/* ==========================================================================
   Vibe Coders Hub — Production CSS Architecture
   Theme: Dark-first, Electric Cyan / Indigo / Purple Cyber Glow
   ========================================================================== */

/* --------------------------------------------------------------------------
   1. Design Tokens / Custom Properties
   -------------------------------------------------------------------------- */
:root {
  /* Color Palette */
  --bg-dark: #090b10;
  --bg-card: rgba(18, 22, 34, 0.75);
  --bg-card-hover: rgba(28, 34, 52, 0.85);
  --bg-card-solid: #121622;
  --bg-header: rgba(9, 11, 16, 0.85);

  --text-primary: #f3f4f6;
  --text-secondary: #9ca3af;
  --text-muted: #6b7280;

  --accent-cyan: #00f2fe;
  --accent-blue: #3b82f6;
  --accent-purple: #8b5cf6;
  --accent-pink: #ec4899;

  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-active: rgba(0, 242, 254, 0.4);
  --border-purple: rgba(139, 92, 246, 0.4);

  /* Typography */
  --font-heading: 'Space Grotesk', system-ui, -apple-system, sans-serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Spacing & Layout */
  --container-max: 1240px;
  --header-height: 80px;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-full: 9999px;

  /* Shadows & Glows */
  --glow-cyan: 0 0 25px rgba(0, 242, 254, 0.25);
  --glow-purple: 0 0 25px rgba(139, 92, 246, 0.25);
  --glow-subtle: 0 10px 30px -10px rgba(0, 0, 0, 0.5);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-smooth: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

/* --------------------------------------------------------------------------
   2. Reset & Core Base Styles
   -------------------------------------------------------------------------- */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  min-height: 100vh;
  position: relative;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-fast);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* Accessibility Focus States */
:focus-visible {
  outline: 2px solid var(--accent-cyan);
  outline-offset: 4px;
}

/* Typography Helpers */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.text-center { text-align: center; }
.mt-2 { margin-top: 0.5rem; }

.gradient-text {
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.gradient-text-alt {
  background: linear-gradient(135deg, #a855f7, var(--accent-pink));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.white-text {
  color: #ffffff;
}

.accent-text {
  color: var(--accent-cyan);
}

/* Layout Container */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* Background Visual Effects */
.bg-grid-overlay {
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
  z-index: -2;
}

.glow-sphere {
  position: fixed;
  width: 500px;
  height: 500px;
  border-radius: 50%;
  filter: blur(140px);
  opacity: 0.15;
  pointer-events: none;
  z-index: -1;
}

.glow-sphere-1 {
  top: -100px;
  right: -100px;
  background: radial-gradient(circle, var(--accent-cyan), var(--accent-purple));
}

.glow-sphere-2 {
  bottom: 10%;
  left: -150px;
  background: radial-gradient(circle, var(--accent-purple), var(--accent-pink));
}

/* --------------------------------------------------------------------------
   3. Buttons & Badges
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent-cyan), #2563eb);
  color: #05070a;
  box-shadow: 0 4px 20px rgba(0, 242, 254, 0.3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 28px rgba(0, 242, 254, 0.5);
  color: #000;
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-primary);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 0.9rem 2rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
}

.badge-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 1rem;
  background: rgba(0, 242, 254, 0.08);
  border: 1px solid rgba(0, 242, 254, 0.2);
  border-radius: var(--radius-full);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  font-weight: 500;
  margin-bottom: 1.25rem;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background-color: var(--accent-cyan);
  border-radius: 50%;
  box-shadow: 0 0 10px var(--accent-cyan);
}

.badge-tag {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  background: rgba(139, 92, 246, 0.15);
  border: 1px solid var(--border-purple);
  color: #c084fc;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* --------------------------------------------------------------------------
   4. Header & Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-height);
  z-index: 1000;
  transition: background-color var(--transition-fast), backdrop-filter var(--transition-fast), border-color var(--transition-fast);
  border-bottom: 1px solid transparent;
}

.site-header.scrolled {
  background-color: var(--bg-header);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom-color: var(--border-subtle);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.25rem;
}

.logo-symbol {
  font-family: var(--font-mono);
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 0.2rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(0, 242, 254, 0.2);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  list-style: none;
}

.nav-link {
  font-size: 0.95rem;
  color: var(--text-secondary);
  font-weight: 500;
  position: relative;
  padding: 0.4rem 0;
}

.nav-link:hover, .nav-link.active {
  color: #ffffff;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--accent-cyan);
  border-radius: var(--radius-full);
  box-shadow: 0 0 8px var(--accent-cyan);
}

.mobile-menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  z-index: 1001;
}

.hamburger-line {
  display: block;
  width: 24px;
  height: 2px;
  margin: 5px 0;
  background-color: var(--text-primary);
  transition: all var(--transition-fast);
  border-radius: 2px;
}

/* --------------------------------------------------------------------------
   5. Hero Section & Terminal Visual
   -------------------------------------------------------------------------- */
.hero-section {
  padding-top: calc(var(--header-height) + 4rem);
  padding-bottom: 6rem;
  min-height: 90vh;
  display: flex;
  align-items: center;
}

.hero-container {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4.2rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 1.25rem;
}

.hero-subheadline {
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  color: var(--text-primary);
  font-weight: 500;
  margin-bottom: 1rem;
}

.hero-description {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 580px;
  margin-bottom: 2.25rem;
  line-height: 1.7;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Developer Terminal Visual */
.terminal-window {
  background: rgba(13, 16, 26, 0.9);
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  box-shadow: var(--glow-purple), 0 20px 40px rgba(0, 0, 0, 0.8);
  overflow: hidden;
  backdrop-filter: blur(20px);
  cursor: pointer;
  transition: border-color var(--transition-fast), transform var(--transition-fast);
}

.terminal-window:hover {
  border-color: var(--accent-cyan);
  transform: translateY(-4px);
}

.terminal-header {
  background: rgba(255, 255, 255, 0.04);
  padding: 0.8rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid var(--border-subtle);
}

.terminal-dots {
  display: flex;
  gap: 0.4rem;
}

.dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.dot-red { background-color: #ff5f56; }
.dot-yellow { background-color: #ffbd2e; }
.dot-green { background-color: #27c93f; }

.terminal-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
}

.terminal-status {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #10b981;
  display: flex;
  align-items: center;
  gap: 0.35rem;
}

.pulse-icon {
  width: 6px;
  height: 6px;
  background-color: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 8px #10b981;
  animation: pulse 1.8s infinite;
}

@keyframes pulse {
  0% { opacity: 0.4; transform: scale(0.9); }
  50% { opacity: 1; transform: scale(1.2); }
  100% { opacity: 0.4; transform: scale(0.9); }
}

.terminal-body {
  padding: 1.5rem;
  font-family: var(--font-mono);
  font-size: 0.9rem;
  min-height: 280px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.terminal-line {
  color: #e5e7eb;
  margin-bottom: 1rem;
}

.prompt-user { color: var(--accent-cyan); }
.prompt-path { color: #a855f7; }
.command-text { color: #ffffff; font-weight: 600; }

.terminal-output p {
  margin-bottom: 0.5rem;
  line-height: 1.5;
}

.out-info { color: var(--text-secondary); }
.out-success { color: #34d399; }
.out-highlight { color: var(--accent-cyan); font-weight: 700; }
.out-code {
  background: rgba(0, 0, 0, 0.4);
  padding: 0.3rem 0.6rem;
  border-radius: 4px;
  border-left: 3px solid var(--accent-purple);
  margin-top: 0.4rem;
  color: #f3f4f6;
}

.terminal-interactive-note {
  margin-top: 1.5rem;
  padding-top: 0.75rem;
  border-top: 1px dashed var(--border-subtle);
  font-size: 0.75rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.kbd {
  background: rgba(255, 255, 255, 0.1);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  border: 1px solid var(--border-subtle);
  color: var(--text-primary);
}

/* --------------------------------------------------------------------------
   6. General Section Styling
   -------------------------------------------------------------------------- */
.section {
  padding: 6rem 0;
  position: relative;
}

.section-header {
  max-width: 720px;
  margin-left: auto;
  margin-right: auto;
  margin-bottom: 3.5rem;
}

.section-subtitle {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--accent-cyan);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.6rem;
  display: block;
  font-weight: 600;
}

.section-title {
  font-size: clamp(2rem, 3.5vw, 2.75rem);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: 1rem;
}

.section-lead {
  font-size: 1.1rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   7. About Section
   -------------------------------------------------------------------------- */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-banner-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--glow-subtle);
}

.about-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-smooth);
}

.about-banner-card:hover .about-image {
  transform: scale(1.03);
}

.about-overlay-text {
  position: absolute;
  bottom: 0;
  inset-x: 0;
  background: linear-gradient(to top, rgba(9, 11, 16, 0.95), transparent);
  padding: 2rem 1.5rem 1.5rem;
}

.about-overlay-text h3 {
  font-size: 1.3rem;
  color: #ffffff;
  margin-bottom: 0.3rem;
}

.about-overlay-text p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.about-features-title {
  font-size: 1.4rem;
  margin-bottom: 1.5rem;
  color: #ffffff;
}

.features-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  background: var(--bg-card);
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.feature-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.feature-item strong {
  display: block;
  color: #ffffff;
  font-size: 1rem;
  margin-bottom: 0.2rem;
}

.feature-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   8. Core Values Section
   -------------------------------------------------------------------------- */
.values-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.value-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.25rem 1.75rem;
  position: relative;
  backdrop-filter: blur(12px);
  transition: all var(--transition-smooth);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.value-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.5);
}

.value-vibes:hover { border-color: var(--accent-cyan); box-shadow: var(--glow-cyan); }
.value-code:hover { border-color: var(--accent-blue); box-shadow: 0 0 25px rgba(59, 130, 246, 0.25); }
.value-impact:hover { border-color: var(--accent-purple); box-shadow: var(--glow-purple); }

.value-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.value-number {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.2);
}

.value-icon-wrapper {
  color: var(--accent-cyan);
}

.value-vibes .value-icon-wrapper { color: var(--accent-cyan); }
.value-code .value-icon-wrapper { color: var(--accent-blue); }
.value-impact .value-icon-wrapper { color: var(--accent-purple); }

.value-title {
  font-size: 1.6rem;
  color: #ffffff;
  margin-bottom: 0.75rem;
}

.value-description {
  font-size: 1rem;
  color: var(--text-secondary);
  font-style: italic;
  margin-bottom: 1.75rem;
  line-height: 1.6;
}

.value-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* --------------------------------------------------------------------------
   9. What We Build Section
   -------------------------------------------------------------------------- */
.build-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.build-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  transition: all var(--transition-fast);
  backdrop-filter: blur(10px);
}

.build-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-active);
  transform: translateY(-3px);
}

.build-icon {
  font-size: 2rem;
  display: block;
  margin-bottom: 1rem;
}

.build-title {
  font-size: 1.15rem;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.build-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   10. Who Is It For / Personas
   -------------------------------------------------------------------------- */
.personas-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}

.persona-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  position: relative;
  transition: all var(--transition-smooth);
}

.persona-card:hover {
  border-color: var(--border-purple);
  transform: translateY(-4px);
  box-shadow: var(--glow-purple);
}

.persona-badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-cyan);
  background: rgba(0, 242, 254, 0.1);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  margin-bottom: 1rem;
}

.persona-title {
  font-size: 1.35rem;
  color: #ffffff;
  margin-bottom: 0.6rem;
}

.persona-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* --------------------------------------------------------------------------
   11. How We Work / Workflow
   -------------------------------------------------------------------------- */
.workflow-timeline {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

.workflow-step {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  position: relative;
  transition: border-color var(--transition-fast);
}

.workflow-step:hover {
  border-color: var(--accent-cyan);
}

.step-num {
  font-family: var(--font-mono);
  font-size: 2.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 0.5rem;
}

.step-title {
  font-size: 1.25rem;
  color: #ffffff;
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* --------------------------------------------------------------------------
   12. AI + Coding Philosophy Section
   -------------------------------------------------------------------------- */
.philosophy-box {
  background: linear-gradient(135deg, rgba(18, 22, 34, 0.9), rgba(28, 34, 52, 0.7));
  border: 1px solid var(--border-purple);
  border-radius: var(--radius-lg);
  padding: 3.5rem 2.5rem;
  box-shadow: var(--glow-purple);
}

.philosophy-quote {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  color: var(--accent-cyan);
  font-weight: 600;
  font-style: italic;
  margin-top: 1rem;
}

.philosophy-principles-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 2rem;
  margin-top: 3rem;
}

.principle-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.principle-check {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  background: rgba(16, 185, 129, 0.15);
  color: #10b981;
  border: 1px solid rgba(16, 185, 129, 0.3);
  border-radius: 50%;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

.principle-item h4 {
  font-size: 1.1rem;
  color: #ffffff;
  margin-bottom: 0.3rem;
}

.principle-item p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* --------------------------------------------------------------------------
   13. Community CTA & Contact Form
   -------------------------------------------------------------------------- */
.community-cta-card {
  background: linear-gradient(135deg, rgba(0, 242, 254, 0.1), rgba(139, 92, 246, 0.1));
  border: 1px solid var(--border-active);
  border-radius: var(--radius-lg);
  padding: 4rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.cta-title {
  font-size: clamp(2rem, 4vw, 3rem);
  color: #ffffff;
  margin-bottom: 1rem;
}

.cta-lead {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 2.5rem;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

/* Contact Form */
.contact-card-wrapper {
  max-width: 760px;
  margin: 0 auto;
  background: var(--bg-card-solid);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.6);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.honeypot-field {
  display: none !important;
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-primary);
}

.required-star {
  color: #ef4444;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  background: rgba(9, 11, 16, 0.8);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 0.8rem 1rem;
  color: #ffffff;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--accent-cyan);
  outline: none;
  box-shadow: 0 0 10px rgba(0, 242, 254, 0.2);
}

.form-select option {
  background: #121622;
  color: #ffffff;
}

.error-msg {
  font-size: 0.8rem;
  color: #f87171;
  min-height: 1.2rem;
}

.form-submit-row {
  margin-top: 0.5rem;
}

/* Spinner for submit button */
.spinner {
  display: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(0,0,0,0.3);
  border-radius: 50%;
  border-top-color: #000;
  animation: spin 0.8s linear infinite;
  margin-left: 0.5rem;
}

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

.btn-loading .spinner {
  display: inline-block;
}

.btn-loading .btn-text {
  opacity: 0.8;
}

.form-status {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.95rem;
  margin-top: 1rem;
}

.form-status-success {
  background: rgba(16, 185, 129, 0.15);
  border: 1px solid rgba(16, 185, 129, 0.4);
  color: #34d399;
}

.form-status-error {
  background: rgba(239, 68, 68, 0.15);
  border: 1px solid rgba(239, 68, 68, 0.4);
  color: #f87171;
}

/* --------------------------------------------------------------------------
   14. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: #05070a;
  border-top: 1px solid var(--border-subtle);
  padding-top: 4rem;
  padding-bottom: 2.5rem;
  margin-top: 4rem;
}

.footer-top {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 3rem;
  margin-bottom: 3rem;
}

.footer-brand .brand-logo {
  margin-bottom: 1rem;
}

.footer-tagline {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--accent-cyan);
  margin-bottom: 0.5rem;
}

.footer-subtext {
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 400px;
}

.footer-heading {
  font-size: 1rem;
  color: #ffffff;
  margin-bottom: 1.25rem;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.footer-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

.footer-links a:hover {
  color: var(--accent-cyan);
}

.footer-bottom {
  padding-top: 2rem;
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --------------------------------------------------------------------------
   15. Reveal Animations on Scroll
   -------------------------------------------------------------------------- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
}

.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   16. Responsive Media Queries
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
  }

  .values-grid, .personas-grid, .workflow-timeline {
    grid-template-columns: repeat(2, 1fr);
  }

  .philosophy-principles-grid {
    grid-template-columns: 1fr;
  }

  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .mobile-menu-toggle {
    display: block;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    width: 100%;
    background: rgba(9, 11, 16, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-subtle);
    flex-direction: column;
    padding: 2rem 1.5rem;
    gap: 1.5rem;
    transform: translateY(-150%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-smooth);
  }

  .main-nav.nav-open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-list {
    flex-direction: column;
    gap: 1.25rem;
    width: 100%;
    text-align: center;
  }

  .nav-cta {
    width: 100%;
  }

  .values-grid, .personas-grid, .workflow-timeline {
    grid-template-columns: 1fr;
  }

  .form-grid {
    grid-template-columns: 1fr;
  }

  .contact-card-wrapper {
    padding: 1.5rem;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

/* Accessibility: Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }

  .pulse-icon {
    animation: none;
  }

  .reveal-on-scroll {
    opacity: 1 !important;
    transform: none !important;
  }
}