@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500&display=swap');

/* ============================================================
   DESIGN SYSTEM — Variables & Reset
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Colors */
  --bg-dark: #050508;
  --bg: #0a0a12;
  --bg-card: #0f0f1a;
  --bg-card-hover: #14142a;
  --bg-glass: rgba(15, 15, 30, 0.6);
  --bg-glass-strong: rgba(15, 15, 30, 0.85);
  --surface: rgba(20, 20, 42, 0.5);
  --surface-solid: #12122a;

  --border: rgba(255, 255, 255, 0.06);
  --border-hover: rgba(255, 255, 255, 0.12);
  --border-active: rgba(139, 92, 246, 0.5);

  --text: #f0f0ff;
  --text-secondary: #a0a0c0;
  --text-muted: #606080;

  /* Brand Gradient */
  --g1: #8b5cf6;
  --g2: #06b6d4;
  --g3: #10b981;
  --g4: #f59e0b;
  --g5: #ec4899;

  --primary: #8b5cf6;
  --primary-glow: rgba(139, 92, 246, 0.25);
  --accent: #06b6d4;
  --accent-glow: rgba(6, 182, 212, 0.2);
  --success: #10b981;
  --success-glow: rgba(16, 185, 129, 0.2);
  --warning: #f59e0b;
  --danger: #ef4444;
  --pink: #ec4899;

  /* Spacing */
  --r-xl: 24px;
  --r-lg: 16px;
  --r-md: 12px;
  --r-sm: 8px;
  --r-xs: 6px;

  /* Effects */
  --glass-blur: blur(20px);
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.3);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.4);
  --shadow-lg: 0 16px 64px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(139, 92, 246, 0.15);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-bounce: 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--accent); }

::selection { background: rgba(139, 92, 246, 0.3); color: #fff; }

/* ============================================================
   ANIMATED BACKGROUND
   ============================================================ */
.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.bg-glow::before {
  content: '';
  position: absolute;
  top: -30%;
  left: -10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(139, 92, 246, 0.08) 0%, transparent 70%);
  animation: floatOrb1 20s ease-in-out infinite;
}

.bg-glow::after {
  content: '';
  position: absolute;
  bottom: -20%;
  right: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(6, 182, 212, 0.06) 0%, transparent 70%);
  animation: floatOrb2 25s ease-in-out infinite;
}

@keyframes floatOrb1 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(30vw, 20vh) scale(1.2); }
  66% { transform: translate(10vw, 40vh) scale(0.9); }
}

@keyframes floatOrb2 {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33% { transform: translate(-20vw, -10vh) scale(1.1); }
  66% { transform: translate(-30vw, 15vh) scale(0.85); }
}

/* Grid pattern overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
  z-index: 0;
}

/* ============================================================
   HEADER — Glassmorphism navbar
   ============================================================ */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--bg-glass-strong);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border-bottom: 1px solid var(--border);
  padding: 0;
  transition: all var(--transition);
}

.header.scrolled {
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.4);
  border-bottom-color: var(--border-hover);
}

.header-inner {
  max-width: 1400px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  padding: 0.7rem 2rem;
  gap: 1.5rem;
}

.logo {
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.4rem;
  letter-spacing: -0.5px;
  white-space: nowrap;
  flex-shrink: 0;
}

.logo img {
  width: 1.3rem;
  height: 1.3rem;
  object-fit: contain;
  display: block;
  flex-shrink: 0;
}

.logo span {
  background: linear-gradient(135deg, var(--g1), var(--g2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Search */
.search-box {
  flex: 1;
  max-width: 500px;
  position: relative;
}

.search-box input {
  width: 100%;
  padding: 0.55rem 1rem 0.55rem 2.6rem;
  border-radius: var(--r-lg);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.04);
  color: var(--text);
  font-size: 0.85rem;
  font-family: inherit;
  outline: none;
  transition: all var(--transition);
}

.search-box input:focus {
  border-color: var(--primary);
  background: rgba(139, 92, 246, 0.06);
  box-shadow: 0 0 0 3px var(--primary-glow), 0 0 20px rgba(139, 92, 246, 0.1);
}

.search-box input::placeholder { color: var(--text-muted); }

.search-box::before {
  content: '🔍';
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  font-size: 0.8rem;
  pointer-events: none;
  opacity: 0.7;
}

/* Nav */
.nav-links { display: flex; gap: 0.15rem; flex-shrink: 0; }

.nav-links a {
  padding: 0.45rem 0.8rem;
  border-radius: var(--r-sm);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all var(--transition);
  white-space: nowrap;
  position: relative;
}

.nav-links a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%) scaleX(0);
  width: 60%;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: transform var(--transition);
}

.nav-links a:hover::after { transform: translateX(-50%) scaleX(1); }

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 2rem 6rem;
  position: relative;
  z-index: 1;
}

/* ============================================================
   HERO — Cinematic intro
   ============================================================ */
.hero {
  text-align: center;
  padding: 5rem 0 4rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 700px;
  height: 400px;
  background: radial-gradient(ellipse, rgba(139, 92, 246, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 900;
  letter-spacing: -2px;
  line-height: 1.1;
  margin-bottom: 1rem;
  position: relative;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--g1) 0%, var(--g2) 40%, var(--g3) 70%, var(--g5) 100%);
  background-size: 300% 300%;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: gradientShift 6s ease infinite;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  max-width: 580px;
  margin: 0 auto 2.5rem;
  font-weight: 400;
  line-height: 1.7;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 3.5rem;
}

.hero-stat {
  text-align: center;
  position: relative;
}

.hero-stat .num {
  font-size: 2.2rem;
  font-weight: 900;
  background: linear-gradient(135deg, var(--g1), var(--g2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -1px;
}

.hero-stat .label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  font-weight: 600;
  margin-top: 0.15rem;
}

/* ============================================================
   CATEGORY SECTIONS — with reveal animation
   ============================================================ */
.category-section {
  margin-top: 3.5rem;
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.category-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.category-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border);
}

.category-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.15rem;
  position: relative;
  flex-shrink: 0;
}

.category-icon.purple { background: linear-gradient(135deg, rgba(139,92,246,0.15), rgba(139,92,246,0.05)); box-shadow: 0 0 20px rgba(139,92,246,0.1); }
.category-icon.cyan { background: linear-gradient(135deg, rgba(6,182,212,0.15), rgba(6,182,212,0.05)); box-shadow: 0 0 20px rgba(6,182,212,0.1); }
.category-icon.green { background: linear-gradient(135deg, rgba(16,185,129,0.15), rgba(16,185,129,0.05)); box-shadow: 0 0 20px rgba(16,185,129,0.1); }
.category-icon.pink { background: linear-gradient(135deg, rgba(236,72,153,0.15), rgba(236,72,153,0.05)); box-shadow: 0 0 20px rgba(236,72,153,0.1); }
.category-icon.orange { background: linear-gradient(135deg, rgba(245,158,11,0.15), rgba(245,158,11,0.05)); box-shadow: 0 0 20px rgba(245,158,11,0.1); }
.category-icon.yellow { background: linear-gradient(135deg, rgba(234,179,8,0.15), rgba(234,179,8,0.05)); box-shadow: 0 0 20px rgba(234,179,8,0.1); }
.category-icon.blue { background: linear-gradient(135deg, rgba(59,130,246,0.15), rgba(59,130,246,0.05)); box-shadow: 0 0 20px rgba(59,130,246,0.1); }

.category-header h2 {
  font-size: 1.15rem;
  font-weight: 700;
  letter-spacing: -0.3px;
}

.category-header .count {
  font-size: 0.7rem;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  margin-left: auto;
  font-weight: 500;
}

/* ============================================================
   TOOL GRID & CARDS — Interactive hover cards
   ============================================================ */
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 1rem;
}

.tool-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  padding: 1.2rem;
  cursor: pointer;
  display: flex;
  align-items: flex-start;
  gap: 0.85rem;
  transition: all var(--transition);
  overflow: hidden;
  isolation: isolate;
}

/* Glow effect behind card on hover */
.tool-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--r-lg);
  padding: 1px;
  background: linear-gradient(135deg, var(--g1), var(--g2), var(--g3));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
}

/* Radial glow on hover */
.tool-card::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at var(--mouse-x, 50%) var(--mouse-y, 50%), rgba(139, 92, 246, 0.08), transparent 60%);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.3s ease;
  z-index: -1;
}

.tool-card:hover {
  border-color: transparent;
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4), var(--shadow-glow);
  background: var(--bg-card-hover);
}

.tool-card:hover::before { opacity: 1; }
.tool-card:hover::after { opacity: 1; }

.tool-card:active { transform: translateY(-2px) scale(0.98); }

.tool-card .icon {
  font-size: 1.6rem;
  line-height: 1;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
  transition: transform var(--transition-bounce);
}

.tool-card:hover .icon { transform: scale(1.15); }

.tool-card-content {
  flex: 1;
  min-width: 0;
  position: relative;
  z-index: 1;
}

.tool-card h3 {
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.2rem;
  letter-spacing: -0.2px;
  transition: color var(--transition);
}

.tool-card:hover h3 { color: #fff; }

.tool-card p {
  color: var(--text-muted);
  font-size: 0.73rem;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}

.tool-card:hover p { color: var(--text-secondary); }

/* ===== Badges ===== */
.badge {
  display: inline-block;
  font-size: 0.55rem;
  font-weight: 700;
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.8px;
  margin-left: 0.35rem;
  vertical-align: middle;
}

.badge-popular {
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(236, 72, 153, 0.1));
  color: var(--warning);
  border: 1px solid rgba(245, 158, 11, 0.2);
}

.badge-new {
  background: linear-gradient(135deg, rgba(16, 185, 129, 0.15), rgba(6, 182, 212, 0.1));
  color: var(--success);
  border: 1px solid rgba(16, 185, 129, 0.2);
}

/* ============================================================
   TOOL PAGE LAYOUT
   ============================================================ */
.tool-page {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.5rem 2rem 5rem;
  position: relative;
  z-index: 1;
}

/* ============================================================
   TWO-COLUMN TOOL LAYOUT
   ============================================================ */
.tool-body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  align-items: start;
}

.tool-panel {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Remove individual top margins when inside two-col layout */
.tool-panel > .upload-area,
.tool-panel > .preview-section,
.tool-panel > .options-panel,
.tool-panel > .spinner,
.tool-panel > .result-section {
  margin-top: 0;
}

/* Left panel header label */
.tool-panel-label {
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

@media (max-width: 860px) {
  .tool-body {
    grid-template-columns: 1fr;
  }
}

.tool-header {
  margin-bottom: 2rem;
  animation: fadeSlideUp 0.5s ease-out both;
}

.tool-header .back {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--text-muted);
  font-size: 0.82rem;
  margin-bottom: 1rem;
  font-weight: 500;
  padding: 0.4rem 0.8rem;
  border-radius: var(--r-sm);
  transition: all var(--transition);
}

.tool-header .back:hover {
  color: var(--text);
  background: rgba(255,255,255,0.05);
}

.tool-header h1 {
  font-size: 1.9rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  letter-spacing: -0.5px;
}

.tool-header p {
  color: var(--text-secondary);
  margin-top: 0.4rem;
  font-size: 0.95rem;
}

@keyframes fadeSlideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   UPLOAD AREA — With animated border
   ============================================================ */
.upload-area {
  position: relative;
  border-radius: var(--r-xl);
  padding: 3.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--bg-card);
  border: 2px dashed rgba(255,255,255,0.08);
  animation: fadeSlideUp 0.5s ease-out 0.1s both;
}

.upload-area::before {
  content: '';
  position: absolute;
  inset: -2px;
  border-radius: var(--r-xl);
  padding: 2px;
  background: linear-gradient(135deg, var(--g1), var(--g2), var(--g3), var(--g5));
  background-size: 300% 300%;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.4s ease;
  animation: gradientShift 4s ease infinite;
}

.upload-area:hover { background: var(--bg-card-hover); border-color: transparent; }
.upload-area:hover::before { opacity: 1; }
.upload-area.dragover { border-color: transparent; background: rgba(139, 92, 246, 0.08); }
.upload-area.dragover::before { opacity: 1; }

.upload-area .upload-icon {
  font-size: 3rem;
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
  display: inline-block;
  animation: float 3s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.upload-area h3 {
  font-weight: 600;
  font-size: 1.05rem;
  position: relative;
  z-index: 1;
  color: var(--text);
}

.upload-area p {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-top: 0.3rem;
  position: relative;
  z-index: 1;
}

.upload-area input[type="file"] { display: none; }

/* ============================================================
   PREVIEW SECTION
   ============================================================ */
.preview-section {
  margin-top: 1.5rem;
  display: none;
  animation: fadeSlideUp 0.4s ease-out both;
}

.preview-section.visible { display: block; }

.preview-container {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 1.25rem;
  text-align: center;
}

.preview-container img,
.preview-container video {
  max-width: 100%;
  max-height: 400px;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
}

.preview-info {
  margin-top: 0.65rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-family: 'JetBrains Mono', monospace;
}

/* ============================================================
   OPTIONS PANEL
   ============================================================ */
.options-panel {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 1.75rem;
  margin-top: 1.5rem;
  display: none;
  animation: fadeSlideUp 0.4s ease-out both;
}

.options-panel.visible { display: block; }

.options-panel h3 {
  margin-bottom: 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--text);
}

.form-group { margin-bottom: 1.15rem; }

.form-group label {
  display: block;
  margin-bottom: 0.4rem;
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: rgba(255,255,255,0.03);
  color: var(--text);
  font-size: 0.88rem;
  font-family: inherit;
  outline: none;
  transition: all var(--transition);
}

.form-group textarea { resize: vertical; min-height: 80px; }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  background: rgba(139, 92, 246, 0.04);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.form-row-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.form-row-4 { display: grid; grid-template-columns: 1fr 1fr 1fr 1fr; gap: 1rem; }

.checkbox-group { display: flex; align-items: center; gap: 0.6rem; }
.checkbox-group input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--primary); border-radius: 4px; }

.range-value {
  display: inline-block;
  background: linear-gradient(135deg, var(--g1), var(--g2));
  color: #fff;
  padding: 0.15rem 0.55rem;
  border-radius: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  margin-left: 0.4rem;
  font-family: 'JetBrains Mono', monospace;
}

.hint {
  font-size: 0.73rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
}

/* Input specials */
input[type="color"] {
  height: 44px;
  padding: 4px;
  cursor: pointer;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
  background: transparent;
}

input[type="range"] {
  width: 100%;
  accent-color: var(--primary);
  height: 6px;
  cursor: pointer;
}

/* ============================================================
   BUTTONS — Glowing gradient buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--r-md);
  border: none;
  font-size: 0.88rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.btn:active { transform: scale(0.96); }

.btn-primary {
  background: linear-gradient(135deg, var(--g1), var(--primary));
  color: #fff;
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.9rem;
  border-radius: var(--r-lg);
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.3);
  letter-spacing: 0.2px;
}

.btn-primary::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}

.btn-primary:hover {
  box-shadow: 0 8px 30px rgba(139, 92, 246, 0.45);
  transform: translateY(-2px);
}

.btn-primary:hover::before { opacity: 1; }

.btn-primary:disabled {
  opacity: 0.35;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.btn-primary.waiting-upload {
  background: rgba(255,255,255,0.06);
  box-shadow: none;
  color: var(--text-muted);
  border: 1px dashed rgba(255,255,255,0.12);
}

.btn-primary.waiting-upload::after {
  content: ' — upload a file first';
  font-weight: 400;
  opacity: 0.6;
  font-size: 0.78em;
}

.btn-success {
  background: linear-gradient(135deg, var(--success), var(--accent));
  color: #fff;
  padding: 0.75rem 2.5rem;
  border-radius: var(--r-lg);
  box-shadow: 0 4px 20px var(--success-glow);
}

.btn-success:hover {
  box-shadow: 0 8px 30px rgba(16, 185, 129, 0.4);
  transform: translateY(-2px);
}

/* ============================================================
   RESULT SECTION
   ============================================================ */
.result-section {
  margin-top: 1.5rem;
  display: none;
  animation: fadeSlideUp 0.5s ease-out both;
}

.result-section.visible { display: block; }

.result-card {
  background: var(--bg-card);
  border: 1px solid rgba(16, 185, 129, 0.2);
  border-radius: var(--r-xl);
  padding: 2rem;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.result-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at top, var(--success-glow), transparent 60%);
  pointer-events: none;
}

.result-card h3 {
  color: var(--success);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  position: relative;
  z-index: 1;
  font-weight: 700;
  font-size: 1.1rem;
}

.result-card img {
  max-width: 100%;
  max-height: 400px;
  border-radius: var(--r-lg);
  margin-bottom: 1.25rem;
  position: relative;
  z-index: 1;
  box-shadow: var(--shadow-md);
}

.result-stats {
  display: flex;
  justify-content: center;
  gap: 2.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.result-stats .stat { text-align: center; }

.result-stats .stat-value {
  font-size: 1.4rem;
  font-weight: 800;
  background: linear-gradient(135deg, var(--success), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  font-family: 'JetBrains Mono', monospace;
}

.result-stats .stat-label {
  font-size: 0.68rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.result-actions {
  display: flex;
  gap: 0.85rem;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

/* ============================================================
   SPINNER
   ============================================================ */
.spinner { display: none; text-align: center; padding: 3rem; }
.spinner.visible { display: block; }

.spinner-circle {
  display: inline-block;
  width: 48px;
  height: 48px;
  border: 3px solid rgba(255,255,255,0.06);
  border-top-color: var(--primary);
  border-right-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

@keyframes spin { to { transform: rotate(360deg); } }

.spinner-text {
  margin-top: 0.85rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  font-weight: 500;
}

/* ============================================================
   THUMBNAILS
   ============================================================ */
.thumbnails {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 0.85rem;
  justify-content: center;
}

.thumbnails .thumb {
  width: 72px;
  height: 72px;
  object-fit: cover;
  border-radius: var(--r-sm);
  border: 2px solid var(--border);
  transition: all var(--transition);
}

.thumbnails .thumb:hover {
  border-color: var(--primary);
  transform: scale(1.08);
}

/* ============================================================
   FOOTER — Multi-column
   ============================================================ */
.footer-main {
  background: var(--bg-dark);
  border-top: 1px solid var(--border);
  position: relative;
  z-index: 1;
}

.footer-inner {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 2rem 2rem;
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 2.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  text-decoration: none;
}

.footer-logo img {
  width: 1.5rem;
  height: 1.5rem;
  object-fit: contain;
}

.footer-logo strong {
  background: linear-gradient(135deg, var(--g1), var(--g2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  margin-top: 0.25rem;
}

.footer-nav a {
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.footer-nav a:hover {
  color: var(--primary);
}

.footer-col-title {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.footer-col ul a {
  font-size: 0.82rem;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.footer-col ul a:hover {
  color: var(--accent);
}

.footer-bottom {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.footer-bottom a {
  color: var(--text-muted);
  transition: color var(--transition);
}

.footer-bottom a:hover { color: var(--primary); }

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

@media (max-width: 560px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ============================================================
   INFO PAGES — FAQ, About, Privacy
   ============================================================ */
.info-page {
  max-width: 820px;
  margin: 0 auto;
  padding: 1.5rem 2rem 5rem;
  position: relative;
  z-index: 1;
}

.info-header {
  margin-bottom: 2.5rem;
  animation: fadeSlideUp 0.5s ease-out both;
}

.info-header h1 {
  font-size: 2rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  margin-bottom: 0.4rem;
}

.info-header p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.info-content {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 1.75rem;
  animation: fadeSlideUp 0.5s ease-out both;
}

.info-card h2 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.85rem;
  color: var(--text);
}

.info-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.75;
  margin-bottom: 0.75rem;
}

.info-card p:last-child { margin-bottom: 0; }

.info-card ul {
  padding-left: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.info-card ul li {
  color: var(--text-secondary);
  font-size: 0.9rem;
  line-height: 1.6;
}

.contact-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.65rem 1.25rem;
  background: linear-gradient(135deg, rgba(139,92,246,0.12), rgba(6,182,212,0.08));
  border: 1px solid rgba(139,92,246,0.25);
  border-radius: var(--r-md);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--primary);
  transition: all var(--transition);
}

.contact-btn:hover {
  background: linear-gradient(135deg, rgba(139,92,246,0.2), rgba(6,182,212,0.15));
  border-color: var(--primary);
  color: var(--primary);
}

/* FAQ */
.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  overflow: hidden;
  animation: fadeSlideUp 0.5s ease-out both;
}

.faq-q {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text);
  padding: 1.1rem 1.5rem;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: background var(--transition);
}

.faq-q::after {
  content: '+';
  font-size: 1.2rem;
  color: var(--primary);
  transition: transform var(--transition);
  flex-shrink: 0;
}

.faq-item.open .faq-q::after { transform: rotate(45deg); }

.faq-a {
  display: none;
  padding: 0 1.5rem 1.1rem;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.75;
  border-top: 1px solid var(--border);
  padding-top: 1rem;
}

.faq-item.open .faq-a { display: block; }

/* ============================================================
   SCROLL TO TOP
   ============================================================ */
.scroll-top {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--g1), var(--g2));
  color: #fff;
  border: none;
  font-size: 1.3rem;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(139, 92, 246, 0.4);
  z-index: 999;
  opacity: 0;
  transform: translateY(20px) scale(0.8);
  transition: all var(--transition-bounce);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.visible { opacity: 1; transform: translateY(0) scale(1); }
.scroll-top:hover { transform: translateY(-4px) scale(1.05); box-shadow: 0 8px 30px rgba(139, 92, 246, 0.55); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .tools-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
}

@media (max-width: 768px) {
  .header-inner { flex-wrap: wrap; padding: 0.6rem 1rem; }
  .search-box { max-width: 100%; order: 3; width: 100%; }
  .nav-links { display: none; }
  .hero { padding: 3rem 0 2rem; }
  .hero p { font-size: 0.95rem; margin-bottom: 2rem; }
  .hero-stats { gap: 2rem; }
  .hero-stat .num { font-size: 1.6rem; }
  .tools-grid { grid-template-columns: 1fr 1fr; gap: 0.7rem; }
  .tool-card { padding: 1rem; gap: 0.65rem; }
  .tool-card .icon { font-size: 1.3rem; }
  .tool-card h3 { font-size: 0.82rem; }
  .tool-card p { font-size: 0.68rem; }
  .container, .tool-page { padding-left: 1rem; padding-right: 1rem; }
  .form-row, .form-row-3, .form-row-4 { grid-template-columns: 1fr; }
  .category-section { margin-top: 2.5rem; }
  .upload-area { padding: 2.5rem 1.5rem; }
}

@media (max-width: 480px) {
  .tools-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.5rem; flex-wrap: wrap; }
}

/* ============================================================
   NO RESULTS STATE
   ============================================================ */
.no-results {
  text-align: center;
  padding: 4rem 1rem;
  display: none;
}

.no-results.visible { display: block; }

.no-results .icon { font-size: 3rem; margin-bottom: 1rem; opacity: 0.6; }
.no-results h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 0.5rem; }
.no-results p { color: var(--text-muted); font-size: 0.9rem; }

/* ============================================================
   CARD REVEAL ANIMATION — staggered entrance
   ============================================================ */
.tool-card.card-reveal {
  animation: cardReveal 0.5s ease-out both;
}

@keyframes cardReveal {
  from {
    opacity: 0;
    transform: translateY(16px) scale(0.96);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Active nav link */
.nav-links a.active {
  color: var(--text);
  background: rgba(139, 92, 246, 0.1);
}

.nav-links a.active::after {
  transform: translateX(-50%) scaleX(1);
}