/* ==========================================================================
   Lisa Premium Charcoal — Global Stylesheet
   ========================================================================== */

:root {
  /* Colors — neutral corporate B2B palette (international trade standard) */
  --color-bg: #ffffff;
  --color-bg-alt: #f4f6f9;
  --color-surface: #ffffff;
  --color-surface-2: #eef1f5;
  --color-border: #ccd3dc;
  --color-text: #101828;
  --color-text-muted: #5c6472;
  --color-primary: #1a1a1a;
  --color-primary-dark: #000000;
  --color-gold: #dc9c2e;
  --color-navy: #0d0d0d;
  --color-navy-alt: #262626;
  --color-gradient: linear-gradient(135deg, #3f3f3f 0%, #1a1a1a 55%, #000000 100%);

  --font-heading: 'Poppins', 'Segoe UI', sans-serif;
  --font-body: 'Inter', 'Segoe UI', sans-serif;

  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-md: 0 10px 30px rgba(16, 24, 40, 0.08);
  --container-width: 1180px;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

/* ---------- Accessible focus ---------- */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
  border-radius: 4px;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.2rem, 5vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3.5vw, 2.4rem); }
h3 { font-size: 1.25rem; }

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

.container {
  width: 100%;
  max-width: var(--container-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section {
  padding: clamp(48px, 8vw, 96px) 0;
}

.section-alt { background: var(--color-bg-alt); }

.eyebrow {
  display: inline-block;
  color: var(--color-primary);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.section-head {
  max-width: 680px;
  margin: 0 0 44px;
}

.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head p { margin-top: 14px; font-size: 1.05rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 999px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease, color 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-gradient);
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.22);
}

.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3); }
.btn-primary:active { transform: translateY(0) scale(0.97); box-shadow: 0 6px 16px rgba(0, 0, 0, 0.22); }

.btn-outline {
  background: transparent;
  border-color: var(--color-border);
  color: var(--color-text);
}

.btn-outline:hover { border-color: var(--color-primary); color: var(--color-primary); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(0) scale(0.97); }

.btn-whatsapp {
  background: #1fae52;
  color: #fff;
  box-shadow: 0 8px 24px rgba(31, 174, 82, 0.3);
}

.btn-whatsapp:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(31, 174, 82, 0.4); }
.btn-whatsapp:active { transform: translateY(0) scale(0.97); }

.btn-block { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  min-width: 0;
  flex-shrink: 1;
}

.brand img {
  height: 52px;
  width: 52px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
  min-width: 0;
}

.brand-text strong {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-text span {
  font-size: 0.68rem;
  color: var(--color-primary);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-family: var(--font-heading);
  font-weight: 500;
  font-size: 0.94rem;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
  position: relative;
}

.main-nav a:hover,
.main-nav a[aria-current="page"] { color: var(--color-text); }

.main-nav a[aria-current="page"]::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -8px;
  height: 2px;
  background: var(--color-gradient);
  border-radius: 2px;
}

.header-actions { display: flex; align-items: center; gap: 12px; }

.header-actions .btn { padding: 11px 20px; font-size: 0.88rem; }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  width: 44px;
  height: 44px;
  color: var(--color-text);
  font-size: 1.3rem;
  cursor: pointer;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: clamp(64px, 12vw, 120px) 0 clamp(56px, 10vw, 90px);
  background:
    radial-gradient(ellipse at 20% 0%, rgba(0, 0, 0, 0.06), transparent 55%),
    radial-gradient(ellipse at 90% 20%, rgba(0, 0, 0, 0.04), transparent 45%),
    var(--color-bg);
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -10% -30% auto;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, rgba(0, 0, 0, 0.04), transparent 70%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.hero-copy p.lead { font-size: 1.1rem; margin: 20px 0 32px; max-width: 540px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 36px; }

.hero-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

.badge::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--color-primary);
}

.hero-visual {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-visual-card {
  position: relative;
  width: 100%;
  max-width: 420px;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-md);
}

.hero-visual-card img {
  width: 78%;
  filter: drop-shadow(0 20px 40px rgba(16, 24, 40, 0.18));
}

.hero-visual-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: var(--color-gradient);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  opacity: 0.5;
}

/* ---------- Trust strip ---------- */
.trust-strip {
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-bg-alt);
}

.trust-strip .container {
  display: flex;
  flex-wrap: wrap;
  gap: 20px 40px;
  justify-content: center;
  align-items: center;
  padding-top: 22px;
  padding-bottom: 22px;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 0.88rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.trust-item svg { width: 20px; height: 20px; color: var(--color-primary); flex-shrink: 0; }

/* ---------- Stats bar ---------- */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.stat-item { text-align: center; }

.stat-number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: clamp(2rem, 4vw, 2.8rem);
  background: var(--color-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  display: block;
  line-height: 1;
  margin-bottom: 10px;
}

.stat-label {
  font-family: var(--font-heading);
  font-size: 0.82rem;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ---------- Cards / grids ---------- */
.grid {
  display: grid;
  gap: 28px;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px;
  transition: transform 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(0, 0, 0, 0.3);
  box-shadow: var(--shadow-md);
}

.icon-tile {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-sm);
  background: var(--color-gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  flex-shrink: 0;
  transition: transform 0.35s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.icon-tile svg { width: 26px; height: 26px; color: #ffffff; }

.card:hover .icon-tile { transform: scale(1.08) rotate(-4deg); }

.card h3 { margin-bottom: 10px; }

.card p { font-size: 0.95rem; }

.card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 16px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--color-primary);
}

/* Product card */
.product-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.product-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.product-media {
  aspect-ratio: 16/11;
  background: var(--color-bg-alt);
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  border-bottom: 1px solid var(--color-border);
}

.product-media svg { width: 64px; height: 64px; color: var(--color-primary); opacity: 0.9; }

.product-tag {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(11,11,11,0.75);
  border: 1px solid var(--color-border);
  color: var(--color-gold);
  font-size: 0.72rem;
  font-family: var(--font-heading);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 999px;
}

.product-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }

.product-body p { font-size: 0.93rem; margin-bottom: 16px; }

.spec-list { margin: 0 0 20px; display: grid; gap: 8px; }

.spec-list li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.85rem;
  padding-bottom: 8px;
  border-bottom: 1px dashed var(--color-border);
  color: var(--color-text-muted);
}

.spec-list li span:last-child { color: var(--color-text); font-weight: 500; text-align: right; }

.product-body .btn { margin-top: auto; }

/* ---------- Gallery ---------- */
.gallery-tile {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px dashed var(--color-border);
  background: linear-gradient(135deg, var(--color-surface) 0%, var(--color-bg-alt) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 10px;
  padding: 20px;
  text-align: center;
  transition: border-color 0.3s ease, transform 0.3s ease;
}

.gallery-tile:hover { border-color: var(--color-primary); transform: translateY(-4px); }

.gallery-tile svg { width: 34px; height: 34px; color: var(--color-text-muted); opacity: 0.7; transition: opacity 0.3s ease, color 0.3s ease; }

.gallery-tile:hover svg { color: var(--color-primary); opacity: 1; }

.gallery-tile span {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  font-family: var(--font-heading);
  font-weight: 500;
}

.gallery-tile small {
  font-size: 0.68rem;
  color: var(--color-text-muted);
  opacity: 0.6;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.gallery-tile.has-photo {
  padding: 0;
  border-style: solid;
  align-items: stretch;
  justify-content: flex-end;
}

.gallery-tile.has-photo img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery-tile.has-photo:hover img { transform: scale(1.05); }

.gallery-tile.has-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.72) 0%, rgba(0, 0, 0, 0.15) 45%, transparent 70%);
}

.gallery-tile.has-photo .gallery-caption {
  position: relative;
  z-index: 1;
  width: 100%;
  padding: 16px;
  text-align: left;
}

.gallery-tile.has-photo .gallery-caption span { color: #ffffff; display: block; }
.gallery-tile.has-photo .gallery-caption small { color: rgba(255, 255, 255, 0.75); opacity: 1; }

/* ---------- Steps ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
  counter-reset: step;
}

/* 5-item step grid (homepage) — explicit columns avoid an orphaned last card */
.steps-5 { grid-template-columns: 1fr; }
@media (min-width: 640px) { .steps-5 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1180px) { .steps-5 { grid-template-columns: repeat(5, 1fr); } }

.step {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 24px;
}

.step-number {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-gradient);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
}

.step h3 { margin-bottom: 8px; font-size: 1.05rem; }
.step p { font-size: 0.9rem; }

/* ---------- Map / regions ---------- */
.region-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 18px;
}

.region-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  align-items: flex-start;
  gap: 14px;
}

.region-item svg { width: 26px; height: 26px; color: var(--color-primary); flex-shrink: 0; margin-top: 2px; }
.region-item h3 { font-size: 1rem; margin-bottom: 4px; }
.region-item p { font-size: 0.85rem; }

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(120deg, var(--color-navy), var(--color-navy-alt) 60%);
  border: 1px solid var(--color-navy);
  border-radius: var(--radius-lg);
  padding: clamp(36px, 6vw, 60px);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 100% 0%, rgba(220, 156, 46, 0.25), transparent 60%);
}

.cta-banner > * { position: relative; z-index: 1; }

.cta-banner h2 { margin-bottom: 8px; color: #ffffff; }
.cta-banner p { max-width: 460px; color: rgba(255, 255, 255, 0.72); }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-banner .btn-outline { border-color: rgba(255, 255, 255, 0.3); color: #ffffff; }
.cta-banner .btn-outline:hover { border-color: #ffffff; color: #ffffff; }

/* ---------- FAQ ---------- */
.faq-list { display: grid; gap: 14px; max-width: 800px; }

.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.faq-question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1rem;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  cursor: pointer;
}

.faq-question svg { width: 18px; height: 18px; color: var(--color-primary); flex-shrink: 0; transition: transform 0.25s ease; }

.faq-item[open] .faq-question svg { transform: rotate(45deg); }

.faq-answer { padding: 0 24px 20px; font-size: 0.92rem; color: var(--color-text-muted); }

/* ---------- Timeline (About) ---------- */
.value-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 24px; }

/* ---------- Forms ---------- */
.form-grid { display: grid; gap: 18px; }

.form-row-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.field label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.86rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 13px 14px;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color 0.2s ease;
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.field input:user-invalid,
.field textarea:user-invalid {
  border-color: #e0483f;
}

.field textarea { resize: vertical; min-height: 130px; }

.form-note { font-size: 0.8rem; color: var(--color-text-muted); margin-top: 4px; }

/* ---------- Contact page layout ---------- */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 40px;
  align-items: start;
}

.contact-info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 30px;
}

.contact-line {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
}

.contact-line:last-child { border-bottom: none; }

.contact-line svg { width: 22px; height: 22px; color: var(--color-primary); margin-top: 2px; flex-shrink: 0; }

.contact-line strong { display: block; font-family: var(--font-heading); font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.06em; color: var(--color-primary); margin-bottom: 4px; }

.contact-line a, .contact-line span { color: var(--color-text); font-size: 0.98rem; }

.map-embed {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  margin-top: 24px;
}

.map-embed iframe { width: 100%; height: 260px; border: 0; display: block; filter: grayscale(0.2); }

/* ---------- Breadcrumb / page header ---------- */
.page-header {
  padding: clamp(48px, 8vw, 80px) 0 40px;
  background:
    radial-gradient(ellipse at 15% 0%, rgba(0, 0, 0, 0.05), transparent 55%),
    var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-bottom: 18px;
}

.breadcrumb a { color: var(--color-text-muted); }
.breadcrumb a:hover { color: var(--color-primary); }
.breadcrumb span { color: var(--color-text); }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 48px;
}

.footer-brand .brand { margin-bottom: 16px; }

.footer-brand p { font-size: 0.9rem; max-width: 320px; }

.footer-social { display: flex; gap: 10px; margin-top: 20px; }

.footer-social a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  display: flex; align-items: center; justify-content: center;
  transition: background 0.2s ease, border-color 0.2s ease;
}

.footer-social a:hover { background: var(--color-primary); border-color: var(--color-primary); }
.footer-social svg { width: 17px; height: 17px; }

.footer-col h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 18px;
}

.footer-col ul { display: grid; gap: 12px; }
.footer-col a { font-size: 0.92rem; color: var(--color-text-muted); }
.footer-col a:hover { color: var(--color-text); }

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 22px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 0.82rem;
  color: var(--color-text-muted);
}

/* ---------- Floating WhatsApp ---------- */
.whatsapp-float {
  position: fixed;
  bottom: 22px;
  right: 22px;
  z-index: 200;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #1fae52;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 30px rgba(31, 174, 82, 0.45);
  transition: transform 0.2s ease;
}

.whatsapp-float:hover { transform: scale(1.08); }
.whatsapp-float svg { width: 28px; height: 28px; color: #fff; }

/* ---------- Motion / scroll reveal ---------- */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.7s cubic-bezier(0.16, 1, 0.3, 1), transform 0.7s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .reveal.is-visible { opacity: 1; transform: translateY(0); }

  .reveal-stagger > * {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1), transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  }

  .reveal-stagger.is-visible > * { opacity: 1; transform: translateY(0); }
}

/* ---------- Back to top ---------- */
.back-to-top {
  position: fixed;
  bottom: 92px;
  right: 22px;
  z-index: 199;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  box-shadow: var(--shadow-md);
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s, background 0.2s ease, border-color 0.2s ease;
}

.back-to-top.is-visible { opacity: 1; visibility: visible; transform: translateY(0); }
.back-to-top:hover { background: var(--color-primary); border-color: var(--color-primary); color: #ffffff; }
.back-to-top svg { width: 20px; height: 20px; }

/* ---------- Toast ---------- */
.toast {
  position: fixed;
  bottom: 22px;
  left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  padding: 14px 22px;
  border-radius: 999px;
  font-family: var(--font-heading);
  font-size: 0.86rem;
  font-weight: 500;
  box-shadow: var(--shadow-md);
  z-index: 400;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.3s ease, transform 0.3s ease, visibility 0.3s;
  display: flex;
  align-items: center;
  gap: 10px;
  max-width: calc(100vw - 32px);
  text-align: center;
}

.toast.is-visible { opacity: 1; visibility: visible; transform: translateX(-50%) translateY(0); }
.toast svg { width: 18px; height: 18px; color: var(--color-primary); flex-shrink: 0; }

/* ---------- Utilities ---------- */
.text-center { text-align: center; }
.mt-40 { margin-top: 40px; }

.text-gradient {
  background: var(--color-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.section-accent-line {
  display: block;
  width: 56px;
  height: 3px;
  border-radius: 3px;
  background: var(--color-gradient);
  margin-bottom: 16px;
}

.visually-hidden {
  position: absolute;
  left: -9999px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.visually-hidden:focus {
  position: fixed;
  left: 16px;
  top: 16px;
  width: auto;
  height: auto;
  z-index: 999;
  background: var(--color-primary);
  color: #ffffff;
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  font-family: var(--font-heading);
  font-weight: 600;
}

/* ---------- Responsive ---------- */
@media (max-width: 1180px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; align-items: center; justify-content: center; }
  .header-actions .btn-outline { display: none; }

  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; }
  .hero-visual-card { max-width: 280px; }

  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-2 { grid-template-columns: 1fr; }

  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
  .form-row-2 { grid-template-columns: 1fr; }
  .stats-bar { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; }
}

@media (max-width: 640px) {
  .grid-4, .grid-3 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-banner { flex-direction: column; align-items: flex-start; }
  .site-header .btn span.btn-label-full { display: none; }

  .brand img { height: 42px; width: 42px; }
  .brand-text span { display: none; }
  .header-actions { gap: 8px; }
  .header-actions .btn-primary { padding: 10px 16px; font-size: 0.82rem; }
}

@media (max-width: 380px) {
  .brand-text strong { font-size: 0.92rem; }
}

/* Mobile nav drawer */
.mobile-nav {
  position: fixed;
  inset: 0;
  background: rgba(255, 255, 255, 0.98);
  box-shadow: -10px 0 40px rgba(16, 24, 40, 0.15);
  z-index: 300;
  display: flex;
  flex-direction: column;
  padding: 24px;
  transform: translateX(100%);
  transition: transform 0.3s ease;
}

.mobile-nav.open { transform: translateX(0); }

.mobile-nav-top { display: flex; justify-content: space-between; align-items: center; margin-bottom: 40px; }

.mobile-nav ul { display: grid; gap: 6px; }

.mobile-nav a {
  display: block;
  font-family: var(--font-heading);
  font-size: 1.3rem;
  font-weight: 600;
  padding: 14px 4px;
  border-bottom: 1px solid var(--color-border);
}

@media (prefers-reduced-motion: no-preference) {
  .mobile-nav li {
    opacity: 0;
    transform: translateX(16px);
    transition: opacity 0.35s ease, transform 0.35s ease;
  }

  .mobile-nav.open li { opacity: 1; transform: translateX(0); }
  .mobile-nav.open li:nth-child(1) { transition-delay: 0.05s; }
  .mobile-nav.open li:nth-child(2) { transition-delay: 0.1s; }
  .mobile-nav.open li:nth-child(3) { transition-delay: 0.15s; }
  .mobile-nav.open li:nth-child(4) { transition-delay: 0.2s; }
  .mobile-nav.open li:nth-child(5) { transition-delay: 0.25s; }
}

.mobile-nav-actions { margin-top: auto; display: grid; gap: 12px; }

.mobile-nav-close {
  background: none; border: 1px solid var(--color-border); color: var(--color-text);
  width: 44px; height: 44px; border-radius: var(--radius-sm); font-size: 1.3rem; cursor: pointer;
}