/* ==========================================================================
   GATI LOGISTICS LTD - PRODUCTION 60-30-10 DESIGN SYSTEM
   Fully Mobile Compatible & Responsive
   Company Number: 17160356 | 23 Cardwell Street, Sunderland, SR6 0JG
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@600;700;800;900&display=swap');

/* --- 60 - 30 - 10 Palette Tokens --- */
:root {
  /* [60% DOMINANT] Clean Canvas & Light Surfaces */
  --bg-page: #FFFFFF;
  --bg-subtle: #F8FAFC;
  --bg-card: #FFFFFF;
  --border-light: #E2E8F0;
  --border-medium: #CBD5E1;

  /* [30% SECONDARY] Deep Charcoal Slate (Typography, Headings, Shell, Footer) */
  --text-primary: #0F172A;
  --text-secondary: #334155;
  --text-muted: #64748B;
  --bg-dark: #0F172A;
  --bg-dark-surface: #1E293B;

  /* [10% ACCENT] Modern Courier Royal Blue (CTAs, Active States, Key Highlights ONLY) */
  --accent-primary: #2563EB;
  --accent-hover: #1D4ED8;
  --accent-light: #EFF6FF;
  --accent-border: #DBEAFE;
  --accent-text: #1E40AF;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

  /* Elevation */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.05);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.08), 0 2px 4px -2px rgba(15, 23, 42, 0.04);
  --shadow-lg: 0 10px 25px -5px rgba(15, 23, 42, 0.08), 0 8px 10px -6px rgba(15, 23, 42, 0.04);

  /* Layout Constants */
  --container-max: 1240px;
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;
  --transition: all 0.2s ease-in-out;
}

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

html, body {
  width: 100%;
  overflow-x: hidden;
  position: relative;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--text-secondary);
  background-color: var(--bg-page);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

main {
  flex-grow: 1;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* --- Layout Utility --- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

.section-spacing {
  padding-top: 5rem;
  padding-bottom: 5rem;
}

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

/* --- Top Announcement Bar (No Green Dot / 30% Slate) --- */
.top-bar {
  background-color: var(--bg-dark);
  color: #94A3B8;
  font-size: 0.82rem;
  padding: 0.65rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.top-bar-content {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.top-bar-left {
  font-weight: 500;
  color: #E2E8F0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.top-contacts {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.top-contacts a,
.top-contacts span {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: #CBD5E1;
}

.top-contacts a:hover {
  color: #FFFFFF;
}

/* --- Site Navigation --- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background-color: #FFFFFF;
  border-bottom: 1px solid var(--border-light);
  transition: var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-sm);
}

.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 78px;
}

.brand-logo {
  display: flex;
  align-items: center;
}

.brand-logo img,
.brand-logo svg {
  height: 40px;
  width: auto;
  max-width: 240px;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 2.2rem;
}

.nav-link {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 0;
  position: relative;
}

.nav-link:hover {
  color: var(--text-primary);
}

.nav-link.active {
  color: var(--text-primary);
  font-weight: 700;
}

.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 100%;
  height: 2.5px;
  background-color: var(--accent-primary);
  border-radius: 2px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.nav-phone-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.4rem 0.6rem;
}

.nav-phone-link:hover {
  color: var(--accent-primary);
}

.mobile-toggle {
  display: none;
  background: transparent;
  border: none;
  font-size: 1.35rem;
  color: var(--text-primary);
  cursor: pointer;
  padding: 0.5rem;
  min-width: 44px;
  min-height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.mobile-toggle:hover {
  background-color: var(--bg-subtle);
}

/* --- Buttons (Clean 60-30-10) --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  min-height: 44px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  transition: var(--transition);
  border: 1px solid transparent;
  white-space: nowrap;
  touch-action: manipulation;
}

/* 10% Accent CTA Button */
.btn-primary {
  background-color: var(--accent-primary);
  color: #FFFFFF;
  border-color: var(--accent-primary);
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.25);
}

/* Structural Neutral Outline Button */
.btn-outline {
  background-color: #FFFFFF;
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.btn-outline:hover {
  border-color: var(--text-primary);
  background-color: var(--bg-subtle);
}

.btn-dark {
  background-color: var(--text-primary);
  color: #FFFFFF;
  border-color: var(--text-primary);
}

.btn-dark:hover {
  background-color: #1E293B;
  border-color: #1E293B;
}

.btn-sm {
  padding: 0.45rem 1.15rem;
  min-height: 38px;
  font-size: 0.88rem;
}

.btn-lg {
  padding: 0.95rem 2rem;
  min-height: 48px;
  font-size: 1rem;
}

/* --- Section Headers & Pills --- */
.section-header {
  margin-bottom: 3.5rem;
}

.section-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: var(--radius-full);
  background-color: var(--accent-light);
  border: 1px solid var(--accent-border);
  color: var(--accent-text);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3.2vw, 2.65rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 1rem;
  word-break: break-word;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.6;
}

/* --- Unified Subpage Hero Banner --- */
.page-hero-banner {
  padding: 4rem 0 3.25rem;
  background-color: var(--bg-subtle);
  border-bottom: 1px solid var(--border-light);
  text-align: center;
}

.page-hero-banner h1 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 3.5vw, 2.85rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
  word-break: break-word;
}

.page-hero-banner p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  margin: 0 auto 1.5rem;
  line-height: 1.6;
}

.banner-chips {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  font-size: 0.86rem;
  color: var(--text-muted);
  padding-top: 1rem;
  border-top: 1px solid var(--border-light);
  max-width: 720px;
  margin: 0 auto;
}

.banner-chips span {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
}

.banner-chips i {
  color: var(--accent-primary);
}

/* --- Home Hero Section --- */
.hero-section {
  padding: 4.5rem 0 5rem;
  background-color: #FFFFFF;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3.5rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.4rem 0.9rem;
  background-color: var(--accent-light);
  border: 1px solid var(--accent-border);
  border-radius: var(--radius-full);
  color: var(--accent-text);
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
}

.hero-badge i {
  color: var(--accent-primary);
}

.hero-title {
  font-family: var(--font-heading);
  font-size: clamp(2.2rem, 4vw, 3.6rem);
  font-weight: 900;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--text-primary);
  margin-bottom: 1.25rem;
  word-break: break-word;
}

.hero-title span.text-highlight {
  position: relative;
  color: var(--text-primary);
}

.hero-title span.text-highlight::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 100%;
  height: 3px;
  background-color: var(--accent-primary);
  border-radius: 2px;
}

.hero-description {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  flex-wrap: wrap;
}

.hero-visual-frame {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  border: 1px solid var(--border-light);
  background-color: #FFFFFF;
}

.hero-visual-frame img {
  width: 100%;
  height: 460px;
  object-fit: cover;
  display: block;
}

/* --- Service & Content Cards (60% White Surface) --- */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 1fr));
  gap: 1.75rem;
}

.service-card {
  background-color: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2.25rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  border-color: var(--accent-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.service-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
  transition: var(--transition);
}

.service-card:hover .service-card-icon {
  background-color: var(--accent-light);
  color: var(--accent-primary);
  border-color: var(--accent-border);
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.service-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.6;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.service-card-link {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--accent-primary);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.service-card-link:hover {
  color: var(--accent-hover);
  gap: 0.6rem;
}

/* Service Detail Feature Row */
.service-feature-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3.5rem;
  align-items: center;
  margin-bottom: 4rem;
}

.service-feature-row:nth-child(even) {
  direction: rtl;
}

.service-feature-row:nth-child(even) > div {
  direction: ltr;
}

.service-feature-img {
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border-light);
  box-shadow: var(--shadow-sm);
}

.service-feature-img img {
  width: 100%;
  height: 360px;
  object-fit: cover;
}

/* --- UK Parcel Calculator (Minimal 60-30-10) --- */
.calc-card {
  background-color: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
}

.calc-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: start;
}

.mode-selector {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 130px), 1fr));
  gap: 0.75rem;
  margin-bottom: 1.75rem;
}

.mode-btn {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.85rem 0.5rem;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  min-height: 48px;
  touch-action: manipulation;
}

.mode-btn i {
  font-size: 1.15rem;
}

.mode-btn span {
  font-size: 0.8rem;
  font-weight: 600;
}

.mode-btn:hover {
  background-color: #FFFFFF;
  border-color: var(--border-medium);
  color: var(--text-primary);
}

.mode-btn.active {
  background-color: var(--accent-primary);
  border-color: var(--accent-primary);
  color: #FFFFFF;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
  margin-bottom: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
}

.form-group select,
.form-group input,
.form-group textarea {
  padding: 0.75rem 0.95rem;
  background-color: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 16px; /* 16px prevents mobile auto-zoom */
  min-height: 46px;
  transition: var(--transition);
}

.form-group select:focus,
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
}

.slider-group {
  margin-bottom: 1.5rem;
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.88rem;
  margin-bottom: 0.5rem;
  color: var(--text-secondary);
}

.slider-value {
  font-weight: 700;
  color: var(--text-primary);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent-primary);
  min-height: 36px;
}

/* Calculator Summary Panel */
.calc-summary-panel {
  background-color: var(--bg-subtle);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  padding: 2rem;
}

.summary-heading {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
}

.summary-heading h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.rate-badge {
  font-size: 0.75rem;
  font-weight: 700;
  background-color: var(--accent-light);
  color: var(--accent-text);
  border: 1px solid var(--accent-border);
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
}

.price-box {
  background-color: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 1.5rem;
  text-align: center;
  margin-bottom: 1.5rem;
}

.price-sub {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 0.25rem;
}

.price-val {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 800;
  color: var(--text-primary);
}

.price-val span {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-muted);
}

.summary-details {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 1.75rem;
  font-size: 0.9rem;
}

.summary-row {
  display: flex;
  justify-content: space-between;
  padding-bottom: 0.5rem;
  border-bottom: 1px solid var(--border-light);
}

.summary-row span:first-child {
  color: var(--text-muted);
}

.summary-row span:last-child {
  font-weight: 600;
  color: var(--text-primary);
}

/* --- FAQ Accordion --- */
.faq-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  max-width: 820px;
  margin: 0 auto;
}

.faq-card {
  background-color: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: var(--transition);
}

.faq-card:hover {
  border-color: var(--border-medium);
}

.faq-head {
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  user-select: none;
}

.faq-head h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

.faq-icon {
  font-size: 0.9rem;
  color: var(--text-muted);
  transition: transform 0.2s ease;
}

.faq-card.open .faq-icon {
  transform: rotate(180deg);
  color: var(--accent-primary);
}

.faq-body {
  display: none;
  padding: 0 1.5rem 1.5rem;
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.65;
}

.faq-card.open .faq-body {
  display: block;
}

/* --- Site Footer (30% Slate Dark Chrome) --- */
.site-footer {
  background-color: var(--bg-dark);
  color: #94A3B8;
  padding-top: 4.5rem;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 3rem;
  margin-bottom: 3.5rem;
}

.footer-brand p {
  margin-top: 1rem;
  font-size: 0.92rem;
  line-height: 1.6;
  color: #CBD5E1;
}

.footer-heading {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1.25rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.footer-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-size: 0.9rem;
}

.footer-list a {
  color: #CBD5E1;
}

.footer-list a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.75rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.85rem;
}

.footer-bottom a {
  color: #CBD5E1;
}

.footer-bottom a:hover {
  color: #FFFFFF;
}

/* --- Mobile Drawer Navigation (100% Isolated Off-Screen) --- */
.drawer-mask {
  position: fixed;
  inset: 0;
  background-color: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(4px);
  z-index: 1500;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.drawer-mask.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 86vw);
  height: 100vh;
  height: 100dvh;
  background-color: #FFFFFF;
  z-index: 1600;
  padding: 2rem 1.5rem;
  box-shadow: -6px 0 24px rgba(15, 23, 42, 0.15);
  display: flex;
  flex-direction: column;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateX(100%);
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  visibility: hidden;
}

.mobile-drawer.open {
  transform: translateX(0);
  visibility: visible;
}

.drawer-close {
  align-self: flex-end;
  background: transparent;
  border: none;
  font-size: 1.35rem;
  color: var(--text-primary);
  cursor: pointer;
  margin-bottom: 2rem;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
}

.drawer-close:hover {
  background-color: var(--bg-subtle);
}

.drawer-nav {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  font-size: 1.05rem;
  font-weight: 600;
}

.drawer-nav a {
  padding: 0.5rem 0;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
}

.drawer-nav a.active {
  color: var(--accent-primary);
  font-weight: 700;
}

/* --- Toast Feedback Container --- */
.toast-container {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  left: 1.5rem;
  max-width: 420px;
  margin-left: auto;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  pointer-events: none;
}

.toast {
  background-color: #FFFFFF;
  border: 1px solid var(--border-light);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1.25rem;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
  pointer-events: auto;
}

/* ==========================================================================
   Comprehensive Responsive Media Queries
   ========================================================================== */

/* Tablet & Smaller Desktop (<= 992px) */
@media (max-width: 992px) {
  .hero-grid,
  .calc-grid,
  .service-feature-row {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }

  .service-feature-row:nth-child(even) {
    direction: ltr;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem;
  }

  .hero-visual-frame img {
    height: 360px;
  }
}

/* Mobile Devices (<= 768px) */
@media (max-width: 768px) {
  .top-bar { 
    display: none; 
  }

  .navbar {
    height: 68px;
  }

  .nav-menu, 
  .nav-phone-link { 
    display: none; 
  }

  .mobile-toggle { 
    display: flex; 
  }

  .section-spacing {
    padding-top: 3.5rem;
    padding-bottom: 3.5rem;
  }

  .hero-section {
    padding: 3rem 0 3.5rem;
  }

  .hero-title {
    font-size: clamp(2rem, 6.5vw, 2.5rem);
    line-height: 1.2;
  }

  .hero-description {
    font-size: 1.05rem;
    line-height: 1.6;
    margin-bottom: 1.75rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
    gap: 0.75rem;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-visual-frame img {
    height: 260px;
  }

  .page-hero-banner {
    padding: 2.75rem 0 2.25rem;
  }

  .page-hero-banner h1 {
    font-size: clamp(1.85rem, 6vw, 2.25rem);
  }

  .banner-chips {
    flex-direction: column;
    gap: 0.65rem;
    align-items: center;
    text-align: center;
  }

  .calc-card {
    padding: 1.75rem 1.25rem;
  }

  .mode-selector {
    grid-template-columns: 1fr 1fr;
    gap: 0.6rem;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
  }

  .calc-summary-panel {
    padding: 1.35rem 1rem;
  }

  .price-val {
    font-size: 1.95rem;
  }

  .service-feature-row {
    gap: 2rem;
    margin-bottom: 3rem;
  }

  .service-feature-img img {
    height: 240px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
    gap: 0.75rem;
  }
}

/* Small Mobile Screens (<= 480px) */
@media (max-width: 480px) {
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .navbar {
    height: 64px;
  }

  .brand-logo img,
  .brand-logo svg {
    height: 32px;
    max-width: 160px;
  }

  .nav-actions .btn-sm {
    padding: 0.4rem 0.75rem;
    font-size: 0.82rem;
    min-height: 36px;
  }

  .hero-title {
    font-size: 1.95rem;
  }

  .section-title {
    font-size: 1.75rem;
  }

  .hero-visual-frame img {
    height: 220px;
  }

  .mode-selector {
    grid-template-columns: 1fr;
    gap: 0.5rem;
  }

  .mode-btn {
    flex-direction: row;
    justify-content: flex-start;
    padding: 0.75rem 1rem;
    gap: 0.75rem;
  }
}