:root {
  --ink: #17332f;
  --muted: #60756f;
  --paper: #f5f2e9;
  --panel: rgba(255, 255, 255, 0.9);
  --line: #d8ded7;
  --mint: #2fb895;
  --mint-dark: #0b715c;
  --coral: #ff6d61;
  --sun: #f3b642;
  --blue: #1777d2;
  --shadow: 0 22px 70px rgba(24, 57, 50, 0.13);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  background:
    radial-gradient(circle at 8% 2%, rgba(243, 182, 66, 0.2), transparent 26rem),
    radial-gradient(circle at 94% 18%, rgba(47, 184, 149, 0.2), transparent 30rem),
    linear-gradient(rgba(23, 51, 47, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(23, 51, 47, 0.045) 1px, transparent 1px),
    var(--paper);
  background-size: auto, auto, 28px 28px, 28px 28px, auto;
  font-family: Bahnschrift, "Trebuchet MS", sans-serif;
}

button, input, select { font: inherit; }

button, .button-link, .file-button {
  min-height: 46px;
  border: 0;
  border-radius: 14px;
  padding: 0.72rem 1rem;
  color: #fff;
  background: var(--ink);
  font-weight: 760;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, opacity 160ms ease;
}

button:hover, .button-link:hover, .file-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(23, 51, 47, 0.18);
}

button:disabled { cursor: not-allowed; opacity: 0.45; transform: none; box-shadow: none; }

button:focus-visible, a:focus-visible, input:focus-visible, select:focus-visible {
  outline: 3px solid rgba(23, 119, 210, 0.38);
  outline-offset: 3px;
}

a { color: inherit; }

.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.78rem clamp(1rem, 4vw, 3.5rem);
  border-bottom: 1px solid rgba(23, 51, 47, 0.12);
  background: rgba(250, 249, 244, 0.92);
  backdrop-filter: blur(18px);
}

.brand { display: flex; align-items: center; gap: 0.75rem; text-decoration: none; }
.brand-mark {
  display: grid;
  place-items: center;
  width: 45px;
  height: 45px;
  border-radius: 15px 15px 15px 5px;
  color: #fff;
  background: var(--coral);
  font: 800 1.55rem Georgia, serif;
  transform: rotate(-2deg);
}
.brand-copy strong { display: block; font-size: 1rem; letter-spacing: 0.03em; }
.brand-copy span { display: block; color: var(--muted); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; }

.tool-nav { display: flex; align-items: center; gap: 0.45rem; }
.tool-nav a {
  border-radius: 999px;
  padding: 0.65rem 0.86rem;
  color: var(--muted);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 760;
}
.tool-nav a:hover, .tool-nav a[aria-current="page"] { color: var(--ink); background: #fff; box-shadow: 0 5px 18px rgba(23, 51, 47, 0.1); }

.hero {
  width: min(1180px, calc(100% - 2rem));
  margin: 1.2rem auto 1rem;
  padding: clamp(1.3rem, 4vw, 3rem);
  border: 1px solid rgba(23, 51, 47, 0.13);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.76);
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  right: -8rem;
  top: -10rem;
  width: 25rem;
  height: 25rem;
  border: 4rem solid rgba(47, 184, 149, 0.1);
  border-radius: 50%;
  pointer-events: none;
}

.eyebrow { color: var(--mint-dark); font-size: 0.76rem; font-weight: 850; letter-spacing: 0.17em; text-transform: uppercase; }
.hero h1 {
  max-width: 760px;
  margin: 0.45rem 0 0.6rem;
  font: 800 clamp(2.1rem, 6vw, 4.7rem)/0.95 Georgia, "Times New Roman", serif;
  letter-spacing: -0.045em;
}
.hero p { max-width: 760px; margin: 0; color: var(--muted); font-size: clamp(1rem, 2vw, 1.18rem); line-height: 1.55; }
.truth-row { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 1rem; }
.truth-chip { border: 1px solid #cfe3db; border-radius: 999px; padding: 0.52rem 0.72rem; background: #f5fffb; color: var(--mint-dark); font-size: 0.78rem; font-weight: 760; }

.workspace {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto 6rem;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(290px, 0.7fr);
  gap: 1rem;
}

.panel {
  border: 1px solid rgba(23, 51, 47, 0.13);
  border-radius: 24px;
  padding: clamp(1rem, 3vw, 1.5rem);
  background: var(--panel);
  box-shadow: 0 12px 40px rgba(23, 51, 47, 0.08);
}
.panel + .panel { margin-top: 1rem; }
.panel h2, .panel h3 { margin: 0; font-family: Georgia, "Times New Roman", serif; }
.panel h2 { font-size: clamp(1.45rem, 3vw, 2.1rem); }
.panel p { color: var(--muted); line-height: 1.5; }
.section-head { display: flex; align-items: flex-start; justify-content: space-between; gap: 1rem; margin-bottom: 1rem; }
.status-pill { flex: 0 0 auto; border-radius: 999px; padding: 0.48rem 0.68rem; color: var(--mint-dark); background: #e9fbf5; font-size: 0.76rem; font-weight: 820; }

.camera-stage, .model-stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 340px;
  border-radius: 22px;
  overflow: hidden;
  background:
    linear-gradient(135deg, rgba(47, 184, 149, 0.16), rgba(23, 51, 47, 0.05)),
    #e9eee9;
}
.camera-stage video, .model-stage canvas { width: 100%; height: 100%; min-height: 340px; object-fit: cover; }
.camera-stage video { display: none; }
.camera-stage.live video { display: block; }
.camera-stage.live .empty-state { display: none; }
.empty-state { max-width: 330px; padding: 2rem; text-align: center; }
.empty-icon { width: 72px; height: 72px; margin: 0 auto 0.8rem; border: 2px dashed var(--mint); border-radius: 22px; display: grid; place-items: center; color: var(--mint-dark); font-size: 1.8rem; }
.scan-guide { position: absolute; inset: 12%; border: 2px solid rgba(255,255,255,0.82); border-radius: 50%; box-shadow: 0 0 0 999px rgba(23,51,47,0.18); pointer-events: none; display: none; }
.camera-stage.live .scan-guide { display: block; }

.actions { display: flex; flex-wrap: wrap; gap: 0.55rem; margin-top: 0.8rem; }
.primary { background: var(--mint-dark); }
.accent { background: var(--coral); }
.secondary { color: var(--ink); background: #eef3ef; }
.ghost { color: var(--ink); background: transparent; border: 1px solid var(--line); }
.file-button { display: inline-flex; align-items: center; justify-content: center; background: var(--blue); }
.file-button input { position: absolute; width: 1px; height: 1px; opacity: 0; pointer-events: none; }

.form-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.75rem; }
.field { display: grid; gap: 0.35rem; }
.field.full { grid-column: 1 / -1; }
.field label, .field-label { color: var(--muted); font-size: 0.78rem; font-weight: 760; }
.field input, .field select {
  width: 100%;
  min-height: 46px;
  border: 1px solid var(--line);
  border-radius: 13px;
  padding: 0.7rem 0.78rem;
  color: var(--ink);
  background: #fff;
}
input[type="range"] { accent-color: var(--mint-dark); }

.coverage { display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 0.75rem; margin: 1rem 0; }
.coverage-ring { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: conic-gradient(var(--mint) var(--coverage, 0%), #e2e9e4 0); position: relative; font-weight: 850; }
.coverage-ring::after { content: ""; position: absolute; inset: 7px; border-radius: 50%; background: #fff; }
.coverage-ring span { position: relative; z-index: 1; }
.coverage-bar { height: 10px; border-radius: 999px; overflow: hidden; background: #e3eae5; }
.coverage-bar span { display: block; width: var(--coverage, 0%); height: 100%; border-radius: inherit; background: linear-gradient(90deg, var(--sun), var(--mint)); transition: width 220ms ease; }
.coverage-copy strong, .coverage-copy small { display: block; }
.coverage-copy small { color: var(--muted); margin-top: 0.2rem; }

.gallery { display: grid; grid-template-columns: repeat(auto-fill, minmax(82px, 1fr)); gap: 0.55rem; margin-top: 1rem; }
.thumb { position: relative; aspect-ratio: 1; border-radius: 14px; overflow: hidden; background: #dfe7e1; }
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb button { position: absolute; top: 5px; right: 5px; min-height: 28px; width: 28px; padding: 0; border-radius: 50%; background: rgba(23,51,47,0.82); }

.dropzone { border: 2px dashed #abc2ba; border-radius: 20px; padding: 1.4rem; text-align: center; background: rgba(241, 250, 246, 0.72); }
.dropzone.dragging { border-color: var(--coral); background: #fff4f1; }
.dropzone input { position: absolute; width: 1px; height: 1px; opacity: 0; }
.dropzone strong { display: block; font: 800 1.2rem Georgia, serif; }
.dropzone span { display: block; margin: 0.35rem 0 0.8rem; color: var(--muted); }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 0.55rem; margin-top: 0.8rem; }
.stat { border-radius: 15px; padding: 0.8rem; background: #f0f4f1; }
.stat span { display: block; color: var(--muted); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.08em; }
.stat strong { display: block; margin-top: 0.25rem; font-size: 1rem; }

.estimate-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.6rem; margin: 1rem 0; }
.estimate { border-radius: 18px; padding: 1rem; color: #fff; background: var(--ink); }
.estimate:nth-child(2) { background: var(--mint-dark); }
.estimate:nth-child(3) { background: var(--blue); }
.estimate:nth-child(4) { color: var(--ink); background: var(--sun); }
.estimate span { display: block; opacity: 0.78; font-size: 0.72rem; letter-spacing: 0.09em; text-transform: uppercase; }
.estimate strong { display: block; margin-top: 0.25rem; font: 800 1.45rem Georgia, serif; }

.queue { display: grid; gap: 0.55rem; margin-top: 0.8rem; }
.queue-item { display: grid; grid-template-columns: 1fr auto; gap: 0.5rem; align-items: center; border: 1px solid var(--line); border-radius: 15px; padding: 0.75rem; background: #fff; }
.queue-item strong, .queue-item small { display: block; }
.queue-item small { color: var(--muted); margin-top: 0.18rem; }
.queue-item button { min-height: 34px; padding: 0.35rem 0.58rem; color: var(--ink); background: #f0f3f1; }

.notice { border-left: 4px solid var(--sun); border-radius: 0 14px 14px 0; padding: 0.85rem 1rem; color: #644716; background: #fff8e8; line-height: 1.45; }
.status-log { min-height: 48px; margin-top: 0.8rem; border-radius: 14px; padding: 0.75rem 0.85rem; color: var(--muted); background: #f1f4f2; line-height: 1.45; }
.status-log[data-kind="success"] { color: #075e4d; background: #e9fbf5; }
.status-log[data-kind="error"] { color: #8b2e25; background: #fff0ed; }

.mini-steps { counter-reset: steps; display: grid; gap: 0.6rem; margin: 1rem 0 0; padding: 0; list-style: none; }
.mini-steps li { display: grid; grid-template-columns: 30px 1fr; gap: 0.65rem; align-items: center; color: var(--muted); }
.mini-steps li::before { counter-increment: steps; content: counter(steps); display: grid; place-items: center; width: 30px; height: 30px; border-radius: 10px; color: #fff; background: var(--mint-dark); font-weight: 850; }

.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (max-width: 820px) {
  .workspace { grid-template-columns: 1fr; }
  .topbar { align-items: flex-start; }
  .brand-copy span { display: none; }
  .tool-nav { overflow-x: auto; max-width: 62vw; }
  .tool-nav a { white-space: nowrap; }
}

@media (max-width: 520px) {
  .topbar { padding: 0.7rem; }
  .brand-mark { width: 40px; height: 40px; }
  .tool-nav a { padding: 0.58rem 0.68rem; font-size: 0.78rem; }
  .hero, .workspace { width: min(100% - 1rem, 1180px); }
  .hero { border-radius: 22px; }
  .panel { border-radius: 20px; padding: 0.85rem; }
  .camera-stage, .model-stage, .camera-stage video, .model-stage canvas { min-height: 270px; }
  .form-grid, .estimate-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .actions > * { flex: 1 1 135px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; transition: none !important; }
}

.diagnostic-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 0.65rem; }
.diagnostic-card { min-height: 92px; border: 1px solid var(--line); border-radius: 17px; padding: 0.85rem; background: #fff; }
.diagnostic-card span { display: block; color: var(--muted); font-size: 0.72rem; font-weight: 760; letter-spacing: 0.08em; text-transform: uppercase; }
.diagnostic-card strong { display: block; margin-top: 0.28rem; font: 800 1.05rem Georgia, serif; overflow-wrap: anywhere; }
.diagnostic-card small { display: block; margin-top: 0.25rem; color: var(--muted); line-height: 1.35; }
.spectrum-stage { position: relative; min-height: 300px; border-radius: 22px; overflow: hidden; background: #102b28; }
.spectrum-stage canvas { display: block; width: 100%; height: 300px; }
.spectrum-readout { position: absolute; top: 0.8rem; left: 0.8rem; display: flex; gap: 0.45rem; flex-wrap: wrap; }
.spectrum-readout strong { border-radius: 999px; padding: 0.5rem 0.7rem; color: #fff; background: rgba(5, 28, 25, 0.74); backdrop-filter: blur(8px); }
.connector-tabs { display: flex; flex-wrap: wrap; gap: 0.45rem; margin-bottom: 0.9rem; }
.connector-tabs button { color: var(--muted); background: #eef3ef; }
.connector-tabs button[aria-selected="true"] { color: #fff; background: var(--mint-dark); }
.connector-pane[hidden] { display: none; }
.connector-pane { min-height: 240px; }
.result-list { display: grid; gap: 0.45rem; margin-top: 0.8rem; }
.result-row { display: grid; grid-template-columns: minmax(100px, 0.4fr) minmax(0, 1fr); gap: 0.65rem; border-bottom: 1px solid var(--line); padding: 0.55rem 0; }
.result-row span { color: var(--muted); }
.result-row strong { overflow-wrap: anywhere; }
.report-box { max-height: 310px; overflow: auto; margin: 0.8rem 0 0; border-radius: 16px; padding: 0.9rem; color: #d9fff4; background: #102b28; font: 0.78rem/1.5 Consolas, monospace; white-space: pre-wrap; overflow-wrap: anywhere; }

@media (max-width: 520px) {
  .diagnostic-grid { grid-template-columns: 1fr; }
  .result-row { grid-template-columns: 1fr; gap: 0.15rem; }
}