/* ═══════════════════════════════════════════════════════
   style.css — NEXUS Converter Pro
   Dark Cyberpunk · Neon Glow · Glassmorphism
   ═══════════════════════════════════════════════════════ */

/* ── GOOGLE FONTS ───────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Orbitron:wght@400;500;600;700;800;900&family=Exo+2:ital,wght@0,300;0,400;0,500;0,600;1,300&family=Noto+Sans+JP:wght@300;400;500&display=swap');

/* ── CSS VARIABLES ──────────────────────────── */
:root {
  --bg-0:         #020A16;
  --bg-1:         #050E1C;
  --bg-2:         #0A1628;
  --bg-card:      rgba(0, 245, 255, 0.03);
  --bg-card-h:    rgba(0, 245, 255, 0.07);

  --cyan:         #00F5FF;
  --cyan-dim:     #00B8C4;
  --cyan-glow:    rgba(0, 245, 255, 0.25);
  --magenta:      #FF006E;
  --magenta-dim:  #CC0059;
  --magenta-glow: rgba(255, 0, 110, 0.25);
  --purple:       #7B2FBE;
  --purple-dim:   #5E1FA0;
  --purple-glow:  rgba(123, 47, 190, 0.25);
  --gold:         #FFD700;
  --gold-glow:    rgba(255, 215, 0, 0.2);

  --text-1:       #E8F4FD;
  --text-2:       #8BADC5;
  --text-3:       #4A6A85;

  --border:       rgba(0, 245, 255, 0.15);
  --border-h:     rgba(0, 245, 255, 0.35);

  --font-head:    'Orbitron', monospace;
  --font-body:    'Exo 2', 'Noto Sans JP', sans-serif;

  --radius-sm:    8px;
  --radius-md:    14px;
  --radius-lg:    20px;
  --radius-xl:    28px;

  --shadow-neon-c: 0 0 20px var(--cyan-glow), 0 0 60px rgba(0,245,255,0.1);
  --shadow-neon-m: 0 0 20px var(--magenta-glow), 0 0 60px rgba(255,0,110,0.1);
  --shadow-neon-p: 0 0 20px var(--purple-glow), 0 0 60px rgba(123,47,190,0.1);
  --shadow-card:   0 8px 32px rgba(0,0,0,0.4), 0 2px 8px rgba(0,0,0,0.3);

  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.45s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; font-size: 16px; }

body {
  background-color: var(--bg-0);
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -10%, rgba(0,245,255,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 100%, rgba(255,0,110,0.05) 0%, transparent 50%),
    radial-gradient(ellipse 40% 30% at 10% 80%, rgba(123,47,190,0.05) 0%, transparent 50%);
  color: var(--text-1);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  user-select: none;
  -webkit-user-select: none;
  -ms-user-select: none;
}

/* Allow select on inputs */
input, textarea, [contenteditable] {
  user-select: text;
  -webkit-user-select: text;
}

/* ── GRID BACKGROUND ────────────────────────── */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0,245,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,245,255,0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ── SCROLLBAR ──────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-1); }
::-webkit-scrollbar-thumb { background: var(--cyan-dim); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--cyan); }

/* ── SELECTION (disabled by security.js) ────── */
::selection { background: rgba(0,245,255,0.2); color: var(--text-1); }

/* ── WRAPPER ────────────────────────────────── */
.page-wrapper {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── NAVBAR ─────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(5, 14, 28, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
}

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 16px;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  width: 40px;
  height: 40px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-mark svg { width: 40px; height: 40px; }

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--cyan);
  letter-spacing: 0.1em;
  text-shadow: 0 0 20px var(--cyan-glow);
}

.logo-sub {
  font-size: 0.6rem;
  font-weight: 500;
  color: var(--text-3);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* Navbar actions */
.navbar-actions { display: flex; align-items: center; gap: 12px; }

/* Back button */
.btn-back {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0,245,255,0.05);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-back:hover {
  background: rgba(0,245,255,0.1);
  border-color: var(--border-h);
  color: var(--cyan);
  transform: translateX(-2px);
}

.btn-back svg { width: 16px; height: 16px; }

/* ── LANGUAGE SWITCHER ──────────────────────── */
#lang-switcher {
  display: flex;
  align-items: center;
  gap: 4px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 4px;
}

.lang-btn {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border: none;
  border-radius: 999px;
  background: transparent;
  color: var(--text-3);
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
}

.lang-btn:hover { color: var(--text-1); background: rgba(0,245,255,0.08); }
.lang-btn.active { background: var(--cyan); color: #000; font-weight: 700; }
.lang-flag { font-size: 0.9rem; }
.lang-code { font-size: 0.7rem; }

/* ── HERO ───────────────────────────────────── */
.hero {
  padding: 80px 24px 60px;
  text-align: center;
  position: relative;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 18px;
  background: rgba(0,245,255,0.08);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--cyan);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 24px;
  animation: fadeSlideDown 0.6s ease both;
}

.hero-badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan);
  animation: pulse 2s infinite;
}

.hero-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 16px;
  animation: fadeSlideDown 0.6s 0.1s ease both;
}

.hero-title .accent-cyan    { color: var(--cyan); text-shadow: 0 0 30px var(--cyan-glow); }
.hero-title .accent-magenta { color: var(--magenta); text-shadow: 0 0 30px var(--magenta-glow); }

.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-2);
  max-width: 560px;
  margin: 0 auto 16px;
  animation: fadeSlideDown 0.6s 0.2s ease both;
}

/* ── TOOL CARDS (Page 1) ────────────────────── */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 28px;
  padding: 0 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.tool-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 40px 32px 36px;
  cursor: pointer;
  transition: all var(--transition);
  overflow: hidden;
  opacity: 0;
  transform: translateY(20px);
}

.tool-card.animate-in {
  animation: cardReveal 0.6s ease both;
}

.tool-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: linear-gradient(135deg, var(--card-glow, var(--cyan-glow)) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-slow);
}

.tool-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--card-accent, var(--cyan)), transparent);
  transform: scaleX(0);
  transition: transform var(--transition-slow);
}

.tool-card:hover {
  border-color: var(--card-accent, var(--cyan));
  transform: translateY(-6px) scale(1.01);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), var(--shadow-neon-c);
}

.tool-card:hover::before { opacity: 1; }
.tool-card:hover::after  { transform: scaleX(1); }

/* Tool card color variants */
.tool-card[data-tool="pdf"]      { --card-accent: var(--magenta); --card-glow: var(--magenta-glow); }
.tool-card[data-tool="subtitle"] { --card-accent: var(--cyan); --card-glow: var(--cyan-glow); }
.tool-card[data-tool="image"]    { --card-accent: var(--purple); --card-glow: var(--purple-glow); }

.tool-card[data-tool="pdf"]:hover      { box-shadow: 0 20px 60px rgba(0,0,0,0.4), var(--shadow-neon-m); }
.tool-card[data-tool="subtitle"]:hover { box-shadow: 0 20px 60px rgba(0,0,0,0.4), var(--shadow-neon-c); }
.tool-card[data-tool="image"]:hover    { box-shadow: 0 20px 60px rgba(0,0,0,0.4), var(--shadow-neon-p); }

.tool-icon {
  width: 72px; height: 72px;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.tool-icon svg { width: 100%; height: 100%; }

.tool-badge {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.tool-card[data-tool="pdf"]      .tool-badge { background: rgba(255,0,110,0.15); color: var(--magenta); border: 1px solid rgba(255,0,110,0.3); }
.tool-card[data-tool="subtitle"] .tool-badge { background: rgba(0,245,255,0.1);  color: var(--cyan);    border: 1px solid rgba(0,245,255,0.2); }
.tool-card[data-tool="image"]    .tool-badge { background: rgba(123,47,190,0.15);color: var(--purple);  border: 1px solid rgba(123,47,190,0.3); }

.tool-name {
  font-family: var(--font-head);
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--text-1);
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.tool-desc {
  font-size: 0.9rem;
  color: var(--text-2);
  line-height: 1.65;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.tool-features {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 28px;
  position: relative;
  z-index: 1;
}

.tool-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 999px;
  font-size: 0.7rem;
  color: var(--text-3);
  font-weight: 500;
}

/* ── BUTTONS ─────────────────────────────────── */
.btn-primary, .btn-secondary, .btn-ghost, .btn-danger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 24px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: all var(--transition);
  border: 1px solid transparent;
  text-decoration: none;
  position: relative;
  overflow: hidden;
  white-space: nowrap;
}

.btn-primary {
  background: var(--cyan);
  color: #020A16;
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--cyan-glow);
}
.btn-primary:hover {
  background: #2EFAFF;
  box-shadow: 0 0 40px var(--cyan-glow), 0 0 80px rgba(0,245,255,0.2);
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--cyan);
  border-color: var(--border-h);
}
.btn-secondary:hover {
  background: rgba(0,245,255,0.08);
  border-color: var(--cyan);
  box-shadow: 0 0 20px var(--cyan-glow);
}

.btn-ghost {
  background: rgba(255,255,255,0.04);
  color: var(--text-2);
  border-color: var(--border);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.08);
  color: var(--text-1);
}

.btn-danger {
  background: rgba(255,0,110,0.1);
  color: var(--magenta);
  border-color: rgba(255,0,110,0.3);
}
.btn-danger:hover {
  background: rgba(255,0,110,0.2);
  box-shadow: var(--shadow-neon-m);
}

/* Full-width variant */
.btn-block { width: 100%; }

/* Btn icon */
.btn-icon { width: 18px; height: 18px; flex-shrink: 0; }

/* Ripple */
.ripple {
  position: absolute;
  border-radius: 50%;
  background: rgba(255,255,255,0.2);
  transform: translate(-50%, -50%) scale(0);
  animation: ripple-anim 0.5s ease-out forwards;
  width: 100px; height: 100px;
  pointer-events: none;
}

/* ── FEATURE CARDS (Page 2) ─────────────────── */
.features-section {
  padding: 40px 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
}

.features-header {
  display: flex;
  align-items: center;
  gap: 20px;
  margin-bottom: 40px;
}

.features-header-icon { width: 56px; height: 56px; }
.features-header-icon svg { width: 100%; height: 100%; }

.features-header-text h1 {
  font-family: var(--font-head);
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.features-header-text p {
  color: var(--text-2);
  font-size: 0.9rem;
  margin-top: 4px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  opacity: 0;
  transform: translateY(16px);
}

.feature-card.animate-in { animation: cardReveal 0.5s ease both; }

.feature-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--card-accent, var(--cyan)), transparent);
  transform: scaleX(0);
  transition: transform 0.35s ease;
}

.feature-card:hover {
  border-color: var(--card-accent, var(--cyan));
  background: var(--bg-card-h);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.feature-card:hover::before { transform: scaleX(1); }

.feature-num {
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--text-3);
  letter-spacing: 0.1em;
  margin-bottom: 14px;
}

.feature-icon {
  width: 44px; height: 44px;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  font-size: 1.4rem;
}

.feature-name {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--text-1);
  margin-bottom: 8px;
}

.feature-desc {
  font-size: 0.82rem;
  color: var(--text-2);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* ── PROCESSING PAGE (Page 3) ───────────────── */
.processing-layout {
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 28px;
  padding: 32px 24px 80px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: start;
}

@media (max-width: 900px) {
  .processing-layout { grid-template-columns: 1fr; }
}

.processing-main { display: flex; flex-direction: column; gap: 24px; }

/* Processing header */
.processing-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.processing-header-icon { font-size: 2rem; }

.processing-header-title {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.processing-header-sub { font-size: 0.8rem; color: var(--text-2); }

/* Drop Zone */
.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 60px 40px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-card);
  position: relative;
}

.dropzone:hover, .dropzone.drag-over {
  border-color: var(--cyan);
  background: rgba(0,245,255,0.04);
  box-shadow: 0 0 40px rgba(0,245,255,0.06) inset;
}

.dropzone-icon { font-size: 3rem; margin-bottom: 16px; display: block; }

.dropzone-label {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-1);
  margin-bottom: 8px;
}

.dropzone-hint { font-size: 0.82rem; color: var(--text-3); }

.dropzone-accept {
  display: inline-block;
  margin-top: 12px;
  padding: 4px 14px;
  background: rgba(0,245,255,0.08);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.72rem;
  color: var(--cyan);
  letter-spacing: 0.06em;
  font-weight: 600;
}

/* File list */
.file-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 12px;
}

.file-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 16px;
  background: rgba(0,245,255,0.04);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  color: var(--text-2);
}

.file-item-icon { font-size: 1.1rem; }
.file-item-name { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.file-item-size { font-size: 0.75rem; color: var(--text-3); flex-shrink: 0; }
.file-item-remove {
  background: none; border: none; cursor: pointer;
  color: var(--text-3); font-size: 1rem; padding: 2px;
  transition: color var(--transition);
}
.file-item-remove:hover { color: var(--magenta); }

/* Progress */
#progress-wrap {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
}

.progress-track {
  height: 6px;
  background: rgba(255,255,255,0.06);
  border-radius: 3px;
  overflow: hidden;
  margin-bottom: 8px;
}

#progress-bar {
  height: 100%;
  border-radius: 3px;
  background: linear-gradient(90deg, var(--cyan), #00BFFF);
  box-shadow: 0 0 10px var(--cyan-glow);
  transition: width 0.3s ease;
  width: 0%;
}

#progress-text { font-size: 0.8rem; color: var(--text-2); }

/* Status */
.status-line {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
}

#status-text { color: var(--text-2); }
#status-text.status-done  { color: #00FF88; }
#status-text.status-error { color: var(--magenta); }
#status-text.status-proc  { color: var(--cyan); }

/* Convert button */
.convert-actions {
  display: flex;
  gap: 12px;
}

/* Settings Panel */
.settings-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.settings-panel-header {
  padding: 16px 20px;
  background: rgba(0,245,255,0.04);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--cyan);
  text-transform: uppercase;
}

.settings-panel-body { padding: 20px; display: flex; flex-direction: column; gap: 16px; }

/* Setting groups */
.setting-group { display: flex; flex-direction: column; gap: 8px; }
.setting-label { font-size: 0.8rem; font-weight: 600; color: var(--text-2); letter-spacing: 0.04em; }
.setting-input {
  padding: 9px 14px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-1);
  font-family: var(--font-body);
  font-size: 0.85rem;
  width: 100%;
  transition: border-color var(--transition);
  user-select: text;
}
.setting-input:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 12px rgba(0,245,255,0.1); }
.setting-textarea { min-height: 100px; resize: vertical; }
.setting-color { padding: 4px; width: 48px; height: 36px; border-radius: var(--radius-sm); cursor: pointer; }
.setting-note { font-size: 0.78rem; color: var(--text-3); line-height: 1.5; padding: 10px 14px; background: rgba(255,255,255,0.02); border-radius: var(--radius-sm); border: 1px solid var(--border); }

/* Btn group (toggle) */
.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.btn-toggle {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--text-3);
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-toggle:hover { border-color: var(--border-h); color: var(--text-1); }
.btn-toggle.active { background: var(--cyan); border-color: var(--cyan); color: #020A16; box-shadow: 0 0 12px var(--cyan-glow); }

/* Slider */
.slider {
  -webkit-appearance: none;
  width: 100%;
  height: 4px;
  border-radius: 2px;
  background: rgba(255,255,255,0.1);
  outline: none;
  cursor: pointer;
}
.slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
  cursor: pointer;
}
.slider::-moz-range-thumb {
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 8px var(--cyan-glow);
  cursor: pointer;
  border: none;
}

/* Toggle switch */
.toggle-switch { position: relative; display: inline-block; width: 44px; height: 24px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider {
  position: absolute;
  inset: 0;
  background: rgba(255,255,255,0.1);
  border-radius: 24px;
  cursor: pointer;
  transition: background var(--transition);
  border: 1px solid var(--border);
}
.toggle-slider::before {
  content: '';
  position: absolute;
  left: 3px; top: 3px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: var(--text-3);
  transition: transform var(--transition), background var(--transition);
}
.toggle-switch input:checked + .toggle-slider { background: rgba(0,245,255,0.2); border-color: var(--cyan); }
.toggle-switch input:checked + .toggle-slider::before { transform: translateX(20px); background: var(--cyan); }

/* Checkbox group */
.checkbox-group { display: flex; flex-direction: column; gap: 8px; }
.checkbox-group label {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  color: var(--text-2);
  cursor: pointer;
}
.checkbox-group input[type="checkbox"] { accent-color: var(--cyan); }

/* Output section */
.output-section {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.output-section-header {
  padding: 14px 20px;
  background: rgba(0,255,136,0.04);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 700;
  color: #00FF88;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.output-section-body { padding: 20px; }

#output-info { margin-top: 12px; }

.output-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.stat {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  text-align: center;
}
.stat span { display: block; font-size: 0.72rem; color: var(--text-3); margin-bottom: 4px; }
.stat strong { font-size: 0.95rem; font-weight: 700; color: var(--text-1); }
.stat.accent strong { color: #00FF88; }

/* Text preview */
#text-preview, .text-preview {
  display: none;
  width: 100%;
  min-height: 120px;
  padding: 14px;
  background: rgba(0,0,0,0.4);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-2);
  font-family: 'Courier New', monospace;
  font-size: 0.78rem;
  line-height: 1.6;
  resize: vertical;
  user-select: text;
  overflow-y: auto;
  max-height: 300px;
}

/* Image preview */
#img-preview {
  display: none;
  max-width: 100%;
  max-height: 300px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  object-fit: contain;
  background: rgba(0,0,0,0.3);
}

/* Output preview grid (PDF pages) */
#output-preview-grid {
  display: none;
  grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
  gap: 8px;
  margin-top: 12px;
}
.preview-thumb {
  width: 100%;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform var(--transition);
}
.preview-thumb:hover { transform: scale(1.05); }

/* Subtitle preview player */
#subtitle-preview-player {
  display: none;
  background: #000;
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-top: 12px;
  position: relative;
}
#preview-video { width: 100%; max-height: 240px; display: block; }
#sub-display {
  position: absolute;
  bottom: 8px; left: 50%; transform: translateX(-50%);
  background: rgba(0,0,0,0.75);
  color: #fff;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.9rem;
  text-align: center;
  max-width: 90%;
}

/* ── SECURITY OVERLAY ────────────────────────── */
#security-overlay {
  display: none;
  opacity: 0;
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(2, 10, 22, 0.97);
  backdrop-filter: blur(20px);
  align-items: center;
  justify-content: center;
  text-align: center;
  transition: opacity 0.3s ease;
}

.sec-box {
  padding: 48px 40px;
  background: rgba(255,0,110,0.05);
  border: 1px solid rgba(255,0,110,0.2);
  border-radius: var(--radius-xl);
  max-width: 400px;
}

.sec-box h2 {
  font-family: var(--font-head);
  font-size: 1.5rem;
  color: var(--magenta);
  margin: 20px 0 12px;
}

.sec-box p { color: var(--text-2); font-size: 0.9rem; line-height: 1.6; }

.sec-box button {
  margin-top: 24px;
  padding: 10px 24px;
  background: var(--magenta);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  cursor: pointer;
}

/* ── PRINT BLOCKER ───────────────────────────── */
#print-blocker {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 99999;
  background: #020A16;
  align-items: center;
  justify-content: center;
  text-align: center;
}
#print-blocker div { padding: 40px; }
#print-blocker h1 { font-family: var(--font-head); color: var(--cyan); }
#print-blocker p  { color: var(--text-2); margin-top: 12px; }

@media print {
  body * { display: none !important; }
  #print-blocker { display: flex !important; }
}

/* ── SECURITY BADGE ──────────────────────────── */
.security-badge {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0,255,136,0.04);
  border: 1px solid rgba(0,255,136,0.15);
  border-radius: 999px;
  font-size: 0.75rem;
  color: #00CC6A;
  font-weight: 500;
}

.security-badge-icon { font-size: 0.9rem; }

/* ── ORDER LIST (PDF Merge) ──────────────────── */
.order-list { display: flex; flex-direction: column; gap: 6px; max-height: 160px; overflow-y: auto; }
.order-item {
  display: flex; align-items: center; gap: 8px;
  padding: 6px 10px;
  background: rgba(0,0,0,0.3);
  border: 1px solid var(--border);
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--text-2);
  cursor: grab;
}
.order-item:active { cursor: grabbing; }
.drag-handle { color: var(--text-3); font-size: 0.9rem; }

/* ── FOOTER ──────────────────────────────────── */
.footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 24px;
  text-align: center;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-copyright { font-size: 0.78rem; color: var(--text-3); }
.footer-note {
  font-size: 0.75rem;
  color: var(--text-3);
  max-width: 400px;
  line-height: 1.5;
}

/* ── TOAST ───────────────────────────────────── */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 9990;
  display: flex;
  flex-direction: column;
  gap: 10px;
  max-width: 360px;
}

.toast {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  background: var(--bg-2);
  border: 1px solid var(--border);
  box-shadow: 0 8px 30px rgba(0,0,0,0.4);
  font-size: 0.85rem;
  color: var(--text-1);
  opacity: 0;
  transform: translateX(20px);
  transition: opacity 0.3s ease, transform 0.3s ease;
}

.toast.show { opacity: 1; transform: translateX(0); }
.toast-success { border-color: rgba(0,255,136,0.3); }
.toast-error   { border-color: rgba(255,0,110,0.3); }
.toast-warning { border-color: rgba(255,215,0,0.3); }
.toast-icon    { font-size: 1rem; flex-shrink: 0; }
.toast-msg     { flex: 1; line-height: 1.4; }

/* ── RESPONSIVE ──────────────────────────────── */
@media (max-width: 768px) {
  .hero { padding: 48px 16px 40px; }
  .hero-title { font-size: 1.8rem; }
  .tools-grid { grid-template-columns: 1fr; padding: 0 16px 60px; }
  .features-grid { grid-template-columns: 1fr; }
  .processing-layout { padding: 20px 16px 60px; }
  #lang-switcher { flex-wrap: wrap; }
  .lang-code { display: none; }
  .dropzone { padding: 40px 20px; }
  .output-stats { grid-template-columns: 1fr 1fr; }
}

/* ── COPY-BTN ─────────────────────────────────── */
#copy-b64-btn { display: none; }