result-stats {
  display: grid; grid-template-columns: repeat(3,1fr); gap: 6px;
  font-size: 12px; color: var(--text-soft);
}
.result-stats > div {
  display: flex; align-items: center; gap: 4px;
  padding: 6px 8px; background: #f7f3fb;
  border-radius: 8px;
}

/* "From" picker */
.from-row { display: flex; gap: 6px; }
.from-input {
  flex: 1; min-width: 0;
  padding: 9px 12px; font-size: 14px; font-family: inherit;
  background: #fff; border: 1px solid var(--border-2); border-radius: 9px;
  color: var(--text); outline: none;
  transition: border-color .15s, box-shadow .15s;
}
.from-input:focus { border-color: var(--brand); box-shadow: 0 0 0 3px rgba(111,188,219,.2); }
.from-btn { padding: 8px 12px; font-size: 14px; }
.from-hint { font-size: 11.5px; color: var(--muted); margin-top: 6px; }
.from-error { font-size: 12px; color: var(--danger); margin-top: 6px; }
.from-pill {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 8px 8px 12px; border-radius: 10px;
  background: #d6ecf8; border: 1px solid var(--brand);
  color: var(--text); font-size: 13.5px;
}
.from-pill-icon { font-size: 14px; }
.from-pill-text { flex: 1; min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.from-pill-text strong { font-weight: 700; }
.from-pill-clear {
  width: 22px; height: 22px; border-radius: 50%;
  border: none; background: rgba(0,0,0,.08); color: var(--text);
  cursor: pointer; font-size: 16px; line-height: 1;
  display: grid; place-items: center; padding: 0;
  transition: background .15s;
}
.from-pill-clear:hover { background: rgba(0,0,0,.18); }

/* Result flight info */
.result-fly {
  display: flex; align-items: center; gap: 8px;
  padding: 8px 10px; border-radius: 9px;
  background: #eaf6ff;
  border: 1px solid rgba(111,188,219,.4);
  font-size: 12.5px; color: var(--text);
}
.result-fly strong { font-weight: 700; }
.result-fly-dist { margin-left: auto; color: var(--muted); font-size: 11.5px; }

.meta-mute { color: var(--muted); }

.match-bar { height: 5px; border-radius: 999px; background: rgba(80,60,120,.08); overflow: hidden; }
.match-bar > div { height: 100%; background: linear-gradient(90deg, var(--brand), var(--accent)); border-radius: 999px; transition: width .4s ease; }

/* ===== Features ===== */
.features { display: grid; gap: 18px; grid-template-columns: repeat(6, 1fr); }
.feature {
  grid-column: span 2;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 18px; padding: 28px;
  transition: transform .2s, border-color .2s, box-shadow .2s;
  box-shadow: var(--shadow-sm);
}
.feature:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.feature-lg { grid-column: span 3; }
/* Variety of pastel tints for the feature icons */
.feature:nth-child(1) .feature-icon { background: linear-gradient(135deg, var(--brand), var(--mint)); }
.feature:nth-child(2) .feature-icon { background: linear-gradient(135deg, var(--pink), var(--accent)); }
.feature:nth-child(3) .feature-icon { background: linear-gradient(135deg, var(--lilac), var(--brand)); }
.feature:nth-child(4) .feature-icon { background: linear-gradient(135deg, var(--accent), var(--pink)); }
.feature:nth-child(5) .feature-icon { background: linear-gradient(135deg, var(--mint), var(--brand)); }
.feature-icon {
  width: 44px; height: 44px; border-radius: 11px;
  display: grid; place-items: center; color: #2a2540;
  background: linear-gradient(135deg, var(--brand), var(--accent));
  margin-bottom: 18px; box-shadow: 0 10px 22px -10px rgba(111,188,219,.55);
}
.feature-icon svg { width: 22px; height: 22px; }
.feature h3 { margin: 0 0 8px; font-size: 19px; letter-spacing: -.01em; color: var(--text); }
.feature p { margin: 0; color: var(--text-soft); font-size: 15px; }

/* ===== CTA ===== */
.section-cta { padding: 60px 28px 100px; }
.cta-card {
  max-width: 980px; margin: 0 auto;
  border-radius: 24px; padding: 72px 32px;
  text-align: center;
  background:
    radial-gradient(800px 300px at 50% -20%, rgba(243,166,196,.35), transparent 60%),
    linear-gradient(180deg, #ffffff, #faf3ff);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}
.cta-card h2 {
  font-size: clamp(32px, 4.4vw, 56px); line-height: 1.05; letter-spacing: -.03em;
  margin: 0 0 14px; font-weight: 700; color: var(--text);
}
.cta-card h2 em {
  font-family: 'Instrument Serif', serif; font-style: italic; font-weight: 400;
  background: linear-gradient(135deg, var(--brand), #e89870);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.cta-card p { color: var(--text-soft); font-size: 17px; margin: 0 0 32px; }

/* ===== Footer ===== */
.footer { border-top: 1px solid var(--border); padding: 40px 28px 28px; }
.footer-inner {
  max-width: var(--max); margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap;
}
.footer-meta { color: var(--text-soft); font-size: 14px; }
.footer-meta a { color: #4a9bc1; }
.footer-bottom {
  max-width: var(--max); margin: 24px auto 0;
  padding-top: 18px; border-top: 1px solid var(--border);
  color: var(--muted); font-size: 13px; text-align: center;
}

/* ===== Responsive ===== */
@media (max-width: 980px) {
  .steps { grid-template-columns: 1fr; }
  .app-shell { grid-template-columns: 1fr; }
  .app-controls { position: static; max-height: none; }
}
@media (max-width: 880px) {
  .nav-links { display: none; }
  .features { grid-template-columns: 1fr; }
  .feature, .feature-lg { grid-column: span 1; }
  .results-grid { grid-template-columns: 1fr; }
}