/* =============================================
   ECOSCOPE — STYLESHEET  (Dark / Light / CB)
============================================= */

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

/* ══════════════════════════════════════
   THEME VARIABLES
   body carries data-theme="dark|light|cb"
   Default = dark
══════════════════════════════════════ */

/* ── DARK (default) ── */
:root, [data-theme="dark"] {
  --bg:        #060d06;
  --s1:        #0a150a;
  --s2:        #0f1e0f;
  --s3:        #162716;
  --border:    rgba(100,200,100,0.12);
  --accent:    #5db85d;
  --accent2:   #9ef09e;
  --dim:       #4a6b4a;
  --text:      #cce8cc;
  --muted:     #5a7a5a;
  --bad:       #ff6b6b;
  --warn:      #ffc94d;
  --white:     #f0f8f0;
  --pill-bg:   rgba(93,184,93,0.12);
  --blob1: #1a5c1a; --blob2: #0d3d2a; --blob3: #2a5c0d;
  --noise-opacity: 0.6;
  --shadow-glow: rgba(93,184,93,0.25);
}

/* ── LIGHT ── */
[data-theme="light"] {
  --bg:        #f2f8f2;
  --s1:        #ffffff;
  --s2:        #eaf3ea;
  --s3:        #d4e8d4;
  --border:    rgba(60,140,60,0.18);
  --accent:    #2e8b2e;
  --accent2:   #1a6e1a;
  --dim:       #4a7a4a;
  --text:      #1a3a1a;
  --muted:     #5a7a5a;
  --bad:       #c0392b;
  --warn:      #d4870a;
  --white:     #0d200d;
  --pill-bg:   rgba(46,139,46,0.1);
  --blob1: #a8d8a8; --blob2: #b8e8c8; --blob3: #c8e8a8;
  --noise-opacity: 0.2;
  --shadow-glow: rgba(46,139,46,0.15);
}

/* ── COLOUR-BLIND SAFE (blue/orange, no red/green signal) ── */
[data-theme="cb"] {
  --bg:        #06090f;
  --s1:        #0a0f1a;
  --s2:        #0f1525;
  --s3:        #162035;
  --border:    rgba(100,160,255,0.14);
  --accent:    #4d9fff;
  --accent2:   #8fc4ff;
  --dim:       #4a5a7a;
  --text:      #c8d8f0;
  --muted:     #5a6a8a;
  --bad:       #e07b00;
  --warn:      #ffd700;
  --white:     #eef4ff;
  --pill-bg:   rgba(77,159,255,0.12);
  --blob1: #0d2a5c; --blob2: #0d3a4a; --blob3: #1a2a5c;
  --noise-opacity: 0.5;
  --shadow-glow: rgba(77,159,255,0.2);
}

/* ══════════════════════════════════════
   BASE
══════════════════════════════════════ */
html { scroll-behavior: smooth; }

body {
  font-family: 'Instrument Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  transition: background 0.35s, color 0.35s;
}

body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0;
  opacity: var(--noise-opacity);
  transition: opacity 0.35s;
}

/* ── BACKGROUND BLOBS ── */
.bg { position: fixed; inset: 0; z-index: 0; overflow: hidden; pointer-events: none; }
.bg-blob {
  position: absolute; border-radius: 50%;
  filter: blur(120px); opacity: 0.15;
  animation: float 20s ease-in-out infinite alternate;
  transition: background 0.4s;
}
.b1 { width: 700px; height: 700px; background: radial-gradient(circle, var(--blob1), transparent); top: -200px; left: -200px; animation-duration: 28s; }
.b2 { width: 500px; height: 500px; background: radial-gradient(circle, var(--blob2), transparent); bottom: -100px; right: -100px; animation-duration: 22s; animation-delay: -8s; }
.b3 { width: 400px; height: 400px; background: radial-gradient(circle, var(--blob3), transparent); top: 40%; left: 50%; animation-duration: 18s; animation-delay: -4s; }
@keyframes float { from { transform: translate(0,0) scale(1); } to { transform: translate(30px,40px) scale(1.08); } }

/* ── LAYOUT ── */
.wrap { position: relative; z-index: 1; max-width: 780px; margin: 0 auto; padding: 0 24px 80px; }

/* ══════════════════════════════════════
   HEADER + THEME BAR
══════════════════════════════════════ */
header {
  text-align: center;
  padding: 40px 0 24px;
  position: relative;
}
.logo {
  font-family: 'Fraunces', serif;
  font-size: 1.1rem; font-weight: 300;
  letter-spacing: 0.18em; text-transform: uppercase;
  color: var(--accent2); opacity: 0.9;
}
.logo span { display: inline-block; margin-right: 8px; font-size: 1.3rem; }

.theme-bar {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-top: 14px;
}
.theme-btn {
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--s1);
  color: var(--muted);
  cursor: pointer;
  transition: all 0.2s ease;
}
.theme-btn:hover {
  border-color: var(--accent);
  color: var(--text);
}
.theme-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #000;
  box-shadow: 0 0 14px var(--shadow-glow);
}

/* ══════════════════════════════════════
   PROGRESS
══════════════════════════════════════ */
#progressWrap { margin-bottom: 8px; }
.steps-row { display: flex; justify-content: space-between; margin-bottom: 10px; }
.step-dot {
  display: flex; align-items: center; gap: 8px;
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--muted);
  transition: color 0.3s;
}
.step-dot .dot {
  width: 28px; height: 28px; border-radius: 50%;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Fraunces', serif; font-size: 0.8rem;
  color: var(--muted); transition: all 0.3s;
}
.step-dot.active { color: var(--accent2); }
.step-dot.active .dot { border-color: var(--accent2); color: var(--accent2); box-shadow: 0 0 12px var(--shadow-glow); }
.step-dot.done .dot { background: var(--accent); border-color: var(--accent); color: #000; }
.prog-track { height: 2px; background: var(--s3); border-radius: 999px; overflow: hidden; }
.prog-fill { height: 100%; background: linear-gradient(90deg, var(--accent), var(--accent2)); border-radius: 999px; transition: width 0.6s cubic-bezier(.4,0,.2,1); width: 0%; }

/* ══════════════════════════════════════
   PANELS
══════════════════════════════════════ */
.panel { animation: rise 0.45s cubic-bezier(.4,0,.2,1); }
@keyframes rise { from { opacity: 0; transform: translateY(24px); } to { opacity: 1; transform: translateY(0); } }
.hidden { display: none !important; }

/* ══════════════════════════════════════
   LANDING
══════════════════════════════════════ */
#landing {
  display: grid; grid-template-columns: 1fr auto;
  gap: 48px; align-items: center;
  min-height: calc(100vh - 220px);
  padding: 40px 0;
}
.land-text h1 {
  font-family: 'Fraunces', serif;
  font-size: clamp(2.8rem,7vw,4.2rem);
  font-weight: 900; line-height: 1.05;
  color: var(--white); margin-bottom: 20px;
}
.land-text h1 em { font-style: italic; color: var(--accent2); }
.land-text p { color: var(--dim); font-size: 0.95rem; line-height: 1.75; max-width: 380px; margin-bottom: 36px; }
.stats-row { display: flex; gap: 24px; margin-bottom: 36px; }
.stat { background: var(--s2); border: 1px solid var(--border); border-radius: 12px; padding: 14px 18px; transition: background 0.35s, border 0.35s; }
.stat-num { font-family: 'Fraunces', serif; font-size: 1.6rem; font-weight: 700; color: var(--accent2); display: block; }
.stat-lbl { font-size: 0.7rem; color: var(--muted); letter-spacing: 0.05em; text-transform: uppercase; }

/* ── EARTH ── */
.earth-wrap { display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.earth {
  width: 200px; height: 200px; border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, var(--blob1), var(--bg) 70%);
  border: 1px solid var(--border);
  box-shadow: 0 0 60px var(--shadow-glow), inset 0 0 40px rgba(0,0,0,0.4);
  display: flex; align-items: center; justify-content: center;
  position: relative; animation: earthglow 6s ease-in-out infinite alternate;
  transition: background 0.4s;
}
.earth::before {
  content: ''; position: absolute; inset: 0; border-radius: 50%;
  background: conic-gradient(transparent 0deg, rgba(255,255,255,0.04) 60deg, transparent 120deg);
  animation: shimmer 6s linear infinite;
}
@keyframes earthglow {
  from { box-shadow: 0 0 60px var(--shadow-glow), inset 0 0 40px rgba(0,0,0,0.4); }
  to   { box-shadow: 0 0 100px var(--shadow-glow), inset 0 0 40px rgba(0,0,0,0.4); }
}
@keyframes shimmer { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }
.earth-emoji { font-size: 4.5rem; filter: drop-shadow(0 0 20px var(--shadow-glow)); }
.orbit { position: absolute; border-radius: 50%; border: 1px solid var(--border); animation: orbit 8s linear infinite; }
.o1 { width: 260px; height: 260px; animation-duration: 12s; }
.o2 { width: 310px; height: 310px; animation-duration: 18s; animation-direction: reverse; }
@keyframes orbit { from { transform: rotate(0deg); } to { transform: rotate(360deg); } }

/* ══════════════════════════════════════
   STEP HEADER
══════════════════════════════════════ */
.step-hd { padding: 36px 0 28px; }
.step-tag { font-size: 0.7rem; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--accent); margin-bottom: 8px; display: block; }
.step-hd h2 { font-family: 'Fraunces', serif; font-size: 2.2rem; font-weight: 700; color: var(--white); margin-bottom: 6px; }
.step-hd p { color: var(--muted); font-size: 0.88rem; }

/* ══════════════════════════════════════
   QUESTION GRID
══════════════════════════════════════ */
.q-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.q-block { display: flex; flex-direction: column; gap: 10px; }
.q-block.full { grid-column: 1 / -1; }
.q-lbl { font-size: 0.82rem; font-weight: 600; color: var(--text); letter-spacing: 0.01em; }

/* ══════════════════════════════════════
   PILLS
══════════════════════════════════════ */
.pills { display: flex; flex-wrap: wrap; gap: 7px; }
.pill input { display: none; }
.pill span {
  display: block; padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--s1);
  color: var(--muted);
  font-size: 0.8rem; font-weight: 500;
  cursor: pointer; transition: all 0.18s ease;
  white-space: nowrap;
}
.pill:hover span { border-color: var(--accent); color: var(--text); background: var(--s2); }
.pill input:checked + span {
  background: var(--pill-bg);
  border-color: var(--accent2); color: var(--accent2);
  box-shadow: 0 0 14px var(--shadow-glow);
}

/* CB mode: add shape indicator on checked pill for extra clarity */
[data-theme="cb"] .pill input:checked + span::before {
  content: '✓ ';
  font-weight: 700;
}

.pills.error .pill span { border-color: var(--bad) !important; opacity: 0.8; }

/* ══════════════════════════════════════
   BUTTONS
══════════════════════════════════════ */
.btn {
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.85rem; font-weight: 600;
  padding: 12px 26px; border-radius: 999px;
  cursor: pointer; border: none; transition: all 0.2s;
  letter-spacing: 0.02em;
}
.btn-p { background: var(--accent); color: #000; box-shadow: 0 0 24px var(--shadow-glow); }
.btn-p:hover { background: var(--accent2); box-shadow: 0 0 32px var(--shadow-glow); transform: translateY(-1px); }
.btn-s { background: transparent; color: var(--muted); border: 1px solid var(--border); }
.btn-s:hover { border-color: var(--accent); color: var(--text); }

.nav { display: flex; justify-content: flex-end; gap: 12px; margin-top: 36px; padding-bottom: 40px; }

/* ══════════════════════════════════════
   RESULTS
══════════════════════════════════════ */
.results-top {
  display: grid; grid-template-columns: auto 1fr;
  gap: 40px; align-items: center;
  padding: 40px 0 36px;
}
.ring-wrap { position: relative; flex-shrink: 0; }
.ring-svg { width: 150px; height: 150px; transform: rotate(-90deg); }
.ring-inner { position: absolute; inset: 0; display: flex; flex-direction: column; align-items: center; justify-content: center; }
.ring-num { font-family: 'Fraunces', serif; font-size: 2.8rem; font-weight: 900; color: var(--white); line-height: 1; }
.ring-sub { font-size: 0.72rem; color: var(--muted); margin-top: 2px; }
.result-info h2 { font-family: 'Fraunces', serif; font-size: 2rem; font-weight: 700; color: var(--accent2); margin-bottom: 10px; }
.result-info .co2 { font-family: 'Fraunces', serif; font-size: 1.1rem; color: var(--text); margin-bottom: 8px; }
.result-info p { color: var(--muted); font-size: 0.88rem; line-height: 1.65; max-width: 420px; }

/* ── CARDS ── */
.cards { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 32px; }
.card { background: var(--s1); border: 1px solid var(--border); border-radius: 18px; padding: 26px; transition: background 0.35s, border 0.35s; }
.card-title { font-family: 'Fraunces', serif; font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 20px; }

/* ── BARS ── */
.bar-row { margin-bottom: 18px; }
.bar-top { display: flex; justify-content: space-between; margin-bottom: 7px; }
.bar-top strong { font-size: 0.78rem; color: var(--text); }
.bar-top span { font-size: 0.74rem; color: var(--muted); }
.bar-track { height: 7px; background: var(--s3); border-radius: 999px; overflow: hidden; }
.bar-fill { height: 100%; border-radius: 999px; width: 0%; transition: width 1.1s cubic-bezier(.4,0,.2,1); }

/* ── TIPS ── */
.tip { padding: 13px 15px; border-radius: 10px; border-left: 3px solid; margin-bottom: 11px; background: var(--s2); transition: background 0.35s; }
.tip.high   { border-color: var(--bad); }
.tip.medium { border-color: var(--warn); }
.tip.low    { border-color: var(--accent); }
.tip-title  { font-size: 0.8rem; font-weight: 600; color: var(--text); margin-bottom: 4px; }
.tip-desc   { font-size: 0.76rem; color: var(--muted); line-height: 1.5; }
.tip-save   { font-size: 0.72rem; color: var(--accent); margin-top: 4px; font-style: italic; }

/* CB mode: add text labels to tip priority borders */
[data-theme="cb"] .tip-title::before {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 700;
  border-radius: 4px;
  padding: 1px 5px;
  margin-right: 6px;
  vertical-align: middle;
}
[data-theme="cb"] .tip.high   .tip-title::before { content: 'HIGH';   background: var(--bad);  color: #000; }
[data-theme="cb"] .tip.medium .tip-title::before { content: 'MED';    background: var(--warn); color: #000; }
[data-theme="cb"] .tip.low    .tip-title::before { content: 'LOW';    background: var(--accent); color: #000; }

/* ── COMPARISON ── */
.compare { background: var(--s1); border: 1px solid var(--border); border-radius: 18px; padding: 26px; margin-bottom: 20px; transition: background 0.35s; }
.compare-title { font-family: 'Fraunces', serif; font-size: 0.95rem; font-weight: 700; color: var(--text); margin-bottom: 18px; }
.compare-bars { display: flex; flex-direction: column; gap: 12px; }
.cmp-row { display: grid; grid-template-columns: 120px 1fr 80px; gap: 12px; align-items: center; }
.cmp-lbl { font-size: 0.76rem; color: var(--muted); text-align: right; }
.cmp-track { height: 10px; background: var(--s3); border-radius: 999px; overflow: hidden; }
.cmp-fill { height: 100%; border-radius: 999px; transition: width 1.3s cubic-bezier(.4,0,.2,1); }
.cmp-val { font-size: 0.74rem; color: var(--text); font-weight: 600; }

/* ── RESET ── */
.btn-reset {
  display: block; margin: 0 auto 20px;
  background: transparent; color: var(--muted);
  font-family: 'Instrument Sans', sans-serif;
  font-size: 0.82rem; font-weight: 500;
  padding: 10px 22px; border-radius: 999px;
  border: 1px solid var(--border); cursor: pointer;
  transition: all 0.2s;
}
.btn-reset:hover { border-color: var(--accent); color: var(--text); }

/* ══════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════ */
@media (max-width: 600px) {
  #landing { grid-template-columns: 1fr; min-height: auto; padding: 20px 0; }
  .earth-wrap { display: none; }
  .q-grid { grid-template-columns: 1fr; }
  .results-top { grid-template-columns: 1fr; text-align: center; }
  .ring-wrap { margin: 0 auto; }
  .cards { grid-template-columns: 1fr; }
  .steps-row .step-dot span { display: none; }
  .stats-row { flex-wrap: wrap; }
}