/* ==========================================================
   ShadeFlow — Plain CSS Stylesheet
   Mobile-first, semantic, no frameworks
   ========================================================== */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Fraunces:ital,wght@0,400;0,600;1,400;1,600&family=Inter:wght@400;500;600;700&display=swap');

/* ---------- Design Tokens ---------- */
:root {
  --primary:        #e97125;
  --primary-light:  #f08040;
  --primary-fg:     #fdfaf7;
  --ink:            #181c26;
  --ink-70:         rgba(24,28,38,.70);
  --ink-85:         rgba(24,28,38,.85);
  --bg:             #faf9f6;
  --fg:             #1a1e2b;
  --card:           #ffffff;
  --border:         #ece9e3;
  --muted:          #f2ede6;
  --muted-fg:       #6b6860;
  --white-10:       rgba(255,255,255,.10);
  --white-20:       rgba(255,255,255,.20);
  --white-60:       rgba(255,255,255,.60);
  --white-70:       rgba(255,255,255,.70);
  --white-80:       rgba(255,255,255,.80);
  --white-90:       rgba(255,255,255,.90);

  --font-display:   'Fraunces', 'Playfair Display', Georgia, serif;
  --font-sans:      'Inter', system-ui, sans-serif;

  --shadow-elegant: 0 24px 60px -20px rgba(24,28,38,.45);
  --shadow-sm:      0 1px 3px rgba(0,0,0,.08);

  --max-w:          88rem;   /* 1408px – generous 7xl equivalent */
  --px:             1.5rem;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--fg);
  line-height: 1.7;
  font-size: 1.0625rem; /* 17px */
}

img { display: block; max-width: 100%; height: auto; }
a  { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.015em;
  line-height: 1.05;
}

/* ---------- Utility Classes ---------- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--px);
}

.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;
}

.label-overline {
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .25em;
  color: var(--primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5rem;
  padding: 1rem 1.5rem;
  font-size: .75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .15em;
  transition: opacity .2s, filter .2s;
  font-family: var(--font-sans);
  line-height: 1;
}
.btn:hover { opacity: .92; }
.btn-primary { background: var(--primary); color: var(--primary-fg); }
.btn-primary:hover { filter: brightness(1.08); opacity: 1; }
.btn-ink { background: var(--ink); color: #fff; }
.btn-white { background: #fff; color: var(--ink); }

/* ---------- SVG Icons (inline via PHP) ---------- */
.icon { width: 1em; height: 1em; display: inline-block; vertical-align: middle; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.icon-sm { font-size: .9rem; }
.icon-md { font-size: 1.1rem; }

/* ============================================================
   HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(250,249,246,.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: background .3s;
}
.site-header.transparent {
  position: absolute;
  top: 0; left: 0; right: 0;
  background: transparent;
  border-bottom: none;
  color: #fff;
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 5rem;
}

/* Logo */
.logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  flex-shrink: 0;
}
.logo__icon {
  width: 2.5rem; height: 2.5rem;
  border-radius: .375rem;
  background: var(--primary);
  color: var(--primary-fg);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
  flex-shrink: 0;
}
.logo__text { line-height: 1; }
.logo__name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: .08em;
  font-weight: 600;
}
.logo__sub {
  font-size: .6rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  opacity: .65;
  margin-top: .1rem;
}

/* Desktop nav */
.nav-desktop {
  display: none;
  align-items: center;
  gap: 2rem;
}
.nav-desktop a {
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .15em;
  transition: color .2s;
}
.nav-desktop a:hover,
.nav-desktop a.active { color: var(--primary); }

.header-actions {
  display: none;
  align-items: center;
  gap: 1.25rem;
}
.header-phone {
  font-size: .8rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: .4rem;
  transition: color .2s;
}
.header-phone:hover { color: var(--primary); }

/* Hamburger */
.nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem; height: 2.5rem;
  color: inherit;
}
.nav-toggle svg { width: 1.5rem; height: 1.5rem; }
.nav-toggle .icon-close { display: none; }
.nav-toggle.open .icon-open  { display: none; }
.nav-toggle.open .icon-close { display: block; }

/* Mobile drawer */
.nav-mobile {
  display: none;
  background: var(--bg);
  color: var(--fg);
  border-top: 1px solid var(--border);
  padding: 1rem var(--px) 1.5rem;
}
.nav-mobile.open { display: block; }
.nav-mobile a {
  display: block;
  padding: .6rem 0;
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .15em;
  transition: color .2s;
}
.nav-mobile a:hover { color: var(--primary); }
.nav-mobile .btn-primary {
  display: block;
  text-align: center;
  margin-top: .75rem;
  width: 100%;
}

/* Transparent header overrides */
.site-header.transparent .logo__name,
.site-header.transparent .logo__sub,
.site-header.transparent .nav-desktop a,
.site-header.transparent .header-phone { color: #fff; }
.site-header.transparent .nav-toggle { color: #fff; }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 47.5rem;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(24,28,38,.88) 0%, rgba(24,28,38,.65) 55%, rgba(24,28,38,.28) 100%);
}
.hero__inner {
  position: relative;
  display: grid;
  gap: 2.5rem;
  width: 100%;
  padding-top: 9rem;
  padding-bottom: 5rem;
}

.hero__eyebrow {
  display: flex;
  align-items: center;
  gap: .5rem;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .25em;
  color: var(--primary);
  margin-bottom: 1.25rem;
}
.hero__title {
  font-size: clamp(2.4rem, 6vw, 4.5rem);
  line-height: 1.02;
  margin-bottom: 1.5rem;
  text-wrap: balance;
}
.hero__title .accent { color: var(--primary); font-style: normal; }
.hero__body {
  font-size: 1.1rem;
  color: var(--white-80);
  max-width: 36rem;
  line-height: 1.75;
  margin-bottom: 2.5rem;
}
.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}
.hero__badge {
  display: flex;
  align-items: center;
  gap: .5rem;
  border: 1px solid var(--white-20);
  background: rgba(255,255,255,.05);
  backdrop-filter: blur(6px);
  padding: .5rem 1rem;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .15em;
}
.hero__badge svg { color: var(--primary); }

/* Hero form card */
.hero__form-card {
  background: rgba(24,28,38,.82);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--white-10);
  padding: 2rem;
  box-shadow: var(--shadow-elegant);
}
.hero__form-head {
  text-align: center;
  margin-bottom: 1.25rem;
}
.hero__form-label {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--white-90);
}
.hero__phone {
  display: block;
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--primary);
  letter-spacing: -.02em;
  margin-top: .25rem;
  transition: opacity .2s;
}
.hero__phone:hover { opacity: .85; }
.hero__form-sub {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--white-60);
  margin-top: .25rem;
}

/* ============================================================
   QUOTE FORM (shared)
   ============================================================ */
.quote-form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: .75rem;
}
.quote-form input,
.quote-form textarea {
  width: 100%;
  background: rgba(255,255,255,.95);
  color: var(--ink);
  padding: .75rem 1rem;
  font-size: .875rem;
  font-family: var(--font-sans);
  border: 1px solid var(--white-20);
  border-radius: 2px;
  outline: none;
  transition: box-shadow .2s;
}
.quote-form input::placeholder,
.quote-form textarea::placeholder { color: rgba(24,28,38,.45); }
.quote-form input:focus,
.quote-form textarea:focus { box-shadow: 0 0 0 2px var(--primary); }
.quote-form textarea { grid-column: 1 / -1; resize: none; }
.quote-form .btn { grid-column: 1 / -1; }
.quote-form .form-msg {
  grid-column: 1 / -1;
  padding: .6rem .75rem;
  font-size: .8rem;
  border-radius: 2px;
  display: none;
}
.quote-form .form-msg.success { background: #d4edda; color: #1a5e2a; display: block; }
.quote-form .form-msg.error   { background: #f8d7da; color: #721c24; display: block; }

/* ============================================================
   SECTIONS — Shared spacing
   ============================================================ */
.section { padding-block: 6rem; }
.section--sm { padding-block: 4rem; }
.section--dark { background: var(--ink); color: #fff; }

.section__overline { margin-bottom: .75rem; }
.section__title {
  font-size: clamp(2rem, 4vw, 3.2rem);
  line-height: 1.05;
}
.section__title .accent { color: var(--primary); }
.section__title .italic-accent { color: var(--primary); font-style: italic; }

/* ============================================================
   PRODUCTS GRID (homepage)
   ============================================================ */
.products-section .section__header {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  margin-bottom: 3.5rem;
}
.view-all {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .15em;
  transition: color .2s;
  flex-shrink: 0;
}
.view-all:hover { color: var(--primary); }

.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.product-card { display: block; }
.product-card__img-wrap {
  aspect-ratio: 3/4;
  overflow: hidden;
  background: var(--muted);
}
.product-card__img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .7s cubic-bezier(.16,1,.3,1);
}
.product-card:hover .product-card__img { transform: scale(1.05); }
.product-card__body { padding-top: 1.25rem; }
.product-card__title { font-size: 1.2rem; }
.product-card__copy {
  font-size: .875rem;
  color: var(--muted-fg);
  margin-top: .25rem;
}

/* ============================================================
   WHY US GRID
   ============================================================ */
.why-grid {
  display: grid;
  gap: 3rem;
}
.why-intro .section__body {
  color: var(--white-70);
  margin-top: 1.5rem;
  line-height: 1.75;
}
.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}
.feature-card {
  border: 1px solid var(--white-10);
  padding: 1.5rem;
  transition: border-color .2s;
}
.feature-card:hover { border-color: var(--primary); }
.feature-icon {
  width: 2.5rem; height: 2.5rem;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: var(--primary-fg);
  margin-bottom: 1rem;
}
.feature-icon svg { width: 1.1rem; height: 1.1rem; }
.feature-card h3 { font-size: 1.15rem; margin-bottom: .5rem; }
.feature-card p  { font-size: .875rem; color: var(--white-70); }

/* ============================================================
   TESTIMONIALS
   ============================================================ */
.testimonials-grid {
  display: grid;
  gap: 1.5rem;
  margin-top: 3.5rem;
}
.testimonial-card {
  background: var(--card);
  border: 1px solid var(--border);
  padding: 2rem;
  box-shadow: var(--shadow-sm);
}
.stars { display: flex; gap: .2rem; color: var(--primary); margin-bottom: 1rem; }
.stars svg { width: 1rem; height: 1rem; fill: currentColor; }
.testimonial-card blockquote {
  color: rgba(26,30,43,.8);
  line-height: 1.75;
  margin-bottom: 1.5rem;
  font-size: .95rem;
}
.testimonial-card cite {
  font-size: .8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .15em;
  font-style: normal;
}
.testimonial-card cite span {
  color: var(--muted-fg);
  font-weight: 400;
}

/* ============================================================
   CTA / FULL-WIDTH FORM SECTION
   ============================================================ */
.cta-section { padding-bottom: 6rem; }

.cta-form-section {
  background: var(--muted);
  color: var(--fg);
  padding: 5rem var(--px) 0;
}
.cta-form-section__inner {
  max-width: 900px;
  margin-inline: auto;
}
.cta-form-section__head {
  text-align: center;
  margin-bottom: 3rem;
}
.cta-form-section__head h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.05;
}
.cta-form-section__head p {
  color: var(--muted-fg);
  margin-top: .75rem;
  font-size: 1.05rem;
}

/* ============================================================
   INSTALLATION SECTION
   ============================================================ */
.install-section {
  padding-block: 6rem;
  background: #fff;
}
.install-grid {
  display: grid;
  gap: 3rem;
  align-items: center;
}
.install-grid__img-wrap {
  position: relative;
  aspect-ratio: 4/3;
  overflow: hidden;
}
.install-grid__img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.install-grid__img-badge {
  position: absolute;
  bottom: 1.5rem;
  left: 1.5rem;
  background: var(--primary);
  color: #fff;
  padding: .75rem 1.25rem;
  font-size: .7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .15em;
}
.install-grid__body h2 {
  font-size: clamp(2rem, 3.5vw, 2.8rem);
  margin-bottom: 1rem;
}
.install-grid__body p {
  color: var(--muted-fg);
  line-height: 1.8;
  margin-bottom: 1rem;
}
.install-checklist {
  display: grid;
  gap: .75rem;
  margin: 1.75rem 0 2rem;
}
.install-checklist li {
  display: flex;
  align-items: flex-start;
  gap: .75rem;
  font-size: .95rem;
}
.install-checklist .check-icon {
  flex-shrink: 0;
  margin-top: .1rem;
}

/* Full-width quote form override */
.quote-form--full {
  grid-template-columns: 1fr 1fr;
}
.quote-form--full input,
.quote-form--full textarea {
  background: #fff;
  color: var(--fg);
  border: 1px solid var(--border);
}
.quote-form--full input::placeholder,
.quote-form--full textarea::placeholder { color: var(--muted-fg); }
.quote-form--full input:focus,
.quote-form--full textarea:focus { box-shadow: 0 0 0 2px var(--primary); border-color: var(--primary); }
.quote-form--full textarea {
  grid-column: 1 / -1;
  min-height: 7rem;
}
.quote-form--full .btn {
  grid-column: 1 / -1;
  padding: 1.1rem;
  font-size: .85rem;
}

/* ============================================================
   FLOATING CALL BUTTON - Desktop (vibrating circle)
   ============================================================ */
@keyframes vibrate {
  0%   { transform: rotate(0deg); }
  15%  { transform: rotate(-12deg); }
  30%  { transform: rotate(12deg); }
  45%  { transform: rotate(-8deg); }
  60%  { transform: rotate(8deg); }
  75%  { transform: rotate(-4deg); }
  90%  { transform: rotate(4deg); }
  100% { transform: rotate(0deg); }
}
@keyframes pulse-ring {
  0%   { transform: scale(1);    opacity: .6; }
  100% { transform: scale(1.65); opacity: 0; }
}

.float-call-desktop {
  display: none;
  position: fixed;
  bottom: 2.5rem;
  right: 2.5rem;
  z-index: 999;
  flex-direction: column;
  align-items: center;
  gap: .5rem;
}
.float-call-desktop__ring {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse-ring 1.6s ease-out infinite;
  pointer-events: none;
}
.float-call-desktop__btn {
  position: relative;
  width: 3.75rem;
  height: 3.75rem;
  border-radius: 50%;
  background: var(--primary);
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 6px 24px rgba(233,113,37,.5);
  animation: vibrate 1.8s ease-in-out infinite;
  animation-delay: .4s;
  transition: transform .2s, box-shadow .2s;
  text-decoration: none;
}
.float-call-desktop__btn:hover {
  animation: none;
  transform: scale(1.1);
  box-shadow: 0 8px 32px rgba(233,113,37,.65);
}
.float-call-desktop__btn svg {
  width: 1.5rem;
  height: 1.5rem;
  stroke: #fff;
  fill: none;
}
.float-call-desktop__label {
  font-size: .65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--ink);
  background: #fff;
  padding: .25rem .6rem;
  border-radius: 2rem;
  box-shadow: 0 2px 8px rgba(0,0,0,.12);
  white-space: nowrap;
}

/* ============================================================
   FLOATING CALL BAR - Mobile (full-width, appears on scroll)
   ============================================================ */
.float-call-mobile {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 999;
  transform: translateY(100%);
  transition: transform .35s cubic-bezier(.16,1,.3,1);
}
.float-call-mobile.visible {
  transform: translateY(0);
}
.float-call-mobile__btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  width: 100%;
  background: var(--primary);
  color: #fff;
  padding: 1.1rem 1.5rem;
  font-size: .875rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .12em;
  text-decoration: none;
  border: none;
  cursor: pointer;
}
.float-call-mobile__btn svg {
  width: 1.1rem;
  height: 1.1rem;
  stroke: #fff;
  fill: none;
  flex-shrink: 0;
}

/* ============================================================
   PAGE HERO (inner pages)
   ============================================================ */
.page-hero {
  background: var(--ink);
  color: #fff;
  padding: 5rem var(--px) 6rem;
}
.page-hero h1 {
  font-size: clamp(2.8rem, 6vw, 4.5rem);
  max-width: 40rem;
  line-height: 1.02;
  margin-top: 1rem;
}
.page-hero p {
  color: var(--white-70);
  margin-top: 1.5rem;
  max-width: 40rem;
  font-size: 1.1rem;
  line-height: 1.75;
}

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-intro {
  display: grid;
  gap: 3rem;
  align-items: center;
  padding-block: 5rem;
}
.about-intro__img-wrap {
  aspect-ratio: 4/3;
  overflow: hidden;
}
.about-intro__img { width: 100%; height: 100%; object-fit: cover; }
.about-intro p {
  color: rgba(26,30,43,.75);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-top: 1rem;
}
.about-intro p + p { margin-top: .75rem; }

.stats-band {
  background: var(--ink);
  color: #fff;
  padding: 5rem var(--px);
}
.stats-grid {
  display: grid;
  gap: 2rem;
  text-align: center;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 3.5rem;
  color: var(--primary);
  font-weight: 600;
  line-height: 1;
}
.stat-label {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--white-70);
  margin-top: .5rem;
}

.process-section { padding-block: 5rem; }
.process-section h2 { text-align: center; font-size: clamp(2rem, 4vw, 3rem); margin-bottom: 2.5rem; }
.process-grid {
  display: grid;
  gap: 2rem;
  margin-top: 2.5rem;
}
.process-step { border-top: 2px solid var(--primary); padding-top: 1.25rem; }
.process-step__num {
  font-family: var(--font-display);
  font-size: 1.5rem;
  color: var(--primary);
  font-weight: 600;
}
.process-step h3 { font-size: 1.15rem; margin: .5rem 0 .4rem; }
.process-step p  { font-size: .875rem; color: var(--muted-fg); }
.process-section .btn-wrap { text-align: center; margin-top: 3rem; }

/* ============================================================
   PRODUCTS PAGE
   ============================================================ */
.products-list { padding-block: 5rem; }
.products-list__inner { display: grid; gap: 6rem; }
.product-row {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}
.product-row__img-wrap {
  aspect-ratio: 4/5;
  overflow: hidden;
  background: var(--muted);
}
.product-row__img { width: 100%; height: 100%; object-fit: cover; }
.product-row h2 { font-size: clamp(2rem, 3.5vw, 3rem); margin-bottom: 1rem; }
.product-row p  { color: rgba(26,30,43,.75); font-size: 1.05rem; line-height: 1.75; margin-bottom: 1.5rem; }
.product-features { display: grid; gap: .6rem; margin-bottom: 2rem; }
.product-feature {
  display: flex;
  align-items: center;
  gap: .75rem;
  font-size: .875rem;
  font-weight: 500;
}
.check-icon {
  width: 1.25rem; height: 1.25rem;
  border-radius: 50%;
  background: var(--primary);
  color: var(--primary-fg);
  display: grid;
  place-items: center;
  flex-shrink: 0;
}
.check-icon svg { width: .7rem; height: .7rem; }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-section { padding-block: 5rem; }
.contact-grid { display: grid; gap: 3rem; }
.contact-info h1 { font-size: clamp(2.8rem, 5vw, 3.8rem); margin-block: .75rem 1.5rem; }
.contact-info__lead { color: rgba(26,30,43,.75); line-height: 1.75; margin-bottom: 2.5rem; }
.contact-details { display: grid; gap: 1.25rem; }
.contact-detail {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.contact-detail a { transition: color .2s; }
.contact-detail a:hover { color: var(--primary); }
.detail-icon {
  width: 2.5rem; height: 2.5rem;
  display: grid;
  place-items: center;
  background: var(--primary);
  color: var(--primary-fg);
  flex-shrink: 0;
}
.detail-icon svg { width: 1rem; height: 1rem; }
.detail-label {
  font-size: .65rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--muted-fg);
}
.detail-value { font-weight: 600; margin-top: .1rem; font-size: .9rem; }

.contact-form-card {
  background: var(--ink);
  color: #fff;
  padding: 2.5rem;
  box-shadow: var(--shadow-elegant);
}
.contact-form-card h2 { font-size: 2rem; margin-bottom: .5rem; }
.contact-form-card .sub { color: var(--white-70); font-size: .875rem; margin-bottom: 1.75rem; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer {
  background: var(--ink);
  color: var(--white-80);
  margin-top: 0;
}
.footer-grid {
  display: grid;
  gap: 3rem;
  padding-block: 4rem;
}
.footer-brand p {
  font-size: .875rem;
  line-height: 1.7;
  max-width: 22rem;
  margin-top: 1rem;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: .75rem;
  margin-bottom: 1rem;
}
.footer-logo__icon {
  width: 2.5rem; height: 2.5rem;
  border-radius: .375rem;
  background: var(--primary);
  color: var(--primary-fg);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 600;
}
.footer-logo__name {
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: .08em;
  color: #fff;
}
.footer-col-title {
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .2em;
  color: var(--primary);
  font-weight: 700;
  margin-bottom: 1rem;
}
.footer-links { display: grid; gap: .75rem; }
.footer-links a {
  font-size: .875rem;
  transition: color .2s;
}
.footer-links a:hover { color: var(--primary); }
.footer-address { display: grid; gap: .75rem; }
.footer-address li {
  display: flex;
  align-items: flex-start;
  gap: .5rem;
  font-size: .875rem;
}
.footer-address svg { width: 1rem; height: 1rem; flex-shrink: 0; margin-top: .15rem; }
.footer-bottom {
  border-top: 1px solid var(--white-10);
}
.footer-bottom__inner {
  display: flex;
  flex-direction: column;
  gap: .5rem;
  padding-block: 1.5rem;
  font-size: .7rem;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: rgba(255,255,255,.4);
}

/* ============================================================
   ANIMATIONS
   ============================================================ */
@keyframes fade-up {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up {
  animation: fade-up .7s cubic-bezier(.16,1,.3,1) both;
}
.fade-up--delay { animation-delay: .15s; }

/* ============================================================
   RESPONSIVE — Tablet (≥ 640px)
   ============================================================ */
@media (min-width: 640px) {
  .product-grid { grid-template-columns: 1fr 1fr; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .testimonials-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(3, 1fr); }
  .process-grid { grid-template-columns: repeat(3, 1fr); }
  .cta-actions { flex-direction: row; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-bottom__inner { flex-direction: row; justify-content: space-between; }
}

/* ============================================================
   RESPONSIVE — Desktop (≥ 768px)
   ============================================================ */
@media (min-width: 768px) {
  .nav-toggle { display: none; }
  .float-call-desktop { display: flex; }

  .nav-desktop { display: flex; }
  .header-actions { display: flex; }

  .hero__inner { grid-template-columns: 7fr 5fr; }

  .products-section .section__header { flex-direction: row; align-items: flex-end; justify-content: space-between; }

  .why-grid { grid-template-columns: 1fr 2fr; }

  .testimonials-grid { grid-template-columns: repeat(3, 1fr); }

  .cta-banner { grid-template-columns: 1fr 1fr; align-items: center; padding: 4rem; }
  .cta-actions { justify-content: flex-end; }

  .about-intro { grid-template-columns: 1fr 1fr; }
  .install-grid { grid-template-columns: 1fr 1fr; }
  .about-intro--reverse > *:first-child { order: 2; }

  .product-row { grid-template-columns: 1fr 1fr; }
  .product-row--alt > *:first-child { order: 2; }

  .contact-grid { grid-template-columns: 2fr 3fr; }

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

/* ============================================================
   RESPONSIVE — Wide (≥ 1024px)
   ============================================================ */
@media (min-width: 1024px) {
  .product-grid { grid-template-columns: repeat(4, 1fr); }
  .footer-grid { grid-template-columns: 2fr 1fr 1fr; }
}