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

:root {
  --bg: #080810;
  --surface: #0f0f1a;
  --surface2: #141422;
  --border: #1c1c30;
  --accent: #ff3c5f;
  --accent2: #ffb800;
  --safe: #00e676;
  --warn: #ffb800;
  --danger: #ff3c5f;
  --text: #f0f0f8;
  --muted: #8888aa;
  --mono: 'DM Mono', monospace;
  --display: 'Barlow Condensed', sans-serif;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--display);
  overflow-x: hidden;
  -webkit-tap-highlight-color: transparent;
}

/* ── Scanlines ── */
.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    0deg,
    transparent,
    transparent 2px,
    rgba(0,0,0,0.07) 2px,
    rgba(0,0,0,0.07) 4px
  );
  pointer-events: none;
  z-index: 999;
}

/* ── Screens ── */
.screen {
  display: none;
  min-height: 100dvh;
  flex-direction: column;
}

.screen.active { display: flex; }

/* ══════════════════════════════
   HOME
══════════════════════════════ */
#screen-home {
  position: relative;
  overflow: hidden;
  padding-top: var(--safe-top);
}

#screen-home::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(255,60,95,0.16) 0%, transparent 70%);
  pointer-events: none;
}

#screen-home::after {
  content: '';
  position: absolute;
  bottom: 60px; left: -60px;
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(255,184,0,0.07) 0%, transparent 70%);
  pointer-events: none;
}

.home-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  flex: 1;
  padding: 20px 20px calc(32px + var(--safe-bottom));
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 40px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.brand-icon {
  width: 36px; height: 36px;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  clip-path: polygon(0 0, calc(100% - 8px) 0, 100% 8px, 100% 100%, 8px 100%, 0 calc(100% - 8px));
}

.brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.5px;
  text-transform: uppercase;
}

.brand-name em { color: var(--accent); font-style: normal; }

.version-tag {
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
  border: 1px solid var(--border);
  padding: 3px 8px;
  letter-spacing: 0.1em;
}

/* Install banner */
.install-banner {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: rgba(255,184,0,0.07);
  border: 1px solid rgba(255,184,0,0.2);
  margin-bottom: 24px;
  animation: slideDown 0.3s ease;
}

.install-banner.visible { display: flex; }

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-8px); }
  to { opacity: 1; transform: translateY(0); }
}

.install-text {
  flex: 1;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent2);
}

.btn-install {
  background: var(--accent2);
  color: #000;
  font-family: var(--display);
  font-size: 13px;
  font-weight: 700;
  padding: 7px 14px;
  border: none;
  cursor: pointer;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  white-space: nowrap;
}

/* Hero */
.hero {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 20px 0 32px;
}

.hero-label {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--accent);
  text-transform: uppercase;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-label::before {
  content: '';
  width: 20px; height: 1px;
  background: var(--accent);
}

.hero-title {
  font-size: clamp(52px, 14vw, 80px);
  font-weight: 900;
  line-height: 0.92;
  letter-spacing: -1px;
  text-transform: uppercase;
  margin-bottom: 20px;
}

.hero-title .line2 {
  color: var(--accent);
  display: block;
  position: relative;
}

.hero-title .line2::after {
  content: '';
  position: absolute;
  bottom: 2px; left: 0;
  width: 100%; height: 3px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left;
  animation: underlineIn 0.6s ease 0.4s forwards;
}

@keyframes underlineIn { to { transform: scaleX(1); } }

.hero-sub {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.7;
  max-width: 280px;
  margin-bottom: 32px;
}

/* Steps */
.steps {
  display: flex;
  flex-direction: column;
  gap: 1px;
  margin-bottom: 28px;
}

.step {
  display: grid;
  grid-template-columns: 44px 1fr;
  background: var(--surface);
  border: 1px solid var(--border);
  overflow: hidden;
  animation: fadeUp 0.4s ease both;
}

.step:nth-child(1) { animation-delay: 0.1s; }
.step:nth-child(2) { animation-delay: 0.18s; }
.step:nth-child(3) { animation-delay: 0.26s; }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.step-num {
  background: var(--surface2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  border-right: 1px solid var(--border);
  padding: 14px 0;
}

.step-body { padding: 12px 16px; }

.step-title {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  line-height: 1.2;
  margin-bottom: 3px;
}

.step-desc {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  line-height: 1.5;
}

/* CTA buttons */
.cta-stack {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-cta {
  width: 100%;
  padding: 18px 24px;
  background: var(--accent);
  color: #fff;
  font-family: var(--display);
  font-size: 18px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border: none;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  position: relative;
  overflow: hidden;
  transition: transform 0.1s;
}

.btn-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1) 0%, transparent 50%);
  pointer-events: none;
}

.btn-cta:active { transform: scale(0.98); }
.btn-cta:disabled { opacity: 0.35; pointer-events: none; }

.btn-ghost {
  width: 100%;
  padding: 13px;
  background: transparent;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  border: 1px solid var(--border);
  cursor: pointer;
  text-transform: uppercase;
  transition: color 0.15s, border-color 0.15s;
}

.btn-ghost:active { color: var(--text); border-color: var(--muted); }

/* ══════════════════════════════
   UPLOAD
══════════════════════════════ */
#screen-upload {
  padding: 0;
  padding-top: var(--safe-top);
}

.screen-nav {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  position: sticky;
  top: 0;
  z-index: 20;
}

.btn-back {
  width: 36px; height: 36px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 16px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.screen-nav-title {
  font-size: 17px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.screen-nav-sub {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  margin-left: auto;
}

.upload-body {
  flex: 1;
  overflow-y: auto;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.tip-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 2px solid var(--accent2);
  padding: 16px;
}

.tip-header {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--accent2);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.tip-items {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.tip-item {
  display: flex;
  gap: 12px;
  align-items: flex-start;
}

.tip-num {
  width: 20px; height: 20px;
  background: rgba(255,184,0,0.1);
  border: 1px solid rgba(255,184,0,0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--accent2);
  flex-shrink: 0;
}

.tip-text {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.55;
  padding-top: 2px;
}

.tip-text strong { color: var(--text); }

.upload-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.15em;
  color: var(--accent2);
  text-transform: uppercase;
  margin-bottom: 10px;
}

.drop-zone {
  position: relative;
  border: 1px dashed rgba(255,60,95,0.3);
  background: rgba(255,60,95,0.02);
  cursor: pointer;
  transition: all 0.2s;
  min-height: 140px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.drop-zone.has-files {
  border-color: var(--border);
  border-style: solid;
  background: var(--surface);
  min-height: auto;
  display: block;
  padding: 12px;
}

.drop-zone input[type="file"] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  font-size: 0;
}

.drop-empty {
  text-align: center;
  pointer-events: none;
  padding: 24px;
}

.drop-emoji { font-size: 36px; margin-bottom: 10px; display: block; }
.drop-main { font-size: 18px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.03em; margin-bottom: 6px; }
.drop-hint { font-family: var(--mono); font-size: 10px; color: var(--muted); line-height: 1.6; }

.img-grid {
  display: none;
  grid-template-columns: repeat(3, 1fr);
  gap: 4px;
}

.img-grid.visible { display: grid; }

.drop-empty.hidden { display: none; }

.img-thumb {
  aspect-ratio: 1;
  position: relative;
  overflow: hidden;
  background: var(--surface2);
}

.img-thumb img { width: 100%; height: 100%; object-fit: cover; }

.remove-btn {
  position: absolute;
  top: 4px; right: 4px;
  width: 24px; height: 24px;
  background: rgba(0,0,0,0.75);
  border: none;
  color: #fff;
  font-size: 11px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.add-more {
  aspect-ratio: 1;
  border: 1px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 22px;
  cursor: pointer;
  position: relative;
  background: none;
}

.add-more input { position: absolute; inset: 0; opacity: 0; cursor: pointer; }

.price-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  transition: border-color 0.2s;
}

.price-wrap:focus-within { border-color: var(--accent); }

.price-sym {
  width: 52px; height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 20px;
  color: var(--text);
  border-right: 1px solid var(--border);
  flex-shrink: 0;
}

.price-wrap input {
  background: none;
  border: none;
  color: var(--text);
  font-family: var(--mono);
  font-size: 24px;
  font-weight: 500;
  padding: 0 16px;
  width: 100%;
  outline: none;
  height: 56px;
}

.price-wrap input::placeholder { color: var(--muted); }

.upload-footer {
  padding: 16px 20px;
  padding-bottom: calc(16px + var(--safe-bottom));
  border-top: 1px solid var(--border);
  background: var(--bg);
}

/* ══════════════════════════════
   ANALYZING
══════════════════════════════ */
#screen-analyzing {
  align-items: center;
  justify-content: center;
  gap: 32px;
  padding: 40px 24px;
}

.scan-visual {
  position: relative;
  width: 120px; height: 120px;
}

.scan-ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1px solid rgba(255,60,95,0.2);
  animation: scanPulse 2.4s ease infinite;
}

.scan-ring:nth-child(2) {
  inset: 16px;
  border-color: rgba(255,60,95,0.35);
  animation-delay: 0.4s;
}

.scan-ring:nth-child(3) {
  inset: 32px;
  border-color: rgba(255,60,95,0.5);
  border-top-color: var(--accent);
  animation: spin 1.2s linear infinite;
}

.scan-core {
  position: absolute;
  inset: 44px;
  background: var(--accent);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  box-shadow: 0 0 24px rgba(255,60,95,0.5);
}

@keyframes scanPulse { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.1);opacity:0.5} }
@keyframes spin { to { transform: rotate(360deg); } }

.scan-title {
  font-size: 28px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.scan-steps {
  width: 100%;
  max-width: 280px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.s-step {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  transition: all 0.3s;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.s-step.active { background: rgba(255,60,95,0.06); border-color: rgba(255,60,95,0.3); color: var(--text); }
.s-step.done { color: var(--safe); border-color: rgba(0,230,118,0.15); background: rgba(0,230,118,0.03); }

.s-dot { width: 5px; height: 5px; border-radius: 50%; background: currentColor; flex-shrink: 0; }
.s-step.active .s-dot { animation: pulse 1s infinite; }

@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.2} }

/* ══════════════════════════════
   RESULT
══════════════════════════════ */
#screen-result {
  padding: 0;
  padding-top: var(--safe-top);
  overflow-y: auto;
}

.result-hero {
  padding: 24px 20px 20px;
  position: relative;
  overflow: hidden;
}

.result-hero.safe    { background: linear-gradient(160deg, rgba(0,230,118,0.07) 0%, transparent 60%); border-bottom: 1px solid rgba(0,230,118,0.15); }
.result-hero.warning { background: linear-gradient(160deg, rgba(255,184,0,0.07) 0%, transparent 60%); border-bottom: 1px solid rgba(255,184,0,0.15); }
.result-hero.danger  { background: linear-gradient(160deg, rgba(255,60,95,0.07) 0%, transparent 60%); border-bottom: 1px solid rgba(255,60,95,0.15); }

.result-hero::after {
  content: attr(data-score);
  position: absolute;
  right: -8px; bottom: -20px;
  font-size: 160px;
  font-weight: 900;
  opacity: 0.04;
  line-height: 1;
  pointer-events: none;
  font-family: var(--display);
}

.result-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.2em;
  padding: 5px 12px;
  border: 1px solid;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.result-chip.safe    { color: var(--safe); border-color: rgba(0,230,118,0.3); background: rgba(0,230,118,0.06); }
.result-chip.warning { color: var(--warn); border-color: rgba(255,184,0,0.3); background: rgba(255,184,0,0.06); }
.result-chip.danger  { color: var(--danger); border-color: rgba(255,60,95,0.3); background: rgba(255,60,95,0.06); }

.chip-dot { width: 4px; height: 4px; border-radius: 50%; background: currentColor; animation: pulse 1.5s infinite; }

.result-title {
  font-size: 30px;
  font-weight: 800;
  text-transform: uppercase;
  line-height: 1.05;
  letter-spacing: -0.3px;
  margin-bottom: 8px;
}

.result-summary {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--muted);
  line-height: 1.65;
  margin-bottom: 20px;
}

.score-bar-row {
  display: flex;
  align-items: center;
  gap: 14px;
}

.score-num {
  font-family: var(--mono);
  font-size: 40px;
  font-weight: 500;
  line-height: 1;
  min-width: 60px;
}

.score-bar-col { flex: 1; }

.score-bar-meta {
  display: flex;
  justify-content: space-between;
  font-family: var(--mono);
  font-size: 9px;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.score-track {
  height: 3px;
  background: rgba(255,255,255,0.06);
}

.score-fill {
  height: 100%;
  width: 0;
  transition: width 1.4s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Prices */
.prices-section {
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.section-head {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.price-row-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}

.p-card {
  background: var(--surface);
  padding: 12px 10px;
  text-align: center;
}

.p-card-label {
  font-family: var(--mono);
  font-size: 8px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.p-card-val {
  font-family: var(--mono);
  font-size: 17px;
  font-weight: 500;
}

.p-card.hi .p-card-val { color: var(--accent2); }

/* Checks */
.checks-list { padding-bottom: calc(80px + var(--safe-bottom)); }

.check-group-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: var(--muted);
  text-transform: uppercase;
  padding: 14px 20px 8px;
  border-bottom: 1px solid var(--border);
}

.check-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  padding: 14px 20px;
  border-bottom: 1px solid var(--border);
  animation: fadeUp 0.35s ease both;
}

.check-badge {
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  margin-top: 1px;
  font-family: var(--mono);
}

.check-badge.pass { background: rgba(0,230,118,0.1); color: var(--safe); }
.check-badge.fail { background: rgba(255,60,95,0.1); color: var(--danger); }
.check-badge.warn { background: rgba(255,184,0,0.1); color: var(--warn); }
.check-badge.info { background: rgba(100,120,255,0.1); color: #8899ff; }

.check-title {
  font-size: 15px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
  margin-bottom: 4px;
  line-height: 1.2;
}

.check-desc {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  line-height: 1.55;
}

.rec-card {
  margin: 12px 20px 20px;
  padding: 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.rec-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: #8899ff;
}

.rec-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.18em;
  color: #8899ff;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.rec-text {
  font-size: 16px;
  font-weight: 600;
  line-height: 1.4;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

/* Result footer */
.result-actions {
  padding: 16px 20px;
  padding-bottom: calc(16px + var(--safe-bottom));
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
  background: var(--bg);
  position: sticky;
  bottom: 0;
}

/* ── Add more button ── */
#btnAddMore { display: none; }
#btnAddMore.visible { display: block; }

.btn-add-more {
  width: 100%;
  padding: 12px;
  background: transparent;
  border: 1px dashed rgba(255,184,0,0.4);
  color: var(--accent2);
  font-family: var(--mono);
  font-size: 11px;
  cursor: pointer;
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  transition: color 0.15s, border-color 0.15s, background 0.15s;
}

.btn-add-more:active {
  background: rgba(255,184,0,0.06);
  border-color: var(--accent2);
}

/* ── Listing summary ── */
.listing-section {
  border-bottom: 1px solid var(--border);
}

.listing-row {
  display: grid;
  grid-template-columns: 90px 1fr;
  gap: 12px;
  padding: 10px 20px;
  border-bottom: 1px solid var(--border);
  align-items: baseline;
}

.listing-row:last-child { border-bottom: none; }

.listing-label {
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  color: var(--muted);
  text-transform: uppercase;
  padding-top: 2px;
}

.listing-val {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text);
  line-height: 1.5;
}

/* ── Home footer ── */
.home-footer {
  display: flex;
  gap: 20px;
  justify-content: center;
  flex-wrap: wrap;
  padding: 24px 0 8px;
  margin-top: auto;
}

.home-footer a {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
  text-decoration: none;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  opacity: 0.6;
  transition: opacity 0.15s;
}

.home-footer a:hover { opacity: 1; }