/* ==========================================================================
   SkyVolt — Premium Cleantech Design System
   Brand identity & palette sampled from SkyVolt Brand Guidelines
   ========================================================================== */

:root {
  /* Brand Core */
  --sv-blue: #0A5EAE;
  --sv-blue-dark: #084A8A;
  --sv-blue-light: #2E7BC7;
  --sv-blue-subtle: #EBF4FC;
  --sv-navy: #0B2340;
  --sv-navy-deep: #061526;
  --sv-navy-card: #0F2C4E;
  
  /* Energetic Accents */
  --sv-orange: #F38A15;
  --sv-orange-dark: #D9760A;
  --sv-orange-light: #FFA23D;
  --sv-orange-subtle: #FFF4E5;
  --sv-green: #10B981;
  --sv-green-dark: #059669;
  --sv-green-subtle: #E6F9F2;

  /* Neutrals & Surfaces */
  --sv-ink: #0F172A;
  --sv-slate: #475569;
  --sv-slate-light: #64748B;
  --sv-border: #E2E8F0;
  --sv-border-light: #F1F5F9;
  --sv-surface: #FFFFFF;
  --sv-surface-tint: #F8FAFC;
  --sv-surface-blue: #F0F7FF;
  --sv-surface-orange: #FFF9F2;

  /* Premium Gradients */
  --sv-gradient-hero: linear-gradient(135deg, #F0F6FD 0%, #FAFBFD 50%, #FFF8EE 100%);
  --sv-gradient-navy: linear-gradient(160deg, #0B2340 0%, #061526 100%);
  --sv-gradient-navy-glass: linear-gradient(135deg, rgba(11, 35, 64, 0.96) 0%, rgba(6, 21, 38, 0.98) 100%);
  --sv-gradient-cta: linear-gradient(120deg, #0A5EAE 0%, #084A8A 100%);
  --sv-gradient-bolt: linear-gradient(120deg, #F38A15 0%, #E67807 100%);
  --sv-gradient-card: linear-gradient(180deg, #FFFFFF 0%, #FBFDFF 100%);

  /* Typography */
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-head: "Manrope", var(--font-body);

  /* Layout & Elevation */
  --max-width: 1220px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --radius-pill: 999px;
  
  --shadow-xs: 0 1px 3px rgba(11, 35, 64, 0.04);
  --shadow-sm: 0 4px 12px rgba(11, 35, 64, 0.05);
  --shadow-md: 0 10px 30px -4px rgba(11, 35, 64, 0.08), 0 4px 12px -2px rgba(11, 35, 64, 0.04);
  --shadow-lg: 0 22px 45px -8px rgba(11, 35, 64, 0.12), 0 8px 18px -4px rgba(11, 35, 64, 0.06);
  --shadow-xl: 0 30px 60px -12px rgba(11, 35, 64, 0.18);
  --shadow-bolt: 0 10px 25px rgba(243, 138, 21, 0.35);
  --shadow-blue: 0 10px 25px rgba(10, 94, 174, 0.28);
  
  --header-h: 78px;
}

/* ---------- Reset & Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--sv-ink);
  background: var(--sv-surface);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  line-height: 1.62;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
svg { max-width: 100%; vertical-align: middle; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  color: var(--sv-navy);
  line-height: 1.18;
  margin: 0 0 0.5em;
  letter-spacing: -0.015em;
}
h1 { font-weight: 800; }
h2 { font-weight: 800; letter-spacing: -0.02em; }
h3 { font-weight: 700; letter-spacing: -0.01em; }
h4 { font-weight: 700; }
p { margin: 0 0 1em; color: var(--sv-slate); }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; font-size: 1rem; }
:focus-visible { outline: 2.5px solid var(--sv-orange); outline-offset: 2px; }

.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}
.section { padding: 92px 0; }
.section-tight { padding: 58px 0; }
@media (max-width: 780px) {
  .section { padding: 64px 0; }
  .section-tight { padding: 42px 0; }
}

.bg-tint { background: var(--sv-surface-tint); }
.bg-blue-tint { background: var(--sv-surface-blue); }
.bg-navy { background: var(--sv-gradient-navy); color: #CBD5E1; }
.bg-navy h1, .bg-navy h2, .bg-navy h3, .bg-navy h4 { color: #FFFFFF; }
.bg-navy p { color: #94A3B8; }

/* ---------- Eyebrows & Badges ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--sv-orange-dark);
  background: var(--sv-surface-orange);
  padding: 7px 15px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
  border: 1px solid rgba(243, 138, 21, 0.2);
}
.eyebrow::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--sv-orange);
  box-shadow: 0 0 0 3px rgba(243, 138, 21, 0.25);
}
.eyebrow-blue {
  color: var(--sv-blue-dark);
  background: var(--sv-surface-blue);
  border-color: rgba(10, 94, 174, 0.18);
}
.eyebrow-blue::before {
  background: var(--sv-blue);
  box-shadow: 0 0 0 3px rgba(10, 94, 174, 0.25);
}
.bg-navy .eyebrow { 
  background: rgba(243,138,21,0.15); 
  color: var(--sv-orange-light); 
  border-color: rgba(243, 138, 21, 0.3);
}

.badge-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: var(--radius-pill);
}
.badge-blue { background: var(--sv-surface-blue); color: var(--sv-blue-dark); border: 1px solid rgba(10,94,174,0.15); }
.badge-orange { background: var(--sv-surface-orange); color: var(--sv-orange-dark); border: 1px solid rgba(243,138,21,0.2); }
.badge-green { background: var(--sv-green-subtle); color: var(--sv-green-dark); border: 1px solid rgba(16,185,129,0.25); }

.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head h2 { font-size: clamp(1.8rem, 3.2vw, 2.5rem); }
.section-head p { font-size: 1.08rem; line-height: 1.65; }
.section-head.align-left { margin: 0 0 48px; text-align: left; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  font-weight: 700;
  font-size: 0.98rem;
  padding: 13px 26px;
  border-radius: var(--radius-pill);
  border: 2px solid transparent;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  white-space: nowrap;
  cursor: pointer;
  text-decoration: none;
}
.btn-primary {
  background: var(--sv-gradient-bolt);
  color: #FFFFFF;
  box-shadow: var(--shadow-bolt);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 30px rgba(243, 138, 21, 0.45);
  background: linear-gradient(120deg, #FA9422 0%, #EA7A05 100%);
}
.btn-secondary {
  background: #FFFFFF;
  border-color: rgba(10, 94, 174, 0.3);
  color: var(--sv-blue);
  box-shadow: var(--shadow-xs);
}
.btn-secondary:hover {
  background: var(--sv-surface-blue);
  border-color: var(--sv-blue);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.bg-navy .btn-secondary {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.25);
  color: #FFFFFF;
}
.bg-navy .btn-secondary:hover {
  background: rgba(255,255,255,0.14);
  border-color: #FFFFFF;
}
.btn-white {
  background: #FFFFFF;
  color: var(--sv-blue-dark);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}
.btn-white:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.22);
}
.btn-whatsapp {
  background: #25D366;
  color: #FFFFFF;
  box-shadow: 0 8px 22px rgba(37, 211, 102, 0.35);
}
.btn-whatsapp:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(37, 211, 102, 0.48);
  background: #22BF5B;
}
.btn-block { width: 100%; }
.btn-lg { padding: 16px 32px; font-size: 1.05rem; }
.btn-sm { padding: 9px 18px; font-size: 0.88rem; }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ---------- Sticky Header with Glassmorphism ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(226, 232, 240, 0.85);
  transition: all 0.2s ease;
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand img {
  height: 38px;
  width: auto;
  transition: transform 0.2s ease;
}
.brand:hover img { transform: scale(1.02); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--sv-navy);
  position: relative;
  padding: 8px 4px;
  transition: color 0.15s ease;
}
.nav-links a:hover { color: var(--sv-blue); }
.nav-links a[aria-current="page"] {
  color: var(--sv-blue);
  font-weight: 700;
}
.nav-links a[aria-current="page"]::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 4px;
  right: 4px;
  height: 2.5px;
  background: var(--sv-blue);
  border-radius: var(--radius-pill);
}

.nav-links .dropdown { position: relative; }
.nav-links .dropdown > span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  font-weight: 600;
  color: var(--sv-navy);
  padding: 8px 4px;
  transition: color 0.15s ease;
}
.nav-links .dropdown:hover > span { color: var(--sv-blue); }
.nav-links .dropdown > span svg {
  width: 14px;
  height: 14px;
  transition: transform 0.2s ease;
}

@media (min-width: 981px) {
  .dropdown-panel {
    position: absolute;
    top: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%) translateY(8px);
    background: #FFFFFF;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-xl);
    border: 1px solid var(--sv-border);
    padding: 12px;
    min-width: 270px;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.2s ease;
  }
  .dropdown:hover .dropdown-panel, .dropdown:focus-within .dropdown-panel {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
  }
  .dropdown:hover > span svg { transform: rotate(180deg); }
}

.dropdown-panel a {
  display: flex;
  flex-direction: column;
  gap: 3px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  transition: background 0.15s ease;
}
.dropdown-panel a:hover { background: var(--sv-surface-blue); }
.dropdown-panel a strong { font-size: 0.92rem; color: var(--sv-navy); font-weight: 700; }
.dropdown-panel a small { color: var(--sv-slate-light); font-weight: 500; font-size: 0.78rem; }

.header-cta { display: flex; align-items: center; gap: 12px; }
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 6px;
  border-radius: var(--radius-sm);
}
.nav-toggle:hover { background: var(--sv-surface-tint); }
.nav-toggle svg { width: 26px; height: 26px; color: var(--sv-navy); }

@media (max-width: 980px) {
  .nav-links {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    height: calc(100vh - var(--header-h));
    height: calc(100dvh - var(--header-h));
    background: #FFFFFF;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 16px 24px 36px;
    overflow-y: auto;
    transform: translateY(-10px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
    border-bottom: 1px solid var(--sv-border);
  }
  .nav-links.open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
  }
  .nav-links a {
    padding: 15px 4px;
    border-bottom: 1px solid var(--sv-border-light);
    font-size: 1.05rem;
  }
  .dropdown-panel {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    padding: 0 0 0 14px;
    display: none;
  }
  .dropdown.open .dropdown-panel { display: flex; flex-direction: column; }
  .dropdown.open > span svg { transform: rotate(180deg); }
  .nav-toggle { display: block; }
  .header-cta .btn-secondary { display: none; }
}

/* ---------- Hero Section ---------- */
.hero {
  background: var(--sv-gradient-hero);
  position: relative;
  overflow: hidden;
  padding: 68px 0 96px;
}
.hero::before {
  content: "";
  position: absolute;
  left: -80px;
  top: 20%;
  width: 380px;
  height: 380px;
  background: radial-gradient(circle, rgba(10, 94, 174, 0.08), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero::after {
  content: "";
  position: absolute;
  right: -100px;
  top: -80px;
  width: 520px;
  height: 520px;
  background: radial-gradient(circle, rgba(243, 138, 21, 0.14), transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.hero h1 { font-size: clamp(2.3rem, 4.4vw, 3.5rem); letter-spacing: -0.025em; }
.hero-lead { font-size: 1.14rem; max-width: 560px; line-height: 1.65; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin: 32px 0 44px; }

.hero-stats-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  padding: 20px 24px;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(226, 232, 240, 0.9);
  box-shadow: var(--shadow-sm);
}
.hero-stats-strip .stat-item strong {
  display: block;
  font-family: var(--font-head);
  font-size: 1.55rem;
  color: var(--sv-navy);
  font-weight: 800;
  line-height: 1.1;
}
.hero-stats-strip .stat-item span {
  font-size: 0.78rem;
  color: var(--sv-slate-light);
  font-weight: 600;
}

.hero-media { position: relative; }
.hero-media img {
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  position: relative;
  z-index: 1;
  width: 100%;
}
.hero-media-badge {
  position: absolute;
  z-index: 2;
  left: -20px;
  bottom: -20px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--sv-border-light);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 14px;
}
.hero-media-badge .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: #10B981;
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.22);
  flex-shrink: 0;
}
.hero-media-badge strong { display: block; font-size: 0.92rem; color: var(--sv-navy); }
.hero-media-badge span { font-size: 0.78rem; color: var(--sv-slate-light); }

@media (max-width: 980px) {
  .hero-grid { grid-template-columns: 1fr; gap: 44px; }
  .hero-media { order: -1; max-width: 540px; margin: 0 auto; }
  .hero-media-badge { left: 10px; bottom: 10px; }
  .hero-stats-strip { grid-template-columns: repeat(2, 1fr); gap: 20px; }
}

/* Interior Page Hero */
.page-hero {
  background: var(--sv-gradient-hero);
  padding: 58px 0 68px;
  position: relative;
  overflow: hidden;
}
.page-hero .container { max-width: 920px; }
.page-hero h1 { font-size: clamp(2rem, 3.8vw, 2.85rem); }
.breadcrumb {
  display: flex;
  gap: 8px;
  align-items: center;
  font-size: 0.85rem;
  color: var(--sv-slate-light);
  margin-bottom: 22px;
  font-weight: 600;
}
.breadcrumb a:hover { color: var(--sv-blue); }
.breadcrumb span { opacity: 0.5; }

/* ---------- Stat Strip Global ---------- */
.stat-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: #FFFFFF;
  padding: 36px 32px;
  border-radius: var(--radius-xl);
  border: 1px solid var(--sv-border);
  box-shadow: var(--shadow-sm);
}
.stat-strip .stat { text-align: center; }
.stat-strip strong {
  display: block;
  font-family: var(--font-head);
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 800;
  color: var(--sv-navy);
  line-height: 1.1;
  margin-bottom: 6px;
}
.stat-strip span { font-size: 0.88rem; color: var(--sv-slate-light); font-weight: 600; }
@media (max-width: 700px) {
  .stat-strip { grid-template-columns: repeat(2, 1fr); gap: 32px 20px; padding: 26px 20px; }
}

/* ---------- Grid Layouts ---------- */
.grid { display: grid; gap: 28px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 980px) {
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .grid-3, .grid-4, .grid-2 { grid-template-columns: 1fr; }
}

/* ---------- Cards ---------- */
.card {
  background: var(--sv-gradient-card);
  border: 1px solid var(--sv-border);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  box-shadow: var(--shadow-xs);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease, border-color 0.2s ease;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(10, 94, 174, 0.25);
}
.card-icon {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--sv-surface-blue);
  color: var(--sv-blue);
  margin-bottom: 22px;
  border: 1px solid rgba(10, 94, 174, 0.12);
}
.card-icon svg { width: 26px; height: 26px; }
.card.icon-orange .card-icon {
  background: var(--sv-surface-orange);
  color: var(--sv-orange-dark);
  border-color: rgba(243, 138, 21, 0.15);
}
.card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.card p { margin-bottom: 0; font-size: 0.96rem; line-height: 1.6; }
.card-link {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  font-weight: 700;
  color: var(--sv-blue);
  font-size: 0.92rem;
}
.card-link svg { width: 15px; height: 15px; flex-shrink: 0; transition: transform 0.15s ease; }
.card:hover .card-link svg, .pillar-card:hover .card-link svg { transform: translateX(4px); }

/* ---------- Solution Pillars ---------- */
.pillar-card {
  border-radius: var(--radius-xl);
  padding: 38px 32px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--sv-border);
  background: #FFFFFF;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  height: 100%;
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease;
}
.pillar-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.pillar-card .tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}
.pillar-card.tag-private .tag { background: var(--sv-surface-blue); color: var(--sv-blue-dark); }
.pillar-card.tag-public .tag { background: var(--sv-surface-orange); color: var(--sv-orange-dark); }
.pillar-card.tag-employee .tag { background: #EAF7EF; color: #1A8A4A; }
.pillar-card h3 { font-size: 1.35rem; }
.pillar-card ul { margin: 20px 0 0; display: flex; flex-direction: column; gap: 12px; }
.pillar-card ul li {
  display: flex;
  gap: 12px;
  font-size: 0.94rem;
  color: var(--sv-slate);
  align-items: flex-start;
}
.pillar-card ul li svg {
  width: 18px;
  height: 18px;
  color: var(--sv-blue);
  flex-shrink: 0;
  margin-top: 2px;
}
.pillar-card .card-link { margin-top: auto; padding-top: 24px; }

/* ---------- Commercial Models Grid (Benefit-driven) ---------- */
.commercial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 40px;
}
@media (max-width: 900px) { .commercial-grid { grid-template-columns: 1fr; } }

.commercial-card {
  background: #FFFFFF;
  border: 1.5px solid var(--sv-border);
  border-radius: var(--radius-xl);
  padding: 38px 30px;
  display: flex;
  flex-direction: column;
  position: relative;
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease;
  box-shadow: var(--shadow-sm);
}
.commercial-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--sv-blue);
}
.commercial-card.featured {
  border-color: var(--sv-blue);
  background: linear-gradient(180deg, #F8FAFD 0%, #FFFFFF 100%);
  box-shadow: var(--shadow-md);
}
.commercial-badge {
  position: absolute;
  top: -14px;
  right: 28px;
  background: var(--sv-gradient-bolt);
  color: #FFFFFF;
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
  padding: 5px 14px;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 12px rgba(243, 138, 21, 0.35);
}
.commercial-card .model-tag {
  font-size: 0.75rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--sv-blue);
  margin-bottom: 8px;
}
.commercial-card h3 { font-size: 1.4rem; margin-bottom: 12px; }
.commercial-card .model-desc { font-size: 0.94rem; color: var(--sv-slate); margin-bottom: 24px; min-height: 48px; }
.commercial-features {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 30px;
  border-top: 1px solid var(--sv-border-light);
  padding-top: 20px;
}
.commercial-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.92rem;
  color: var(--sv-navy);
}
.commercial-features li svg {
  width: 17px;
  height: 17px;
  color: var(--sv-green-dark);
  flex-shrink: 0;
  margin-top: 3px;
}
.commercial-card .btn { margin-top: auto; }

/* ---------- WhatsApp Interactive Showcase ---------- */
.whatsapp-showcase {
  background: radial-gradient(120% 120% at 50% 0%, #172A46 0%, #0B1424 100%);
  border-radius: var(--radius-xl);
  padding: 48px 44px;
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.1);
  box-shadow: 0 24px 50px rgba(11, 20, 36, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.1);
  position: relative;
  overflow: hidden;
}
.whatsapp-showcase-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 960px) {
  .whatsapp-showcase { padding: 32px 20px; }
  .whatsapp-showcase-grid { grid-template-columns: 1fr; gap: 36px; }
}

.wa-step-card {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 18px 20px;
  margin-bottom: 12px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.03);
  border: 1.5px solid rgba(255, 255, 255, 0.08);
  cursor: pointer;
  text-align: left;
  width: 100%;
  transition: all 0.2s cubic-bezier(0.16, 1, 0.3, 1);
  font-family: inherit;
  color: inherit;
  outline: none;
}
.wa-step-card * {
  pointer-events: none;
}
.wa-step-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}
.wa-step-card.active {
  background: rgba(37, 211, 102, 0.1);
  border-color: rgba(37, 211, 102, 0.5);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.15);
}
.wa-step-badge {
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #25D366;
  background: rgba(37, 211, 102, 0.15);
  padding: 3px 9px;
  border-radius: var(--radius-pill);
  display: inline-block;
  margin-bottom: 6px;
}
.wa-step-card .wa-feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: #94A3B8;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.2s ease;
}
.wa-step-card.active .wa-feature-icon {
  background: #25D366;
  color: #0B1424;
}
.wa-step-card h4 {
  color: #FFFFFF;
  font-size: 1.02rem;
  margin-bottom: 4px;
  font-weight: 700;
}
.wa-step-card p {
  color: #94A3B8;
  font-size: 0.88rem;
  line-height: 1.45;
  margin-bottom: 0;
}
.wa-step-card.active p {
  color: #E2E8F0;
}

.wa-alt-box {
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px dashed rgba(255, 255, 255, 0.18);
  display: flex;
  gap: 12px;
  align-items: center;
}
.wa-alt-box svg {
  color: var(--sv-orange);
  width: 22px !important;
  height: 22px !important;
  min-width: 22px !important;
  max-width: 22px !important;
  flex-shrink: 0 !important;
}
.wa-alt-box p {
  color: #CBD5E1;
  font-size: 0.88rem;
  margin-bottom: 0;
  line-height: 1.45;
}
.wa-alt-box strong {
  color: #FFFFFF;
}

/* Modern iPhone Showcase Frame */
.wa-preview-frame {
  max-width: 320px;
  width: 100%;
  margin: 0 auto;
  background: #111E33;
  border-radius: 46px;
  padding: 11px;
  box-shadow: 0 32px 75px -15px rgba(0, 0, 0, 0.8), 0 0 0 1px rgba(255, 255, 255, 0.14);
  position: relative;
}
.wa-preview-header {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 2px 4px 8px;
  font-size: 0.76rem;
  font-weight: 700;
  color: #94A3B8;
  letter-spacing: 0.02em;
}
.wa-status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #25D366;
  box-shadow: 0 0 8px #25D366;
  flex-shrink: 0;
}
.wa-preview-screen {
  border-radius: 36px;
  overflow: hidden;
  background: #0B141A;
  position: relative;
  aspect-ratio: 866 / 1746;
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
}
.wa-preview-screen img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
  display: block;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

/* ---------- Filterable Projects / Track Record ---------- */
.filter-tab-bar {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 40px;
}
.filter-btn {
  padding: 10px 22px;
  border-radius: var(--radius-pill);
  background: #FFFFFF;
  border: 1.5px solid var(--sv-border);
  color: var(--sv-navy);
  font-weight: 700;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all 0.18s ease;
}
.filter-btn:hover {
  background: var(--sv-surface-blue);
  border-color: var(--sv-blue);
}
.filter-btn.active {
  background: var(--sv-blue);
  border-color: var(--sv-blue);
  color: #FFFFFF;
  box-shadow: var(--shadow-blue);
}

.project-card-v2 {
  background: #FFFFFF;
  border: 1px solid var(--sv-border);
  border-radius: var(--radius-lg);
  padding: 24px 22px;
  box-shadow: var(--shadow-xs);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
  display: flex;
  flex-direction: column;
}
.project-card-v2:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.project-category-tag {
  font-size: 0.72rem;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: .05em;
  color: var(--sv-blue);
  margin-bottom: 8px;
}
.project-card-v2 strong {
  display: block;
  font-size: 1.05rem;
  color: var(--sv-navy);
  margin-bottom: 8px;
}
.project-card-v2 .spec-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--sv-slate-light);
  background: var(--sv-surface-tint);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
  width: fit-content;
  margin-top: auto;
}

/* ---------- Feature Lists & Steps ---------- */
.feature-list { display: flex; flex-direction: column; gap: 26px; }
.feature-row { display: flex; gap: 18px; align-items: flex-start; }
.feature-row .card-icon { flex-shrink: 0; margin-bottom: 0; }
.feature-row h4 { font-size: 1.05rem; margin-bottom: 4px; color: var(--sv-navy); font-family: var(--font-head); font-weight: 700; }
.feature-row p { font-size: 0.94rem; margin-bottom: 0; }

.steps { counter-reset: step; display: flex; flex-direction: column; gap: 0; }
.step { display: grid; grid-template-columns: 52px 1fr; gap: 20px; position: relative; padding-bottom: 40px; }
.step:last-child { padding-bottom: 0; }
.step-num {
  width: 42px; height: 42px; border-radius: 50%; background: var(--sv-gradient-cta); color: #fff;
  display: flex; align-items: center; justify-content: center; font-weight: 800; font-family: var(--font-head);
  position: relative; z-index: 1; box-shadow: var(--shadow-blue);
}
.step::before {
  content: ""; position: absolute; left: 20px; top: 42px; bottom: -4px; width: 2px;
  background: var(--sv-border);
}
.step:last-child::before { display: none; }
.step h4 { margin-bottom: 6px; font-size: 1.08rem; }
.step p { margin-bottom: 0; font-size: 0.95rem; }

/* ---------- Full-Stack Layered Stack ---------- */
.stack { display: flex; flex-direction: column; gap: 14px; }
.stack-layer {
  border-radius: var(--radius-lg); padding: 24px 28px; border: 1.5px solid var(--sv-border);
  display: grid; grid-template-columns: 160px 1fr; gap: 20px; align-items: center;
  box-shadow: var(--shadow-xs);
  transition: transform 0.15s ease;
}
.stack-layer:hover { transform: translateX(4px); }
.stack-layer:nth-child(1) { background: var(--sv-surface-blue); border-color: rgba(10,94,174,0.2); }
.stack-layer:nth-child(2) { background: var(--sv-surface-orange); border-color: rgba(243,138,21,0.25); }
.stack-layer:nth-child(3) { background: var(--sv-navy); color: #fff; border-color: var(--sv-navy); }
.stack-layer:nth-child(3) h4, .stack-layer:nth-child(3) p { color: #fff; }
.stack-layer h4 { margin-bottom: 4px; font-size: 1.05rem; }
.stack-layer p { margin-bottom: 0; font-size: 0.92rem; }
@media (max-width: 640px) { .stack-layer { grid-template-columns: 1fr; gap: 8px; } }

/* ---------- Client Chips ---------- */
.client-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
@media (max-width: 780px) { .client-grid { grid-template-columns: repeat(2, 1fr); } }
.client-chip {
  background: #FFFFFF; border: 1px solid var(--sv-border); border-radius: var(--radius-md);
  padding: 18px 16px; text-align: center; font-weight: 700; font-size: 0.92rem; color: var(--sv-navy);
  display: flex; align-items: center; justify-content: center; min-height: 78px;
  box-shadow: var(--shadow-xs);
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.client-chip:hover { transform: translateY(-2px); border-color: var(--sv-blue); }

/* ---------- FAQ Accordion ---------- */
.faq-list { display: flex; flex-direction: column; gap: 14px; max-width: 840px; margin: 0 auto; }
.faq-item {
  background: #FFFFFF;
  border: 1px solid var(--sv-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-xs);
  transition: border-color 0.18s ease;
}
.faq-item[open] { border-color: rgba(10, 94, 174, 0.35); }
.faq-item summary {
  list-style: none;
  cursor: pointer;
  padding: 22px 26px;
  font-weight: 700;
  color: var(--sv-navy);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  font-family: var(--font-head);
  font-size: 1.05rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .icon-plus { width: 22px; height: 22px; flex-shrink: 0; position: relative; }
.faq-item summary .icon-plus::before, .faq-item summary .icon-plus::after {
  content: ""; position: absolute; background: var(--sv-blue); border-radius: 2px; transition: transform .2s ease;
}
.faq-item summary .icon-plus::before { width: 14px; height: 2.5px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.faq-item summary .icon-plus::after { width: 2.5px; height: 14px; top: 50%; left: 50%; transform: translate(-50%,-50%); }
.faq-item[open] summary .icon-plus::after { transform: translate(-50%,-50%) rotate(90deg); opacity: 0; }
.faq-item .faq-body { padding: 0 26px 24px; margin: 0; font-size: 0.98rem; line-height: 1.65; color: var(--sv-slate); }

/* ---------- Forms & Lead Consultation ---------- */
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-grid .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .form-grid { grid-template-columns: 1fr; } }
.field label { display: block; font-size: 0.88rem; font-weight: 700; color: var(--sv-navy); margin-bottom: 8px; }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; border: 1.5px solid var(--sv-border); border-radius: var(--radius-sm);
  background: #FFFFFF; color: var(--sv-ink); transition: border-color .15s ease, box-shadow .15s ease;
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--sv-blue);
  box-shadow: 0 0 0 3px rgba(10, 94, 174, 0.12);
  outline: none;
}
.field textarea { resize: vertical; min-height: 115px; }
.field-hint { font-size: 0.8rem; color: var(--sv-slate-light); margin-top: 6px; }
.form-note {
  display: flex; gap: 12px; align-items: flex-start; font-size: 0.86rem; color: var(--sv-slate);
  background: var(--sv-surface-tint); padding: 14px 18px; border-radius: var(--radius-md); margin-top: 10px;
  border: 1px solid var(--sv-border-light);
}
.form-note svg { width: 18px; height: 18px; flex-shrink: 0; color: var(--sv-blue); margin-top: 2px; }
.form-status { display: none; padding: 16px 18px; border-radius: var(--radius-md); font-size: 0.94rem; font-weight: 600; margin-top: 18px; }
.form-status.success { display: block; background: #EAF7EF; color: #1A8A4A; border: 1px solid rgba(26,138,74,0.2); }
.form-status.error { display: block; background: #FDECEC; color: #C0392B; border: 1px solid rgba(192,57,43,0.2); }

/* ---------- CTA Band ---------- */
.cta-band {
  border-radius: var(--radius-xl);
  padding: 60px 52px;
  background: var(--sv-gradient-cta);
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}
.cta-band::after {
  content: "";
  position: absolute;
  right: -60px;
  bottom: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(255,255,255,0.14), transparent 70%);
  border-radius: 50%;
}
.cta-band-grid {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 36px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.cta-band h2 { color: #FFFFFF; font-size: clamp(1.6rem, 2.8vw, 2.2rem); margin-bottom: 10px; }
.cta-band p { color: rgba(255,255,255,0.88); margin-bottom: 0; max-width: 520px; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
@media (max-width: 640px) { .cta-band { padding: 42px 28px; } }

/* ---------- Footer ---------- */
.site-footer { background: var(--sv-gradient-navy); color: #A7B6CC; padding: 76px 0 32px; }
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 44px;
  padding-bottom: 52px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
@media (max-width: 900px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand img { height: 36px; margin-bottom: 18px; }
.footer-brand p { color: #8EA0BA; font-size: 0.92rem; max-width: 320px; line-height: 1.6; }
.footer-col h5 { color: #FFFFFF; font-family: var(--font-head); font-size: 0.88rem; text-transform: uppercase; letter-spacing: .06em; margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 0.94rem; color: #A7B6CC; transition: color .15s ease; }
.footer-col a:hover { color: #FFFFFF; }
.footer-contact li { display: flex; gap: 12px; align-items: flex-start; font-size: 0.92rem; }
.footer-contact svg { width: 18px; height: 18px; flex-shrink: 0; margin-top: 2px; color: var(--sv-orange-light); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-top: 28px;
  font-size: 0.84rem;
  color: #6E82A0;
  flex-wrap: wrap;
}

/* WhatsApp Floating Action Button */
.wa-float {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 90;
  width: 60px;
  height: 60px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 28px rgba(37,211,102,0.48);
  transition: transform 0.2s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.2s ease;
}
.wa-float:hover {
  transform: scale(1.1);
  box-shadow: 0 14px 34px rgba(37,211,102,0.6);
}
.wa-float svg { width: 30px; height: 30px; color: #FFFFFF; }

/* Utilities */
.text-center { text-align: center; }
.mt-0 { margin-top: 0; }
.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; }
.divider { height: 1px; background: var(--sv-border); border: none; margin: 0; }