/* ============================================================
   JPG ke PDF — PREMIUM dark-purple SaaS design (Visuo/Mufi language)
   "WAO on open": gradient orbs, glassmorphism, 3D tilt, floating
   image stack, micro-interactions. Zero frameworks, zero remote assets.
   Font: Plus Jakarta Sans (OFL), self-hosted in assets/fonts/.
   ============================================================ */

/* ---------- self-hosted font ---------- */
@font-face {
  font-family: "Plus Jakarta Sans";
  src: url("assets/fonts/plus-jakarta-sans-latin.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA,
    U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193,
    U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --font: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  --bg-950: #12101d;
  --bg-900: #181527;
  --bg-800: #1f1b33;
  --violet-500: #8b5cf6;
  --violet-400: #a78bfa;
  --violet-700: #6d28d9;
  --orange-400: #fb923c;
  --orange-500: #f97316;

  --ink: #f4f2fb;
  --muted: #a9a3c7;
  --faint: #7c76a0;
  --line: rgba(139, 92, 246, 0.22);
  --card: rgba(31, 27, 51, 0.72);
  --danger: #f87171;
  --danger-bg: rgba(248, 113, 113, 0.12);
  --success: #34d399;
  --success-bg: rgba(52, 211, 153, 0.12);

  --radius: 16px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --focus-ring: 0 0 0 3px rgba(139, 92, 246, 0.45);
  --shadow-lift: 0 18px 50px -12px rgba(139, 92, 246, 0.45);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0; font-family: var(--font); color: var(--ink); line-height: 1.65;
  background:
    radial-gradient(1100px 480px at 85% -80px, rgba(139, 92, 246, 0.16), transparent 60%),
    radial-gradient(900px 420px at -10% 20px, rgba(249, 115, 22, 0.10), transparent 55%),
    radial-gradient(700px 500px at 50% 110%, rgba(109, 40, 217, 0.12), transparent 60%),
    var(--bg-950);
  min-height: 100vh;
}
.container { max-width: 920px; margin: 0 auto; padding: 0 16px; }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
[hidden] { display: none !important; }
.skip-link {
  position: absolute; left: 8px; top: -48px; z-index: 100;
  background: var(--violet-500); color: #fff; padding: 10px 16px;
  border-radius: 10px; text-decoration: none; transition: top 0.15s ease; font-weight: 700;
}
.skip-link:focus { top: 8px; }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(18, 16, 29, 0.78);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.site-header .container { display: flex; align-items: center; gap: 12px; padding-top: 12px; padding-bottom: 12px; }
.brand {
  font-size: 1.35rem; font-weight: 800; margin: 0; letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--violet-400), var(--orange-400));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.tagline { margin: 0; color: var(--muted); font-size: 0.85rem; }
.header-badge {
  margin-left: auto; font-size: 0.75rem; font-weight: 700; color: var(--orange-400);
  border: 1px solid rgba(251, 146, 60, 0.4); background: rgba(251, 146, 60, 0.1);
  padding: 4px 12px; border-radius: 999px; white-space: nowrap;
}

/* ---------- hero ---------- */
.hero { text-align: center; padding: 44px 0 12px; position: relative; overflow: clip; }
.hero-orb { position: absolute; border-radius: 50%; filter: blur(70px); pointer-events: none; z-index: 0; }
.hero-orb-a {
  width: 340px; height: 340px; left: -90px; top: -40px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.35), transparent 70%);
  animation: orb-drift 14s ease-in-out infinite alternate;
}
.hero-orb-b {
  width: 280px; height: 280px; right: -70px; top: 30px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.22), transparent 70%);
  animation: orb-drift 18s ease-in-out infinite alternate-reverse;
}
@keyframes orb-drift { from { transform: translate(0, 0) scale(1); } to { transform: translate(36px, 28px) scale(1.12); } }
.hero .container { position: relative; z-index: 1; }
.hero h1 { font-size: 2rem; margin: 0 0 10px; letter-spacing: -0.03em; line-height: 1.15; animation: float-in 0.7s var(--ease-out) both; }
.lede { color: var(--muted); font-size: 1.05rem; margin: 0 auto; max-width: 38rem; animation: float-in 0.7s var(--ease-out) 0.08s both; }
.lede strong { color: var(--ink); }
.hero-stats { display: flex; justify-content: center; gap: 28px; margin: 20px 0 0; padding: 0; list-style: none; animation: float-in 0.7s var(--ease-out) 0.16s both; flex-wrap: wrap; }
.hero-stats li { text-align: center; }
.hero-stats strong { display: block; font-size: 1.15rem; letter-spacing: -0.02em; }
.hero-stats span { font-size: 0.78rem; color: var(--faint); }
@keyframes float-in { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

/* floating image stack (signature visual) */
.img-stack { position: relative; width: 190px; height: 130px; margin: 26px auto 6px; perspective: 900px; animation: float-in 0.8s var(--ease-out) 0.24s both; }
.img-stack i {
  position: absolute; inset: 0; border-radius: 12px;
  border: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(139,92,246,0.35), rgba(31,27,51,0.9)),
    repeating-linear-gradient(45deg, rgba(255,255,255,0.05) 0 10px, transparent 10px 20px);
  box-shadow: 0 18px 44px -14px rgba(0,0,0,0.65);
}
.img-stack i:nth-child(1) { transform: rotate(-9deg) translate(-14px, 8px); }
.img-stack i:nth-child(2) { transform: rotate(7deg) translate(14px, 4px); }
.img-stack i:nth-child(3) {
  transform: rotate(-2deg);
  background: linear-gradient(135deg, rgba(251,146,60,0.28), rgba(31,27,51,0.92));
  animation: stack-float 5s ease-in-out infinite;
  display: flex; align-items: center; justify-content: center;
}
.img-stack i:nth-child(3)::after {
  content: "PDF"; font-weight: 800; letter-spacing: 0.14em; font-size: 0.95rem; color: var(--orange-400);
}
@keyframes stack-float { 0%, 100% { transform: rotate(-2deg) translateY(0); } 50% { transform: rotate(-2deg) translateY(-9px); } }

/* ---------- tool ---------- */
.tool-section { padding: 10px 0 8px; }
.error-box {
  border-radius: 10px; padding: 10px 14px; font-size: 0.92rem; margin: 0 0 14px;
  background: var(--danger-bg); border: 1px solid rgba(248, 113, 113, 0.35); color: #fca5a5;
}
.dropzone {
  border: 2px dashed rgba(139, 92, 246, 0.45); border-radius: var(--radius);
  background: rgba(139, 92, 246, 0.06); text-align: center;
  padding: 36px 16px; cursor: pointer;
  transition: border-color 0.18s ease, background 0.18s ease, transform 0.18s var(--ease-out);
}
.dropzone:hover { border-color: var(--violet-400); background: rgba(139, 92, 246, 0.12); transform: translateY(-2px); }
.dropzone:focus { outline: none; box-shadow: var(--focus-ring); border-color: var(--violet-400); }
.dropzone.drag { border-color: var(--orange-400); background: rgba(249, 115, 22, 0.10); border-style: solid; transform: scale(1.01); }
.dropzone-icon { color: var(--violet-400); margin-bottom: 10px; animation: bounce-icon 2.6s ease-in-out infinite; }
@keyframes bounce-icon { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-8px); } }
.dropzone-title { margin: 0 0 4px; font-size: 1.1rem; font-weight: 700; }
.dropzone-sub { margin: 0; color: var(--muted); font-size: 0.9rem; }

.toolbar { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-top: 14px; flex-wrap: wrap; }
.count-badge {
  font-size: 0.8rem; font-weight: 800; color: var(--violet-400);
  border: 1px solid var(--line); background: rgba(139, 92, 246, 0.1);
  padding: 4px 12px; border-radius: 999px;
}
.toolbar-actions { display: flex; gap: 6px; margin-left: auto; }
.empty-state { color: var(--faint); text-align: center; margin: 18px 0 4px; font-size: 0.95rem; }

.thumbs {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(104px, 1fr));
  gap: 12px; margin-top: 14px;
}
.thumb {
  position: relative; border: 2px solid transparent; border-radius: 12px;
  background: var(--bg-800); padding: 8px; cursor: grab;
  transition: border-color 0.15s ease, transform 0.15s var(--ease-out), box-shadow 0.15s ease, opacity 0.15s;
  animation: thumb-in 0.4s var(--ease-out) both;
}
@keyframes thumb-in { from { opacity: 0; transform: scale(0.92); } to { opacity: 1; transform: none; } }
.thumb:hover { transform: translateY(-3px); }
.thumb img { width: 100%; aspect-ratio: 3 / 4; object-fit: cover; border-radius: 8px; display: block; background: #0d0b16; pointer-events: none; }
.thumb.dragging { opacity: 0.45; cursor: grabbing; }
.thumb.over { border-color: var(--orange-400); box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.25); }
.thumb-num {
  position: absolute; top: 4px; left: 4px; z-index: 2;
  font-size: 0.7rem; font-weight: 800; color: #fff;
  background: rgba(18, 16, 29, 0.85); border: 1px solid var(--line);
  border-radius: 999px; padding: 1px 8px;
}
.thumb-meta {
  display: block; font-size: 0.68rem; color: var(--faint); text-align: center;
  margin-top: 6px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.thumb-rm {
  position: absolute; top: 4px; right: 4px; z-index: 2;
  width: 24px; height: 24px; border-radius: 50%; border: none; cursor: pointer;
  background: rgba(18, 16, 29, 0.9); color: var(--danger); font-size: 1rem; line-height: 1;
  display: flex; align-items: center; justify-content: center;
}
.thumb-rm:hover { background: var(--danger); color: #fff; }
.thumb-rm:focus { outline: none; box-shadow: var(--focus-ring); }

/* options */
.options {
  margin-top: 18px; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 16px 18px; background: rgba(139, 92, 246, 0.05);
}
.options legend { font-weight: 800; padding: 0 8px; }
.opt-group { display: flex; flex-wrap: wrap; align-items: center; gap: 6px 14px; margin-bottom: 10px; }
.opt-group:last-child { margin-bottom: 0; }
.opt-label { font-size: 0.85rem; font-weight: 700; color: var(--muted); min-width: 130px; }
.opt-group label { font-size: 0.92rem; cursor: pointer; display: inline-flex; align-items: center; gap: 6px; padding: 6px 4px; }
.opt-group input[type="radio"] { accent-color: var(--violet-500); width: 17px; height: 17px; }
.opt-group input[type="radio"]:focus { outline: none; box-shadow: var(--focus-ring); border-radius: 50%; }

/* buttons */
.btn {
  font: inherit; font-weight: 700; border-radius: 12px; cursor: pointer;
  padding: 12px 20px; border: 1px solid transparent; min-height: 52px;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  transition: transform 0.15s var(--ease-out), box-shadow 0.15s, background 0.15s, color 0.15s;
}
.btn:focus { outline: none; box-shadow: var(--focus-ring); }
.btn-primary {
  background: linear-gradient(135deg, var(--violet-500), var(--violet-700));
  color: #fff; box-shadow: 0 10px 30px -8px rgba(139, 92, 246, 0.55);
}
.btn-primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 16px 38px -8px rgba(139, 92, 246, 0.65); }
.btn-primary:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }
.btn-ghost { background: transparent; color: var(--muted); border: none; padding: 8px 12px; min-height: 40px; font-size: 0.9rem; }
.btn-ghost:hover { color: var(--ink); background: rgba(139, 92, 246, 0.12); }
.btn-big { width: 100%; font-size: 1.05rem; padding: 15px 28px; margin-top: 18px; }

/* progress */
.progress-wrap { margin-top: 18px; }
.progress-track { height: 12px; background: var(--bg-950); border: 1px solid var(--line); border-radius: 999px; overflow: hidden; }
.progress-bar {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--violet-500), var(--orange-400));
  background-size: 200% 100%; border-radius: 999px; transition: width 0.2s ease;
  animation: progress-shimmer 1.6s linear infinite;
}
@keyframes progress-shimmer { to { background-position: -200% 0; } }
.progress-text { margin: 8px 0 0; font-size: 0.92rem; color: var(--muted); }

/* result */
.result-card {
  margin-top: 20px; border: 1px solid rgba(52, 211, 153, 0.35);
  background: var(--success-bg); border-radius: var(--radius); padding: 22px;
  animation: card-slide-in 0.45s var(--ease-out); text-align: center;
}
@keyframes card-slide-in { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: none; } }
.result-card h2 { margin: 0 0 8px; color: var(--success); font-size: 1.25rem; }
.result-meta { margin: 0 0 16px; color: var(--muted); }

/* content */
.content { padding: 26px 0 10px; }
.content h2 { font-size: 1.32rem; margin: 30px 0 12px; letter-spacing: -0.02em; }
.content h2:first-child { margin-top: 0; }
.content p, .content li { color: var(--muted); }
.content strong { color: var(--ink); }
.steps { margin: 0; padding-left: 1.4rem; display: flex; flex-direction: column; gap: 10px; }
.feature-grid { display: flex; flex-direction: column; gap: 12px; margin-top: 14px; }
.feature-card {
  border: 1px solid var(--line); border-radius: 14px; padding: 18px;
  background: rgba(31, 27, 51, 0.5);
  transition: transform 0.2s var(--ease-out), border-color 0.2s;
}
.feature-card:hover { transform: translateY(-3px); border-color: rgba(139, 92, 246, 0.5); }
.feature-card h3 { font-size: 1.02rem; margin: 0 0 6px; color: var(--violet-400); }
.feature-card p { margin: 0; font-size: 0.94rem; }
.use-cases { margin: 0; padding-left: 1.2rem; display: flex; flex-direction: column; gap: 10px; }
.table-wrap { overflow-x: auto; margin-top: 14px; border-radius: 12px; border: 1px solid var(--line); }
table.compare { width: 100%; border-collapse: collapse; font-size: 0.9rem; min-width: 560px; }
.compare th, .compare td { padding: 10px 14px; text-align: left; border-bottom: 1px solid var(--line); }
.compare th { background: rgba(139, 92, 246, 0.1); font-weight: 700; color: var(--ink); }
.compare td { color: var(--muted); }
.compare td:first-child { color: var(--ink); font-weight: 600; }
.table-note { font-size: 0.82rem; color: var(--faint); margin: 8px 0 0; }
.limits { margin: 0; padding-left: 1.2rem; display: flex; flex-direction: column; gap: 8px; }
.faq details {
  border: 1px solid var(--line); border-radius: 12px; padding: 13px 16px;
  margin-bottom: 8px; background: rgba(31, 27, 51, 0.5); transition: border-color 0.15s;
}
.faq details[open] { border-color: rgba(139, 92, 246, 0.45); }
.faq summary { cursor: pointer; font-weight: 700; color: var(--ink); }
.faq summary:focus { outline: none; box-shadow: var(--focus-ring); border-radius: 4px; }
.faq details p { margin: 8px 0 0; font-size: 0.95rem; }

/* footer */
.site-footer { border-top: 1px solid var(--line); margin-top: 36px; padding: 22px 0 36px; color: var(--faint); font-size: 0.88rem; }
.footer-title { font-weight: 700; color: var(--muted); margin: 0 0 8px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 6px 18px; margin: 0 0 12px; padding: 0; list-style: none; }
.footer-nav a { color: var(--muted); text-decoration: none; font-size: 0.85rem; }
.footer-nav a:hover { color: var(--violet-400); text-decoration: underline; text-underline-offset: 3px; }
.footer-note { margin: 4px 0; }

@media (min-width: 640px) {
  .hero h1 { font-size: 2.6rem; }
  .btn-big { width: auto; min-width: 320px; }
  .feature-grid { flex-direction: row; }
  .feature-card { flex: 1; }
  .thumbs { grid-template-columns: repeat(auto-fill, minmax(124px, 1fr)); }
  .opt-label { min-width: 150px; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
}

/* ============================================================
   PREMIUM alignment to homepage-premium reference (2026-10-12)
   Adds: 3D-tilt support class (used by tilt-snippet.js),
   hero perspective for tilt depth, overflow-x guard.
   No class names or IDs renamed; functionality unchanged.
   ============================================================ */
.tilt-3d { transform-style: preserve-3d; will-change: transform; transition: transform 0.18s ease-out; }
.hero { perspective: 1200px; }
body { overflow-x: hidden; }
html, body { overflow-x: clip; }