/* ========================================================
   KNAPSACK CREATIVE EDITORIAL LIGHT DESIGN SYSTEM
   FOR SHABBIR AHMED & AI TOOLKIT PRO
   ======================================================== */
:root {
  --bg-primary: #ffffff;
  --bg-secondary: #fbfaf8;
  --bg-tertiary: #f4f2ee;
  --bg-card: #ffffff;
  
  --text-heading: #1e2d2f;      /* Deep forest-charcoal */
  --text-body: #334155;         /* Crisp readable slate */
  --text-muted: #64748b;        /* Muted supporting text */
  
  --accent-orange: #df5e12;     /* Knapsack signature terracotta orange */
  --accent-orange-hover: #c44f0c;
  --accent-teal: #1e4d58;       /* Deep editorial teal */
  --accent-teal-light: #e6f0f2;
  --accent-green: #10b981;
  
  --border-color: #e5e2d8;
  --border-light: #f1efe8;
  
  --card-shadow: 0 8px 30px -4px rgba(30, 45, 47, 0.07), 0 0 0 1px rgba(30, 45, 47, 0.05);
  --card-shadow-hover: 0 18px 40px -8px rgba(223, 94, 18, 0.16), 0 0 0 1px rgba(223, 94, 18, 0.25);
  
  --font-serif: "Charter", "Georgia", "Cambria", "Times New Roman", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Inter", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg-primary);
  color: var(--text-body);
  line-height: 1.65;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* Headings with Editorial Serif Elegance */
h1, h2, h3, h4 {
  font-family: var(--font-serif);
  color: var(--text-heading);
  line-height: 1.25;
  letter-spacing: -0.015em;
  font-weight: 700;
}

/* Container */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Header & Nav */
header {
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-color);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 2px 15px rgba(0, 0, 0, 0.03);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 70px;
  height: auto;
  padding: 8px 0;
  gap: 12px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.02em;
  font-family: var(--font-sans);
  color: var(--text-heading);
  white-space: nowrap;
  flex-shrink: 0;
}

.brand img {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 2px solid var(--accent-orange);
  object-fit: cover;
  flex-shrink: 0;
}

.brand-text span {
  color: var(--accent-orange);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: #475569;
  flex-wrap: nowrap;
}

.nav-links a:hover, .nav-links a.active {
  color: var(--accent-orange);
}

/* Knapsack Style Buttons */
.btn-cta {
  background-color: var(--accent-orange);
  color: #ffffff;
  font-weight: 700;
  padding: 10px 22px;
  border-radius: 8px;
  font-size: 0.95rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  border: none;
  cursor: pointer;
  box-shadow: 0 4px 14px rgba(223, 94, 18, 0.28);
}

.btn-cta:hover {
  background-color: var(--accent-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(223, 94, 18, 0.4);
}

.btn-outline {
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-heading);
  font-weight: 600;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s ease;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.04);
}

.btn-outline:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(223, 94, 18, 0.15);
}

.btn-whatsapp {
  background-color: #25D366;
  color: #ffffff;
  font-weight: 700;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all 0.2s;
  box-shadow: 0 3px 12px rgba(37, 211, 102, 0.25);
}

.btn-whatsapp:hover {
  background-color: #1eb956;
  transform: translateY(-2px);
  box-shadow: 0 5px 16px rgba(37, 211, 102, 0.35);
}

/* Badge Pill */
.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background-color: var(--accent-teal-light);
  border: 1px solid rgba(30, 77, 88, 0.2);
  color: var(--accent-teal);
  padding: 6px 14px;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-family: var(--font-sans);
}

/* Hero Section */
.hero-wrapper {
  position: relative;
  background-color: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 5rem 0 4.5rem;
  overflow: hidden;
}



.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  pointer-events: none;
}

.hero-content a,
.hero-content button,
.hero-content input {
  pointer-events: auto;
}

.hero-content h1 {
  font-size: 3.4rem;
  font-weight: 800;
  color: var(--text-heading);
  margin: 1.25rem 0;
  letter-spacing: -0.025em;
}

.hero-content h1 span {
  color: var(--accent-orange);
}

.hero-content p {
  font-size: 1.25rem;
  color: #475569;
  line-height: 1.65;
  margin-bottom: 2.25rem;
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* Live Stats Strip */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(170px, 1fr));
  gap: 1.25rem;
  max-width: 950px;
  margin: 0 auto;
}

.stat-box {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 1.5rem;
  text-align: center;
  box-shadow: var(--card-shadow);
  transition: all 0.2s;
}

.stat-box:hover {
  transform: translateY(-3px);
  border-color: var(--accent-orange);
  box-shadow: 0 12px 24px -5px rgba(223, 94, 18, 0.15);
}

.stat-number {
  font-size: 2.4rem;
  font-weight: 800;
  color: var(--accent-teal);
  font-family: var(--font-serif);
  line-height: 1.1;
}

.stat-label {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-top: 6px;
  font-weight: 700;
}

/* Section Title */
.section-title {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 2.25rem;
  border-bottom: 2px solid var(--border-color);
  padding-bottom: 1.25rem;
}

.section-title h2 {
  font-size: 2.25rem;
  color: var(--text-heading);
}

.section-title p {
  color: #64748b;
  font-size: 1.05rem;
  margin-top: 4px;
}

/* Cards & Grid */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 2rem;
  margin-bottom: 3.5rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 14px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--card-shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(223, 94, 18, 0.4);
  box-shadow: var(--card-shadow-hover);
}

.card-img-wrap {
  position: relative;
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--bg-tertiary);
  overflow: hidden;
}

.card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s;
}

.card:hover .card-img-wrap img {
  transform: scale(1.03);
}

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background-color: #ffffff;
  color: var(--accent-teal);
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 6px;
  text-transform: uppercase;
  box-shadow: 0 2px 6px rgba(0,0,0,0.1);
  border: 1px solid var(--border-color);
}

.card-duration {
  position: absolute;
  bottom: 12px;
  right: 12px;
  background-color: rgba(30, 45, 47, 0.9);
  color: #ffffff;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 4px;
}

.card-body {
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card-title {
  font-size: 1.35rem;
  line-height: 1.3;
  margin-bottom: 0.75rem;
  color: var(--text-heading);
}

.card-desc {
  font-size: 0.95rem;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Lead Magnet Banner */
.lead-banner {
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-left: 5px solid var(--accent-orange);
  border-radius: 12px;
  padding: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.75rem;
  margin: 3.5rem 0;
  box-shadow: var(--card-shadow);
}

.lead-text h3 {
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.lead-text p {
  color: #475569;
  font-size: 1rem;
}

.lead-actions {
  display: flex;
  gap: 12px;
  flex-shrink: 0;
}

/* Vault Table */
.vault-section {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.5rem;
  margin-bottom: 4.5rem;
  box-shadow: var(--card-shadow);
}

.tool-table {
  width: 100%;
  border-collapse: collapse;
}

.tool-table th {
  text-align: left;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  padding: 14px 18px;
  border-bottom: 2px solid var(--border-color);
}

.tool-table td {
  padding: 18px;
  border-bottom: 1px solid var(--border-light);
  font-size: 0.95rem;
  color: #334155;
  vertical-align: middle;
}

.tool-table tr:hover {
  background-color: var(--bg-secondary);
}

.tool-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 4px;
  background-color: var(--accent-teal-light);
  color: var(--accent-teal);
}

.tool-tag.free {
  background-color: #ecfdf5;
  color: #047857;
  border: 1px solid #a7f3d0;
}

/* AdSense Unit Box */
.ad-slot-wrapper {
  margin: 2.5rem auto;
  text-align: center;
  max-width: 100%;
  clear: both;
}

.ad-label {
  font-size: 0.68rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 6px;
  font-weight: 600;
  text-align: center;
}

.ad-banner-box {
  background-color: var(--bg-secondary);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 10px;
  color: var(--text-muted);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  box-sizing: border-box;
  min-height: 100px;
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.03);
}

.ad-banner-box.dark-ad {
  background-color: rgba(4, 36, 38, 0.6);
  border: 1px solid rgba(12, 150, 156, 0.25);
}

ins.adsbygoogle {
  display: block !important;
  width: 100% !important;
  min-width: 280px;
  min-height: 90px;
  margin: 0 auto;
}

/* Code Snippet Box */
.code-block {
  background-color: #1e293b;
  border: 1px solid #334155;
  border-radius: 10px;
  margin: 1.5rem 0;
  overflow: hidden;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background-color: #0f172a;
  padding: 10px 16px;
  font-family: monospace;
  font-size: 0.8rem;
  color: #94a3b8;
  border-bottom: 1px solid #334155;
}

.btn-copy {
  background-color: rgba(255, 255, 255, 0.1);
  border: 1px solid #475569;
  color: #e2e8f0;
  padding: 4px 12px;
  border-radius: 4px;
  font-size: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-copy:hover {
  background-color: var(--accent-orange);
  border-color: var(--accent-orange);
  color: #fff;
}

pre code {
  display: block;
  padding: 1.25rem 1.5rem;
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  font-size: 0.9rem;
  color: #f8fafc;
  overflow-x: auto;
  line-height: 1.6;
}

/* Content Container Boxes */
.content-box {
  background-color: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 16px;
  padding: 2.75rem;
  box-shadow: var(--card-shadow);
  line-height: 1.8;
}

/* Footer */
footer {
  margin-top: auto;
  background-color: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
  padding: 4rem 0 2rem;
  font-size: 0.95rem;
  color: #64748b;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 2.5rem;
  margin-bottom: 2.5rem;
}

.footer-col h4 {
  color: var(--text-heading);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}

.footer-col ul {
  list-style: none;
}

.footer-col li {
  margin-bottom: 0.65rem;
}

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

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding-top: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 0.85rem;
}

/* Responsive */
@media (max-width: 950px) {
  .hero-content h1 {
    font-size: 2.6rem;
  }
  .card-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .lead-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 640px) {
  .nav-links {
    display: none;
  }
  .hero-content h1 {
    font-size: 2.1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
}

/* ========================================================
   MOBILE HAMBURGER MENU & OFF-CANVAS DRAWER
   ======================================================== */
.mobile-menu-btn {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 8px;
  flex-direction: column;
  gap: 5px;
  z-index: 1001;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--text-heading);
  border-radius: 2px;
  transition: all 0.25s ease;
}
@media (max-width: 850px) {
  .mobile-menu-btn {
    display: flex !important;
  }
  .nav-bar > div > .btn-cta,
  .nav-bar > div > .btn-outline {
    display: none !important;
  }
}
.mobile-drawer {
  position: fixed;
  top: 0;
  right: -320px;
  width: 280px;
  height: 100vh;
  background: #ffffff;
  box-shadow: -10px 0 30px rgba(0,0,0,0.25);
  z-index: 100000;
  display: flex;
  flex-direction: column;
  padding: 24px;
  transition: right 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
.mobile-drawer.open {
  right: 0;
}
.mobile-drawer-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid #e2e8f0;
}
.mobile-drawer-close {
  background: #f1f5f9;
  border: none;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  font-size: 16px;
  cursor: pointer;
  color: #475569;
}
.mobile-drawer-links {
  display: flex;
  flex-direction: column;
  gap: 16px;
  flex: 1;
  overflow-y: auto;
}
.mobile-drawer-links a {
  color: #1e293b;
  font-size: 1.05rem;
  font-weight: 600;
  text-decoration: none;
  padding: 6px 0;
  transition: color 0.2s;
}
.mobile-drawer-links a:hover {
  color: var(--accent-orange);
}
.mobile-drawer-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.5);
  z-index: 99999;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.mobile-drawer-backdrop.open {
  opacity: 1;
  pointer-events: auto;
}

/* ========================================================
   ANTHROPIC CLAUDE 3.5 & OPUS AI STUDIO STYLING
   ======================================================== */
.claude-studio-section {
  position: relative;
}

.claude-studio-card {
  background: #ffffff;
  border: 1px solid var(--border-color);
  border-radius: 18px;
  box-shadow: 0 10px 35px -5px rgba(30, 45, 47, 0.08), 0 0 0 1px rgba(30, 45, 47, 0.04);
  overflow: hidden;
}

.studio-header-bar {
  background: var(--bg-secondary);
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
}

.model-selector-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.selector-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-heading);
}

.studio-select {
  padding: 8px 14px;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background: #ffffff;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text-heading);
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.studio-select:focus {
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px rgba(223, 94, 18, 0.12);
}

.token-limit-group {
  display: flex;
  gap: 8px;
  align-items: center;
}

.token-badge {
  font-size: 0.75rem;
  background: #f1f5f9;
  color: #475569;
  padding: 4px 10px;
  border-radius: 6px;
  font-weight: 600;
}

.token-badge code {
  color: var(--accent-orange);
  font-weight: 700;
}

.studio-presets {
  padding: 0.85rem 1.5rem;
  border-bottom: 1px solid var(--border-light);
  background: #faf9f6;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.presets-label {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.preset-pills {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.preset-pill {
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 13px;
  border-radius: 20px;
  background: #ffffff;
  border: 1px solid var(--border-color);
  color: var(--text-body);
  cursor: pointer;
  transition: all 0.2s ease;
}

.preset-pill:hover {
  border-color: var(--accent-orange);
  color: var(--accent-orange);
  background: #fff8f5;
  transform: translateY(-1px);
}

.preset-pill.active {
  background: var(--accent-teal);
  border-color: var(--accent-teal);
  color: #ffffff;
}

.studio-workspace {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 480px;
}

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

.studio-input-box {
  padding: 1.5rem;
  border-right: 1px solid var(--border-color);
  display: flex;
  flex-direction: column;
}

@media (max-width: 900px) {
  .studio-input-box {
    border-right: none;
    border-bottom: 1px solid var(--border-color);
  }
}

.input-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--text-heading);
}

#claude-prompt-input {
  width: 100%;
  flex-grow: 1;
  min-height: 220px;
  padding: 14px;
  border-radius: 10px;
  border: 1px solid var(--border-color);
  background: var(--bg-secondary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  line-height: 1.6;
  color: var(--text-body);
  resize: vertical;
  outline: none;
  transition: all 0.2s ease;
}

#claude-prompt-input:focus {
  background: #ffffff;
  border-color: var(--accent-orange);
  box-shadow: 0 0 0 3px rgba(223, 94, 18, 0.1);
}

.input-actions {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 1.25rem;
  flex-wrap: wrap;
  gap: 10px;
}

.studio-output-box {
  display: flex;
  flex-direction: column;
  background: #ffffff;
}

.output-header {
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--border-color);
  background: #fdfdfd;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.output-actions {
  display: flex;
  gap: 6px;
  align-items: center;
}

.output-content-area {
  padding: 1.5rem;
  flex-grow: 1;
  overflow-y: auto;
  max-height: 520px;
  font-size: 0.93rem;
  line-height: 1.7;
  color: var(--text-body);
}

.placeholder-state {
  height: 100%;
  min-height: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 2rem;
}

.output-content-area pre {
  background: #1e293b;
  color: #f8fafc;
  padding: 14px;
  border-radius: 8px;
  overflow-x: auto;
  margin: 1rem 0;
  font-family: "JetBrains Mono", Consolas, monospace;
  font-size: 0.85rem;
}

.output-content-area h3, .output-content-area h4 {
  margin: 1.25rem 0 0.5rem;
  color: var(--text-heading);
}

.output-content-area ul, .output-content-area ol {
  padding-left: 1.25rem;
  margin-bottom: 1rem;
}

.output-content-area li {
  margin-bottom: 0.35rem;
}

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

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.9); }
}


/* ========================================================
   CLEAN & ELEGANT ANIMATIONS & LAYOUT
   ======================================================== */
.reveal, .reveal-3d {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.4s ease, transform 0.4s ease;
  will-change: opacity, transform;
}

.reveal.revealed, .reveal-3d.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* Audio Spectrum Visualizer */
.audio-spectrum-container {
  display: flex;
  align-items: flex-end;
  gap: 3px;
  height: 38px;
  padding: 6px 12px;
  background: rgba(0, 0, 0, 0.55);
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(8px);
}

.spectrum-bar {
  flex: 1;
  width: 4px;
  min-height: 4px;
  background: linear-gradient(to top, #df5e12, #06b6d4);
  border-radius: 2px;
  transform-origin: bottom;
  animation: spectrum-dance 1.2s ease-in-out infinite alternate;
}

@keyframes spectrum-dance {
  0% { height: 15%; opacity: 0.5; }
  50% { height: 95%; opacity: 1; filter: brightness(1.3); }
  100% { height: 35%; opacity: 0.7; }
}

/* Clean Hero Section */
.hero-wrapper {
  position: relative;
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  border-bottom: 1px solid var(--border-color);
  padding: 4.5rem 0 4rem;
}