/* ═══════════════════════════════════════════════════════════
   ClearCut — style.css  (v2 — ISNet engine)
   Theme: Editorial dark · Amber/gold accents
   Fonts: DM Serif Display + DM Sans
═══════════════════════════════════════════════════════════ */

:root {
  --bg:         #0c0c0f;
  --bg2:        #131318;
  --bg3:        #1a1a22;
  --bg4:        #21212c;
  --border:     rgba(255,255,255,0.07);
  --border2:    rgba(255,255,255,0.13);
  --text:       #f0ede8;
  --text2:      #9e9a93;
  --text3:      #5e5a55;
  --accent:     #f0b429;
  --accent2:    #f59e0b;
  --accent-dim: rgba(240,180,41,0.12);
  --danger:     #ef4444;
  --success:    #22c55e;
  --radius:     16px;
  --radius-sm:  8px;
  --shadow:     0 8px 40px rgba(0,0,0,0.6);
  --font-d:     'DM Serif Display', Georgia, serif;
  --font-b:     'DM Sans', system-ui, sans-serif;
  --ease:       cubic-bezier(0.4,0,0.2,1);
  --t:          0.25s;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-b); background: var(--bg); color: var(--text); line-height: 1.6; overflow-x: hidden; }
img  { max-width: 100%; display: block; }
button { cursor: pointer; font-family: inherit; }
a  { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container { max-width: 1100px; margin: 0 auto; padding: 0 24px; }

/* ── NAVBAR ──────────────────────────────────────────────── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 40px; height: 64px;
  background: rgba(12,12,15,0.86);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: box-shadow var(--t);
}
.navbar.scrolled { box-shadow: 0 4px 30px rgba(0,0,0,0.5); }

.nav-brand { display: flex; align-items: center; gap: 10px; font-family: var(--font-d); font-size: 1.35rem; letter-spacing: -0.02em; }
.brand-icon { color: var(--accent); }

.nav-links { display: flex; align-items: center; gap: 4px; }
.nav-links > li > a {
  display: block; padding: 8px 14px;
  font-size: 0.88rem; font-weight: 500; color: var(--text2);
  border-radius: 6px;
  transition: color var(--t), background var(--t);
}
.nav-links > li > a:hover { color: var(--text); background: rgba(255,255,255,0.05); }

.has-dropdown { position: relative; }
.dropdown-toggle { display: flex; align-items: center; gap: 4px; }
.arrow { font-size: 0.7rem; transition: transform var(--t); }
.has-dropdown:hover .arrow { transform: rotate(180deg); }

.dropdown-menu {
  position: absolute; top: calc(100% + 8px); left: 50%;
  min-width: 200px; background: var(--bg3);
  border: 1px solid var(--border2); border-radius: var(--radius-sm);
  padding: 8px; box-shadow: var(--shadow);
  opacity: 0; visibility: hidden;
  transform: translateX(-50%) translateY(-8px);
  transition: opacity var(--t), transform var(--t), visibility var(--t);
}
.has-dropdown:hover .dropdown-menu { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.dropdown-menu li a { display: block; padding: 10px 14px; font-size: 0.875rem; color: var(--text2); border-radius: 6px; transition: color var(--t), background var(--t); }
.dropdown-menu li a:hover { color: var(--text); background: rgba(255,255,255,0.06); }
.coming-soon { opacity: 0.5; pointer-events: none; }
.soon-tag { display: inline-block; padding: 1px 7px; font-size: 0.65rem; font-weight: 600; letter-spacing: 0.05em; background: var(--accent-dim); color: var(--accent); border-radius: 100px; margin-left: 6px; }

.hamburger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 4px; }
.hamburger span { display: block; width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: transform var(--t), opacity var(--t); }

@media (max-width: 768px) {
  .navbar { padding: 0 20px; }
  .hamburger { display: flex; }
  .nav-links { position: fixed; top: 64px; left: 0; right: 0; flex-direction: column; align-items: flex-start; gap: 0; background: var(--bg2); border-bottom: 1px solid var(--border); padding: 16px; max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
  .nav-links.open { max-height: 400px; }
  .nav-links > li { width: 100%; }
  .nav-links > li > a { width: 100%; }
  .dropdown-menu { position: static; transform: none; box-shadow: none; border: none; background: transparent; padding: 0 16px; opacity: 1; visibility: visible; max-height: 0; overflow: hidden; }
  .has-dropdown.open .dropdown-menu { max-height: 200px; }
}

/* ── HERO ─────────────────────────────────────────────────── */
.hero {
  min-height: 100vh; display: flex; align-items: center;
  padding: 100px 60px 80px; position: relative; overflow: hidden; gap: 60px;
}
.hero-orbs { position: absolute; inset: 0; pointer-events: none; }
.orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.3; animation: float 9s ease-in-out infinite; }
.orb-a { width: 500px; height: 500px; background: radial-gradient(circle,#f0b429,transparent 70%); top: -100px; right: -80px; }
.orb-b { width: 360px; height: 360px; background: radial-gradient(circle,#8b5cf6,transparent 70%); bottom: 0; left: -80px; animation-delay: -3s; }
.orb-c { width: 260px; height: 260px; background: radial-gradient(circle,#06b6d4,transparent 70%); top: 40%; right: 32%; animation-delay: -6s; }
@keyframes float { 0%,100%{transform:translateY(0) scale(1)} 50%{transform:translateY(-28px) scale(1.04)} }

.hero-text { flex: 1; max-width: 580px; position: relative; z-index: 1; animation: fadeUp 0.8s var(--ease) both; }
.eyebrow { display: inline-flex; align-items: center; gap: 8px; font-size: 0.78rem; font-weight: 600; letter-spacing: 0.13em; text-transform: uppercase; color: var(--accent); margin-bottom: 20px; }
.eyebrow::before { content: ''; display: block; width: 24px; height: 1px; background: var(--accent); }
.hero-text h1 { font-family: var(--font-d); font-size: clamp(3rem, 6vw, 5.5rem); line-height: 1.05; letter-spacing: -0.03em; color: var(--text); margin-bottom: 24px; }
.hero-text h1 em { color: var(--accent); font-style: italic; }
.hero-desc { font-size: 1rem; color: var(--text2); margin-bottom: 36px; line-height: 1.75; }
.cta-btn { display: inline-flex; align-items: center; padding: 14px 32px; border-radius: 100px; background: var(--accent); color: #0c0c0f; font-weight: 600; font-size: 0.95rem; box-shadow: 0 4px 30px rgba(240,180,41,0.35); transition: background var(--t), transform var(--t), box-shadow var(--t); }
.cta-btn:hover { background: var(--accent2); transform: translateY(-2px); box-shadow: 0 8px 40px rgba(240,180,41,0.45); }

.hero-cards { display: flex; gap: 20px; align-items: center; position: relative; z-index: 1; animation: fadeUp 0.9s 0.15s var(--ease) both; }
.demo-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); min-width: 200px; }
.demo-label { padding: 10px 16px; font-size: 0.73rem; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text3); border-bottom: 1px solid var(--border); }
.demo-img-wrap img { width: 100%; height: 200px; object-fit: cover; }
.checkered-demo { background-image: linear-gradient(45deg,#1e1e2a 25%,transparent 25%),linear-gradient(-45deg,#1e1e2a 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#1e1e2a 75%),linear-gradient(-45deg,transparent 75%,#1e1e2a 75%); background-size: 16px 16px; background-position: 0 0,0 8px,8px -8px,-8px 0; }
.demo-cutout { mix-blend-mode: multiply; filter: contrast(1.1); }
.demo-after { transform: translateY(20px) rotate(2deg); }
@keyframes fadeUp { from{opacity:0;transform:translateY(24px)} to{opacity:1;transform:translateY(0)} }

@media (max-width: 900px) {
  .hero { flex-direction: column; padding: 100px 24px 60px; text-align: center; }
  .hero-text { max-width: 100%; }
  .eyebrow { justify-content: center; }
  .hero-cards { justify-content: center; }
  .demo-after { transform: translateY(14px) rotate(1deg); }
}

/* ── INTRO ───────────────────────────────────────────────── */
.intro { padding: 100px 0; background: var(--bg2); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.section-eyebrow { font-size: 0.75rem; font-weight: 600; letter-spacing: 0.14em; text-transform: uppercase; color: var(--accent); margin-bottom: 12px; }
.section-title { font-family: var(--font-d); font-size: clamp(2rem, 4vw, 3rem); letter-spacing: -0.02em; color: var(--text); margin-bottom: 56px; }
.steps { display: flex; align-items: flex-start; }
.step { flex: 1; padding: 32px; background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); transition: border-color var(--t), box-shadow var(--t); }
.step:hover { border-color: var(--border2); box-shadow: 0 4px 20px rgba(0,0,0,0.4); }
.step-no { font-size: 2.5rem; font-family: var(--font-d); color: var(--accent); opacity: 0.4; margin-bottom: 16px; line-height: 1; }
.step h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: 10px; }
.step p  { font-size: 0.875rem; color: var(--text2); line-height: 1.7; }
.step strong { color: var(--text); font-weight: 600; }
.step em { color: var(--accent); font-style: normal; }
.step-connector { width: 40px; flex-shrink: 0; margin-top: 48px; height: 1px; background: linear-gradient(90deg,var(--border),var(--border2),var(--border)); }
@media (max-width: 768px) { .steps{flex-direction:column;gap:16px} .step-connector{width:1px;height:24px;margin:0 auto;background:linear-gradient(180deg,var(--border),var(--border2),var(--border))} }

/* ── TOOL ────────────────────────────────────────────────── */
.tool-section { padding: 100px 0; }

/* Status bar */
.status-bar { display: flex; align-items: center; gap: 10px; padding: 12px 18px; border-radius: var(--radius-sm); background: var(--bg2); border: 1px solid var(--border); margin-bottom: 36px; font-size: 0.875rem; color: var(--text2); transition: border-color 0.4s; }
.status-bar.ready { border-color: rgba(34,197,94,0.4); }
.status-bar.error { border-color: rgba(239,68,68,0.4); }
.status-bar.loading { border-color: rgba(240,180,41,0.3); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; background: var(--accent); animation: pulse 1.5s ease infinite; }
.status-dot.ready { background: var(--success); animation: none; }
.status-dot.error { background: var(--danger); animation: none; }
@keyframes pulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.4;transform:scale(0.75)} }

/* Tool grid */
.tool-grid { display: grid; grid-template-columns: 1fr 400px; gap: 24px; margin-bottom: 40px; }
@media (max-width: 960px) { .tool-grid { grid-template-columns: 1fr; } }

/* Upload zone */
.upload-zone { min-height: 380px; border: 2px dashed var(--border2); border-radius: var(--radius); background: var(--bg2); display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden; transition: border-color var(--t), background var(--t); cursor: pointer; }
.upload-zone:hover, .upload-zone.drag-over { border-color: var(--accent); background: var(--accent-dim); }
.upload-zone.has-image { border-style: solid; cursor: default; border-color: var(--border2); background: var(--bg2); }
.upload-content { display: flex; flex-direction: column; align-items: center; gap: 8px; padding: 48px; text-align: center; pointer-events: none; }
.upload-icon-wrap { color: var(--text3); margin-bottom: 8px; }
.upload-title { font-weight: 600; font-size: 1rem; color: var(--text); }
.upload-sub { font-size: 0.875rem; color: var(--text2); }
.text-btn { background: none; border: none; color: var(--accent); font-size: inherit; font-family: inherit; cursor: pointer; text-decoration: underline; text-underline-offset: 2px; pointer-events: all; }
.text-btn:hover { color: var(--accent2); }
.upload-hint { font-size: 0.8rem; color: var(--text3); }
.preview-wrap { width: 100%; height: 100%; display: flex; align-items: center; justify-content: center; padding: 20px; position: relative; }
.preview-wrap img { max-height: 340px; max-width: 100%; border-radius: 8px; object-fit: contain; box-shadow: 0 4px 24px rgba(0,0,0,0.5); }
.remove-preview-btn { position: absolute; top: 12px; right: 12px; width: 32px; height: 32px; border-radius: 50%; background: rgba(12,12,15,0.9); border: 1px solid var(--border2); color: var(--text2); font-size: 0.75rem; display: flex; align-items: center; justify-content: center; transition: background var(--t), color var(--t); z-index: 2; }
.remove-preview-btn:hover { background: var(--danger); color: #fff; border-color: var(--danger); }

/* Controls panel */
.controls { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: 28px; display: flex; flex-direction: column; gap: 22px; }
.ctrl-heading { font-family: var(--font-d); font-size: 1.4rem; color: var(--text); }
.ctrl-group { display: flex; flex-direction: column; gap: 8px; }
.ctrl-standalone { font-size: 0.85rem; font-weight: 500; color: var(--text2); }
.ctrl-hint { font-size: 0.75rem; color: var(--text3); }

/* Model selector */
.model-options { display: flex; gap: 10px; }
.model-opt { flex: 1; }
.model-opt input[type="radio"] { display: none; }
.model-card { display: flex; flex-direction: column; padding: 12px 14px; border-radius: var(--radius-sm); border: 1.5px solid var(--border2); cursor: pointer; transition: border-color var(--t), background var(--t); }
.model-opt input:checked + .model-card { border-color: var(--accent); background: var(--accent-dim); }
.model-name { font-size: 0.875rem; font-weight: 600; color: var(--text); }
.model-desc { font-size: 0.75rem; color: var(--text3); margin-top: 2px; }

/* BG swatches */
.bg-options { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.bg-swatch { width: 36px; height: 36px; border-radius: 8px; border: 2px solid transparent; cursor: pointer; transition: border-color var(--t), transform var(--t); display: flex; align-items: center; justify-content: center; position: relative; }
.bg-swatch.active { border-color: var(--accent); }
.bg-swatch:hover { transform: scale(1.1); }
.bg-swatch[data-bg="transparent"] { background-image: linear-gradient(45deg,#333 25%,transparent 25%),linear-gradient(-45deg,#333 25%,transparent 25%),linear-gradient(45deg,transparent 75%,#333 75%),linear-gradient(-45deg,transparent 75%,#333 75%); background-size: 10px 10px; background-position: 0 0,0 5px,5px -5px,-5px 0; }
.swatch-check { display: none; }
.bg-swatch[data-bg="transparent"].active .swatch-check { display: block; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.custom-color-wrap { overflow: hidden; }
.custom-color-wrap input[type="color"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%; border: none; }
.custom-icon { font-size: 1.2rem; color: var(--text3); pointer-events: none; }

/* Buttons */
.btn-primary { width: 100%; padding: 14px 24px; border-radius: 10px; border: none; background: var(--accent); color: #0c0c0f; font-size: 0.95rem; font-weight: 600; display: flex; align-items: center; justify-content: center; gap: 10px; transition: background var(--t), transform var(--t), opacity var(--t); }
.btn-primary:hover:not(:disabled) { background: var(--accent2); transform: translateY(-1px); }
.btn-primary:disabled { opacity: 0.4; cursor: not-allowed; }
.btn-ghost { width: 100%; padding: 12px 24px; border-radius: 10px; border: 1px solid var(--border2); background: transparent; color: var(--text2); font-size: 0.875rem; font-weight: 500; transition: border-color var(--t), color var(--t), background var(--t); }
.btn-ghost:hover { border-color: var(--text3); color: var(--text); background: rgba(255,255,255,0.04); }
.ctrl-actions { display: flex; flex-direction: column; gap: 10px; }

/* Spinner */
.spinner { width: 16px; height: 16px; border-radius: 50%; border: 2px solid rgba(12,12,15,0.3); border-top-color: #0c0c0f; animation: spin 0.7s linear infinite; flex-shrink: 0; }
@keyframes spin { to { transform: rotate(360deg); } }

/* Progress */
.progress-wrap { display: flex; flex-direction: column; gap: 8px; }
.progress-track { height: 4px; background: var(--bg3); border-radius: 2px; overflow: hidden; }
.progress-bar { height: 100%; width: 0%; border-radius: 2px; background: linear-gradient(90deg, var(--accent), var(--accent2)); transition: width 0.35s var(--ease); }
.progress-label { font-size: 0.78rem; color: var(--text3); }

/* Tips */
.tips-box { padding: 14px 16px; background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-sm); }
.tips-title { font-size: 0.8rem; font-weight: 600; color: var(--text2); margin-bottom: 8px; }
.tips-box ul { display: flex; flex-direction: column; gap: 4px; }
.tips-box li { font-size: 0.78rem; color: var(--text3); padding-left: 12px; position: relative; }
.tips-box li::before { content: '·'; position: absolute; left: 0; color: var(--accent); }

/* ── RESULT ──────────────────────────────────────────────── */
.result-area { animation: fadeUp 0.5s var(--ease) both; }
.result-heading { font-family: var(--font-d); font-size: 1.5rem; color: var(--text); margin-bottom: 24px; }

.comparison-wrap { position: relative; display: inline-block; max-width: 100%; border-radius: var(--radius); overflow: hidden; box-shadow: var(--shadow); cursor: ew-resize; user-select: none; border: 1px solid var(--border); }
.comparison-wrap canvas { display: block; max-width: 100%; }
.comp-after { position: absolute; top: 0; left: 0; bottom: 0; overflow: hidden; width: 50%; }
.comp-after canvas { position: absolute; top: 0; left: 0; }
.comp-slider { position: absolute; top: 0; bottom: 0; left: 50%; width: 3px; background: rgba(255,255,255,0.95); transform: translateX(-50%); display: flex; align-items: center; justify-content: center; pointer-events: none; }
.comp-handle { width: 40px; height: 40px; border-radius: 50%; background: #fff; color: #0c0c0f; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 16px rgba(0,0,0,0.4); pointer-events: none; }
.comp-legend { display: flex; justify-content: space-between; padding: 10px 0; font-size: 0.78rem; color: var(--text3); letter-spacing: 0.04em; }
.download-bar { margin-top: 24px; display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.btn-download { padding: 14px 40px; border-radius: 100px; border: none; background: linear-gradient(135deg,#f0b429,#f59e0b); color: #0c0c0f; font-weight: 700; font-size: 0.95rem; box-shadow: 0 4px 24px rgba(240,180,41,0.35); transition: transform var(--t), box-shadow var(--t); }
.btn-download:hover { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(240,180,41,0.5); }
.download-hint { font-size: 0.78rem; color: var(--text3); }

/* ── FOOTER ──────────────────────────────────────────────── */
.site-footer { padding: 40px 0; border-top: 1px solid var(--border); text-align: center; font-size: 0.85rem; color: var(--text3); }
.site-footer strong { color: var(--text2); }

/* Utility */
[hidden] { display: none !important; }