/* ==========================================================================
   HHUB SOLUTIONS — Main Design System
   Theme: Digital Deep Sea | Dark Blue Futuristic
   Fonts: Syne (display) + DM Sans (body)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Syne:wght@400;600;700;800&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,400&display=swap');

/* ── CSS Variables ──────────────────────────────────────── */
:root {
  --void:         #020818;
  --deep:         #030D22;
  --dark:         #05112B;
  --dark-2:       #081630;
  --card-bg:      rgba(8, 18, 40, 0.80);
  --card-border:  rgba(0, 85, 255, 0.18);
  --card-hover:   rgba(10, 24, 55, 0.95);

  --blue:         #0055FF;
  --blue-bright:  #2272FF;
  --blue-dim:     #0033CC;
  --cyan:         #00D4FF;
  --cyan-soft:    #48DCFF;
  --white:        #F0F6FF;
  --light:        #C8D8F0;
  --muted:        #6E85A0;
  --dim:          #3A4E64;

  --glow-blue:    0 0 40px rgba(0, 85, 255, 0.35);
  --glow-cyan:    0 0 30px rgba(0, 212, 255, 0.30);
  --glow-card:    0 8px 48px rgba(0, 55, 180, 0.25);

  --r-sm: 10px;
  --r-md: 18px;
  --r-lg: 28px;
  --r-xl: 40px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

/* ── Reset & Base ───────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden; /* prevent any element from creating horizontal scroll */
}

body {
  font-family: 'DM Sans', sans-serif;
  background-color: var(--void);
  color: var(--white);
  line-height: 1.65;
  overflow-x: hidden;
}

::selection { background: var(--blue); color: #fff; }

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }

/* ── Typography ─────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  font-family: 'Syne', sans-serif;
  font-weight: 700;
  line-height: 1.15;
  color: var(--white);
}

.display-xl { font-size: clamp(3rem, 7vw, 6rem); font-weight: 800; letter-spacing: -0.03em; }
.display-lg { font-size: clamp(2.2rem, 5vw, 4rem); font-weight: 800; letter-spacing: -0.025em; }
.display-md { font-size: clamp(1.6rem, 3.5vw, 2.8rem); font-weight: 700; letter-spacing: -0.02em; }
.section-title { font-size: clamp(1.8rem, 4vw, 3rem); font-weight: 800; letter-spacing: -0.02em; }
.section-sub { font-size: 1.05rem; color: var(--muted); max-width: 560px; }

/* ── Utility Classes ────────────────────────────────────── */
.container { width: 100%; max-width: 1260px; margin: 0 auto; padding: 0 24px; box-sizing: border-box; }
.section { padding: 100px 0; overflow-x: hidden; }
.section-sm { padding: 60px 0; }
.text-center { text-align: center; }
.text-gradient {
  background: linear-gradient(135deg, #fff 0%, var(--cyan) 60%, var(--blue-bright) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.text-blue { color: var(--cyan); }

.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 6px 14px; border-radius: 999px;
  font-size: 0.8rem; font-weight: 600; letter-spacing: 0.06em; text-transform: uppercase;
  background: rgba(0, 85, 255, 0.12);
  border: 1px solid rgba(0, 85, 255, 0.3);
  color: var(--cyan);
}
.badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--cyan); animation: pulse-dot 2s infinite; }

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

/* ── Buttons ────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 32px; border-radius: var(--r-sm);
  font-family: 'DM Sans', sans-serif; font-size: 0.95rem; font-weight: 600;
  border: none; cursor: pointer; transition: all 0.3s var(--ease-out);
  position: relative; overflow: hidden;
}
.btn::after {
  content: ''; position: absolute; inset: 0;
  background: rgba(255,255,255,0.08);
  opacity: 0; transition: opacity 0.2s;
}
.btn:hover::after { opacity: 1; }

.btn-primary {
  background: var(--blue);
  color: #fff;
  box-shadow: 0 4px 24px rgba(0, 85, 255, 0.4);
}
.btn-primary:hover {
  background: var(--blue-bright);
  box-shadow: 0 8px 36px rgba(0, 85, 255, 0.6);
  transform: translateY(-2px);
  color: #fff;
}

.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.2);
}
.btn-outline:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-2px);
  box-shadow: 0 4px 24px rgba(0, 212, 255, 0.2);
}

.btn-cyan {
  background: var(--cyan);
  color: var(--void);
  font-weight: 700;
  box-shadow: 0 4px 24px rgba(0, 212, 255, 0.4);
}
.btn-cyan:hover {
  background: var(--cyan-soft);
  box-shadow: 0 8px 36px rgba(0, 212, 255, 0.6);
  transform: translateY(-2px);
}

.btn-lg { padding: 18px 42px; font-size: 1.05rem; border-radius: var(--r-md); }
.btn-sm { padding: 10px 22px; font-size: 0.85rem; }
.btn-icon { width: 48px; height: 48px; padding: 0; border-radius: 50%; justify-content: center; }

/* ── Glassmorphism Card ─────────────────────────────────── */
.glass-card {
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: var(--r-md);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: all 0.4s var(--ease-out);
}
.glass-card:hover {
  background: var(--card-hover);
  border-color: rgba(0, 212, 255, 0.25);
  box-shadow: var(--glow-card);
  transform: translateY(-4px);
}

/* ── Background FX ──────────────────────────────────────── */
.bg-mesh {
  position: fixed; inset: 0; pointer-events: none; z-index: 0;
  background:
    radial-gradient(ellipse 80% 60% at 10% 10%, rgba(0, 55, 180, 0.18) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(0, 100, 255, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 40% 40% at 50% 50%, rgba(0, 212, 255, 0.06) 0%, transparent 70%);
}

.particle-canvas {
  position: absolute; inset: 0; pointer-events: none;
}

/* ── Navigation ─────────────────────────────────────────── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  padding: 16px 0;
  transition: all 0.4s var(--ease-out);
}
#navbar.scrolled {
  background: rgba(3, 13, 34, 0.92);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border-bottom: 1px solid var(--card-border);
  padding: 12px 0;
}

.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
}

.nav-logo {
  display: flex; align-items: center; gap: 12px;
  font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.4rem;
  color: var(--white);
}
.nav-logo-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; color: #fff; font-weight: 900;
  box-shadow: 0 4px 16px rgba(0, 85, 255, 0.4);
}
.nav-logo-text { white-space: nowrap; }
.nav-logo-text span { color: var(--cyan); }

/* Custom logo image in navbar */
.nav-logo-img {
  height: 40px;
  max-width: 180px;
  width: auto;
  object-fit: contain;
  display: block;
}

/* Custom logo image in footer */
.footer-logo-img {
  height: 42px;
  max-width: 200px;
  width: auto;
  object-fit: contain;
  display: block;
}

.nav-links {
  display: flex; align-items: center; gap: 2px;
  list-style: none;
  padding: 0; margin: 0; /* override browser/Bootstrap ul defaults */
}
.nav-links a {
  padding: 8px 16px; border-radius: 8px;
  font-size: 0.9rem; font-weight: 500; color: var(--light);
  transition: all 0.2s;
}
.nav-links a:hover, .nav-links a.active {
  color: var(--cyan);
  background: rgba(0, 212, 255, 0.08);
}

.nav-cta { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  color: var(--white); font-size: 1.4rem; padding: 8px;
}

/* Mobile Nav */
.mobile-nav {
  display: none;
  position: fixed; inset: 0; z-index: 999;
  background: rgba(3, 13, 34, 0.97);
  backdrop-filter: blur(30px);
  flex-direction: column; align-items: center; justify-content: center; gap: 24px;
  padding: 80px 24px;
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  font-family: 'Syne', sans-serif; font-size: 1.8rem; font-weight: 700;
  color: var(--white); transition: color 0.2s;
}
.mobile-nav a:hover { color: var(--cyan); }
.mobile-nav-close { display: none; }

/* ── Hero Section ───────────────────────────────────────── */
#hero {
  height: 100vh;
  height: 100dvh;      /* dynamic viewport height — adjusts for mobile browser bars */
  min-height: 600px;   /* floor so very small screens don't break */
  display: flex; align-items: center;
  position: relative; overflow: hidden;
  padding: 80px 0 24px; /* top = navbar height, minimal bottom */
}

.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 120% 80% at 50% -10%, rgba(0, 85, 255, 0.25) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 80% 60%, rgba(0, 212, 255, 0.10) 0%, transparent 50%),
    linear-gradient(180deg, var(--void) 0%, var(--deep) 100%);
  z-index: 0;
}

.hero-grid-lines {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0, 85, 255, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 85, 255, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse 80% 80% at 50% 0%, black 0%, transparent 100%);
}

.hero-content {
  position: relative; z-index: 2;
  max-width: 780px;
}

.hero-eyebrow {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
}

.hero-title {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.9rem, 5vw, 5rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
  overflow-wrap: break-word;
  word-break: break-word;
}

/* Fixed 2-line box — text wraps inside if long, nothing below shifts */
.hero-typed-wrap {
  display: block;
  height: 2.2em;
  overflow: hidden;
  line-height: 1.1;
}
.hero-typed {
  background: linear-gradient(90deg, var(--cyan) 0%, var(--blue-bright) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.typed-cursor {
  -webkit-text-fill-color: var(--cyan);
  animation: blink 0.75s step-end infinite;
}
@keyframes blink { 0%,100% { opacity: 1; } 50% { opacity: 0; } }

.hero-desc {
  font-size: clamp(0.95rem, 1.8vw, 1.1rem);
  color: var(--muted);
  margin-bottom: 24px;
  max-width: 560px;
  line-height: 1.7;
}

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 28px; }

.hero-trust {
  display: flex; align-items: center; gap: 20px;
  padding-top: 20px; border-top: 1px solid var(--card-border);
}
.trust-item { display: flex; align-items: center; gap: 8px; }
.trust-num {
  font-family: 'Syne', sans-serif; font-size: 1.4rem; font-weight: 800; color: var(--white);
}
.trust-label { font-size: 0.8rem; color: var(--muted); line-height: 1.2; }
.trust-divider { width: 1px; height: 36px; background: var(--card-border); }

.hero-visual {
  position: absolute; right: -40px; top: 50%; transform: translateY(-50%);
  width: 480px; pointer-events: none; z-index: 1;
  animation: float-hero 6s ease-in-out infinite;
}
@keyframes float-hero {
  0%, 100% { transform: translateY(-50%) translateY(0); }
  50% { transform: translateY(-50%) translateY(-20px); }
}

/* Hero floating cards */
.hero-card {
  position: absolute; background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--r-sm); padding: 16px 20px;
  backdrop-filter: blur(20px); animation: float-card 4s ease-in-out infinite;
}
.hero-card-1 { top: 15%; right: 5%; animation-delay: 0s; }
.hero-card-2 { bottom: 20%; right: 0%; animation-delay: 1.5s; }
.hero-card-3 { top: 55%; left: -60px; animation-delay: 0.8s; }
@keyframes float-card {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-10px) rotate(1deg); }
}

/* ── Marquee / Ticker ───────────────────────────────────── */
.marquee-section {
  padding: 20px 0;
  background: rgba(0, 85, 255, 0.06);
  border-top: 1px solid var(--card-border);
  border-bottom: 1px solid var(--card-border);
  overflow: hidden;
}
.marquee-track {
  display: flex; gap: 0;
  animation: marquee-scroll 30s linear infinite;
  white-space: nowrap;
}
.marquee-item {
  display: flex; align-items: center; gap: 16px;
  padding: 0 40px;
  font-family: 'Syne', sans-serif; font-size: 0.85rem; font-weight: 600;
  color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em;
}
.marquee-dot { width: 4px; height: 4px; border-radius: 50%; background: var(--cyan); }
@keyframes marquee-scroll { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }

/* ── Stats Section ──────────────────────────────────────── */
#stats {
  padding: 80px 0;
  background: linear-gradient(180deg, transparent 0%, rgba(0, 55, 180, 0.06) 50%, transparent 100%);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
.stat-card {
  text-align: center; padding: 40px 24px;
  border-radius: var(--r-md);
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  transition: all 0.3s var(--ease-out);
  overflow: hidden; /* prevent stat number overflowing on small screens */
}
.stat-card:hover { border-color: rgba(0, 212, 255, 0.3); box-shadow: var(--glow-card); transform: translateY(-4px); }
.stat-num {
  font-family: 'Syne', sans-serif; font-size: clamp(1.8rem, 7vw, 3rem); font-weight: 800;
  background: linear-gradient(135deg, var(--white) 0%, var(--cyan) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}
.stat-label { font-size: 0.9rem; color: var(--muted); }

/* ── Section Header ─────────────────────────────────────── */
.section-header { margin-bottom: 60px; }
.section-header.centered { text-align: center; }
.section-header.centered .section-sub { margin: 16px auto 0; }
.section-sub { margin-top: 16px; }

/* ── Services Section ───────────────────────────────────── */
#services { background: var(--void); }
.services-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px;
}
.service-card {
  padding: 40px; border-radius: var(--r-md);
  background: var(--card-bg); border: 1px solid var(--card-border);
  position: relative; overflow: hidden;
  transition: all 0.4s var(--ease-out);
  cursor: default;
}
.service-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, transparent, var(--blue), var(--cyan), transparent);
  opacity: 0; transition: opacity 0.4s;
}
.service-card:hover { border-color: rgba(0, 212, 255, 0.25); transform: translateY(-6px); box-shadow: var(--glow-card); }
.service-card:hover::before { opacity: 1; }

.service-icon {
  width: 64px; height: 64px; border-radius: 16px;
  background: rgba(0, 85, 255, 0.12);
  border: 1px solid rgba(0, 85, 255, 0.25);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.8rem; margin-bottom: 24px;
  transition: all 0.3s;
}
.service-card:hover .service-icon {
  background: rgba(0, 85, 255, 0.22);
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}
.service-num {
  position: absolute; top: 24px; right: 24px;
  font-family: 'Syne', sans-serif; font-size: 4rem; font-weight: 800;
  color: rgba(0, 85, 255, 0.06); line-height: 1;
  pointer-events: none; user-select: none;
}
.service-title { font-size: 1.25rem; margin-bottom: 12px; }
.service-desc { font-size: 0.92rem; color: var(--muted); line-height: 1.7; margin-bottom: 20px; }
.service-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.service-tag {
  padding: 4px 12px; border-radius: 999px;
  font-size: 0.78rem; font-weight: 500; color: var(--cyan);
  background: rgba(0, 212, 255, 0.08); border: 1px solid rgba(0, 212, 255, 0.15);
}

/* ── Portfolio Section ──────────────────────────────────── */
#portfolio { background: var(--deep); }
.portfolio-filter {
  display: flex; flex-wrap: wrap; gap: 10px; margin-bottom: 40px;
}
.filter-btn {
  padding: 8px 20px; border-radius: 999px;
  font-size: 0.85rem; font-weight: 600;
  border: 1.5px solid var(--card-border);
  background: transparent; color: var(--muted);
  cursor: pointer; transition: all 0.2s;
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--blue); color: var(--cyan);
  background: rgba(0, 85, 255, 0.1);
}

.portfolio-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.portfolio-card {
  border-radius: var(--r-md); overflow: hidden;
  background: var(--card-bg); border: 1px solid var(--card-border);
  transition: all 0.4s var(--ease-out);
}
.portfolio-card:hover { transform: translateY(-6px); box-shadow: var(--glow-card); border-color: rgba(0, 212, 255, 0.25); }
.portfolio-img {
  position: relative; aspect-ratio: 16/10; overflow: hidden;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
}
.portfolio-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease-out); }
.portfolio-card:hover .portfolio-img img { transform: scale(1.05); }
.portfolio-overlay {
  position: absolute; inset: 0;
  background: rgba(5, 17, 43, 0.85);
  display: flex; align-items: center; justify-content: center; gap: 12px;
  opacity: 0; transition: opacity 0.3s;
}
.portfolio-card:hover .portfolio-overlay { opacity: 1; }
.portfolio-body { padding: 24px; }
.portfolio-cat {
  font-size: 0.75rem; font-weight: 600; color: var(--cyan);
  text-transform: uppercase; letter-spacing: 0.08em; margin-bottom: 8px;
}
.portfolio-title { font-size: 1.05rem; margin-bottom: 8px; }
.portfolio-client { font-size: 0.85rem; color: var(--muted); }
.portfolio-tech { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.tech-tag {
  padding: 3px 10px; border-radius: 999px;
  font-size: 0.72rem; color: var(--muted);
  background: rgba(255,255,255,0.04); border: 1px solid var(--card-border);
}

/* ── Warranty Section ───────────────────────────────────── */
#warranty {
  background: linear-gradient(135deg, var(--void) 0%, var(--dark) 100%);
  position: relative;
}
#warranty::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(0, 85, 255, 0.08) 0%, transparent 70%);
  pointer-events: none;
}
.warranty-wrap {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center;
}
.warranty-checker {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--r-lg); padding: 40px;
  backdrop-filter: blur(20px);
}
.warranty-checker h3 { font-size: 1.5rem; margin-bottom: 8px; }
.warranty-checker p { color: var(--muted); font-size: 0.9rem; margin-bottom: 28px; }
.warranty-input-wrap { display: flex; gap: 12px; margin-bottom: 24px; }
.warranty-input {
  flex: 1; padding: 14px 20px; border-radius: var(--r-sm);
  background: rgba(255,255,255,0.04); border: 1.5px solid var(--card-border);
  color: var(--white); font-family: 'DM Sans', sans-serif; font-size: 0.95rem;
  transition: border-color 0.2s; outline: none;
}
.warranty-input:focus { border-color: var(--blue); box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.15); }
.warranty-input::placeholder { color: var(--dim); }

.warranty-result {
  border-radius: var(--r-sm); padding: 20px 24px;
  display: none;
}
.warranty-result.active { display: flex; gap: 16px; align-items: flex-start; }
.warranty-result.status-active { background: rgba(0, 200, 100, 0.08); border: 1px solid rgba(0, 200, 100, 0.25); }
.warranty-result.status-expired { background: rgba(255, 80, 80, 0.08); border: 1px solid rgba(255, 80, 80, 0.25); }
.warranty-result.status-expiring { background: rgba(255, 180, 0, 0.08); border: 1px solid rgba(255, 180, 0, 0.25); }
.warranty-result.status-error { background: rgba(255,80,80,0.06); border: 1px solid rgba(255,80,80,0.2); }

.result-icon { font-size: 2rem; line-height: 1; }
.result-content { flex: 1; }
.result-project { font-family: 'Syne', sans-serif; font-size: 1.1rem; font-weight: 700; margin-bottom: 4px; }
.result-client { font-size: 0.85rem; color: var(--muted); margin-bottom: 12px; }
.result-meta { display: flex; flex-wrap: wrap; gap: 16px; }
.result-meta-item { font-size: 0.82rem; }
.result-meta-item strong { display: block; color: var(--muted); font-weight: 500; margin-bottom: 2px; }
.result-badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 12px; border-radius: 999px; font-size: 0.8rem; font-weight: 600;
}
.badge-active { background: rgba(0, 200, 100, 0.15); color: #00C864; }
.badge-expired { background: rgba(255, 80, 80, 0.15); color: #FF5050; }
.badge-expiring { background: rgba(255, 180, 0, 0.15); color: #FFB400; }

/* ── FAQ Section ────────────────────────────────────────── */
#faq { background: var(--void); }
.faq-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 0; max-width: 900px; margin: 0 auto;
  flex-direction: column;
}
.faq-grid { display: flex; flex-direction: column; max-width: 840px; margin: 0 auto; gap: 12px; }
.faq-item {
  border: 1px solid var(--card-border); border-radius: var(--r-md);
  background: var(--card-bg); overflow: hidden;
  transition: border-color 0.3s;
}
.faq-item.open { border-color: rgba(0, 85, 255, 0.35); }
.faq-question {
  padding: 22px 28px; display: flex; align-items: center; justify-content: space-between;
  cursor: pointer; gap: 16px;
  font-family: 'Syne', sans-serif; font-size: 1rem; font-weight: 600;
  user-select: none;
}
.faq-toggle {
  width: 32px; height: 32px; min-width: 32px; border-radius: 50%;
  border: 1.5px solid var(--card-border); background: transparent;
  cursor: pointer; display: flex; align-items: center; justify-content: center;
  color: var(--muted); font-size: 1.1rem; transition: all 0.3s; line-height: 1;
}
.faq-item.open .faq-toggle { background: var(--blue); border-color: var(--blue); color: #fff; transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s var(--ease-out), padding 0.3s;
  padding: 0 28px; color: var(--muted); font-size: 0.93rem; line-height: 1.75;
}
.faq-item.open .faq-answer { max-height: 300px; padding: 0 28px 22px; }

/* ── Contact Section ────────────────────────────────────── */
#contact { background: var(--deep); }
.contact-grid { display: grid; grid-template-columns: 1fr 1.5fr; gap: 60px; align-items: start; }
.contact-info-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--r-lg); padding: 40px;
}
.contact-detail { display: flex; gap: 16px; align-items: flex-start; margin-bottom: 28px; }
.contact-detail-icon {
  width: 44px; height: 44px; min-width: 44px; border-radius: 12px;
  background: rgba(0, 85, 255, 0.12); border: 1px solid rgba(0, 85, 255, 0.2);
  display: flex; align-items: center; justify-content: center; font-size: 1.1rem;
}
.contact-detail-label { font-size: 0.8rem; color: var(--muted); margin-bottom: 4px; text-transform: uppercase; letter-spacing: 0.06em; }
.contact-detail-value { font-size: 0.95rem; font-weight: 500; }

.contact-form {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--r-lg); padding: 40px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.form-group { margin-bottom: 20px; }
.form-label {
  display: block; margin-bottom: 8px;
  font-size: 0.85rem; font-weight: 600; color: var(--light); letter-spacing: 0.02em;
}
.form-control {
  width: 100%; padding: 13px 18px; border-radius: var(--r-sm);
  background: rgba(255,255,255,0.04); border: 1.5px solid var(--card-border);
  color: var(--white); font-family: 'DM Sans', sans-serif; font-size: 0.93rem;
  transition: all 0.2s; outline: none;
}
.form-control:focus {
  border-color: var(--blue); background: rgba(0, 85, 255, 0.06);
  box-shadow: 0 0 0 3px rgba(0, 85, 255, 0.12);
}
.form-control::placeholder { color: var(--dim); }
textarea.form-control { resize: vertical; min-height: 130px; }
select.form-control option { background: var(--dark); }

/* ── Why Us / Features ──────────────────────────────────── */
#why-us {
  background: linear-gradient(180deg, var(--deep) 0%, var(--void) 100%);
}
.why-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.why-features { display: flex; flex-direction: column; gap: 24px; }
.why-feature { display: flex; gap: 20px; align-items: flex-start; }
.why-icon {
  width: 52px; height: 52px; min-width: 52px; border-radius: 14px;
  background: rgba(0, 85, 255, 0.10); border: 1px solid rgba(0, 85, 255, 0.2);
  display: flex; align-items: center; justify-content: center; font-size: 1.4rem;
}
.why-title { font-size: 1.05rem; margin-bottom: 4px; }
.why-desc { font-size: 0.88rem; color: var(--muted); line-height: 1.65; }

/* ── Process Steps ──────────────────────────────────────── */
#process { background: var(--void); }
.process-steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.process-steps::before {
  content: ''; position: absolute; top: 40px; left: 12.5%; right: 12.5%;
  height: 1px; background: linear-gradient(90deg, var(--blue), var(--cyan), var(--blue));
  z-index: 0;
}
.process-step { text-align: center; padding: 0 20px; position: relative; z-index: 1; }
.step-num {
  width: 80px; height: 80px; border-radius: 50%; margin: 0 auto 24px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Syne', sans-serif; font-size: 1.4rem; font-weight: 800; color: #fff;
  box-shadow: 0 8px 32px rgba(0, 85, 255, 0.4);
}
.step-title { font-size: 1rem; margin-bottom: 8px; }
.step-desc { font-size: 0.85rem; color: var(--muted); }

/* ── CTA Section ────────────────────────────────────────── */
#cta {
  padding: 100px 0;
  background: linear-gradient(135deg, var(--dark) 0%, rgba(0, 40, 150, 0.15) 50%, var(--dark) 100%);
  position: relative; overflow: hidden;
}
#cta::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse 80% 100% at 50% 0%, rgba(0, 85, 255, 0.15) 0%, transparent 70%);
}
.cta-inner { position: relative; z-index: 1; text-align: center; }
.cta-title { font-size: clamp(2rem, 5vw, 3.5rem); margin-bottom: 16px; }
.cta-desc { color: var(--muted); font-size: 1.05rem; max-width: 500px; margin: 0 auto 36px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

/* ── Footer ─────────────────────────────────────────────── */
#footer {
  background: rgba(2, 8, 24, 0.95);
  border-top: 1px solid var(--card-border);
  padding: 80px 0 32px;
}
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 48px; margin-bottom: 60px; }
.footer-brand-logo { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand-logo .logo-icon {
  width: 42px; height: 42px; border-radius: 10px;
  background: linear-gradient(135deg, var(--blue) 0%, var(--cyan) 100%);
  display: flex; align-items: center; justify-content: center;
  font-family: 'Syne', sans-serif; font-size: 1rem; font-weight: 900; color: #fff;
}
.footer-brand-name { font-family: 'Syne', sans-serif; font-weight: 800; font-size: 1.2rem; }
.footer-desc { font-size: 0.88rem; color: var(--muted); line-height: 1.7; margin-bottom: 24px; }
.footer-socials { display: flex; gap: 10px; }
.social-link {
  width: 38px; height: 38px; border-radius: 10px;
  border: 1px solid var(--card-border); background: transparent;
  display: flex; align-items: center; justify-content: center; color: var(--muted);
  font-size: 0.95rem; transition: all 0.2s;
}
.social-link:hover { border-color: var(--blue); color: var(--cyan); background: rgba(0, 85, 255, 0.1); }
.footer-col-title {
  font-family: 'Syne', sans-serif; font-size: 0.85rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.1em; color: var(--white);
  margin-bottom: 20px;
}
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer-links a { font-size: 0.88rem; color: var(--muted); transition: color 0.2s; }
.footer-links a:hover { color: var(--cyan); }
.footer-bottom {
  padding-top: 28px; border-top: 1px solid var(--card-border);
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 12px;
}
.footer-copy { font-size: 0.83rem; color: var(--dim); }
.footer-copy a { color: var(--muted); }
.footer-copy a:hover { color: var(--cyan); }

/* ── Scroll Animations ──────────────────────────────────── */
.reveal {
  opacity: 0; transform: translateY(30px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ── Loader ─────────────────────────────────────────────── */
#page-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--void);
  display: flex; align-items: center; justify-content: center;
  flex-direction: column; gap: 24px;
  transition: opacity 0.5s, visibility 0.5s;
}
#page-loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.loader-logo {
  font-family: 'Syne', sans-serif; font-size: 2rem; font-weight: 800;
  background: linear-gradient(135deg, #fff 0%, var(--cyan) 100%);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.loader-bar-wrap { width: 200px; height: 3px; background: rgba(255,255,255,0.08); border-radius: 999px; overflow: hidden; }
.loader-bar {
  height: 100%; width: 0%; border-radius: 999px;
  background: linear-gradient(90deg, var(--blue), var(--cyan));
  animation: load-progress 1.2s var(--ease-out) forwards;
}
@keyframes load-progress { to { width: 100%; } }

/* ── Portfolio Detail Page ──────────────────────────────── */
.pd-hero {
  position: relative; height: 70vh; min-height: 480px; max-height: 680px;
  overflow: hidden; display: flex; align-items: flex-end;
}
.pd-hero-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; transition: transform 8s ease;
}
.pd-hero:hover .pd-hero-img { transform: scale(1.04); }
.pd-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(2,8,24,.95) 0%, rgba(2,8,24,.5) 50%, rgba(2,8,24,.15) 100%);
}
.pd-hero-content {
  position: relative; z-index: 2; width: 100%; padding: 48px 0;
}
.pd-breadcrumb {
  display: flex; align-items: center; gap: 8px;
  font-size: .8rem; color: var(--muted); margin-bottom: 16px;
}
.pd-breadcrumb a { color: var(--muted); transition: color .2s; }
.pd-breadcrumb a:hover { color: var(--cyan); }
.pd-breadcrumb span { color: var(--dim); }

.pd-layout {
  display: grid; grid-template-columns: 1fr 340px; gap: 48px;
  align-items: start; padding: 60px 0;
}

/* Gallery */
.pd-gallery { display: flex; flex-direction: column; gap: 16px; }
.pd-gallery-main {
  position: relative; border-radius: var(--r-lg); overflow: hidden;
  aspect-ratio: 16/9; background: var(--dark); cursor: zoom-in;
}
.pd-gallery-main img {
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .5s var(--ease-out);
}
.pd-gallery-main:hover img { transform: scale(1.03); }
.pd-gallery-expand {
  position: absolute; bottom: 16px; right: 16px;
  background: rgba(2,8,24,.7); border: 1px solid var(--card-border);
  color: var(--white); border-radius: 8px; padding: 8px 14px;
  font-size: .8rem; cursor: pointer; backdrop-filter: blur(8px);
  display: flex; align-items: center; gap: 6px; transition: all .2s;
}
.pd-gallery-expand:hover { background: var(--blue); border-color: var(--blue); }

.pd-thumbs {
  display: grid; grid-template-columns: repeat(5, 1fr); gap: 10px;
}
.pd-thumb {
  aspect-ratio: 1; border-radius: var(--r-sm); overflow: hidden;
  cursor: pointer; border: 2px solid transparent; transition: all .25s;
  background: var(--dark);
}
.pd-thumb img { width: 100%; height: 100%; object-fit: cover; }
.pd-thumb.active { border-color: var(--cyan); box-shadow: var(--glow-cyan); }
.pd-thumb:hover { border-color: rgba(0,212,255,.4); transform: translateY(-2px); }

.pd-desc {
  font-size: .95rem; color: var(--light); line-height: 1.8;
  margin-top: 32px; padding-top: 32px; border-top: 1px solid var(--card-border);
}
.pd-desc h3 { font-size: 1.2rem; margin-bottom: 12px; }
.pd-tech { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 24px; }
.pd-tech-tag {
  padding: 6px 14px; border-radius: 999px; font-size: .8rem; font-weight: 600;
  background: rgba(0,85,255,.1); border: 1px solid rgba(0,85,255,.25); color: var(--cyan);
}

/* Sidebar */
.pd-sidebar { display: flex; flex-direction: column; gap: 20px; }
.pd-info-card {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--r-md); padding: 28px;
}
.pd-info-row { display: flex; flex-direction: column; gap: 4px; padding: 14px 0; border-bottom: 1px solid var(--card-border); }
.pd-info-row:last-child { border-bottom: none; padding-bottom: 0; }
.pd-info-row:first-child { padding-top: 0; }
.pd-info-label { font-size: .73rem; font-weight: 700; color: var(--dim); text-transform: uppercase; letter-spacing: .08em; }
.pd-info-value { font-size: .92rem; color: var(--white); font-weight: 500; }

/* Prev/Next Nav */
.pd-nav {
  display: grid; grid-template-columns: 1fr 1fr; gap: 20px;
  padding: 48px 0; border-top: 1px solid var(--card-border);
}
.pd-nav-item {
  background: var(--card-bg); border: 1px solid var(--card-border);
  border-radius: var(--r-md); padding: 24px;
  display: flex; align-items: center; gap: 16px;
  transition: all .3s var(--ease-out); cursor: pointer;
}
.pd-nav-item:hover { border-color: rgba(0,212,255,.3); transform: translateY(-3px); box-shadow: var(--glow-card); }
.pd-nav-item.next { flex-direction: row-reverse; text-align: right; }
.pd-nav-arrow { font-size: 1.5rem; color: var(--muted); transition: color .2s; }
.pd-nav-item:hover .pd-nav-arrow { color: var(--cyan); }
.pd-nav-label { font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; margin-bottom: 4px; }
.pd-nav-title { font-size: .95rem; font-weight: 600; }

/* ── Lightbox ────────────────────────────────────────────── */
.lightbox {
  position: fixed; inset: 0; z-index: 9998;
  background: rgba(2,8,24,.96); backdrop-filter: blur(12px);
  display: flex; align-items: center; justify-content: center;
  opacity: 0; visibility: hidden; transition: all .3s;
}
.lightbox.open { opacity: 1; visibility: visible; }
.lightbox-inner {
  position: relative; max-width: 90vw; max-height: 90vh;
  transform: scale(.95); transition: transform .3s var(--ease-out);
}
.lightbox.open .lightbox-inner { transform: scale(1); }
.lightbox img {
  max-width: 90vw; max-height: 85vh; border-radius: var(--r-md);
  object-fit: contain; display: block;
}
.lightbox-close {
  position: fixed; top: 24px; right: 24px; z-index: 9999;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.2);
  color: #fff; font-size: 1.2rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all .2s;
}
.lightbox-close:hover { background: rgba(255,80,80,.2); border-color: rgba(255,80,80,.4); }
.lightbox-btn {
  position: fixed; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,.1); border: 1px solid rgba(255,255,255,.15);
  color: #fff; font-size: 1.3rem; cursor: pointer;
  display: flex; align-items: center; justify-content: center; transition: all .2s;
  z-index: 9999;
}
.lightbox-btn:hover { background: rgba(0,85,255,.4); border-color: var(--blue); }
.lightbox-prev { left: 20px; }
.lightbox-next { right: 20px; }
.lightbox-counter {
  position: fixed; bottom: 28px; left: 50%; transform: translateX(-50%);
  font-size: .82rem; color: rgba(255,255,255,.5);
}

/* ── Home Portfolio Section (always visible) ─────────────── */
.home-portfolio-empty {
  grid-column: 1/-1; text-align: center; padding: 60px 20px;
  border: 2px dashed var(--card-border); border-radius: var(--r-lg);
}

/* ── Warranty info cards grid ────────────────────────────── */
.warranty-info-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

/* ══════════════════════════════════════════════
   RESPONSIVE BREAKPOINTS
   ══════════════════════════════════════════════ */

/* ─── ≤1100px  Large tablet / small desktop ──────────────── */
@media (max-width: 1100px) {
  .footer-grid    { grid-template-columns: 1fr 1fr; gap: 36px; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-visual    { display: none; }
}

/* ─── ≤900px  Tablet ─────────────────────────────────────── */
@media (max-width: 900px) {
  .services-grid  { grid-template-columns: 1fr; }
  .stats-grid     { grid-template-columns: repeat(2, 1fr); }
  .warranty-wrap  { grid-template-columns: 1fr; gap: 40px; }
  .contact-grid   { grid-template-columns: 1fr; gap: 32px; }
  .why-grid       { grid-template-columns: 1fr; gap: 40px; }
  .process-steps  { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-steps::before { display: none; }

  /* Always show text before feature list in stacked single-column layouts */
  .why-grid > div:not(.why-features) { order: 1 !important; }
  .why-grid > .why-features          { order: 2 !important; }
}

/* ─── ≤768px  Mobile ─────────────────────────────────────── */
@media (max-width: 768px) {
  /* Layout */
  .section          { padding: 60px 0; }
  .portfolio-grid   { grid-template-columns: 1fr; }
  .form-row         { grid-template-columns: 1fr; }

  /* Nav */
  .nav-links, .nav-cta { display: none; }
  .nav-toggle           { display: block; }
  .mobile-nav a         { font-size: 1.5rem; }
  .nav-logo             { font-size: 1.05rem; gap: 8px; }


  /* Hero */
  #hero             { padding: 88px 0 40px; }
  .hero-eyebrow     { flex-wrap: wrap; gap: 8px; }
  .hero-trust       { flex-wrap: wrap; gap: 12px; }
  .trust-divider    { display: none; }

  /* Service cards — reduce padding slightly */
  .service-card     { padding: 28px 24px; }

  /* Contact */
  .contact-info-card { padding: 28px 20px; }
  .contact-form      { padding: 28px 20px; }

  /* Warranty */
  .warranty-checker  { padding: 28px 24px; }

  /* CTA — stack buttons full-width */
  #cta              { padding: 70px 0; }
  .cta-actions      { flex-direction: column; align-items: center; }
  .cta-actions .btn { width: 100%; max-width: 320px; justify-content: center; }

  /* Footer */
  #footer            { padding: 60px 0 28px; }
  .footer-grid       { grid-template-columns: 1fr; gap: 32px; margin-bottom: 40px; }
  .footer-bottom     { flex-direction: column; gap: 6px; text-align: center; }

  /* Process — 2 col on tablet */
  .process-steps     { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

/* ─── ≤600px  Mid mobile ─────────────────────────────────── */
@media (max-width: 600px) {
  /* Warranty input: stack vertically */
  .warranty-input-wrap          { flex-direction: column; gap: 12px; }
  .warranty-input-wrap .btn     { width: 100%; justify-content: center; }

  /* Portfolio filter buttons — wrap tighter */
  .portfolio-filter { gap: 8px; }
  .filter-btn       { padding: 7px 14px; font-size: .82rem; }

  /* Page-level hero banners */
  .page-hero-banner { padding: 60px 0 40px; }
}

/* ─── ≤480px  Small mobile ───────────────────────────────── */
@media (max-width: 480px) {
  .section        { padding: 48px 0; }

  /* Stats — 2-up on small mobile (tighter but still readable) */
  .stats-grid     { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .stat-card      { padding: 20px 12px; }

  /* Process — single column */
  .process-steps  { grid-template-columns: 1fr; gap: 28px; }

  /* Hero */
  .hero-actions   { flex-direction: column; }
  .btn-lg         { width: 100%; justify-content: center; }
  .hero-trust     { justify-content: flex-start; }
  .trust-item     { gap: 6px; }
  .trust-num      { font-size: 1.3rem; }
  .trust-label    { font-size: .78rem; }

  /* Warranty info cards — stack */
  .warranty-info-grid { grid-template-columns: 1fr; }

  /* Footer */
  .footer-grid    { gap: 24px; }
  #footer         { padding: 50px 0 24px; }

  /* CTA */
  #cta            { padding: 56px 0; }

  /* Mobile nav — tighter on very small screens */
  .mobile-nav     { gap: 14px; }
  .mobile-nav a   { font-size: 1.2rem; }

  /* Reduce card padding */
  .contact-info-card,
  .contact-form,
  .warranty-checker { padding: 22px 16px; }
}

/* ── Scrollbar ──────────────────────────────────────────── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--void); }
::-webkit-scrollbar-thumb { background: rgba(0, 85, 255, 0.4); border-radius: 999px; }
::-webkit-scrollbar-thumb:hover { background: var(--blue); }

/* ── Misc ───────────────────────────────────────────────── */
.divider { height: 1px; background: linear-gradient(90deg, transparent, var(--card-border), transparent); margin: 0; }
.text-success { color: #00C864; }
.text-danger { color: #FF5050; }
.text-warning { color: #FFB400; }
.spinner { display: inline-block; width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.3); border-top-color: #fff; border-radius: 50%; animation: spin 0.7s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

.no-projects {
  grid-column: 1/-1; text-align: center; padding: 60px 20px; color: var(--muted);
}