/* =========================================================
   SKY LIGHT ROOFING — ORLANDO
   Storm-tested. GAF Master Elite. 767 reviews.
   Aesthetic: architectural precision × storm cinema
   ========================================================= */

@layer reset, tokens, base, layout, sections, motion, utilities;

/* =========================================================
   TOKENS — single source of truth (LAW 5)
   ========================================================= */
@layer tokens {
  :root {
    /* Palette */
    --c-primary: #1565C0;       /* blueprint blue */
    --c-primary-dark: #0D47A1;
    --c-primary-rgb: 21, 101, 192;
    --c-secondary: #E65100;     /* signal orange */
    --c-secondary-dark: #BF360C;
    --c-secondary-rgb: 230, 81, 0;
    --c-accent: #F59E0B;        /* warning amber */
    --c-accent-rgb: 245, 158, 11;

    --c-surface-light: #F4F6F8;
    --c-surface-mid: #1F2937;
    --c-surface-dark: #0A1628;
    --c-surface-dark-rgb: 10, 22, 40;
    --c-surface-darker: #060D1A;

    --c-text: #0F172A;
    --c-text-on-dark: #F8FAFC;
    --c-text-muted: #94A3B8;
    --c-text-dim: #64748B;
    --c-white: #FFFFFF;
    --c-success: #16A34A;

    --c-line: rgba(255, 255, 255, 0.08);
    --c-line-strong: rgba(255, 255, 255, 0.16);
    --c-line-light: rgba(15, 23, 42, 0.08);

    /* Typography */
    --font-display: 'Instrument Serif', Georgia, 'Times New Roman', serif;
    --font-body: 'Inter', system-ui, -apple-system, sans-serif;
    --font-mono: 'JetBrains Mono', ui-monospace, 'SF Mono', Menlo, monospace;

    /* Scale (fluid) */
    --fs-mono: clamp(0.6875rem, 0.65rem + 0.2vw, 0.8125rem);
    --fs-body: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
    --fs-lead: clamp(1.0625rem, 1rem + 0.4vw, 1.25rem);
    --fs-h4: clamp(1.25rem, 1.1rem + 0.6vw, 1.5rem);
    --fs-h3: clamp(1.625rem, 1.3rem + 1.2vw, 2.25rem);
    --fs-h2: clamp(2.25rem, 1.6rem + 3vw, 4rem);
    --fs-h1: clamp(3rem, 2rem + 5.5vw, 7.5rem);
    --fs-display: clamp(4rem, 2.5rem + 8vw, 10rem);

    /* Spacing */
    --page-pad: clamp(1.25rem, 4vw, 3rem);
    --section-pad-y: clamp(4rem, 8vw, 7.5rem);
    --section-pad-y-lg: clamp(6rem, 11vw, 10rem);
    --gutter: clamp(1rem, 2vw, 2rem);

    /* Motion */
    --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
    --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
    --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
    --dur-fast: 180ms;
    --dur-base: 360ms;
    --dur-slow: 720ms;

    /* Radius */
    --r-sm: 6px;
    --r-md: 10px;
    --r-lg: 16px;
    --r-pill: 999px;

    /* Shadows (layered) */
    --shadow-sm: 0 1px 2px rgba(10, 22, 40, 0.06), 0 2px 4px rgba(10, 22, 40, 0.04);
    --shadow-md: 0 4px 6px rgba(10, 22, 40, 0.08), 0 10px 16px rgba(10, 22, 40, 0.06), 0 20px 32px rgba(10, 22, 40, 0.04);
    --shadow-lg: 0 8px 12px rgba(10, 22, 40, 0.10), 0 20px 32px rgba(10, 22, 40, 0.08), 0 40px 64px rgba(10, 22, 40, 0.06);
    --shadow-glow-primary: 0 0 0 1px rgba(var(--c-primary-rgb), 0.24), 0 8px 24px rgba(var(--c-primary-rgb), 0.28);
    --shadow-glow-secondary: 0 0 0 1px rgba(var(--c-secondary-rgb), 0.24), 0 8px 24px rgba(var(--c-secondary-rgb), 0.32);
  }
}

/* =========================================================
   RESET
   ========================================================= */
@layer reset {
  *, *::before, *::after { box-sizing: border-box; }
  * { margin: 0; padding: 0; }
  html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; }
  body { min-height: 100vh; font-family: var(--font-body); }
  img, picture, svg, video { display: block; max-width: 100%; }
  img { height: auto; }
  input, button, textarea, select { font: inherit; color: inherit; }
  button { border: 0; background: transparent; cursor: pointer; }
  a { color: inherit; text-decoration: none; }
  ul, ol { list-style: none; }

  ::selection { background: rgba(var(--c-secondary-rgb), 0.35); color: var(--c-text-on-dark); }
  :focus-visible { outline: 2px solid var(--c-secondary); outline-offset: 3px; border-radius: 2px; }

  /* Scrollbar */
  * { scrollbar-width: thin; scrollbar-color: var(--c-primary) transparent; }
  ::-webkit-scrollbar { width: 6px; height: 6px; }
  ::-webkit-scrollbar-thumb { background: var(--c-primary); border-radius: var(--r-pill); }
  ::-webkit-scrollbar-track { background: transparent; }
}

/* =========================================================
   BASE
   ========================================================= */
@layer base {
  body {
    background: var(--c-surface-dark);
    color: var(--c-text-on-dark);
    font-size: var(--fs-body);
    line-height: 1.5;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }

  h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 400; line-height: 1.02; letter-spacing: -0.02em; }
  h1 { font-size: var(--fs-h1); }
  h2 { font-size: var(--fs-h2); }
  h3 { font-size: var(--fs-h3); }
  h4 { font-size: var(--fs-h4); letter-spacing: -0.01em; }

  p { line-height: 1.6; color: var(--c-text-muted); }

  .mono { font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.1em; font-size: var(--fs-mono); font-weight: 500; }

  .serif { font-family: var(--font-display); font-weight: 400; }

  .eyebrow {
    display: inline-flex; align-items: center; gap: 0.75rem;
    font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.14em;
    font-size: var(--fs-mono); font-weight: 500;
    color: var(--c-accent);
  }
  .eyebrow::before {
    content: ""; width: 1.5rem; height: 1px;
    background: var(--c-accent);
  }

  .section-num {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    color: var(--c-text-dim); letter-spacing: 0.12em;
  }
}

/* =========================================================
   LAYOUT PRIMITIVES
   ========================================================= */
@layer layout {
  .container { padding-inline: var(--page-pad); max-width: 1440px; margin-inline: auto; }
  .section { padding-block: var(--section-pad-y); position: relative; }
  .section--lg { padding-block: var(--section-pad-y-lg); }

  /* Fixed grid lines background */
  .grid-lines {
    position: fixed; inset: 0;
    background-image:
      linear-gradient(to right, var(--c-line) 1px, transparent 1px);
    background-size: calc(100% / 12) 100%;
    pointer-events: none;
    z-index: 1;
    opacity: 0.6;
  }

  .grain {
    position: fixed; inset: 0;
    pointer-events: none; z-index: 2;
    opacity: 0.08;
    mix-blend-mode: overlay;
  }
}

/* =========================================================
   GLOBAL UI — NAV, LOADER, CURSOR, CTA
   ========================================================= */
@layer layout {
  /* Loader */
  .loader {
    position: fixed; inset: 0; z-index: 1000;
    background: var(--c-surface-darker);
    display: grid; place-items: center;
    transition: opacity 600ms var(--ease-out), visibility 600ms;
  }
  .loader.is-done { opacity: 0; visibility: hidden; pointer-events: none; }
  .loader__inner { text-align: center; }
  .loader__brand {
    font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2.25rem);
    color: var(--c-text-on-dark); letter-spacing: -0.02em;
    overflow: hidden;
  }
  .loader__brand span {
    display: inline-block;
    transform: translateY(100%);
    animation: loaderLift 800ms var(--ease-out) forwards;
  }
  .loader__brand span:nth-child(2) { animation-delay: 80ms; }
  .loader__brand span:nth-child(3) { animation-delay: 160ms; }
  .loader__tagline {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    color: var(--c-text-dim); letter-spacing: 0.18em;
    text-transform: uppercase;
    margin-top: 1.5rem;
    opacity: 0; animation: loaderFade 600ms var(--ease-out) 500ms forwards;
  }
  .loader__bar {
    width: 200px; height: 1px;
    background: var(--c-line);
    margin: 2rem auto 0;
    overflow: hidden;
    position: relative;
  }
  .loader__bar::after {
    content: ""; position: absolute; inset: 0 100% 0 0;
    background: var(--c-secondary);
    animation: loaderFill 1400ms var(--ease-in-out) 300ms forwards;
  }

  @keyframes loaderLift { to { transform: translateY(0); } }
  @keyframes loaderFade { to { opacity: 1; } }
  @keyframes loaderFill { to { inset: 0 0 0 0; } }

  /* Cursor */
  .cursor-ring, .cursor-dot {
    position: fixed; top: 0; left: 0;
    pointer-events: none; z-index: 9999;
    mix-blend-mode: difference;
    transform: translate(-50%, -50%);
    will-change: transform;
    transition: width 280ms var(--ease-out), height 280ms var(--ease-out), background 280ms var(--ease-out);
  }
  .cursor-ring { width: 32px; height: 32px; border: 1px solid var(--c-white); border-radius: 50%; }
  .cursor-dot { width: 4px; height: 4px; background: var(--c-white); border-radius: 50%; }
  .cursor-ring.is-hover { width: 64px; height: 64px; border-color: var(--c-secondary); background: rgba(var(--c-secondary-rgb), 0.08); }
  .cursor-ring.is-drag { width: 96px; height: 96px; border-color: var(--c-accent); background: rgba(var(--c-accent-rgb), 0.12); }
  .cursor-dot.is-hover { width: 0; height: 0; }

  @media (hover: none) {
    .cursor-ring, .cursor-dot { display: none; }
  }

  /* Nav */
  .nav {
    position: fixed; top: 0; inset-inline: 0; z-index: 100;
    padding-block: 1.125rem;
    padding-inline: var(--page-pad);
    mix-blend-mode: difference;
    transition: transform 400ms var(--ease-out);
  }
  .nav.is-hidden { transform: translateY(-100%); }
  .nav__inner {
    display: flex; align-items: center; justify-content: space-between;
    max-width: 1440px; margin: 0 auto;
  }
  .nav__brand {
    font-family: var(--font-display); font-size: 1.25rem;
    color: var(--c-white); letter-spacing: -0.02em;
    display: flex; align-items: center; gap: 0.625rem;
  }
  .nav__brand::before {
    content: ""; width: 0.5rem; height: 0.5rem;
    background: var(--c-accent); border-radius: 50%;
    box-shadow: 0 0 12px var(--c-accent);
    animation: navPulse 2.4s ease-in-out infinite;
  }
  @keyframes navPulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.35; } }

  .nav__links { display: flex; gap: 2rem; align-items: center; }
  .nav__link {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-white); position: relative;
    transition: color 240ms var(--ease-out);
  }
  .nav__link::after {
    content: ""; position: absolute; left: 0; right: 100%; bottom: -0.375rem;
    height: 1px; background: var(--c-white);
    transition: right 320ms var(--ease-out);
  }
  .nav__link:hover::after { right: 0; }

  .nav__cta {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-white); padding: 0.625rem 1.125rem;
    border: 1px solid var(--c-white);
    border-radius: var(--r-pill);
    position: relative; overflow: hidden;
    transition: color 280ms var(--ease-out);
  }
  .nav__cta::before {
    content: ""; position: absolute; inset: 0;
    background: var(--c-secondary);
    clip-path: inset(0 0 100% 0);
    transition: clip-path 360ms var(--ease-out);
    z-index: -1;
  }
  .nav__cta:hover::before { clip-path: inset(0 0 0 0); }
  .nav__cta:hover { color: var(--c-white); border-color: var(--c-secondary); }

  .nav__mobile { display: none; }

  .nav__burger {
    display: none; width: 44px; height: 44px;
    position: relative;
  }
  .nav__burger span {
    position: absolute; left: 10px; right: 10px; height: 1px;
    background: var(--c-white); transition: transform 300ms var(--ease-out), top 300ms var(--ease-out);
  }
  .nav__burger span:nth-child(1) { top: 18px; }
  .nav__burger span:nth-child(2) { top: 26px; }
  .nav__burger.is-open span:nth-child(1) { top: 22px; transform: rotate(45deg); }
  .nav__burger.is-open span:nth-child(2) { top: 22px; transform: rotate(-45deg); }

  @media (max-width: 900px) {
    .nav__links { display: none; }
    .nav__cta { display: none; }
    .nav__burger { display: block; }
    .nav__mobile {
      display: flex;
      position: fixed; inset: 0; z-index: 99;
      background: var(--c-surface-darker);
      display: flex; flex-direction: column; align-items: center; justify-content: center;
      gap: 2rem;
      clip-path: inset(0 0 100% 0);
      transition: clip-path 500ms var(--ease-out);
    }
    .nav__mobile.is-open { clip-path: inset(0 0 0 0); }
    .nav__mobile .nav__link { font-family: var(--font-display); font-size: clamp(2rem, 6vw, 3rem); letter-spacing: -0.02em; text-transform: none; }
    .nav__mobile .nav__link::after { display: none; }
  }

  /* Buttons */
  .btn {
    display: inline-flex; align-items: center; gap: 0.75rem;
    padding: 1rem 1.5rem;
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    border-radius: var(--r-pill);
    position: relative; overflow: hidden;
    transition: transform 280ms var(--ease-out), color 280ms var(--ease-out);
    will-change: transform;
  }
  .btn__arrow { transition: transform 320ms var(--ease-out); }
  .btn:hover .btn__arrow { transform: translateX(4px); }

  .btn--primary {
    background: var(--c-secondary);
    color: var(--c-white);
    box-shadow: var(--shadow-glow-secondary);
  }
  .btn--primary::after {
    content: ""; position: absolute; inset: 0;
    background: var(--c-secondary-dark);
    clip-path: inset(100% 0 0 0);
    transition: clip-path 400ms var(--ease-out);
    z-index: -1;
  }
  .btn--primary:hover::after { clip-path: inset(0 0 0 0); }

  .btn--ghost {
    border: 1px solid var(--c-line-strong);
    color: var(--c-text-on-dark);
    background: transparent;
  }
  .btn--ghost::after {
    content: ""; position: absolute; inset: 0;
    background: rgba(255, 255, 255, 0.06);
    clip-path: inset(0 100% 0 0);
    transition: clip-path 400ms var(--ease-out);
    z-index: -1;
  }
  .btn--ghost:hover::after { clip-path: inset(0 0 0 0); }

  .btn--lg { padding: 1.25rem 2rem; font-size: 0.875rem; }

  /* Scroll progress */
  .scroll-progress {
    position: fixed; top: 0; left: 0;
    height: 2px; width: 0%;
    background: var(--c-secondary);
    z-index: 101;
    transition: width 120ms linear;
  }
}

/* =========================================================
   SECTIONS
   ========================================================= */
@layer sections {

  /* ----- HERO ----- */
  .hero {
    min-height: 100svh;
    padding-block: clamp(6rem, 14vw, 10rem) var(--section-pad-y);
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--c-surface-darker) 0%, var(--c-surface-dark) 100%);
  }
  .hero::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 70% 30%, rgba(var(--c-primary-rgb), 0.22) 0%, transparent 60%);
    pointer-events: none;
  }
  .hero::after {
    /* storm light ray */
    content: ""; position: absolute; top: -10%; right: -10%;
    width: 80%; height: 120%;
    background: linear-gradient(110deg, transparent 40%, rgba(var(--c-accent-rgb), 0.06) 50%, transparent 60%);
    pointer-events: none;
    transform: rotate(-6deg);
  }
  .hero__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
    gap: clamp(2rem, 4vw, 4rem);
    align-items: end;
    position: relative;
    z-index: 3;
  }
  .hero__eyebrow { margin-bottom: 1.5rem; }
  .hero__title {
    font-size: var(--fs-h1);
    line-height: 0.96;
    margin-bottom: 1.75rem;
    color: var(--c-text-on-dark);
  }
  .hero__title em {
    font-style: italic;
    color: var(--c-accent);
  }
  .hero__title .char { display: inline-block; }
  .hero__sub {
    font-size: var(--fs-lead);
    color: var(--c-text-muted);
    max-width: 48ch;
    margin-bottom: 2.5rem;
  }
  .hero__actions {
    display: flex; gap: 1rem; flex-wrap: wrap;
    margin-bottom: 3rem;
  }
  .hero__meta {
    display: flex; gap: 2rem; flex-wrap: wrap;
    padding-top: 1.5rem;
    border-top: 1px solid var(--c-line);
  }
  .hero__meta-item {
    display: flex; flex-direction: column; gap: 0.25rem;
  }
  .hero__meta-label { color: var(--c-text-dim); }
  .hero__meta-value { color: var(--c-text-on-dark); font-family: var(--font-display); font-size: 1.25rem; }

  /* Hero image panel */
  .hero__visual {
    position: relative;
    aspect-ratio: 4 / 5;
    border-radius: var(--r-lg);
    overflow: hidden;
    transform: translateY(2rem);
    box-shadow: var(--shadow-lg);
  }
  .hero__visual img {
    width: 100%; height: 100%; object-fit: cover;
    transition: transform 1.2s var(--ease-out);
  }
  .hero__visual::before {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 40%, rgba(var(--c-surface-darker-rgb, 6, 13, 26), 0.8) 100%);
    z-index: 1;
  }
  .hero__visual-badge {
    position: absolute; bottom: 1.5rem; left: 1.5rem; z-index: 2;
    padding: 0.625rem 1rem;
    background: rgba(10, 22, 40, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--c-line-strong);
    border-radius: var(--r-sm);
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-text-on-dark);
  }
  .hero__visual-badge strong { color: var(--c-accent); }

  @media (max-width: 900px) {
    .hero__inner { grid-template-columns: 1fr; gap: 2rem; }
    .hero__visual { aspect-ratio: 4 / 3; transform: none; }
  }

  /* ----- FORM (Above fold CTA) ----- */
  .form-cta {
    padding-block: var(--section-pad-y);
    background: var(--c-surface-light);
    color: var(--c-text);
    position: relative;
  }
  .form-cta__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.1fr);
    gap: clamp(2rem, 4vw, 4rem);
    align-items: center;
  }
  .form-cta__headline {
    color: var(--c-text);
    max-width: 18ch;
    margin-bottom: 1.25rem;
  }
  .form-cta__sub {
    color: var(--c-text-dim);
    max-width: 38ch;
    margin-bottom: 2rem;
  }
  .form-cta__meta {
    display: flex; flex-direction: column; gap: 0.75rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--c-line-light);
  }
  .form-cta__meta-item {
    display: flex; align-items: center; gap: 0.75rem;
    font-size: var(--fs-body);
    color: var(--c-text);
  }
  .form-cta__meta-item::before {
    content: ""; width: 0.375rem; height: 0.375rem;
    background: var(--c-secondary);
    border-radius: 50%;
    flex-shrink: 0;
  }

  .form-card {
    background: var(--c-white);
    border-radius: var(--r-lg);
    padding: clamp(1.5rem, 3vw, 2.5rem);
    box-shadow: var(--shadow-lg);
    position: relative;
  }
  .form-card::before {
    content: ""; position: absolute; top: -6px; left: 1.5rem; right: 1.5rem;
    height: 6px; background: var(--c-secondary);
    border-radius: var(--r-sm) var(--r-sm) 0 0;
  }
  .form-card h3 { color: var(--c-text); font-size: 1.5rem; margin-bottom: 0.5rem; }
  .form-card__sub { color: var(--c-text-dim); font-size: var(--fs-mono); font-family: var(--font-mono); text-transform: uppercase; letter-spacing: 0.1em; margin-bottom: 1.5rem; }

  .form-field { margin-bottom: 1rem; position: relative; }
  .form-field label {
    display: block;
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-text-dim);
    margin-bottom: 0.375rem;
  }
  .form-field input,
  .form-field select {
    width: 100%;
    padding: 0.875rem 1rem;
    background: var(--c-surface-light);
    border: 1px solid transparent;
    border-radius: var(--r-md);
    font-size: var(--fs-body);
    color: var(--c-text);
    transition: border-color 240ms var(--ease-out), background 240ms var(--ease-out), box-shadow 240ms var(--ease-out);
  }
  .form-field input:focus,
  .form-field select:focus {
    outline: 0;
    background: var(--c-white);
    border-color: var(--c-primary);
    box-shadow: 0 0 0 4px rgba(var(--c-primary-rgb), 0.12);
  }
  .form-field input::placeholder { color: var(--c-text-dim); }

  .form-card__submit {
    width: 100%;
    margin-top: 0.5rem;
    justify-content: center;
  }
  .form-card__trust {
    display: flex; align-items: center; gap: 0.5rem;
    font-size: var(--fs-mono); font-family: var(--font-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-text-dim);
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--c-line-light);
    justify-content: center;
  }

  @media (max-width: 900px) {
    .form-cta__inner { grid-template-columns: 1fr; gap: 2rem; }
  }

  /* ----- STATS ----- */
  .stats {
    padding-block: calc(var(--section-pad-y) * 0.7);
    background: var(--c-surface-darker);
    border-top: 1px solid var(--c-line);
    border-bottom: 1px solid var(--c-line);
    position: relative;
    overflow: hidden;
  }
  .stats::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(ellipse at 20% 50%, rgba(var(--c-primary-rgb), 0.14) 0%, transparent 50%);
    pointer-events: none;
  }
  .stats__inner {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 0;
    position: relative;
  }
  .stat {
    padding: 2rem 1rem;
    border-left: 1px solid var(--c-line);
    position: relative;
  }
  .stat:first-child { border-left: 0; padding-left: 0; }
  .stat__value {
    font-family: var(--font-display); font-weight: 400;
    font-size: clamp(2.5rem, 2rem + 4vw, 5rem);
    line-height: 1; letter-spacing: -0.03em;
    color: var(--c-accent);
    margin-bottom: 0.75rem;
  }
  .stat__value-suffix { color: var(--c-text-on-dark); }
  .stat__label {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.12em;
    color: var(--c-text-dim);
  }
  @media (max-width: 768px) {
    .stats__inner { grid-template-columns: repeat(2, 1fr); gap: 1px; }
    .stat { border-left: 1px solid var(--c-line); padding: 1.5rem 0.75rem; }
    .stat:nth-child(odd) { border-left: 0; }
  }

  /* ----- TRANSFORMATION (SIGNATURE) ----- */
  .transform {
    padding-block: var(--section-pad-y-lg);
    position: relative;
    overflow: hidden;
  }
  .transform__header {
    display: grid;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 1fr);
    gap: 2rem;
    align-items: end;
    margin-bottom: 3rem;
  }
  .transform__headline {
    color: var(--c-text-on-dark);
    font-size: var(--fs-h1);
    line-height: 0.96;
    max-width: 14ch;
  }
  .transform__sub {
    color: var(--c-text-muted);
    max-width: 32ch;
    padding-bottom: 0.5rem;
  }
  .transform__canvas {
    position: relative;
    width: 100%;
    aspect-ratio: 16 / 9;
    border-radius: var(--r-lg);
    overflow: hidden;
    user-select: none;
    -webkit-user-select: none;
    cursor: ew-resize;
    box-shadow: var(--shadow-lg);
    background: var(--c-surface-darker);
  }
  .transform__layer {
    position: absolute; inset: 0;
    background-size: cover; background-position: center;
    will-change: clip-path;
  }
  .transform__layer--before {
    background-image: url('assets/service-emergency.png');
    filter: saturate(0.55) contrast(1.1) brightness(0.6) hue-rotate(-10deg);
  }
  .transform__layer--before::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, rgba(10, 22, 40, 0.45) 0%, rgba(10, 22, 40, 0.65) 100%);
  }
  .transform__layer--after {
    background-image: url('assets/service-residential.png');
    filter: saturate(1.05) contrast(1.05) brightness(1);
    clip-path: polygon(0 0, 50% 0, 50% 100%, 0 100%);
    transition: clip-path 50ms linear;
  }
  .transform__layer--after::after {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(10, 22, 40, 0.25) 100%);
  }
  .transform__handle {
    position: absolute; top: 0; bottom: 0;
    left: 50%;
    width: 4px;
    background: var(--c-white);
    transform: translateX(-50%);
    z-index: 4;
    pointer-events: none;
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.5);
  }
  .transform__handle-knob {
    position: absolute; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    width: 56px; height: 56px;
    background: var(--c-accent);
    border-radius: 50%;
    display: grid; place-items: center;
    pointer-events: auto;
    cursor: grab;
    box-shadow: 0 0 0 8px rgba(var(--c-accent-rgb), 0.24), var(--shadow-lg);
    transition: transform 240ms var(--ease-out), box-shadow 240ms var(--ease-out);
  }
  .transform__handle-knob:active { cursor: grabbing; transform: translate(-50%, -50%) scale(1.08); }
  .transform__handle-knob svg { width: 20px; height: 20px; color: var(--c-surface-dark); }
  .transform__caption {
    position: absolute; bottom: 1.5rem; z-index: 3;
    padding: 0.625rem 1rem;
    background: rgba(10, 22, 40, 0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid var(--c-line-strong);
    border-radius: var(--r-sm);
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-text-on-dark);
  }
  .transform__caption--before { left: 1.5rem; color: var(--c-text-muted); }
  .transform__caption--after { right: 1.5rem; color: var(--c-accent); }
  .transform__progress {
    display: flex; align-items: center; gap: 1rem;
    margin-top: 2rem;
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.12em;
    color: var(--c-text-dim);
  }
  .transform__progress-bar {
    flex: 1; height: 1px;
    background: var(--c-line);
    position: relative;
    overflow: hidden;
  }
  .transform__progress-bar::after {
    content: ""; position: absolute; left: 0; top: 0; bottom: 0;
    width: var(--transform-pct, 50%);
    background: var(--c-accent);
    transition: width 50ms linear;
  }
  .transform__progress-value { color: var(--c-accent); font-weight: 600; min-width: 3ch; }

  @media (max-width: 768px) {
    .transform__header { grid-template-columns: 1fr; gap: 1.5rem; }
    .transform__canvas { aspect-ratio: 4 / 3; }
    .transform__handle-knob { width: 48px; height: 48px; }
  }

  /* ----- CERTIFICATIONS ----- */
  .certs {
    padding-block: var(--section-pad-y);
    background: var(--c-surface-darker);
    position: relative;
  }
  .certs::before {
    content: ""; position: absolute; top: 0; right: 0;
    width: 40%; height: 100%;
    background: radial-gradient(circle at 80% 50%, rgba(var(--c-secondary-rgb), 0.08) 0%, transparent 60%);
    pointer-events: none;
  }
  .certs__header { margin-bottom: 3rem; max-width: 48rem; }
  .certs__headline { color: var(--c-text-on-dark); margin-top: 1rem; }
  .certs__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
  }
  .cert {
    padding: 2rem 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--c-line);
    border-radius: var(--r-md);
    position: relative;
    overflow: hidden;
    transition: transform 360ms var(--ease-out), border-color 360ms var(--ease-out), background 360ms var(--ease-out);
  }
  .cert::before {
    content: ""; position: absolute; inset: 0;
    background: linear-gradient(135deg, rgba(var(--c-primary-rgb), 0.06) 0%, transparent 100%);
    opacity: 0; transition: opacity 400ms var(--ease-out);
  }
  .cert:hover {
    transform: translateY(-4px);
    border-color: var(--c-accent);
    background: rgba(var(--c-accent-rgb), 0.03);
  }
  .cert:hover::before { opacity: 1; }
  .cert:nth-child(2) {
    grid-row: span 2;
    background: linear-gradient(135deg, rgba(var(--c-accent-rgb), 0.08) 0%, transparent 100%);
    border-color: var(--c-accent);
  }
  .cert__num {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    color: var(--c-text-dim); letter-spacing: 0.12em;
    margin-bottom: 1.5rem;
  }
  .cert__name {
    font-family: var(--font-display); font-size: var(--fs-h4);
    color: var(--c-text-on-dark);
    margin-bottom: 0.5rem;
    line-height: 1.1;
  }
  .cert__desc {
    color: var(--c-text-muted);
    font-size: var(--fs-body);
    line-height: 1.5;
  }
  @media (max-width: 900px) {
    .certs__grid { grid-template-columns: repeat(2, 1fr); }
    .cert:nth-child(2) { grid-row: auto; }
  }
  @media (max-width: 480px) {
    .certs__grid { grid-template-columns: 1fr; }
  }

  /* ----- ABOUT / MISSION ----- */
  .about {
    padding-block: var(--section-pad-y-lg);
    background: var(--c-surface-darker);
    color: var(--c-text-on-dark);
    position: relative;
    overflow: hidden;
  }
  .about::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse at 80% 20%, rgba(21,101,192,0.12) 0%, transparent 55%),
      radial-gradient(ellipse at 10% 90%, rgba(230,81,0,0.06) 0%, transparent 50%);
    pointer-events: none;
  }
  .about__inner {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: clamp(2rem, 6vw, 6rem);
    align-items: center;
    position: relative;
  }
  .about__visual {
    position: relative;
    aspect-ratio: 4/5;
    border-radius: var(--r-xl);
    overflow: hidden;
    border: 1px solid var(--c-line);
  }
  .about__visual img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: saturate(0.9) contrast(1.05);
    transition: transform 900ms var(--ease-out);
  }
  .about__visual:hover img { transform: scale(1.03); }
  .about__badge {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    padding: 1rem 1.25rem;
    background: var(--c-surface-dark);
    border: 1px solid var(--c-line);
    border-radius: var(--r-md);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    backdrop-filter: blur(12px);
  }
  .about__badge-num {
    font-family: var(--font-display);
    font-size: 2.75rem;
    line-height: 1;
    color: var(--c-secondary);
    letter-spacing: -0.02em;
  }
  .about__badge-label {
    font-size: 0.75rem;
    line-height: 1.3;
    color: var(--c-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
  }
  .about__headline {
    margin-top: 1rem;
    font-size: var(--fs-h2);
    line-height: 1.05;
    max-width: 22ch;
  }
  .about__lead {
    margin-top: 1.5rem;
    font-size: var(--fs-lead);
    line-height: 1.55;
    color: var(--c-text-muted);
    max-width: 42ch;
  }
  .about__body {
    margin-top: 1.25rem;
    font-size: var(--fs-body);
    line-height: 1.65;
    color: var(--c-text-muted);
    max-width: 42ch;
  }
  .about__quote {
    margin-top: 2rem;
    padding: 1.5rem 1.75rem;
    border-left: 2px solid var(--c-secondary);
    background: rgba(21,101,192,0.04);
    border-radius: 0 var(--r-md) var(--r-md) 0;
    position: relative;
  }
  .about__quote-mark {
    position: absolute;
    top: -0.5rem;
    left: 1rem;
    font-family: var(--font-display);
    font-size: 3rem;
    line-height: 1;
    color: var(--c-secondary);
    opacity: 0.4;
  }
  .about__quote p {
    font-family: var(--font-display);
    font-size: 1.125rem;
    line-height: 1.5;
    color: var(--c-text-on-dark);
    font-style: italic;
  }
  .about__quote-attrib {
    display: block;
    margin-top: 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--c-text-muted);
  }
  @media (max-width: 900px) {
    .about__inner { grid-template-columns: 1fr; }
    .about__visual { aspect-ratio: 16/10; max-height: 420px; }
  }

  /* ----- WHY CHOOSE US ----- */
  .why {
    padding-block: var(--section-pad-y-lg);
    background: var(--c-surface-light);
    position: relative;
  }
  .why__header {
    text-align: center;
    margin-bottom: 4rem;
    max-width: 48rem;
    margin-inline: auto;
  }
  .why__headline {
    margin-top: 1rem;
    font-size: var(--fs-h2);
    line-height: 1.05;
  }
  .why__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .why-card {
    padding: 2.5rem 2rem;
    background: var(--c-white);
    border: 1px solid rgba(15,23,42,0.08);
    border-radius: var(--r-lg);
    transition: transform 500ms var(--ease-out), border-color 300ms;
    position: relative;
    overflow: hidden;
  }
  .why-card::after {
    content: "";
    position: absolute;
    top: 0; left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 500ms var(--ease-out);
  }
  .why-card:hover {
    transform: translateY(-4px);
    border-color: rgba(21,101,192,0.3);
  }
  .why-card:hover::after { transform: scaleX(1); }
  .why-card--featured {
    background: var(--c-surface-dark);
    color: var(--c-text-on-dark);
    border-color: transparent;
  }
  .why-card--featured::after { transform: scaleX(1); }
  .why-card__num {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--c-secondary);
    margin-bottom: 1.5rem;
  }
  .why-card--featured .why-card__num { color: var(--c-accent); }
  .why-card__title {
    font-family: var(--font-display);
    font-size: 1.75rem;
    line-height: 1.1;
    margin-bottom: 0.875rem;
    color: var(--c-text);
  }
  .why-card--featured .why-card__title { color: var(--c-text-on-dark); }
  .why-card__desc {
    font-size: 0.95rem;
    line-height: 1.6;
    color: var(--c-text-muted);
  }
  @media (max-width: 900px) {
    .why__grid { grid-template-columns: 1fr; }
  }

  /* ----- SERVICES ----- */
  .services { padding-block: var(--section-pad-y-lg); }
  .services__header { margin-bottom: 4rem; max-width: 48rem; }
  .services__headline { margin-top: 1rem; }
  .services__grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.5rem;
  }
  .service {
    grid-column: span 2;
    aspect-ratio: 1 / 1.1;
    position: relative;
    border-radius: var(--r-lg);
    overflow: hidden;
    background: var(--c-surface-mid);
    transition: transform 600ms var(--ease-out);
  }
  .service:nth-child(1) { transform: translateY(2rem); }
  .service:nth-child(4) { transform: translateY(2rem); }
  .service__media {
    position: absolute; inset: 0;
    overflow: hidden;
  }
  .service__media img {
    width: 100%; height: 100%;
    object-fit: cover;
    transition: transform 900ms var(--ease-out), filter 600ms var(--ease-out);
    filter: brightness(0.55) saturate(0.9);
  }
  .service:hover .service__media img {
    transform: scale(1.05);
    filter: brightness(0.75) saturate(1);
  }
  .service__overlay {
    position: absolute; inset: 0;
    background: linear-gradient(180deg, transparent 30%, rgba(6, 13, 26, 0.92) 100%);
    z-index: 1;
  }
  .service__content {
    position: absolute; inset: auto 0 0 0; z-index: 2;
    padding: clamp(1.5rem, 3vw, 2.5rem);
  }
  .service__num {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    color: var(--c-accent); letter-spacing: 0.12em;
    margin-bottom: 0.75rem;
  }
  .service__title {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 1.2rem + 1.5vw, 2.25rem);
    color: var(--c-text-on-dark);
    margin-bottom: 0.75rem;
    line-height: 1.05;
  }
  .service__desc {
    color: var(--c-text-muted);
    max-width: 42ch;
    font-size: var(--fs-body);
    line-height: 1.55;
  }
  .service__arrow {
    position: absolute; top: clamp(1.5rem, 3vw, 2.5rem); right: clamp(1.5rem, 3vw, 2.5rem);
    width: 44px; height: 44px;
    border: 1px solid var(--c-line-strong);
    border-radius: 50%;
    display: grid; place-items: center;
    color: var(--c-text-on-dark);
    transition: background 320ms var(--ease-out), border-color 320ms var(--ease-out), transform 320ms var(--ease-out);
  }
  .service:hover .service__arrow {
    background: var(--c-secondary);
    border-color: var(--c-secondary);
    transform: rotate(-45deg);
  }
  @media (max-width: 900px) {
    .services__grid { grid-template-columns: 1fr; gap: 1rem; }
    .service { grid-column: span 1; aspect-ratio: 16 / 10; transform: none !important; }
  }

  /* ----- PROCESS ----- */
  .process {
    padding-block: var(--section-pad-y);
    background: var(--c-surface-darker);
    border-top: 1px solid var(--c-line);
  }
  .process__header { margin-bottom: 4rem; max-width: 40rem; }
  .process__headline { margin-top: 1rem; color: var(--c-text-on-dark); }
  .process__list {
    display: flex; flex-direction: column;
    max-width: 56rem;
    position: relative;
  }
  .process__list::before {
    content: ""; position: absolute;
    top: 2.5rem; bottom: 2.5rem; left: 2rem;
    width: 1px;
    background: var(--c-line);
  }
  .process__list::after {
    content: ""; position: absolute;
    top: 2.5rem; left: 2rem;
    width: 1px; height: var(--process-progress, 0%);
    background: var(--c-accent);
    transition: height 120ms linear;
    box-shadow: 0 0 12px rgba(var(--c-accent-rgb), 0.5);
  }
  .process-step {
    display: grid;
    grid-template-columns: 4rem 1fr;
    gap: 2rem;
    padding-block: 2rem;
    border-bottom: 1px solid var(--c-line);
    position: relative;
  }
  .process-step:last-child { border-bottom: 0; }
  .process-step__num {
    font-family: var(--font-mono); font-size: 1.25rem;
    color: var(--c-accent); letter-spacing: 0.08em;
    background: var(--c-surface-darker);
    z-index: 1;
    padding: 0 0.5rem 0 0;
  }
  .process-step__title {
    font-family: var(--font-display);
    font-size: var(--fs-h3);
    color: var(--c-text-on-dark);
    margin-bottom: 0.5rem;
  }
  .process-step__desc {
    color: var(--c-text-muted);
    max-width: 58ch;
  }
  @media (max-width: 600px) {
    .process__list::before, .process__list::after { display: none; }
    .process-step { grid-template-columns: 1fr; gap: 0.5rem; padding-block: 1.5rem; }
  }

  /* ----- FINANCING ----- */
  .financing {
    padding-block: var(--section-pad-y);
    text-align: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(180deg, var(--c-surface-dark) 0%, var(--c-surface-darker) 100%);
  }
  .financing::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(circle at 50% 100%, rgba(var(--c-secondary-rgb), 0.18) 0%, transparent 55%);
    pointer-events: none;
  }
  .financing__inner { position: relative; z-index: 1; max-width: 56rem; margin: 0 auto; }
  .financing__eyebrow { justify-content: center; margin-bottom: 1rem; display: inline-flex; }
  .financing__headline {
    font-size: var(--fs-h1);
    color: var(--c-text-on-dark);
    margin: 0 auto 1.5rem;
    max-width: 14ch;
  }
  .financing__headline em {
    color: var(--c-accent);
    font-style: italic;
  }
  .financing__sub {
    font-size: var(--fs-lead);
    color: var(--c-text-muted);
    max-width: 42rem; margin: 0 auto 2.5rem;
  }
  .financing__cta { margin: 0 auto; }
  .financing__cards {
    display: grid; grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 4rem;
  }
  .financing-card {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--c-line);
    border-radius: var(--r-md);
    text-align: left;
  }
  .financing-card__num {
    font-family: var(--font-display);
    font-size: 2.25rem;
    color: var(--c-accent);
    line-height: 1;
  }
  .financing-card__label {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-text-dim);
    margin-top: 0.75rem;
  }
  @media (max-width: 600px) {
    .financing__cards { grid-template-columns: 1fr; }
  }

  /* ----- SERVICE AREA ----- */
  .area { padding-block: var(--section-pad-y); }
  .area__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.2fr);
    gap: clamp(2rem, 4vw, 4rem);
    align-items: start;
  }
  .area__header { position: sticky; top: 6rem; }
  .area__headline { color: var(--c-text-on-dark); margin-top: 1rem; }
  .area__map {
    aspect-ratio: 4 / 3;
    border-radius: var(--r-lg);
    overflow: hidden;
    position: relative;
    background: var(--c-surface-mid);
    box-shadow: var(--shadow-lg);
  }
  .area__map img {
    width: 100%; height: 100%; object-fit: cover;
    filter: saturate(0.7) brightness(0.75);
  }
  .area__cities {
    margin-top: 2rem;
    display: flex; flex-direction: column;
    gap: 0;
  }
  .area-city {
    display: grid;
    grid-template-columns: 2rem 1fr auto;
    gap: 1rem;
    padding: 1.25rem 0;
    border-bottom: 1px solid var(--c-line);
    align-items: center;
    transition: padding-left 280ms var(--ease-out), background 280ms var(--ease-out);
    cursor: pointer;
  }
  .area-city:hover {
    padding-left: 1rem;
    background: linear-gradient(90deg, rgba(var(--c-accent-rgb), 0.04), transparent);
  }
  .area-city__num {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    color: var(--c-text-dim); letter-spacing: 0.1em;
  }
  .area-city__name {
    font-family: var(--font-display); font-size: var(--fs-h4);
    color: var(--c-text-on-dark);
  }
  .area-city__desc {
    font-size: var(--fs-mono);
    font-family: var(--font-mono);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--c-text-dim);
    text-align: right;
  }
  @media (max-width: 900px) {
    .area__inner { grid-template-columns: 1fr; }
    .area__header { position: static; }
  }
  @media (max-width: 600px) {
    .area-city { grid-template-columns: 2rem 1fr; }
    .area-city__desc { grid-column: 2; text-align: left; font-size: 0.7rem; }
  }

  /* ----- TESTIMONIALS ----- */
  .reviews {
    padding-block: var(--section-pad-y);
    background: var(--c-surface-darker);
    overflow: hidden;
    position: relative;
  }
  .reviews__header {
    padding-inline: var(--page-pad);
    max-width: 1440px;
    margin: 0 auto 3rem;
  }
  .reviews__headline { color: var(--c-text-on-dark); margin-top: 1rem; max-width: 22ch; }
  .reviews__marquee {
    display: flex;
    gap: 1.5rem;
    animation: marquee 32s linear infinite;
    width: max-content;
  }
  .reviews:hover .reviews__marquee { animation-play-state: paused; }
  @keyframes marquee { to { transform: translateX(-50%); } }

  .review {
    flex: 0 0 clamp(20rem, 32vw, 26rem);
    padding: 2rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--c-line);
    border-radius: var(--r-lg);
    display: flex; flex-direction: column;
    gap: 1.5rem;
    position: relative;
  }
  .review__quote-mark {
    font-family: var(--font-display);
    font-size: 4rem; line-height: 0.5;
    color: var(--c-accent);
    opacity: 0.3;
    margin-top: -0.5rem;
  }
  .review__quote {
    font-family: var(--font-display);
    font-size: 1.25rem;
    color: var(--c-text-on-dark);
    line-height: 1.35;
    letter-spacing: -0.005em;
  }
  .review__meta {
    display: flex; align-items: center; gap: 0.875rem;
    padding-top: 1rem;
    border-top: 1px solid var(--c-line);
    margin-top: auto;
  }
  .review__avatar {
    width: 40px; height: 40px;
    background: var(--c-primary);
    color: var(--c-white);
    border-radius: 50%;
    display: grid; place-items: center;
    font-family: var(--font-display); font-size: 1rem;
  }
  .review__name {
    color: var(--c-text-on-dark);
    font-weight: 500;
    font-size: var(--fs-body);
  }
  .review__source {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-text-dim);
  }
  .review__stars {
    display: flex; gap: 2px;
    color: var(--c-accent);
    margin-left: auto;
  }

  /* ----- FAQ ----- */
  .faq { padding-block: var(--section-pad-y); }
  .faq__inner {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1.5fr);
    gap: clamp(2rem, 4vw, 5rem);
    align-items: start;
  }
  .faq__header { position: sticky; top: 6rem; }
  .faq__headline { color: var(--c-text-on-dark); margin-top: 1rem; max-width: 18ch; }
  .faq__list {
    display: flex; flex-direction: column;
  }
  .faq-item {
    border-bottom: 1px solid var(--c-line);
  }
  .faq-item summary {
    display: grid;
    grid-template-columns: 3rem 1fr auto;
    gap: 1.5rem;
    padding: 1.5rem 0;
    cursor: pointer;
    list-style: none;
    align-items: center;
    font-family: var(--font-display);
    font-size: var(--fs-h4);
    color: var(--c-text-on-dark);
    line-height: 1.2;
  }
  .faq-item summary::-webkit-details-marker { display: none; }
  .faq-item__num {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    color: var(--c-text-dim); letter-spacing: 0.1em;
  }
  .faq-item__icon {
    width: 32px; height: 32px;
    border: 1px solid var(--c-line-strong);
    border-radius: 50%;
    display: grid; place-items: center;
    color: var(--c-text-on-dark);
    transition: transform 400ms var(--ease-out), background 400ms var(--ease-out), border-color 400ms var(--ease-out);
  }
  .faq-item[open] .faq-item__icon {
    transform: rotate(45deg);
    background: var(--c-accent);
    border-color: var(--c-accent);
    color: var(--c-surface-darker);
  }
  .faq-item__body {
    padding: 0 0 1.75rem 4.5rem;
    color: var(--c-text-muted);
    font-size: var(--fs-body);
    line-height: 1.6;
    max-width: 64ch;
  }
  @media (max-width: 900px) {
    .faq__inner { grid-template-columns: 1fr; }
    .faq__header { position: static; }
    .faq-item summary { grid-template-columns: 2rem 1fr auto; gap: 1rem; font-size: 1.125rem; }
    .faq-item__body { padding-left: 3rem; }
  }

  /* ----- FINAL CTA ----- */
  .final-cta {
    padding-block: var(--section-pad-y-lg);
    text-align: center;
    background: radial-gradient(ellipse at center, var(--c-surface-dark) 0%, var(--c-surface-darker) 100%);
    position: relative;
    overflow: hidden;
  }
  .final-cta::before {
    content: ""; position: absolute; inset: 0;
    background: radial-gradient(circle at 50% 50%, rgba(var(--c-secondary-rgb), 0.12) 0%, transparent 60%);
  }
  .final-cta__inner { position: relative; z-index: 1; }
  .final-cta__headline {
    font-size: var(--fs-display);
    color: var(--c-text-on-dark);
    line-height: 0.96;
    letter-spacing: -0.03em;
    margin: 1rem auto 2rem;
    max-width: 16ch;
  }
  .final-cta__headline em { color: var(--c-accent); font-style: italic; }
  .final-cta__sub {
    font-size: var(--fs-lead);
    color: var(--c-text-muted);
    max-width: 36rem; margin: 0 auto 3rem;
  }

  /* ----- FOOTER ----- */
  .footer {
    padding-block: var(--section-pad-y) calc(var(--section-pad-y) * 0.5);
    background: var(--c-surface-darker);
    border-top: 1px solid var(--c-line);
  }
  .footer__inner {
    display: grid;
    grid-template-columns: minmax(0, 1.4fr) repeat(3, minmax(0, 1fr));
    gap: clamp(1.5rem, 3vw, 3rem);
    padding-bottom: 3rem;
    border-bottom: 1px solid var(--c-line);
  }
  .footer__brand .nav__brand { font-size: 1.5rem; margin-bottom: 1rem; }
  .footer__tagline {
    color: var(--c-text-muted);
    max-width: 28ch;
    line-height: 1.5;
  }
  .footer__col h5 {
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.12em;
    color: var(--c-text-dim);
    margin-bottom: 1.25rem;
  }
  .footer__col ul { display: flex; flex-direction: column; gap: 0.625rem; }
  .footer__col a, .footer__col li {
    color: var(--c-text-on-dark);
    font-size: var(--fs-body);
    transition: color 240ms var(--ease-out);
  }
  .footer__col a:hover { color: var(--c-accent); }
  .footer__legal {
    display: flex; justify-content: space-between; align-items: center;
    gap: 1rem; flex-wrap: wrap;
    padding-top: 1.5rem;
    font-family: var(--font-mono); font-size: var(--fs-mono);
    text-transform: uppercase; letter-spacing: 0.1em;
    color: var(--c-text-dim);
  }
  @media (max-width: 900px) {
    .footer__inner { grid-template-columns: 1fr 1fr; }
    .footer__brand { grid-column: span 2; }
  }
  @media (max-width: 480px) {
    .footer__inner { grid-template-columns: 1fr; }
    .footer__brand { grid-column: 1; }
  }

}

/* =========================================================
   MOTION
   ========================================================= */
@layer motion {
  /* CSS scroll-driven: reveal up */
  .reveal-up {
    opacity: 0;
    transform: translateY(2rem);
    animation: revealUp 900ms var(--ease-out) both;
    animation-timeline: view();
    animation-range: entry 0% entry 70%;
  }
  @keyframes revealUp {
    to { opacity: 1; transform: translateY(0); }
  }

  .reveal-fade {
    opacity: 0;
    animation: revealFade 800ms var(--ease-out) both;
    animation-timeline: view();
    animation-range: entry 0% entry 60%;
  }
  @keyframes revealFade { to { opacity: 1; } }

  /* Section background parallax */
  .parallax-bg {
    animation: parallaxBg linear both;
    animation-timeline: view();
    animation-range: cover;
  }
  @keyframes parallaxBg {
    from { transform: translateY(-6%); }
    to { transform: translateY(6%); }
  }

  /* Character stagger (hero headline) */
  .char {
    display: inline-block;
    opacity: 0;
    transform: translateY(100%);
    transition: opacity 60ms linear, transform 900ms var(--ease-out);
  }
  .char.is-in { opacity: 1; transform: translateY(0); }

  /* Service card reveal — CSS scroll-driven WITH JS fallback */
  @supports (animation-timeline: view()) {
    .service {
      opacity: 0;
      animation: serviceReveal 1100ms var(--ease-out) both;
      animation-timeline: view();
      animation-range: entry 0% entry 50%;
    }
  }
  @supports not (animation-timeline: view()) {
    .service { opacity: 0; transform: translateY(3rem); transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out); }
    .service.is-visible { opacity: 1; transform: translateY(0); }
  }
  .js-ready .service { opacity: 0; transform: translateY(3rem); transition: opacity 800ms var(--ease-out), transform 800ms var(--ease-out); animation: none; }
  .js-ready .service.is-visible { opacity: 1; transform: translateY(0); }
  @keyframes serviceReveal {
    from { opacity: 0; transform: translateY(3rem); }
    to { opacity: 1; }
  }

  /* Cert stagger — same strategy */
  @supports (animation-timeline: view()) {
    .cert {
      opacity: 0;
      animation: certReveal 700ms var(--ease-out) both;
      animation-timeline: view();
      animation-range: entry 10% entry 60%;
    }
    .cert:nth-child(1) { animation-delay: 0ms; }
    .cert:nth-child(2) { animation-delay: 80ms; }
    .cert:nth-child(3) { animation-delay: 160ms; }
    .cert:nth-child(4) { animation-delay: 240ms; }
    .cert:nth-child(5) { animation-delay: 320ms; }
  }
  @supports not (animation-timeline: view()) {
    .cert { opacity: 0; transform: translateY(2rem); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); }
    .cert.is-visible { opacity: 1; transform: translateY(0); }
    .cert:nth-child(2) { transition-delay: 80ms; }
    .cert:nth-child(3) { transition-delay: 160ms; }
    .cert:nth-child(4) { transition-delay: 240ms; }
    .cert:nth-child(5) { transition-delay: 320ms; }
  }
  .js-ready .cert { opacity: 0; transform: translateY(2rem); transition: opacity 600ms var(--ease-out), transform 600ms var(--ease-out); animation: none; }
  .js-ready .cert.is-visible { opacity: 1; transform: translateY(0); }
  .js-ready .cert:nth-child(2) { transition-delay: 80ms; }
  .js-ready .cert:nth-child(3) { transition-delay: 160ms; }
  .js-ready .cert:nth-child(4) { transition-delay: 240ms; }
  .js-ready .cert:nth-child(5) { transition-delay: 320ms; }

  /* Why-card stagger — same strategy */
  @supports not (animation-timeline: view()) {
    .why-card { opacity: 0; transform: translateY(2rem); transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out), border-color 300ms; }
    .why-card.is-visible { opacity: 1; transform: translateY(0); }
    .why-card:nth-child(2) { transition-delay: 100ms; }
    .why-card:nth-child(3) { transition-delay: 200ms; }
  }
  .js-ready .why-card { opacity: 0; transform: translateY(2rem); transition: opacity 700ms var(--ease-out), transform 700ms var(--ease-out), border-color 300ms; animation: none; }
  .js-ready .why-card.is-visible { opacity: 1; transform: translateY(0); }
  .js-ready .why-card:nth-child(2) { transition-delay: 100ms; }
  .js-ready .why-card:nth-child(3) { transition-delay: 200ms; }
  @keyframes certReveal {
    from { opacity: 0; transform: translateY(2rem); }
    to { opacity: 1; transform: translateY(0); }
  }

  /* Hero visual settle */
  .hero__visual {
    animation: heroVisual 1400ms var(--ease-out) 800ms both;
  }
  @keyframes heroVisual {
    from { opacity: 0; transform: translateY(4rem) scale(0.98); }
    to { opacity: 1; transform: translateY(2rem) scale(1); }
  }
  @media (max-width: 900px) {
    @keyframes heroVisual {
      from { opacity: 0; transform: translateY(2rem) scale(0.98); }
      to { opacity: 1; transform: translateY(0) scale(1); }
    }
  }

  /* Reduced motion */
  @media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
      animation-duration: 0.01ms !important;
      animation-delay: 0ms !important;
      transition-duration: 0.01ms !important;
      scroll-behavior: auto !important;
    }
    .reviews__marquee { animation: none !important; }
    .char { opacity: 1 !important; transform: none !important; }
    .hero__visual { opacity: 1 !important; transform: none !important; }
  }
}

/* =========================================================
   UTILITIES
   ========================================================= */
@layer utilities {
  .sr-only {
    position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
    overflow: hidden; clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
  }
  @media print {
    .nav, .loader, .cursor-ring, .cursor-dot, .grain, .grid-lines { display: none !important; }
  }
  @media (min-width: 1920px) {
    :root { --page-pad: clamp(2rem, 5vw, 4rem); }
    .container { max-width: 1680px; }
  }
}