/* ==========================================================================
   Modern Tiling and Waterproofing — Brand Stylesheet
   ========================================================================== */

:root {
  /* Brand palette — derived from company logo & business card */
  --brand-dark: #0b2d5a;        /* deep navy — card back, footer, header-on-scroll */
  --brand-primary: #163b6b;     /* logo navy — headings, primary buttons */
  --brand-primary-700: #0e2c53; /* hover state for primary */
  --brand-accent: #4fa2ce;      /* logo sky blue — CTAs, links, highlights */
  --brand-accent-600: #2f84b3;  /* accent hover */
  --brand-light: #f4f7fa;       /* soft off-white section backgrounds */
  --brand-surface: #ffffff;
  --brand-text: #16233a;        /* near-navy body text */
  --brand-muted: #5c6b80;       /* secondary / supporting text */
  --brand-border: #e2e8f0;

  --font-display: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;

  --container-max: 1240px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(11, 45, 90, 0.08);
  --shadow-md: 0 8px 24px rgba(11, 45, 90, 0.10);
  --shadow-lg: 0 20px 48px rgba(11, 45, 90, 0.16);
  --transition: 220ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.01ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; scroll-behavior: auto !important; }
}

body {
  font-family: var(--font-body);
  color: var(--brand-text);
  background: var(--brand-surface);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 32px;
}

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--brand-primary);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

h2.section-title { font-size: clamp(1.9rem, 3.2vw, 2.6rem); }
h3 { font-size: 1.25rem; }

p { color: var(--brand-muted); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--brand-accent-600);
  margin-bottom: 14px;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 22px;
  height: 3px;
  background: var(--brand-accent);
  border-radius: 2px;
}

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head p { margin-top: 14px; font-size: 1.05rem; }

section { position: relative; }
.section-pad { padding: 100px 0; }
@media (max-width: 768px) { .section-pad { padding: 72px 0; } }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 15px 30px;
  border-radius: var(--radius-sm);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition), border-color var(--transition);
  white-space: nowrap;
}
.btn svg { width: 18px; height: 18px; flex-shrink: 0; transition: transform var(--transition); }
.btn:hover svg { transform: translateX(3px); }

.btn-primary {
  background: var(--brand-accent);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(79, 162, 206, 0.35);
}
.btn-primary:hover { background: var(--brand-accent-600); transform: translateY(-2px); box-shadow: 0 14px 30px rgba(79, 162, 206, 0.42); }

.btn-outline {
  background: transparent;
  color: var(--brand-surface);
  border: 1.5px solid rgba(255, 255, 255, 0.55);
}
.btn-outline:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; transform: translateY(-2px); }

.btn-dark {
  background: var(--brand-primary);
  color: #fff;
}
.btn-dark:hover { background: var(--brand-primary-700); transform: translateY(-2px); }

.btn-ghost-dark {
  background: transparent;
  color: var(--brand-primary);
  border: 1.5px solid var(--brand-border);
}
.btn-ghost-dark:hover { border-color: var(--brand-primary); background: var(--brand-light); }

/* ---------- Header ---------- */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: padding var(--transition), background var(--transition), box-shadow var(--transition);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.logo-link {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255, 255, 255, 0.96);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: padding var(--transition);
}
.logo-link img { height: 38px; width: auto; transition: height var(--transition); }

.main-nav { display: flex; align-items: center; gap: 4px; }
.main-nav a {
  font-family: var(--font-display);
  font-size: 0.92rem;
  font-weight: 600;
  color: #eef4fa;
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  transition: background var(--transition), color var(--transition);
  position: relative;
}
.main-nav a:hover, .main-nav a.active { background: rgba(255, 255, 255, 0.12); }

.header-actions { display: flex; align-items: center; gap: 18px; }
.header-phone {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  color: #eef4fa;
}
.header-phone svg { width: 16px; height: 16px; color: var(--brand-accent); }

.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  z-index: 1100;
}
.menu-toggle span {
  display: block;
  height: 2px;
  width: 24px;
  background: #fff;
  margin: 0 auto;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.menu-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.menu-toggle.active span:nth-child(2) { opacity: 0; }
.menu-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-nav { display: none; }

/* Header state: transparent over hero */
.header.at-top { background: transparent; }
.header.at-top .main-nav a { color: #fff; }

/* Header state: scrolled */
.header.scrolled {
  background: rgba(11, 45, 90, 0.92);
  backdrop-filter: blur(10px);
  box-shadow: 0 4px 24px rgba(11, 45, 90, 0.18);
  padding: 12px 0;
}
.header.scrolled .logo-link { padding: 6px 14px; }
.header.scrolled .logo-link img { height: 32px; }

@media (max-width: 960px) {
  .main-nav { display: none; }
  .header-phone { display: none; }
  .menu-toggle { display: flex; }
  .header.at-top { background: rgba(11, 45, 90, 0.92); backdrop-filter: blur(10px); }

  .mobile-nav {
    display: flex;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100vw;
    height: 100vh;
    background: var(--brand-dark);
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: transform var(--transition), opacity var(--transition), visibility var(--transition);
    z-index: 1050;
  }
  .mobile-nav.active { transform: translateY(0); opacity: 1; visibility: visible; }
  .mobile-nav a {
    font-family: var(--font-display);
    font-size: 1.4rem;
    font-weight: 700;
    color: #fff;
    padding: 14px 0;
  }
  .mobile-nav .btn { margin-top: 20px; }
  .mobile-nav-contact { margin-top: 28px; color: rgba(255,255,255,0.75); font-size: 0.95rem; text-align: center; }
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  color: #fff;
  overflow: hidden;
}
.hero-media {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: center 20%;
}
.hero-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11,29,58,0.78) 0%, rgba(11,29,58,0.62) 45%, rgba(9,24,48,0.88) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 120px;
  max-width: 720px;
}
.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 8px 16px;
  border-radius: 100px;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 26px;
}
.hero-tag .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-accent); }

.hero h1 {
  color: #fff;
  font-size: clamp(2.4rem, 5.2vw, 4rem);
  margin-bottom: 22px;
}
.hero h1 em { color: var(--brand-accent); font-style: normal; }

.hero-sub {
  font-size: 1.15rem;
  color: rgba(255,255,255,0.86);
  max-width: 560px;
  margin-bottom: 38px;
}

.hero-ctas { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-scroll {
  position: absolute;
  bottom: 34px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,0.7);
  font-size: 0.75rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-family: var(--font-display);
}
.hero-scroll .line { width: 1px; height: 34px; background: linear-gradient(180deg, rgba(255,255,255,0.8), transparent); animation: scrollLine 2s ease-in-out infinite; }
@keyframes scrollLine { 0%, 100% { opacity: 0.3; } 50% { opacity: 1; } }

/* ---------- Trust strip ---------- */
.trust-strip {
  background: var(--brand-primary);
  padding: 30px 0;
}
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.trust-item {
  display: flex;
  align-items: center;
  gap: 14px;
  color: #fff;
}
.trust-item svg { width: 26px; height: 26px; color: var(--brand-accent); flex-shrink: 0; }
.trust-item span { font-family: var(--font-display); font-weight: 600; font-size: 0.95rem; }

@media (max-width: 860px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ---------- Services ---------- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::before {
  content: "";
  position: absolute;
  top: 0; left: 0;
  width: 4px; height: 0;
  background: var(--brand-accent);
  transition: height var(--transition);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.service-card:hover::before { height: 100%; }

.service-icon {
  width: 54px; height: 54px;
  border-radius: var(--radius-md);
  background: var(--brand-light);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 22px;
  transition: background var(--transition);
}
.service-card:hover .service-icon { background: var(--brand-accent); }
.service-icon svg { width: 26px; height: 26px; color: var(--brand-primary); transition: color var(--transition); }
.service-card:hover .service-icon svg { color: #fff; }

.service-card h3 { margin-bottom: 10px; }
.service-card p { font-size: 0.96rem; }

@media (max-width: 960px) { .services-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .services-grid { grid-template-columns: 1fr; } }

/* ---------- Portfolio ---------- */
.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  grid-auto-rows: 220px;
  gap: 18px;
}
.portfolio-item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  cursor: pointer;
  grid-column: span 3;
  grid-row: span 1;
}
.portfolio-item.tall { grid-row: span 2; }
.portfolio-item.wide { grid-column: span 4; }
.portfolio-item.narrow { grid-column: span 2; }

.portfolio-item img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 500ms ease;
}
.portfolio-item:hover img { transform: scale(1.06); }

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(11,29,58,0.88) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 22px;
  opacity: 0;
  transition: opacity var(--transition);
}
.portfolio-item:hover .portfolio-overlay { opacity: 1; }
.portfolio-overlay .cat {
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--brand-accent);
  margin-bottom: 6px;
}
.portfolio-overlay h4 { color: #fff; font-family: var(--font-display); font-size: 1.02rem; font-weight: 700; }
.portfolio-expand {
  position: absolute; top: 16px; right: 16px;
  width: 36px; height: 36px;
  border-radius: 50%;
  background: rgba(255,255,255,0.9);
  display: flex; align-items: center; justify-content: center;
  opacity: 0;
  transform: scale(0.8);
  transition: opacity var(--transition), transform var(--transition);
}
.portfolio-item:hover .portfolio-expand { opacity: 1; transform: scale(1); }
.portfolio-expand svg { width: 16px; height: 16px; color: var(--brand-primary); }

@media (max-width: 860px) {
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 260px; }
  .portfolio-item, .portfolio-item.wide, .portfolio-item.narrow { grid-column: span 1; grid-row: span 1; }
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(9, 20, 40, 0.94);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
  padding: 24px;
}
.lightbox.active { opacity: 1; visibility: visible; }
.lightbox-inner { max-width: 1000px; width: 100%; text-align: center; }
.lightbox img { max-height: 78vh; margin: 0 auto; border-radius: var(--radius-md); box-shadow: var(--shadow-lg); }
.lightbox-caption { color: #fff; margin-top: 18px; font-family: var(--font-display); }
.lightbox-caption .cat { color: var(--brand-accent); font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; display: block; margin-bottom: 6px; }
.lightbox-close, .lightbox-prev, .lightbox-next {
  position: absolute;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.25);
  color: #fff;
  width: 46px; height: 46px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition);
}
.lightbox-close:hover, .lightbox-prev:hover, .lightbox-next:hover { background: rgba(255,255,255,0.22); }
.lightbox-close { top: 24px; right: 24px; }
.lightbox-prev { left: 24px; top: 50%; transform: translateY(-50%); }
.lightbox-next { right: 24px; top: 50%; transform: translateY(-50%); }
.lightbox-close svg, .lightbox-prev svg, .lightbox-next svg { width: 20px; height: 20px; }
@media (max-width: 640px) {
  .lightbox-prev, .lightbox-next { width: 40px; height: 40px; }
  .lightbox-prev { left: 8px; } .lightbox-next { right: 8px; }
  .lightbox-close { top: 12px; right: 12px; }
}

/* ---------- Why Choose Us ---------- */
.why-section { background: var(--brand-light); }
.why-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.why-media { position: relative; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-lg); }
.why-media img { width: 100%; height: 560px; object-fit: cover; }
.why-badge {
  position: absolute;
  bottom: 24px; left: 24px;
  background: rgba(11,29,58,0.85);
  backdrop-filter: blur(6px);
  color: #fff;
  padding: 14px 20px;
  border-radius: var(--radius-md);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 10px;
}
.why-badge svg { width: 18px; height: 18px; color: var(--brand-accent); }

.why-list { display: flex; flex-direction: column; gap: 22px; margin-top: 8px; }
.why-item { display: flex; gap: 16px; }
.why-icon {
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: 10px;
  background: var(--brand-primary);
  display: flex; align-items: center; justify-content: center;
}
.why-icon svg { width: 20px; height: 20px; color: var(--brand-accent); }
.why-item h4 { font-family: var(--font-display); color: var(--brand-primary); font-size: 1.02rem; margin-bottom: 4px; }
.why-item p { font-size: 0.95rem; }

@media (max-width: 900px) {
  .why-grid { grid-template-columns: 1fr; gap: 40px; }
  .why-media img { height: 380px; }
}

/* ---------- About ---------- */
.about-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 64px;
  align-items: center;
}
.about-copy p { font-size: 1.05rem; margin-bottom: 18px; }
.about-copy p:last-child { margin-bottom: 0; }
.about-owner {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid var(--brand-border);
  display: flex;
  align-items: center;
  gap: 14px;
}
.about-owner-initial {
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
}
.about-owner-name { font-family: var(--font-display); font-weight: 700; color: var(--brand-primary); font-size: 0.98rem; }
.about-owner-role { font-size: 0.85rem; color: var(--brand-muted); }

.about-photo-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 16px;
}
.about-photo-grid img { border-radius: var(--radius-md); object-fit: cover; width: 100%; height: 100%; box-shadow: var(--shadow-md); }
.about-photo-grid .stack { display: grid; gap: 16px; }
.about-photo-main { height: 480px; }
.about-photo-small { height: 232px; }

@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-photo-main { height: 320px; }
  .about-photo-small { height: 180px; }
}

/* ---------- Process ---------- */
.process-section { background: var(--brand-primary); color: #fff; }
.process-section .eyebrow { color: var(--brand-accent); }
.process-section .section-head h2, .process-section .section-head p { color: #fff; }
.process-section .section-head p { color: rgba(255,255,255,0.75); }

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 4px;
}
.process-step {
  padding: 34px 28px;
  border-left: 1px solid rgba(255,255,255,0.15);
  position: relative;
}
.process-step:first-child { border-left: none; }
.process-num {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 800;
  color: rgba(255,255,255,0.18);
  margin-bottom: 14px;
  line-height: 1;
}
.process-step h4 { font-family: var(--font-display); font-size: 1.08rem; color: #fff; margin-bottom: 10px; }
.process-step p { color: rgba(255,255,255,0.72); font-size: 0.94rem; }

@media (max-width: 900px) {
  .process-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .process-step { border-left: none; border-top: 1px solid rgba(255,255,255,0.15); padding: 24px 6px; }
  .process-step:first-child { border-top: none; }
}
@media (max-width: 560px) { .process-grid { grid-template-columns: 1fr; } }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(120deg, var(--brand-dark) 0%, var(--brand-primary) 100%);
  color: #fff;
  padding: 90px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-banner::before {
  content: "";
  position: absolute;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(79,162,206,0.25) 0%, transparent 70%);
  top: -300px; right: -150px;
}
.cta-banner h2 { color: #fff; font-size: clamp(1.8rem, 3.5vw, 2.6rem); margin-bottom: 16px; position: relative; }
.cta-banner p { color: rgba(255,255,255,0.78); font-size: 1.08rem; max-width: 520px; margin: 0 auto 34px; position: relative; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; position: relative; }

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 56px;
}
.contact-info-card {
  background: var(--brand-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 44px 36px;
}
.contact-info-card h3 { color: #fff; margin-bottom: 12px; }
.contact-info-card > p { color: rgba(255,255,255,0.75); margin-bottom: 30px; font-size: 0.96rem; }

.contact-detail { display: flex; gap: 16px; margin-bottom: 24px; }
.contact-detail:last-of-type { margin-bottom: 0; }
.contact-detail-icon {
  flex-shrink: 0;
  width: 42px; height: 42px;
  border-radius: 10px;
  background: rgba(255,255,255,0.1);
  display: flex; align-items: center; justify-content: center;
}
.contact-detail-icon svg { width: 19px; height: 19px; color: var(--brand-accent); }
.contact-detail h4 { font-family: var(--font-display); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.06em; color: rgba(255,255,255,0.6); margin-bottom: 4px; font-weight: 600; }
.contact-detail p, .contact-detail a { color: #fff; font-size: 0.98rem; font-weight: 500; }
.contact-detail a:hover { color: var(--brand-accent); }

.contact-form-card {
  background: var(--brand-surface);
  border: 1px solid var(--brand-border);
  border-radius: var(--radius-lg);
  padding: 44px 40px;
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--brand-primary);
  margin-bottom: 8px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 13px 15px;
  border: 1.5px solid var(--brand-border);
  border-radius: var(--radius-sm);
  background: var(--brand-light);
  transition: border-color var(--transition), background var(--transition);
  font-size: 0.96rem;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--brand-accent);
  background: #fff;
}
.form-group textarea { min-height: 120px; resize: vertical; }
.form-error { color: #c0392b; font-size: 0.82rem; margin-top: 6px; display: none; }
.form-group.invalid input, .form-group.invalid select, .form-group.invalid textarea { border-color: #c0392b; }
.form-group.invalid .form-error { display: block; }

.form-submit { width: 100%; margin-top: 6px; }
.form-success {
  display: none;
  align-items: center;
  gap: 14px;
  background: #ecfaf3;
  border: 1px solid #b7ead2;
  color: #1c6d47;
  padding: 18px 20px;
  border-radius: var(--radius-md);
  margin-top: 20px;
  font-size: 0.95rem;
}
.form-success.active { display: flex; }
.form-success svg { width: 22px; height: 22px; flex-shrink: 0; }

@media (max-width: 900px) {
  .contact-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .contact-form-card { padding: 30px 22px; }
  .contact-info-card { padding: 32px 24px; }
}

/* ---------- Footer ---------- */
.footer { background: var(--brand-dark); color: rgba(255,255,255,0.75); padding: 70px 0 28px; }
.footer-top {
  display: grid;
  grid-template-columns: 1.3fr 0.8fr 1fr;
  gap: 48px;
  padding-bottom: 46px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand img { height: 40px; margin-bottom: 18px; }
.footer-brand p { color: rgba(255,255,255,0.6); font-size: 0.92rem; max-width: 320px; }
.footer-tagline { font-family: var(--font-display); color: var(--brand-accent); font-weight: 600; margin-top: 14px; font-size: 0.92rem; }

.footer-col h5 { font-family: var(--font-display); color: #fff; font-size: 0.88rem; letter-spacing: 0.06em; text-transform: uppercase; margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { color: rgba(255,255,255,0.65); font-size: 0.94rem; transition: color var(--transition); }
.footer-col a:hover { color: var(--brand-accent); }

.footer-bottom {
  padding-top: 26px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.5);
}

@media (max-width: 860px) {
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
}

/* ---------- Scroll to top ---------- */
.scroll-to-top {
  position: fixed;
  bottom: 28px; right: 28px;
  width: 48px; height: 48px;
  border-radius: 50%;
  background: var(--brand-primary);
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: opacity var(--transition), visibility var(--transition), transform var(--transition), background var(--transition);
  z-index: 900;
}
.scroll-to-top.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.scroll-to-top:hover { background: var(--brand-accent-600); }
.scroll-to-top svg { width: 20px; height: 20px; }

/* ---------- Reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 700ms ease, transform 700ms ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 90ms; }
.reveal-delay-2 { transition-delay: 180ms; }
.reveal-delay-3 { transition-delay: 270ms; }

/* ---------- Focus visibility (a11y) ---------- */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible {
  outline: 2.5px solid var(--brand-accent);
  outline-offset: 2px;
}

/* ---------- Misc ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--brand-accent);
  color: #fff;
  padding: 12px 20px;
  z-index: 3000;
  border-radius: 0 0 8px 0;
}
.skip-link:focus { left: 0; }

@media (max-width: 600px) {
  .container { padding: 0 20px; }
}