:root {
    --cream: #F5F0E8;
    --warm-white: #FDFAF5;
    --terracotta: #B85C38;
    --terracotta-light: #E8D5CB;
    --charcoal: #2A2420;
    --mid: #6B5E56;
    --border: rgba(42,36,32,0.12);
    --serif: 'Playfair Display', Georgia, serif;
    --sans: 'DM Sans', system-ui, sans-serif;
  }

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

  html { scroll-behavior: smooth; }

  body {
    font-family: var(--sans);
    background: var(--warm-white);
    color: var(--charcoal);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
  }

  /* ── NAV ── */
  nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 3rem;
    background: rgba(253,250,245,0.88);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
  }

  .nav-logo {
    font-family: var(--serif);
    font-size: 1.2rem;
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--charcoal);
    text-decoration: none;
  }

  .nav-links {
    display: flex;
    gap: 2.5rem;
    list-style: none;
  }

  .nav-links a {
    font-size: 0.8rem;
    font-weight: 400;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--mid);
    text-decoration: none;
    transition: color 0.2s;
  }

  .nav-links a:hover { color: var(--charcoal); }

  .nav-cta {
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--warm-white) !important;
    background: var(--terracotta);
    padding: 0.6rem 1.4rem;
    border-radius: 2px;
    text-decoration: none;
    transition: opacity 0.2s;
  }

  .nav-cta:hover { opacity: 0.88; }

  /* ── HERO ── */
  .hero {
    min-height: 100vh;
    display: grid;
    grid-template-columns: 1fr 1fr;
    padding-top: 5rem;
    overflow: hidden;
  }

  .hero-left {
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 5rem 3rem 5rem 3rem;
  }

  .hero-eyebrow {
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--terracotta);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .hero-eyebrow::before {
    content: '';
    display: block;
    width: 2rem;
    height: 1px;
    background: var(--terracotta);
  }

  .hero-title {
    font-family: var(--serif);
    font-size: clamp(2.8rem, 5vw, 4.2rem);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: -0.01em;
    margin-bottom: 2rem;
    color: var(--charcoal);
  }

  .hero-title em {
    font-style: italic;
    color: var(--terracotta);
  }

  .hero-body {
    font-size: 1.05rem;
    font-weight: 300;
    color: var(--mid);
    line-height: 1.75;
    max-width: 38ch;
    margin-bottom: 2.5rem;
  }

  .hero-actions {
    display: flex;
    align-items: center;
    gap: 2rem;
  }

  .btn-primary {
    display: inline-block;
    font-size: 0.82rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--warm-white);
    background: var(--charcoal);
    padding: 0.9rem 2rem;
    border-radius: 2px;
    text-decoration: none;
    transition: background 0.2s;
  }

  .btn-primary:hover { background: var(--terracotta); }

  .btn-text {
    font-size: 0.82rem;
    font-weight: 400;
    color: var(--mid);
    text-decoration: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 2px;
    transition: color 0.2s, border-color 0.2s;
  }

  .btn-text:hover { color: var(--charcoal); border-color: var(--charcoal); }

  .hero-right {
    position: relative;
    background: var(--cream);
    overflow: hidden;
  }

  .hero-visual {
    position: absolute;
    top: 4rem;
    left: 0;
    right: 0;
    bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  /* Animated compositing demo */
  .composite-demo {
    position: relative;
    width: 340px;
    height: 500px;
  }

  .demo-frame {
    position: absolute;
    inset: 0;
    border: 1.5px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
    background: var(--warm-white);
  }

  /* Hero slideshow image */
  #hero-slide {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    object-position: center top;
    display: block;
    transition: opacity 0.6s ease;
  }

  /* Simulated garment silhouette */
  .garment {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 200px;
  }

  .garment-body {
    width: 100%;
    height: 100%;
    background: var(--terracotta-light);
    border-radius: 8px 8px 4px 4px;
    position: relative;
  }

  .garment-body::before {
    content: '';
    position: absolute;
    top: 0; left: 50%;
    transform: translateX(-50%);
    width: 40px;
    height: 40px;
    background: var(--warm-white);
    border-radius: 0 0 50% 50%;
  }

  .garment-sleeve-l, .garment-sleeve-r {
    position: absolute;
    top: 12px;
    width: 30px;
    height: 80px;
    background: var(--terracotta-light);
    border-radius: 4px;
  }

  .garment-sleeve-l { right: 100%; margin-right: -4px; border-radius: 6px 2px 4px 6px; }
  .garment-sleeve-r { left: 100%; margin-left: -4px; border-radius: 2px 6px 6px 4px; }

  /* Floating tag */
  .demo-tag {
    position: absolute;
    top: 1rem;
    left: 1rem;
    transform: none;
    background: var(--charcoal);
    color: var(--warm-white);
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.4rem 0.9rem;
    border-radius: 2px;
    white-space: nowrap;
    animation: tagpulse 3s ease-in-out infinite;
  }

  @keyframes tagpulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.6; }
  }

  /* Floating stat cards */
  .stat-card {
    position: absolute;
    z-index: 1;
    background: var(--warm-white);
    border: 1px solid var(--border);
    border-radius: 4px;
    padding: 0.75rem 1rem;
    box-shadow: 0 4px 24px rgba(42,36,32,0.08);
    animation: floatcard 5s ease-in-out infinite;
  }

  .stat-card:nth-child(2) { animation-delay: -2.5s; }

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

  .stat-card-1 {
    top: 2rem;
    right: -1.5rem;
  }

  .stat-card-2 {
    bottom: 4rem;
    left: -1.5rem;
  }

  .stat-label {
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--mid);
    margin-bottom: 0.2rem;
  }

  .stat-value {
    font-family: var(--serif);
    font-size: 1.5rem;
    font-weight: 400;
    color: var(--charcoal);
    line-height: 1;
  }

  .stat-sub {
    font-size: 0.7rem;
    color: var(--mid);
    margin-top: 0.15rem;
  }

  /* Decorative grid lines on hero right */
  .hero-grid {
    position: absolute;
    inset: 0;
    background-image:
      linear-gradient(var(--border) 1px, transparent 1px),
      linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 40px 40px;
    opacity: 0.4;
  }

  /* ── SECTION SHARED ── */
  section { padding: 6rem 3rem; }

  .section-label {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    color: var(--terracotta);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
  }

  .section-label::before {
    content: '';
    display: block;
    width: 1.5rem;
    height: 1px;
    background: var(--terracotta);
  }

  .section-title {
    font-family: var(--serif);
    font-size: clamp(2rem, 3.5vw, 2.8rem);
    font-weight: 400;
    line-height: 1.2;
    color: var(--charcoal);
    margin-bottom: 1rem;
  }

  .section-title em { font-style: italic; color: var(--terracotta); }

  .section-body {
    font-size: 1rem;
    font-weight: 300;
    color: var(--mid);
    line-height: 1.8;
    max-width: 48ch;
  }

  /* ── HOW IT WORKS ── */
  .how-it-works {
    background: var(--cream);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }

  .how-inner {
    max-width: 1100px;
    margin: 0 auto;
  }

  .how-header {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    margin-bottom: 4rem;
    align-items: end;
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    border: 1px solid var(--border);
    border-radius: 4px;
    overflow: hidden;
  }

  .step {
    padding: 2rem 1.75rem;
    border-right: 1px solid var(--border);
    background: var(--warm-white);
    transition: background 0.2s;
    position: relative;
  }

  .step:last-child { border-right: none; }
  .step:hover { background: var(--warm-white); }

  .step-num {
    font-family: var(--serif);
    font-size: 2.5rem;
    font-weight: 400;
    color: var(--terracotta-light);
    line-height: 1;
    margin-bottom: 1rem;
    display: block;
  }

  .step-title {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--charcoal);
    margin-bottom: 0.6rem;
    letter-spacing: 0.01em;
  }

  .step-desc {
    font-size: 0.82rem;
    font-weight: 300;
    color: var(--mid);
    line-height: 1.7;
  }

  .step-owner {
    display: inline-block;
    margin-top: 1rem;
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    padding: 0.25rem 0.6rem;
    border-radius: 2px;
    border: 1px solid var(--border);
    color: var(--mid);
  }

  /* ── FOUNDERS ── */
  .founders {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: center;
  }

  .founders-text {}

  .founder-cards {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .founder-card {
    display: flex;
    align-items: flex-start;
    gap: 1.25rem;
    padding: 1.5rem;
    border: 1px solid var(--border);
    border-radius: 4px;
    background: var(--cream);
  }

  .founder-avatar {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: var(--serif);
    font-size: 1.1rem;
    font-weight: 400;
    color: var(--warm-white);
  }

  .avatar-terracotta { background: var(--terracotta); }
  .avatar-charcoal { background: var(--charcoal); }

  .founder-info {}

  .founder-name {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--charcoal);
    margin-bottom: 0.2rem;
  }

  .founder-role {
    font-size: 0.75rem;
    font-weight: 400;
    color: var(--terracotta);
    letter-spacing: 0.04em;
    margin-bottom: 0.5rem;
  }

  .founder-desc {
    font-size: 0.82rem;
    font-weight: 300;
    color: var(--mid);
    line-height: 1.65;
  }

  /* ── CONTACT ── */
  .contact-section {
    background: var(--charcoal);
    color: var(--warm-white);
  }

  .contact-inner {
    max-width: 1100px;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    align-items: start;
  }

  .contact-section .section-label { color: var(--terracotta-light); }
  .contact-section .section-label::before { background: var(--terracotta-light); }
  .contact-section .section-title { color: var(--warm-white); }
  .contact-section .section-body { color: rgba(253,250,245,0.6); }

  .contact-details {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

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

  .contact-label {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--terracotta-light);
    min-width: 5rem;
    padding-top: 1px;
  }

  .contact-value {
    font-size: 0.9rem;
    font-weight: 300;
    color: rgba(253,250,245,0.85);
  }

  /* Contact form */
  .contact-form {
    display: flex;
    flex-direction: column;
    gap: 1rem;
  }

  .form-group {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
  }

  .form-label {
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(253,250,245,0.5);
  }

  .form-input, .form-textarea {
    font-family: var(--sans);
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--warm-white);
    background: rgba(253,250,245,0.06);
    border: 1px solid rgba(253,250,245,0.15);
    border-radius: 2px;
    padding: 0.8rem 1rem;
    outline: none;
    transition: border-color 0.2s;
    width: 100%;
  }

  .form-input::placeholder, .form-textarea::placeholder {
    color: rgba(253,250,245,0.25);
  }

  .form-input:focus, .form-textarea:focus {
    border-color: var(--terracotta);
  }

  .form-textarea { min-height: 100px; resize: vertical; }

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

  .form-submit {
    font-family: var(--sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--warm-white);
    background: var(--terracotta);
    border: none;
    border-radius: 2px;
    padding: 0.9rem 2rem;
    cursor: pointer;
    transition: opacity 0.2s;
    width: fit-content;
  }

  .form-submit:hover { opacity: 0.85; }

  /* ── FOOTER ── */
  footer {
    background: var(--charcoal);
    border-top: 1px solid rgba(253,250,245,0.08);
    padding: 2rem 3rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
  }

  .footer-logo {
    font-family: var(--serif);
    font-size: 1rem;
    font-weight: 400;
    color: rgba(253,250,245,0.5);
    text-decoration: none;
  }

  .footer-note {
    font-size: 0.75rem;
    font-weight: 300;
    color: rgba(253,250,245,0.3);
  }

  /* ── PAGE LOAD ANIMATION ── */
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    animation: fadein 0.8s ease forwards;
  }

  .fade-in:nth-child(2) { animation-delay: 0.15s; }
  .fade-in:nth-child(3) { animation-delay: 0.3s; }
  .fade-in:nth-child(4) { animation-delay: 0.45s; }

  @keyframes fadein {
    to { opacity: 1; transform: translateY(0); }
  }

  /* ── CHAT WIDGET ── */
  #chat-widget {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    z-index: 200;
    font-family: var(--sans);
  }

  #chat-toggle {
    font-family: var(--sans);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--warm-white);
    background: var(--terracotta);
    border: none;
    border-radius: 2px;
    padding: 0.75rem 1.4rem;
    cursor: pointer;
    transition: opacity 0.2s;
    box-shadow: 0 4px 20px rgba(184,92,56,0.35);
  }

  #chat-toggle:hover { opacity: 0.88; }

  #chat-panel {
    position: absolute;
    bottom: calc(100% + 0.75rem);
    right: 0;
    width: 340px;
    max-height: 500px;
    background: var(--warm-white);
    border: 1px solid var(--border);
    border-radius: 4px;
    box-shadow: 0 8px 48px rgba(42,36,32,0.18);
    display: flex;
    flex-direction: column;
    overflow: hidden;
  }

  #chat-header {
    background: var(--charcoal);
    padding: 1rem 1.25rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
  }

  .chat-header-title {
    font-family: var(--serif);
    font-size: 1rem;
    font-weight: 400;
    color: var(--warm-white);
  }

  .chat-header-sub {
    font-size: 0.68rem;
    color: rgba(253,250,245,0.45);
    margin-top: 0.15rem;
    letter-spacing: 0.03em;
  }

  #chat-close {
    background: none;
    border: none;
    color: rgba(253,250,245,0.45);
    cursor: pointer;
    font-size: 1rem;
    padding: 0;
    line-height: 1;
    transition: color 0.2s;
  }

  #chat-close:hover { color: var(--warm-white); }

  #chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 1.25rem;
    display: flex;
    flex-direction: column;
    gap: 0.65rem;
    background: var(--cream);
  }

  .chat-msg { max-width: 86%; }
  .chat-msg-assistant { align-self: flex-start; }
  .chat-msg-user { align-self: flex-end; }
  .chat-msg-thinking { align-self: flex-start; }

  .chat-bubble {
    font-size: 0.84rem;
    font-weight: 300;
    line-height: 1.65;
    padding: 0.6rem 0.85rem;
    border-radius: 2px;
  }

  .chat-msg-assistant .chat-bubble {
    background: var(--warm-white);
    border: 1px solid var(--border);
    color: var(--charcoal);
  }

  .chat-msg-user .chat-bubble {
    background: var(--terracotta);
    color: var(--warm-white);
  }

  .chat-msg-thinking .chat-bubble {
    background: var(--warm-white);
    border: 1px solid var(--border);
    color: var(--mid);
    letter-spacing: 0.1em;
  }

  #chat-input-area {
    border-top: 1px solid var(--border);
    padding: 0.75rem 1rem;
    display: flex;
    gap: 0.5rem;
    align-items: flex-end;
    background: var(--warm-white);
    flex-shrink: 0;
  }

  #chat-input {
    flex: 1;
    font-family: var(--sans);
    font-size: 0.84rem;
    font-weight: 300;
    color: var(--charcoal);
    background: var(--cream);
    border: 1px solid var(--border);
    border-radius: 2px;
    padding: 0.6rem 0.75rem;
    outline: none;
    resize: none;
    line-height: 1.5;
    max-height: 100px;
    transition: border-color 0.2s;
  }

  #chat-input:focus { border-color: var(--terracotta); }
  #chat-input::placeholder { color: rgba(42,36,32,0.28); }

  #chat-send {
    font-family: var(--sans);
    font-size: 1rem;
    color: var(--warm-white);
    background: var(--terracotta);
    border: none;
    border-radius: 2px;
    padding: 0.6rem 0.9rem;
    cursor: pointer;
    transition: opacity 0.2s;
    flex-shrink: 0;
    line-height: 1;
  }

  #chat-send:hover { opacity: 0.85; }
  #chat-send:disabled { opacity: 0.35; cursor: not-allowed; }

  @media (max-width: 480px) {
    #chat-widget { bottom: 1.25rem; right: 1.25rem; }
    #chat-panel { width: calc(100vw - 2.5rem); }
  }

  /* ── NEXT STEP BUTTON (on image frame) ── */
  .btn-next-step {
    position: absolute;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--sans);
    font-size: 0.72rem;
    font-weight: 500;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--warm-white);
    background: rgba(42,36,32,0.72);
    backdrop-filter: blur(6px);
    border: 1px solid rgba(253,250,245,0.18);
    border-radius: 2px;
    padding: 0.55rem 1rem;
    cursor: pointer;
    white-space: nowrap;
    transition: background 0.2s;
  }

  .btn-next-step:hover { background: var(--terracotta); border-color: var(--terracotta); }

  .btn-next-play {
    font-size: 0.55rem;
    opacity: 0.8;
  }

  /* ── REEL MODAL ── */
  #reel-modal {
    position: fixed;
    inset: 0;
    z-index: 300;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }

  #reel-modal.is-open {
    opacity: 1;
    pointer-events: all;
  }

  #reel-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(42,36,32,0.85);
    backdrop-filter: blur(4px);
  }

  #reel-container {
    position: relative;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    width: 100%;
    max-width: 960px;
    max-height: 90vh;
    background: var(--warm-white);
    border-radius: 4px;
    overflow: auto;
    transform: translateY(16px);
    transition: transform 0.3s ease;
  }

  #reel-modal.is-open #reel-container {
    transform: translateY(0);
  }

  #reel-close {
    position: absolute;
    top: 1rem;
    right: 1rem;
    z-index: 10;
    background: rgba(42,36,32,0.5);
    border: none;
    color: var(--warm-white);
    width: 2rem;
    height: 2rem;
    border-radius: 50%;
    font-size: 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
  }

  #reel-close:hover { background: var(--charcoal); }

  #reel-video-col {
    position: relative;
    background: var(--charcoal);
  }

  #reel-video {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
  }

  #reel-video-label {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    font-size: 0.65rem;
    font-weight: 500;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(253,250,245,0.6);
  }

  #reel-copy-col {
    padding: 3rem 2.5rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
    overflow-y: auto;
  }

  #reel-headline {
    font-family: var(--serif);
    font-size: clamp(1.6rem, 2.5vw, 2.2rem);
    font-weight: 400;
    line-height: 1.2;
    color: var(--charcoal);
    margin: 0.75rem 0 1.25rem;
  }

  #reel-headline em { font-style: italic; color: var(--terracotta); }

  #reel-body {
    font-size: 0.9rem;
    font-weight: 300;
    color: var(--mid);
    line-height: 1.75;
    margin-bottom: 1.5rem;
  }

  #reel-bullets {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 2rem;
  }

  #reel-bullets li {
    font-size: 0.84rem;
    font-weight: 300;
    color: var(--charcoal);
    padding-left: 1.25rem;
    position: relative;
  }

  #reel-bullets li::before {
    content: '→';
    position: absolute;
    left: 0;
    color: var(--terracotta);
    font-size: 0.75rem;
  }

  #reel-footnote {
    margin-top: 1rem;
    font-size: 0.72rem;
    font-weight: 300;
    color: var(--mid);
    font-style: italic;
  }

  @media (max-width: 680px) {
    #reel-modal { padding: 1rem; }
    #reel-container { grid-template-columns: 1fr; max-height: 92vh; }
    #reel-video-col { min-height: 220px; }
    #reel-copy-col { padding: 2rem 1.5rem; }
  }

  /* ── RESPONSIVE ── */
  @media (max-width: 860px) {
    nav { padding: 1rem 1.5rem; }
    .nav-links { display: none; }
    .hero { grid-template-columns: 1fr; }
    .hero-right { min-height: 550px; }
    .composite-demo { width: 270px; height: 400px; }
    .hero-left { padding: 6rem 1.5rem 2rem; }
    section { padding: 4rem 1.5rem; }
    .how-header { grid-template-columns: 1fr; gap: 2rem; }
    .steps-grid { grid-template-columns: 1fr; }
    .step { border-bottom: 1px solid var(--border); }
    .founders { grid-template-columns: 1fr; gap: 3rem; }
    .contact-inner { grid-template-columns: 1fr; gap: 3rem; }
    .form-row { grid-template-columns: 1fr; }
    footer { flex-direction: column; gap: 0.5rem; text-align: center; }
  }