/* ==========================================================================
   PIXNIVO MODERN GLASS DESIGN SYSTEM
   Luminous Glassmorphism · Colorful Aurora Glow · Light & Dark Themes
   ========================================================================== */

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

/* ==========================================================================
   THEME DESIGN TOKENS
   ========================================================================== */

:root,
html[data-theme="dark"] {
  /* Surface & Background */
  --bg-base: #0a0814;
  --bg-subtle: #120e20;
  --bg-glass: rgba(18, 14, 28, 0.62);
  --bg-glass-hover: rgba(28, 22, 44, 0.75);
  --bg-glass-active: rgba(38, 30, 58, 0.85);
  --bg-glass-card: rgba(18, 14, 28, 0.55);
  --bg-glass-card-hover: rgba(26, 20, 42, 0.7);
  --bg-input: rgba(14, 11, 24, 0.75);
  --bg-modal: rgba(12, 9, 22, 0.9);
  
  /* Borders & Specular Light */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.15);
  --border-glass: rgba(255, 255, 255, 0.13);
  --border-glass-highlight: rgba(255, 255, 255, 0.25);
  --border-hover: rgba(255, 122, 26, 0.6);
  --border-glow: rgba(255, 107, 0, 0.4);

  /* Brand Accents & Gradients */
  --primary: #ff7a1a;
  --primary-glow: #ff5e3a;
  --primary-light: #ffa65e;
  --primary-gradient: linear-gradient(135deg, #ff5e3a 0%, #ff9500 100%);
  --primary-subtle: rgba(255, 122, 26, 0.15);
  --primary-subtle-hover: rgba(255, 122, 26, 0.25);

  /* Vivid Aurora Mesh & Orb Gradients (Dark Mode) */
  --mesh-1: rgba(147, 51, 234, 0.32); /* Electric Violet */
  --mesh-2: rgba(6, 182, 212, 0.28);   /* Radiant Cyan */
  --mesh-3: rgba(236, 72, 153, 0.25);  /* Neon Magenta */
  --mesh-4: rgba(249, 115, 22, 0.26);  /* Warm Sunset Amber */
  --mesh-5: rgba(16, 185, 129, 0.22);  /* Emerald Glow */

  --orb-1: radial-gradient(circle, rgba(168, 85, 247, 0.7) 0%, rgba(147, 51, 234, 0.35) 45%, transparent 72%);
  --orb-2: radial-gradient(circle, rgba(236, 72, 153, 0.65) 0%, rgba(219, 39, 119, 0.3) 45%, transparent 72%);
  --orb-3: radial-gradient(circle, rgba(6, 182, 212, 0.7) 0%, rgba(14, 165, 233, 0.35) 45%, transparent 72%);
  --orb-4: radial-gradient(circle, rgba(249, 115, 22, 0.6) 0%, rgba(234, 88, 12, 0.28) 45%, transparent 72%);
  --orb-5: radial-gradient(circle, rgba(16, 185, 129, 0.55) 0%, rgba(5, 150, 105, 0.25) 45%, transparent 72%);

  /* Text & Typography */
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --text-inverse: #09070f;

  /* Shadows & Depth */
  --shadow-sm: 0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 12px 32px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 24px 64px rgba(0, 0, 0, 0.5);
  --shadow-glass: 0 16px 40px 0 rgba(0, 0, 0, 0.4), inset 0 1px 1px 0 rgba(255, 255, 255, 0.15);
  --shadow-glow: 0 10px 30px -5px rgba(255, 94, 58, 0.4);

  /* Filter blurs */
  --glass-blur: blur(24px) saturate(190%);
  --glass-blur-nav: blur(20px) saturate(180%);

  color-scheme: dark;
}

html[data-theme="light"] {
  /* Surface & Background */
  --bg-base: #f0f4fc;
  --bg-subtle: #e4eaf6;
  --bg-glass: rgba(255, 255, 255, 0.68);
  --bg-glass-hover: rgba(255, 255, 255, 0.85);
  --bg-glass-active: rgba(255, 255, 255, 0.95);
  --bg-glass-card: rgba(255, 255, 255, 0.62);
  --bg-glass-card-hover: rgba(255, 255, 255, 0.82);
  --bg-input: rgba(255, 255, 255, 0.85);
  --bg-modal: rgba(255, 255, 255, 0.94);
  
  /* Borders & Specular Light */
  --border-subtle: rgba(15, 23, 42, 0.08);
  --border-medium: rgba(15, 23, 42, 0.14);
  --border-glass: rgba(255, 255, 255, 0.7);
  --border-glass-highlight: rgba(255, 255, 255, 0.95);
  --border-hover: rgba(249, 115, 22, 0.6);
  --border-glow: rgba(249, 115, 22, 0.3);

  /* Brand Accents & Gradients */
  --primary: #ea580c;
  --primary-glow: #f97316;
  --primary-light: #ea580c;
  --primary-gradient: linear-gradient(135deg, #ea580c 0%, #f59e0b 100%);
  --primary-subtle: rgba(234, 88, 12, 0.12);
  --primary-subtle-hover: rgba(234, 88, 12, 0.2);

  /* Vivid Aurora Mesh & Orb Gradients (Light Mode) */
  --mesh-1: rgba(192, 132, 252, 0.38); /* Soft Lavender */
  --mesh-2: rgba(56, 189, 248, 0.38);  /* Sky Cyan */
  --mesh-3: rgba(251, 113, 133, 0.35);  /* Sunset Peach */
  --mesh-4: rgba(251, 146, 60, 0.32);   /* Coral Glow */
  --mesh-5: rgba(52, 211, 153, 0.3);   /* Mint Emerald */

  --orb-1: radial-gradient(circle, rgba(168, 85, 247, 0.55) 0%, rgba(192, 132, 252, 0.28) 45%, transparent 72%);
  --orb-2: radial-gradient(circle, rgba(244, 63, 94, 0.5) 0%, rgba(251, 113, 133, 0.25) 45%, transparent 72%);
  --orb-3: radial-gradient(circle, rgba(14, 165, 233, 0.55) 0%, rgba(56, 189, 248, 0.28) 45%, transparent 72%);
  --orb-4: radial-gradient(circle, rgba(249, 115, 22, 0.5) 0%, rgba(251, 146, 60, 0.25) 45%, transparent 72%);
  --orb-5: radial-gradient(circle, rgba(16, 185, 129, 0.45) 0%, rgba(52, 211, 153, 0.22) 45%, transparent 72%);

  /* Text & Typography */
  --text-primary: #0f172a;
  --text-secondary: #334155;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  /* Shadows & Depth */
  --shadow-sm: 0 4px 12px rgba(100, 116, 139, 0.08);
  --shadow-md: 0 12px 32px rgba(100, 116, 139, 0.12);
  --shadow-lg: 0 24px 64px rgba(100, 116, 139, 0.16);
  --shadow-glass: 0 16px 40px 0 rgba(100, 116, 139, 0.14), inset 0 1px 1px 0 rgba(255, 255, 255, 0.9);
  --shadow-glow: 0 10px 30px -5px rgba(234, 88, 12, 0.3);

  /* Filter blurs */
  --glass-blur: blur(26px) saturate(180%);
  --glass-blur-nav: blur(22px) saturate(180%);

  color-scheme: light;
}

:root {
  --font-sans: 'Plus Jakarta Sans', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-full: 9999px;

  --transition-fast: 0.15s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-normal: 0.25s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-slow: 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  --transition-theme: background 0.3s ease, color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

/* ==========================================================================
   Base & Reset
   ========================================================================== */

*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--bg-base);
  background-image: 
    radial-gradient(at 15% 15%, var(--mesh-1) 0px, transparent 55%),
    radial-gradient(at 85% 10%, var(--mesh-2) 0px, transparent 55%),
    radial-gradient(at 50% 60%, var(--mesh-3) 0px, transparent 65%),
    radial-gradient(at 10% 85%, var(--mesh-4) 0px, transparent 55%),
    radial-gradient(at 90% 90%, var(--mesh-5) 0px, transparent 55%);
  background-attachment: fixed;
  color: var(--text-primary);
  font-family: var(--font-sans);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  position: relative;
  transition: var(--transition-theme);
}

::selection {
  background: var(--primary);
  color: #ffffff;
}

/* ==========================================================================
   DYNAMIC COLORFUL AURORA BACKGROUND
   ========================================================================== */

.ambient-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.ambient-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.95;
  mix-blend-mode: screen;
  will-change: transform;
}

html[data-theme="light"] .ambient-orb {
  mix-blend-mode: multiply;
  opacity: 0.85;
}

.orb-1 {
  width: 600px;
  height: 600px;
  background: var(--orb-1);
  top: -100px;
  left: 15%;
  animation: orbFloat1 22s ease-in-out infinite alternate;
}

.orb-2 {
  width: 650px;
  height: 650px;
  background: var(--orb-2);
  top: 15%;
  right: -80px;
  animation: orbFloat2 26s ease-in-out infinite alternate;
}

.orb-3 {
  width: 550px;
  height: 550px;
  background: var(--orb-3);
  bottom: 10%;
  left: -60px;
  animation: orbFloat3 24s ease-in-out infinite alternate;
}

.orb-4 {
  width: 580px;
  height: 580px;
  background: var(--orb-4);
  bottom: -120px;
  right: 12%;
  animation: orbFloat4 28s ease-in-out infinite alternate;
}

.orb-5 {
  width: 480px;
  height: 480px;
  background: var(--orb-5);
  top: 42%;
  left: 42%;
  animation: orbFloat5 20s ease-in-out infinite alternate;
}

@keyframes orbFloat1 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(80px, 60px, 0) scale(1.12); }
  100% { transform: translate3d(-60px, 90px, 0) scale(0.95); }
}

@keyframes orbFloat2 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-90px, -70px, 0) scale(1.15); }
  100% { transform: translate3d(50px, 80px, 0) scale(0.92); }
}

@keyframes orbFloat3 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(70px, -80px, 0) scale(1.08); }
  100% { transform: translate3d(-50px, 60px, 0) scale(1.18); }
}

@keyframes orbFloat4 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-70px, 50px, 0) scale(1.1); }
  100% { transform: translate3d(60px, -90px, 0) scale(0.9); }
}

@keyframes orbFloat5 {
  0% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(-80px, 90px, 0) scale(1.15); }
  100% { transform: translate3d(90px, -60px, 0) scale(0.88); }
}

/* ==========================================================================
   FLOATING GLASS HEADER & NAVIGATION
   ========================================================================== */

.site-header {
  position: sticky;
  top: 14px;
  z-index: 1000;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur-nav);
  -webkit-backdrop-filter: var(--glass-blur-nav);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass);
  border-radius: var(--radius-full);
  padding: 8px 14px 8px 20px;
  transition: var(--transition-theme);
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.brand-icon {
  width: 32px;
  height: 32px;
  background: var(--primary-gradient);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #ffffff;
  box-shadow: 0 4px 12px rgba(255, 94, 58, 0.4);
}

.brand span {
  color: var(--primary);
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-glass-hover);
}

.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-glass-active);
  border: 1px solid var(--border-glass-highlight);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}

/* Theme Toggle Button */
.theme-toggle {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border-glass);
  background: var(--bg-glass);
  color: var(--text-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-fast);
}

.theme-toggle:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-hover);
  transform: scale(1.05);
}

.theme-toggle svg {
  transition: transform var(--transition-normal);
}

.theme-toggle:active svg {
  transform: rotate(45deg);
}

.icon-sun { display: none; }
.icon-moon { display: block; }

html[data-theme="light"] .icon-sun { display: block; }
html[data-theme="light"] .icon-moon { display: none; }

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text-primary);
  padding: 6px;
  cursor: pointer;
  border-radius: 8px;
}

/* ==========================================================================
   HERO SECTION & FEATURE GRID
   ========================================================================== */

.hero {
  max-width: 900px;
  margin: 40px auto 30px;
  padding: 0 20px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.badge-privacy {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass);
  padding: 6px 16px;
  border-radius: var(--radius-full);
  font-size: 13px;
  font-weight: 600;
  color: var(--primary-light);
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
  animation: pulseGlow 2s infinite;
}

@keyframes pulseGlow {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.85); }
}

.hero h1 {
  font-size: clamp(32px, 5.5vw, 56px);
  font-weight: 800;
  line-height: 1.12;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.hero h1 em {
  font-style: normal;
  background: var(--primary-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

.features-grid {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  max-width: 1000px;
  margin: 0 auto 40px;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.feature-pill {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-xl);
  padding: 12px 20px;
  box-shadow: var(--shadow-sm);
  text-align: left;
  transition: var(--transition-fast);
}

.feature-pill:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-medium);
}

.feature-pill .f-icon {
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
}

.feature-pill h4 {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 2px;
}

.feature-pill p {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ==========================================================================
   STUDIO TABS (IMAGE & PDF STUDIOS)
   ========================================================================== */

.tab-nav-wrapper {
  max-width: 900px;
  margin: 0 auto 30px;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.tab-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass);
  border-radius: var(--radius-xl);
  padding: 6px;
  gap: 6px;
}

.tab-btn {
  flex: 1 1 auto;
  border: none;
  background: transparent;
  color: var(--text-secondary);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  padding: 10px 20px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  white-space: nowrap;
  text-decoration: none;
}

.tab-btn:hover {
  color: var(--text-primary);
  background: var(--bg-glass-hover);
}

.tab-btn.active {
  color: var(--text-primary);
  background: var(--bg-glass-active);
  border: 1px solid var(--border-glass-highlight);
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.12);
}

/* ==========================================================================
   STUDIO CONTAINER & GLASS CARDS
   ========================================================================== */

.studio-container {
  max-width: 1200px;
  margin: 0 auto 80px;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.studio-card {
  display: none;
  background: var(--bg-glass-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass);
  border-radius: var(--radius-xl);
  padding: 36px;
  transition: var(--transition-theme);
}

.studio-card.active {
  display: block;
}

.studio-header {
  margin-bottom: 28px;
}

.studio-header h2 {
  font-size: 26px;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.studio-header p {
  color: var(--text-secondary);
  font-size: 15px;
}

/* ==========================================================================
   DROPZONE
   ========================================================================== */

.dropzone {
  border: 2px dashed var(--border-medium);
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border-radius: var(--radius-lg);
  padding: 50px 30px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
}

.dropzone:hover, .dropzone.drag {
  border-color: var(--primary);
  background: var(--primary-subtle);
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(255, 94, 58, 0.15);
}

.dropzone input[type="file"] {
  display: none;
}

.dropzone-icon {
  width: 64px;
  height: 64px;
  background: var(--primary-subtle);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  margin: 0 auto 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  box-shadow: 0 6px 18px rgba(255, 94, 58, 0.2);
}

.dropzone h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.dropzone p {
  color: var(--text-secondary);
  font-size: 14px;
  margin-bottom: 14px;
}

.formats-badge {
  display: inline-block;
  font-size: 12px;
  font-family: var(--font-mono);
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-subtle);
  border: 1px solid var(--border-subtle);
  padding: 4px 12px;
  border-radius: var(--radius-full);
}

/* ==========================================================================
   WORKSPACE GRID (CANVAS & CONTROLS)
   ========================================================================== */

.workspace-grid {
  display: none;
  grid-template-columns: 1fr 380px;
  gap: 28px;
  margin-top: 28px;
}

.workspace-grid.active {
  display: grid;
}

.canvas-viewport {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 480px;
  max-height: 700px;
  overflow: hidden;
  position: relative;
  box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.3);
}

.canvas-viewport canvas,
.canvas-viewport img {
  max-width: 100%;
  max-height: 660px;
  object-fit: contain;
  display: block;
  background-color: var(--bg-subtle);
  background-image: 
    linear-gradient(45deg, var(--bg-glass-card) 25%, transparent 25%, transparent 75%, var(--bg-glass-card) 75%, var(--bg-glass-card)), 
    linear-gradient(45deg, var(--bg-glass-card) 25%, transparent 25%, transparent 75%, var(--bg-glass-card) 75%, var(--bg-glass-card));
  background-size: 20px 20px;
  background-position: 0 0, 10px 10px;
  border-radius: 4px;
}

/* Split Comparison Slider */
.compare-container {
  position: relative;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  user-select: none;
  touch-action: none;
  overflow: hidden;
}

.compare-after-wrap {
  position: absolute;
  top: 0;
  left: 0;
  bottom: 0;
  width: 50%;
  overflow: hidden;
  border-right: 2px solid #ffffff;
  box-shadow: 2px 0 10px rgba(0,0,0,0.5);
  pointer-events: none;
}

.compare-handle {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 4px;
  transform: translateX(-50%);
  cursor: ew-resize;
  z-index: 10;
}

.compare-handle::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #ffffff;
  border: 2px solid var(--primary);
  box-shadow: 0 4px 14px rgba(0,0,0,0.4);
  background-image: url("data:image/svg+xml,%3Csvg width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%23ff7a1a' stroke-width='2.5' xmlns='http://www.w3.org/2000/svg'%3E%3Cpolyline points='8 17 3 12 8 7'/%3E%3Cpolyline points='16 17 21 12 16 7'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
}

.tag-label {
  position: absolute;
  top: 14px;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  color: #ffffff;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  pointer-events: none;
  z-index: 5;
}
.tag-left { left: 14px; }
.tag-right { right: 14px; }

/* Control Panel */
.control-panel {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-lg);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-sm);
}

.panel-section-title {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  margin-top: 6px;
  margin-bottom: 2px;
}

.stat-box {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 13px;
}

.stat-item {
  color: var(--text-secondary);
}

.stat-item b {
  display: block;
  font-family: var(--font-mono);
  color: var(--text-primary);
  font-size: 15px;
  font-weight: 700;
  margin-top: 2px;
}

.stat-item.to b {
  color: var(--primary);
}

.stat-arrow {
  color: var(--text-muted);
  font-size: 16px;
}

/* Fields & Inputs */
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.field label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
}

.field label .val {
  font-family: var(--font-mono);
  color: var(--primary);
  font-weight: 700;
}

select, input[type="text"], input[type="number"] {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 10px 14px;
  outline: none;
  transition: all var(--transition-fast);
}

select:focus, input[type="text"]:focus, input[type="number"]:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-subtle);
}

/* Range Sliders */
input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 999px;
  background: var(--border-medium);
  outline: none;
  cursor: pointer;
}

input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary-glow);
  cursor: pointer;
  transition: transform var(--transition-fast);
}

input[type="range"]::-webkit-slider-thumb:hover {
  transform: scale(1.2);
}

/* Segmented Chips */
.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.chip {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 12px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.chip:hover {
  color: var(--text-primary);
  border-color: var(--border-medium);
}

.chip.on, .chip.active {
  color: #ffffff;
  background: var(--primary-gradient);
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(255, 94, 58, 0.35);
}

/* Color Swatches (Background Replacer) */
.swatches {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
}

.swatch {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  position: relative;
}

.swatch.on, .swatch.active {
  border-color: var(--primary);
  transform: scale(1.15);
  box-shadow: 0 0 12px var(--primary);
}

/* ==========================================================================
   BUTTONS
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 24px;
  border-radius: var(--radius-full);
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
  border: none;
  transition: all var(--transition-fast);
}

.btn-primary {
  background: var(--primary-gradient);
  color: #ffffff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(255, 94, 58, 0.5);
}

.btn-ghost {
  background: var(--bg-glass);
  color: var(--text-secondary);
  border: 1px solid var(--border-glass);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: var(--bg-glass-hover);
  border-color: var(--border-medium);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-row {
  display: flex;
  gap: 10px;
}

/* ==========================================================================
   FILE LIST ITEMS (PDF TOOLS & BATCHES)
   ========================================================================== */

.filelist {
  display: none;
  flex-direction: column;
  gap: 8px;
  margin-top: 20px;
}

.filelist.on, .filelist.active {
  display: flex;
}

.fitem {
  display: flex;
  align-items: center;
  gap: 12px;
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-md);
  padding: 10px 16px;
  transition: all var(--transition-fast);
}

.fitem:hover {
  background: var(--bg-glass-hover);
  border-color: var(--border-medium);
}

.fitem .thumb {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--bg-input);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  overflow: hidden;
}

.fitem .fname {
  flex: 1;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.fitem .fsize {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

.fitem .mv {
  display: flex;
  gap: 4px;
}

.fitem button {
  background: var(--bg-input);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  width: 28px;
  height: 28px;
  border-radius: 6px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
}

.fitem button:hover:not(:disabled) {
  color: var(--primary);
  border-color: var(--primary);
}

/* ==========================================================================
   PROGRESS BARS & RESULTS
   ========================================================================== */

.prog {
  display: none;
  margin-top: 18px;
}

.prog.on, .prog.active {
  display: block;
}

.prog .bar {
  height: 6px;
  background: var(--border-medium);
  border-radius: 999px;
  overflow: hidden;
}

.prog .bar i {
  display: block;
  height: 100%;
  width: 0%;
  background: var(--primary-gradient);
  box-shadow: 0 0 10px var(--primary);
  transition: width 0.2s ease;
}

.prog .txt {
  font-size: 12px;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  margin-top: 6px;
  text-align: right;
}

.result {
  display: none;
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 16px 20px;
  margin-top: 18px;
}

.result.on, .result.active {
  display: block;
}

.result .h {
  font-size: 15px;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 4px;
}

.result .d {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ==========================================================================
   GUIDES / BLOG GRID & CARDS
   ========================================================================== */

.guides-section {
  max-width: 1200px;
  margin: 60px auto;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.section-header {
  margin-bottom: 30px;
}

.section-header h3 {
  font-size: 24px;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.section-header p {
  color: var(--text-secondary);
  font-size: 15px;
}

.guides-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 24px;
}

.guide-card {
  background: var(--bg-glass-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass);
  border-radius: var(--radius-lg);
  padding: 28px;
  text-decoration: none;
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.guide-card:hover {
  transform: translateY(-4px);
  background: var(--bg-glass-card-hover);
  border-color: var(--border-hover);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.25);
}

.card-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.guide-card h4 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.35;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.guide-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.6;
  margin-bottom: 20px;
  flex: 1;
}

.guide-card .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 12px;
  color: var(--text-muted);
  border-top: 1px solid var(--border-subtle);
  padding-top: 14px;
}

/* ==========================================================================
   ARTICLE PAGES / INFORMATION PAGES
   ========================================================================== */

.article-wrap {
  max-width: 780px;
  margin: 40px auto 80px;
  padding: 0 20px;
  position: relative;
  z-index: 1;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 24px;
  transition: color var(--transition-fast);
}

.back-link:hover {
  color: var(--primary);
}

.article-header {
  margin-bottom: 36px;
}

.article-eyebrow {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 12px;
}

.article-header h1 {
  font-size: clamp(28px, 5vw, 42px);
  font-weight: 800;
  line-height: 1.2;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.article-meta {
  color: var(--text-muted);
  font-size: 14px;
  display: flex;
  gap: 8px;
}

.article-content {
  background: var(--bg-glass-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-glass);
  box-shadow: var(--shadow-glass);
  border-radius: var(--radius-xl);
  padding: 40px;
}

.article-content h2 {
  font-size: 22px;
  font-weight: 800;
  color: var(--text-primary);
  margin: 36px 0 14px;
}

.article-content h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--primary);
  margin: 24px 0 10px;
}

.article-content p, .article-content li {
  color: var(--text-secondary);
  font-size: 16px;
  line-height: 1.8;
}

.article-content p {
  margin-bottom: 18px;
}

.article-content ul, .article-content ol {
  padding-left: 24px;
  margin-bottom: 20px;
}

.article-content li {
  margin-bottom: 10px;
}

.article-content b, .article-content strong {
  color: var(--text-primary);
}

.callout-box {
  background: var(--bg-glass);
  backdrop-filter: blur(16px);
  border: 1px solid var(--border-glass);
  border-left: 4px solid var(--primary);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
  padding: 20px 24px;
  margin: 28px 0;
}

.callout-box p {
  margin: 0;
  font-size: 15px;
}

.table-wrap {
  overflow-x: auto;
  margin: 26px 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-glass);
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
  background: var(--bg-glass);
}

th, td {
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border-subtle);
}

th {
  background: var(--bg-subtle);
  color: var(--primary);
  font-weight: 700;
}

td {
  color: var(--text-secondary);
}

.article-cta {
  display: inline-block;
  background: var(--primary-gradient);
  color: #ffffff !important;
  font-weight: 700;
  padding: 14px 28px;
  border-radius: var(--radius-full);
  text-decoration: none;
  margin: 18px 0 28px;
  box-shadow: var(--shadow-glow);
  transition: transform var(--transition-fast);
}

.article-cta:hover {
  transform: translateY(-2px);
}

/* ==========================================================================
   FOOTER
   ========================================================================== */

.site-footer {
  border-top: 1px solid var(--border-glass);
  background: var(--bg-glass);
  backdrop-filter: var(--glass-blur);
  padding: 40px 20px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.footer-nav {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 16px;
  font-size: 14px;
}

.footer-nav a {
  color: var(--text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer-nav .dot {
  color: var(--border-medium);
}

.footer-bottom {
  font-size: 13px;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}

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

/* ==========================================================================
   BUSY OVERLAY & SPINNER
   ========================================================================== */

.busy-overlay {
  position: absolute;
  inset: 0;
  background: var(--bg-modal);
  backdrop-filter: blur(10px);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  z-index: 20;
}

.busy-overlay.on, .busy-overlay.active {
  display: flex;
}

.spinner-ring {
  width: 40px;
  height: 40px;
  border: 3px solid var(--border-medium);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spinRing 0.8s linear infinite;
}

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

/* ==========================================================================
   RESPONSIVE MEDIA QUERIES
   ========================================================================== */

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

@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 20px;
    right: 20px;
    background: var(--bg-glass);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-lg);
    padding: 16px;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
  }

  .nav-links.open {
    display: flex;
  }

  .mobile-toggle {
    display: block;
  }

  .studio-card {
    padding: 24px 18px;
  }

  .hero h1 {
    font-size: 30px;
  }

  .article-content {
    padding: 24px 18px;
  }
}