/* ===========================
   VortKart® Global Stylesheet
   =========================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=Barlow+Condensed:wght@600;700;800&display=swap');

/* ---- CSS Variables ---- */
:root {
  --primary: #E63900;
  --primary-dark: #B82D00;
  --primary-light: #FF5A2B;
  --accent: #FFB800;
  --dark: #0A0A0A;
  --dark-2: #141414;
  --dark-3: #1E1E1E;
  --dark-4: #2A2A2A;
  --gray-1: #3D3D3D;
  --gray-2: #6B6B6B;
  --gray-3: #9A9A9A;
  --gray-4: #C8C8C8;
  --gray-5: #E8E8E8;
  --white: #FFFFFF;
  --off-white: #F5F4F2;
  --font-body: 'Inter', sans-serif;
  --font-heading: 'Barlow Condensed', sans-serif;
  --nav-height: 72px;
  --section-pad: 100px;
  --max-width: 1280px;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.12);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.18);
  --shadow-lg: 0 24px 64px rgba(0,0,0,0.24);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--dark);
  color: var(--white);
  line-height: 1.6;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* ---- Typography ---- */
h1, h2, h3, h4, h5 {
  font-family: var(--font-heading);
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-weight: 800;
  text-transform: uppercase;
}
h1 { font-size: clamp(52px, 8vw, 100px); }
h2 { font-size: clamp(36px, 5vw, 60px); }
h3 { font-size: clamp(24px, 3vw, 36px); }
h4 { font-size: clamp(18px, 2.5vw, 24px); }
p { font-size: 16px; line-height: 1.7; color: var(--gray-4); }

/* ---- Layout ---- */
.container { max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-pad) 0; }
.section-sm { padding: 60px 0; }

/* ---- Label ---- */
.label {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 12px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--primary);
  margin-bottom: 16px;
}
.label::before {
  content: ''; display: block; width: 24px; height: 2px;
  background: var(--primary);
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 32px; border-radius: var(--radius-sm);
  font-size: 14px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; transition: var(--transition);
  position: relative; overflow: hidden;
}
.btn-primary {
  background: var(--primary); color: var(--white);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(230,57,0,0.4); }
.btn-outline {
  background: transparent; color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.3);
}
.btn-outline:hover { border-color: var(--white); background: rgba(255,255,255,0.05); transform: translateY(-2px); }
.btn-white { background: var(--white); color: var(--dark); }
.btn-white:hover { background: var(--off-white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(255,255,255,0.15); }
.btn-lg { padding: 18px 40px; font-size: 15px; }
.btn svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ---- Cards ---- */
.card {
  background: var(--dark-3); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg); overflow: hidden;
  transition: var(--transition);
}
.card:hover { border-color: rgba(230,57,0,0.4); transform: translateY(-4px); box-shadow: var(--shadow-md); }

/* ---- Section Headings ---- */
.section-header { margin-bottom: 60px; }
.section-header.center { text-align: center; }
.section-header .section-title { color: var(--white); margin-bottom: 16px; }
.section-header p { max-width: 560px; }
.section-header.center p { margin: 0 auto; }

/* ---- Divider ---- */
.divider { height: 1px; background: rgba(255,255,255,0.08); margin: 0; }

/* ---- Highlight ---- */
.highlight { color: var(--primary); }
.highlight-accent { color: var(--accent); }

/* ---- Focus visible (accessibility) ---- */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* ========================
   NAVIGATION
   ======================== */
#navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: var(--nav-height);
  background: rgba(10,10,10,0.0);
  transition: background 0.4s ease, box-shadow 0.4s ease;
  backdrop-filter: blur(0px);
}
#navbar.scrolled {
  background: rgba(10,10,10,0.95);
  backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.08);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 100%;
  min-width: 0;
}
.nav-logo { flex-shrink: 0; }
.nav-links { flex-shrink: 1; min-width: 0; }
.nav-cta { display: flex; align-items: center; gap: 16px; flex-shrink: 0; }
.nav-logo {
  display: flex; align-items: center; gap: 10px;
}
.nav-logo-icon {
  width: 40px; height: 40px;
  background: var(--primary); border-radius: 6px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-size: 18px; font-weight: 800;
  color: var(--white); letter-spacing: -1px;
}
.nav-logo-text {
  font-family: var(--font-heading); font-size: 22px; font-weight: 800;
  color: var(--white); text-transform: uppercase; letter-spacing: 0.04em;
}
.nav-logo-text span { color: var(--primary); }
.nav-links {
  display: flex; align-items: center; gap: 28px;
}
.nav-links a {
  font-size: 13px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: rgba(255,255,255,0.7);
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: ''; position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px; background: var(--primary); transform: scaleX(0);
  transition: transform var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--white); }
.nav-links a:hover::after, .nav-links a.active::after { transform: scaleX(1); }
.nav-cta { display: flex; align-items: center; gap: 16px; }
.nav-phone {
  font-size: 13px; font-weight: 600; color: rgba(255,255,255,0.6);
  transition: color var(--transition);
}
.nav-phone:hover { color: var(--white); }

/* Mobile nav */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  width: 32px; cursor: pointer; padding: 4px;
}
.nav-toggle span {
  display: block; height: 2px; background: var(--white);
  border-radius: 2px; transition: var(--transition);
}
.mobile-nav {
  display: none; position: fixed; top: var(--nav-height); left: 0; right: 0;
  background: var(--dark-2); border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px; z-index: 999;
}
.mobile-nav.open { display: block; }
.mobile-nav a {
  display: block; padding: 14px 0; border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: 14px; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase;
  color: rgba(255,255,255,0.8);
}
.mobile-nav a:last-child { border-bottom: none; }
.mobile-nav .btn { width: 100%; justify-content: center; margin-top: 16px; }

/* ========================
   FOOTER
   ======================== */
footer {
  background: var(--dark-2);
  border-top: 1px solid rgba(255,255,255,0.08);
}
.footer-top {
  padding: 80px 0 60px;
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-brand p { font-size: 14px; color: var(--gray-3); margin-top: 16px; max-width: 280px; }
.footer-col h5 {
  font-size: 12px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--white); margin-bottom: 20px;
}
.footer-col a {
  display: block; font-size: 14px; color: var(--gray-3);
  margin-bottom: 10px; transition: color var(--transition);
}
.footer-col a:hover { color: var(--white); }
.footer-contact-item {
  display: flex; gap: 10px; margin-bottom: 12px;
}
.footer-contact-item svg { width: 16px; height: 16px; flex-shrink: 0; color: var(--primary); margin-top: 2px; }
.footer-contact-item span { font-size: 14px; color: var(--gray-3); }
.footer-social { display: flex; gap: 12px; margin-top: 24px; }
.social-icon {
  width: 38px; height: 38px; border-radius: var(--radius-sm);
  border: 1px solid rgba(255,255,255,0.12);
  display: flex; align-items: center; justify-content: center;
  color: var(--gray-3); transition: var(--transition);
}
.social-icon:hover { background: var(--primary); border-color: var(--primary); color: var(--white); }
.social-icon svg { width: 16px; height: 16px; }
.footer-bottom {
  padding: 20px 0; border-top: 1px solid rgba(255,255,255,0.06);
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 12px;
}
.footer-bottom p { font-size: 13px; color: var(--gray-2); }
.footer-bottom-links { display: flex; gap: 24px; }
.footer-bottom-links a { font-size: 13px; color: var(--gray-2); transition: color var(--transition); }
.footer-bottom-links a:hover { color: var(--white); }

/* ========================
   HERO (shared)
   ======================== */
.page-hero {
  position: relative; min-height: 420px;
  display: flex; align-items: center;
  overflow: hidden; padding-top: var(--nav-height);
  background: var(--dark-2);
}
.page-hero-bg {
  position: absolute; inset: 0;
  background-size: cover; background-position: center;
  opacity: 0.25;
}
.page-hero-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(10,10,10,0.95) 0%, rgba(10,10,10,0.6) 100%);
}
.page-hero-content { position: relative; z-index: 1; padding: 80px 0 60px; }
.page-hero h1 { margin-bottom: 16px; }
.page-hero .breadcrumb {
  display: flex; align-items: center; gap: 8px; margin-bottom: 16px;
  font-size: 13px; color: var(--gray-3);
}
.page-hero .breadcrumb a { color: var(--gray-3); transition: color var(--transition); }
.page-hero .breadcrumb a:hover { color: var(--white); }
.page-hero .breadcrumb span { color: var(--primary); }

/* ========================
   UTILITY CLASSES
   ======================== */
.text-center { text-align: center; }
.text-primary { color: var(--primary); }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-32 { margin-top: 32px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-32 { margin-bottom: 32px; }
.flex { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-8 { gap: 8px; }
.gap-16 { gap: 16px; }
.gap-24 { gap: 24px; }
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

/* Fade In Animation */
.fade-in {
  opacity: 0; transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible { opacity: 1; transform: translateY(0); }
.fade-in.delay-1 { transition-delay: 0.1s; }
.fade-in.delay-2 { transition-delay: 0.2s; }
.fade-in.delay-3 { transition-delay: 0.3s; }
.fade-in.delay-4 { transition-delay: 0.4s; }

/* ========================
   TRUST BAR
   ======================== */
.trust-bar {
  background: var(--dark-2);
  border-top: 1px solid rgba(255,255,255,0.06);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
}
.trust-bar-inner {
  display: flex; align-items: center; justify-content: center;
  flex-wrap: wrap; gap: 0;
}
.trust-item {
  display: flex; align-items: center; gap: 10px;
  padding: 8px 32px; border-right: 1px solid rgba(255,255,255,0.08);
}
.trust-item:last-child { border-right: none; }
.trust-item svg { width: 20px; height: 20px; color: var(--primary); flex-shrink: 0; }
.trust-item span { font-size: 13px; font-weight: 600; color: var(--gray-4); letter-spacing: 0.02em; }
.trust-item strong { color: var(--white); }

/* ========================
   STATS STRIP
   ======================== */
.stats-strip {
  background: var(--primary);
  padding: 56px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}
.stat-num {
  font-family: var(--font-heading);
  font-size: clamp(48px, 6vw, 72px);
  font-weight: 800;
  color: var(--white);
  line-height: 1;
}
.stat-label {
  font-size: 13px; font-weight: 600; letter-spacing: 0.08em;
  text-transform: uppercase; color: rgba(255,255,255,0.7);
  margin-top: 8px;
}

/* ========================
   CTA SECTION
   ======================== */
.cta-section {
  background: var(--dark-2);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 60% at 50% 50%, rgba(230,57,0,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section h2 { margin-bottom: 20px; }
.cta-section p { margin-bottom: 40px; font-size: 18px; }
.cta-buttons { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ========================
   FORMS (contact)
   ======================== */
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block; font-size: 12px; font-weight: 700;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--gray-4); margin-bottom: 8px;
}
.form-control {
  width: 100%; padding: 14px 16px;
  background: var(--dark-3); border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-md); color: var(--white);
  font-size: 15px; transition: border-color var(--transition);
}
.form-control:focus {
  outline: none; border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(230,57,0,0.15);
}
.form-control::placeholder { color: var(--gray-2); }
textarea.form-control { resize: vertical; min-height: 140px; }
select.form-control { appearance: none; }

/* ========================
   FAQ ACCORDION
   ======================== */
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.faq-question {
  width: 100%; text-align: left; padding: 24px 0;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 17px; font-weight: 600; color: var(--white);
  background: none; cursor: pointer; transition: color var(--transition);
}
.faq-question:hover { color: var(--primary); }
.faq-question svg { width: 20px; height: 20px; flex-shrink: 0; transition: transform var(--transition); }
.faq-item.open .faq-question { color: var(--primary); }
.faq-item.open .faq-question svg { transform: rotate(45deg); }
.faq-answer {
  max-height: 0; overflow: hidden; transition: max-height 0.4s ease, padding 0.3s ease;
}
.faq-answer-inner { padding-bottom: 24px; color: var(--gray-3); font-size: 15px; line-height: 1.8; }
.faq-item.open .faq-answer { max-height: 400px; }

/* ========================
   FILTER BAR
   ======================== */
.filter-bar {
  display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 40px;
}
.filter-btn {
  padding: 8px 20px; border-radius: 100px;
  font-size: 13px; font-weight: 600; letter-spacing: 0.05em;
  border: 1px solid rgba(255,255,255,0.12);
  color: var(--gray-4); background: transparent;
  transition: var(--transition); cursor: pointer;
}
.filter-btn:hover, .filter-btn.active {
  background: var(--primary); border-color: var(--primary); color: var(--white);
}

/* ========================
   PROCESS STEPS
   ======================== */
.process-steps {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  position: relative;
}
.process-steps::before {
  content: ''; position: absolute; top: 32px; left: 12.5%; right: 12.5%;
  height: 1px; background: rgba(255,255,255,0.12);
}
.process-step { text-align: center; padding: 0 16px; }
.step-num {
  width: 64px; height: 64px; border-radius: 50%;
  background: var(--dark-3); border: 2px solid rgba(230,57,0,0.4);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 24px; position: relative; z-index: 1;
  font-family: var(--font-heading); font-size: 24px; font-weight: 800;
  color: var(--primary);
}
.process-step h4 { font-size: 18px; margin-bottom: 10px; color: var(--white); }
.process-step p { font-size: 14px; }

/* ========================
   TESTIMONIALS
   ======================== */
.testimonial-card {
  background: var(--dark-3); border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg); padding: 36px; position: relative;
}
.testimonial-stars { color: var(--accent); font-size: 16px; margin-bottom: 16px; letter-spacing: 2px; }
.testimonial-card p { font-size: 16px; color: var(--gray-4); font-style: italic; line-height: 1.8; margin-bottom: 24px; }
.testimonial-author { display: flex; align-items: center; gap: 14px; }
.author-avatar {
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--primary); display: flex; align-items: center; justify-content: center;
  font-family: var(--font-heading); font-size: 16px; font-weight: 800; color: var(--white);
  flex-shrink: 0;
}
.author-name { font-weight: 700; font-size: 14px; color: var(--white); }
.author-title { font-size: 12px; color: var(--gray-3); margin-top: 2px; }

/* ========================
   RESPONSIVE
   ======================== */

/* ---- Large desktop → Tablet landscape ---- */
@media (max-width: 1100px) {
  .nav-links { gap: 20px; }
  .nav-phone { display: none; }
}

/* ---- Tablet landscape (≤1024px) ---- */
@media (max-width: 1024px) {
  :root { --section-pad: 80px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 40px; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(2, 1fr); gap: 40px; }
  .process-steps::before { display: none; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .section-header { margin-bottom: 40px; }
  .section-header p { max-width: 100%; }
  .page-hero { min-height: 340px; }
  .page-hero-content { padding: 60px 0 40px; }
  .cta-section { padding: 80px 0; }
  .cta-section p { font-size: 16px; }
  .stats-strip { padding: 48px 0; }
  .faq-grid { grid-template-columns: 1fr !important; gap: 48px; }
  .service-featured-body { padding: 36px !important; }
  .pricing-cards { grid-template-columns: 1fr !important; }
  .contact-grid { grid-template-columns: 1fr !important; gap: 48px !important; }
  .contact-info { position: static !important; }
  .form-panel { padding: 36px !important; }
  .mission-grid { grid-template-columns: 1fr !important; gap: 48px !important; }
  .diff-row { grid-template-columns: 1fr !important; gap: 32px !important; }
  .diff-row.reverse .diff-img { order: 1 !important; }
  .diff-row.reverse .diff-content { order: 2 !important; }
  .team-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .portfolio-grid { grid-template-columns: repeat(2, 1fr) !important; }
  .portfolio-card.featured { grid-column: span 2; }
  .testimonials-grid { grid-template-columns: 1fr !important; }
  .about-preview-grid { grid-template-columns: 1fr !important; gap: 48px !important; }
  .about-img-accent { right: 8px !important; bottom: -16px !important; width: 46% !important; }
  .about-years-badge { left: 0 !important; }
  .product-detail-hero .container { grid-template-columns: 1fr !important; gap: 40px !important; }
  .pd-feature-grid { grid-template-columns: 1fr !important; gap: 0 !important; }
  .pd-gallery { grid-template-columns: repeat(2, 1fr) !important; }
  .service-featured { grid-template-columns: 1fr !important; }
  .service-featured-img { aspect-ratio: 16/9 !important; }
}

/* ---- Tablet portrait / Large phone (≤768px) ---- */
@media (max-width: 768px) {
  :root { --section-pad: 56px; --nav-height: 60px; }
  .container { padding: 0 20px; }
  .nav-links, .nav-cta .btn, .nav-phone { display: none; }
  .nav-toggle { display: flex; }
  .nav-logo-text { font-size: 18px; }
  .nav-logo-icon { width: 34px; height: 34px; font-size: 15px; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .trust-bar-inner { flex-direction: column; gap: 8px; }
  .trust-item { border-right: none; border-bottom: 1px solid rgba(255,255,255,0.06); width: 100%; justify-content: center; padding: 8px 16px; }
  .trust-item:last-child { border-bottom: none; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .footer-bottom-links { justify-content: center; flex-wrap: wrap; }
  .process-steps { grid-template-columns: 1fr; gap: 32px; }
  .cta-buttons { flex-direction: column; align-items: stretch; }
  .cta-buttons .btn { width: 100%; justify-content: center; }
  .cta-section h2 { font-size: clamp(28px, 6vw, 40px); }
  .section-header { margin-bottom: 32px; }
  .section-header h2 { font-size: clamp(28px, 6vw, 42px); }
  .page-hero { min-height: 300px; }
  .page-hero-content { padding: 48px 0 32px; }
  .page-hero h1 { font-size: clamp(32px, 8vw, 48px); }
  .stats-strip { padding: 40px 0; }
  .stat-num { font-size: clamp(36px, 8vw, 52px); }
  .stat-label { font-size: 11px; }
  .btn { padding: 12px 24px; font-size: 13px; }
  .btn-lg { padding: 14px 28px; font-size: 14px; }
  .mobile-nav { padding: 20px; }
  .mobile-nav a { font-size: 15px; padding: 16px 0; }
  .mobile-nav .btn { margin-top: 12px; }
  .footer-top { padding: 56px 0 40px; }
  .footer-brand p { max-width: 100%; }
  .footer-social { gap: 10px; }
  .social-icon { width: 36px; height: 36px; }
  .faq-question { font-size: 15px; padding: 20px 0; }
  .faq-answer-inner { font-size: 14px; padding-bottom: 20px; }
  .filter-bar { gap: 6px; margin-bottom: 28px; overflow-x: auto; flex-wrap: nowrap; -webkit-overflow-scrolling: touch; padding-bottom: 4px; }
  .filter-btn { padding: 8px 16px; font-size: 12px; white-space: nowrap; }
  .testimonial-card { padding: 28px; }
  .advantage-card { padding: 28px; }
  .service-card-body { padding: 28px !important; }
  .product-info { padding: 22px !important; }
  .product-specs { gap: 6px; }
  .spec-item { padding: 8px 10px; }
  .spec-label { font-size: 9px; }
  .spec-value { font-size: 13px; }
  .product-actions { flex-direction: column !important; }
  .product-actions .btn { width: 100%; justify-content: center; }
  .portfolio-grid { grid-template-columns: 1fr !important; }
  .portfolio-card.featured { grid-column: span 1; }
  .portfolio-card.featured .portfolio-img { aspect-ratio: 16/9; }
  .portfolio-info { padding: 20px; }
  .portfolio-stats { gap: 16px; }
  .pricing-card { padding: 28px 20px !important; }
  .pricing-card .price { font-size: 40px !important; }
  .form-panel { padding: 24px 20px !important; }
  .form-row { grid-template-columns: 1fr !important; }
  .map-container { height: 300px; }
  .map-overlay-info { max-width: 200px; padding: 14px 16px; top: 16px; left: 16px; }
  .map-overlay-info h4 { font-size: 14px; }
  .map-overlay-info p { font-size: 11px; }
  .response-promise { padding: 16px 20px; }
  .response-promise p { font-size: 13px; }
  .contact-block-item { padding: 16px; }
  .hours-card { padding: 20px; }
  .hours-row { font-size: 13px; }
  .social-link-btn { padding: 10px 8px; font-size: 11px; }
  .social-links-row { gap: 8px; }
  .pd-section { padding: 48px 0 !important; }
  .pd-spec-grid { grid-template-columns: 1fr 1fr !important; gap: 12px; }
  .pd-spec-card { padding: 20px; }
  .pd-spec-value { font-size: 22px; }
  .pd-hero-actions { flex-direction: column; }
  .pd-hero-actions .btn { justify-content: center; }
  .pd-cta-bar { padding: 36px 0; }
  .pd-cta-bar h3 { font-size: 22px; }
  .pd-cta-buttons { flex-direction: column; align-items: stretch; }
  .pd-cta-buttons .btn { justify-content: center; }
  .pd-related-body { padding: 16px; }
  .pd-related-card { display: flex; flex-direction: column; }
  .pd-related-card img { display: block; flex-shrink: 0; }
  .pd-table th, .pd-table td { padding: 12px 16px; font-size: 13px; }
  .value-card { padding: 24px 20px; }
  .value-num { font-size: 48px; }
  .timeline { padding-left: 24px; }
  .timeline-item { padding-left: 32px; padding-bottom: 32px; }
  .timeline-dot { left: -31px; width: 14px; height: 14px; }
  .diff-row { margin-bottom: 48px; padding-bottom: 48px; }
  .team-grid { grid-template-columns: 1fr 1fr !important; gap: 16px; }
  .team-info { padding: 16px; }
  .about-img-stack { overflow: hidden; }
  .about-img-accent { position: relative; width: 50% !important; bottom: auto !important; right: auto !important; margin: -20% 0 0 auto; border-radius: var(--radius-lg); box-shadow: 0 8px 24px rgba(0,0,0,0.3), 0 0 0 3px var(--dark); }
  .about-years-badge { left: 8px !important; top: 16px !important; padding: 12px 16px; }
  .about-years-badge .num { font-size: 36px; }
  .about-years-badge .txt { font-size: 9px; }
}

/* ---- Small phone (≤480px) ---- */
@media (max-width: 480px) {
  :root { --section-pad: 44px; }
  .container { padding: 0 16px; }
  .btn-lg { padding: 14px 24px; font-size: 13px; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .stat-num { font-size: 32px; }
  .stat-label { font-size: 10px; }
  .pd-spec-grid { grid-template-columns: 1fr !important; }
  .pd-gallery { grid-template-columns: 1fr 1fr !important; }
  .team-grid { grid-template-columns: 1fr !important; }
  .nav-logo-text { font-size: 16px; }
  .nav-logo-icon { width: 32px; height: 32px; font-size: 14px; }
  .testimonial-card { padding: 20px; }
  .advantage-card { padding: 20px; }
  .advantage-card h3 { font-size: 18px; }
  .service-card-body { padding: 20px !important; }
  .product-info { padding: 18px !important; }
  .portfolio-info { padding: 16px; }
  .portfolio-stats { gap: 12px; }
  .portfolio-stat-item .num { font-size: 18px; }
  .pricing-card { padding: 24px 16px !important; }
  .form-panel { padding: 20px 16px !important; }
  .map-overlay-info { position: static; max-width: 100%; margin: 0; }
  .map-container { height: 250px; }
  .page-hero { min-height: 260px; }
  .page-hero-content { padding: 40px 0 24px; }
  .label { font-size: 11px; margin-bottom: 12px; }
  .footer-top { padding: 40px 0 32px; }
  .footer-brand p { font-size: 13px; }
  .footer-col a { font-size: 13px; }
  .footer-contact-item span { font-size: 13px; }
  .footer-bottom p { font-size: 12px; }
  .footer-bottom-links a { font-size: 12px; }
  .cta-section { padding: 56px 0; }
  .cta-section p { font-size: 14px; }
  .stats-strip { padding: 32px 0; }
  .response-promise { flex-direction: column; text-align: center; gap: 10px; padding: 16px; }
  .response-promise svg { margin: 0 auto; }
  .hours-card { padding: 16px; }
  .hours-row { font-size: 12px; }
  .social-link-btn { padding: 8px 6px; font-size: 10px; }
  .social-link-btn svg { width: 14px; height: 14px; }
  .pd-spec-card { padding: 16px; }
  .pd-spec-value { font-size: 20px; }
  .pd-table th, .pd-table td { padding: 10px 12px; font-size: 12px; }
  .value-num { font-size: 40px; }
  .timeline { padding-left: 16px; }
  .timeline-item { padding-left: 24px; padding-bottom: 24px; }
  .timeline-dot { left: -23px; width: 12px; height: 12px; }
  .timeline-item h4 { font-size: 17px; }
  .timeline-item p { font-size: 13px; }
  .diff-row { margin-bottom: 32px; padding-bottom: 32px; }
  .mission-quote blockquote { font-size: 17px; }
  .mission-quote { padding-left: 16px; }
  .faq-question { font-size: 14px; }
  .faq-answer-inner { font-size: 13px; }
  .about-years-badge { padding: 10px 14px; }
  .about-years-badge .num { font-size: 30px; }
  .about-years-badge .txt { font-size: 8px; }
  .hero-badge { font-size: 11px; padding: 5px 14px 5px 5px; }
  .hero-badge span { font-size: 10px; padding: 3px 8px; }
  .hero-meta-num { font-size: 28px; }
  .hero-meta-label { font-size: 10px; }
  .hero-sub { font-size: 15px; }
  .scroll-indicator { bottom: 16px; }
  .scroll-dot { width: 18px; height: 28px; }
  .filter-btn { padding: 7px 14px; font-size: 11px; }
  .service-featured-body { padding: 24px !important; }
  .product-badge { font-size: 9px; padding: 3px 10px; top: 12px; left: 12px; }
  .service-card-icon { width: 44px; height: 44px; }
  .service-card-icon svg { width: 22px; height: 22px; }
  .service-features li { font-size: 13px; }
  .service-card-link { font-size: 12px; }
  .pricing-tier { font-size: 11px; }
  .pricing-card h3 { font-size: 22px; }
  .pricing-card .price { font-size: 36px !important; }
  .pricing-features li { font-size: 13px; }
  .check-item p { font-size: 14px; }
  .check-icon { width: 20px; height: 20px; }
  .check-icon svg { width: 10px; height: 10px; }
  .author-avatar { width: 40px; height: 40px; font-size: 14px; }
  .author-name { font-size: 13px; }
  .author-title { font-size: 11px; }
  .step-num { width: 52px; height: 52px; font-size: 20px; }
  .process-step h4 { font-size: 16px; }
  .process-step p { font-size: 13px; }
  .pd-related-body h4 { font-size: 14.5px; }
  .pd-related-body p { font-size: 12px; }
  .pd-cta-bar h3 { font-size: 20px; }
  .pd-cta-bar p { font-size: 13px; }
}

/* ---- Hero specific responsive (index.html) ---- */
@media (max-width: 768px) {
  .hero { min-height: auto; padding-bottom: 40px; }
  .hero-content { padding: 40px 0 80px !important; max-width: 100% !important; }
  .hero-meta { gap: 28px !important; padding-top: 24px !important; }
  .hero-meta-num { font-size: 30px !important; }
  .hero-sub { max-width: 100% !important; font-size: 14px !important; }
  .hero-actions { margin-bottom: 40px !important; }
  .hero-actions .btn { flex: 1 1 auto; }
  .hero h1 { font-size: clamp(30px, 8vw, 44px) !important; }
  .scroll-indicator { bottom: 16px !important; }
}

@media (max-width: 480px) {
  .hero-content { padding: 32px 0 70px !important; }
  .hero-meta { gap: 20px !important; }
  .hero-meta-num { font-size: 24px !important; }
  .hero-meta-label { font-size: 9px !important; }
  .hero-badge { font-size: 10px !important; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
}

/* ---- Project detail page responsive ---- */
@media (max-width: 1024px) {
  .pr-overview-grid { grid-template-columns: 1fr !important; gap: 40px; }
  .pr-facts-card { position: static !important; }
  .pr-gallery { grid-template-columns: repeat(2, 1fr) !important; }
  .pr-scope-grid { grid-template-columns: 1fr 1fr !important; }
  .pr-hero-stats { gap: 24px; }
  .pr-hero-stat .num { font-size: 26px; }
}

@media (max-width: 768px) {
  .project-hero { min-height: auto !important; padding-bottom: 40px; }
  .pr-title { font-size: clamp(28px, 8vw, 40px) !important; }
  .pr-subtitle { font-size: 15px !important; }
  .pr-hero-stats { gap: 20px; }
  .pr-hero-stat .num { font-size: 22px; }
  .pr-hero-stat .lbl { font-size: 10px; }
  .pr-overview-text h3 { font-size: 22px; }
  .pr-overview-text p { font-size: 15px; }
  .pr-facts-card { padding: 24px; }
  .pr-scope-grid { grid-template-columns: 1fr !important; }
  .pr-gallery { grid-template-columns: 1fr 1fr !important; }
  .pr-testimonial { padding: 32px; }
  .pr-testimonial-text { font-size: 17px; }
  .pr-cta-bar { padding: 40px 0; }
  .pr-cta-bar h3 { font-size: 22px; }
  .pr-cta-buttons { flex-direction: column; align-items: stretch; }
  .pr-cta-buttons .btn { width: 100%; justify-content: center; }
  .pr-fleet-table th, .pr-fleet-table td { padding: 12px 16px; font-size: 13px; }
  .pr-timeline { padding-left: 32px; }
  .pr-timeline::before { left: 10px; }
  .pr-timeline-dot { left: -28px; }
}

@media (max-width: 480px) {
  .pr-hero-stats { gap: 16px; }
  .pr-hero-stat .num { font-size: 20px; }
  .pr-gallery { grid-template-columns: 1fr !important; }
  .pr-testimonial { padding: 24px; }
  .pr-testimonial-text { font-size: 15px; }
  .pr-facts-card { padding: 20px; }
  .pr-fact-label { font-size: 12px; }
  .pr-fact-value { font-size: 13px; }
  .pr-scope-card { padding: 20px; }
}