/* ============================================
   AirPak Express Pte — Design System
   Colors from screenshot:
   #B4B1FF  Calm modern accent
   #FFCD00  Energetic yellow
   #495752  Balanced neutral
   #FFFFFF  Clean background
   #000000  Strong foundational
   ============================================ */

:root {
  --purple: #B4B1FF;
  --yellow: #FFCD00;
  --neutral: #495752;
  --neutral-dark: #3a4540;
  --black: #000000;
  --white: #FFFFFF;
  --gray-100: #f5f5f7;
  --gray-200: #e8e8ec;
  --gray-500: #8a8a9a;
  --gray-700: #3a3a4a;
  --radius: 16px;
  --radius-sm: 10px;
  --radius-lg: 24px;
  --shadow: 0 10px 40px rgba(0,0,0,0.12);
  --shadow-sm: 0 4px 16px rgba(0,0,0,0.08);
  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font);
  background: var(--white);
  color: var(--black);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input { font-family: inherit; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ========== BUTTONS ========== */
.btn-primary {
  background: var(--purple);
  color: var(--black);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 999px;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn-primary:hover {
  background: #a39fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(180,177,255,0.4);
}
.btn-primary.large { padding: 16px 32px; font-size: 16px; }
.btn-primary.full { width: 100%; }

.btn-outline {
  border: 1.5px solid var(--gray-200);
  color: var(--black);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 22px;
  border-radius: 999px;
  transition: all 0.15s;
}
.btn-outline:hover {
  border-color: var(--purple);
  background: rgba(180,177,255,0.1);
}
.btn-outline.large { padding: 16px 32px; font-size: 16px; }
.btn-outline.light {
  border-color: rgba(255,255,255,0.4);
  color: var(--white);
}
.btn-outline.light:hover {
  background: rgba(255,255,255,0.1);
  border-color: var(--white);
}

.btn-ghost {
  color: var(--gray-700);
  font-weight: 500;
  font-size: 15px;
  padding: 10px 16px;
}
.btn-ghost:hover { color: var(--black); }

/* ========== NAVBAR ========== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-200);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  font-size: 18px;
}
.logo-icon { font-size: 24px; }
.logo-text span { color: var(--purple); }
.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 15px;
  font-weight: 500;
  color: var(--gray-700);
  transition: color 0.15s;
}
.nav-links a:hover { color: var(--black); }
.nav-actions {
  display: flex;
  align-items: center;
  gap: 8px;
}
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.mobile-menu-btn span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--black);
  border-radius: 2px;
}
.mobile-menu {
  display: none;
  flex-direction: column;
  gap: 16px;
  padding: 24px;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
}
.mobile-menu a {
  font-size: 17px;
  font-weight: 500;
  padding: 8px 0;
}
.mobile-menu.open { display: flex; }

/* ========== HERO ========== */
.hero {
  padding: 60px 0 80px;
  background: linear-gradient(180deg, #fafafa 0%, var(--white) 100%);
  overflow: hidden;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.badge {
  display: inline-block;
  background: rgba(180,177,255,0.2);
  color: #5a57c0;
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}
.hero h1 {
  font-size: clamp(36px, 5vw, 52px);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}
.hero h1 .highlight {
  background: linear-gradient(90deg, var(--yellow), #ffb700);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 17px;
  color: var(--gray-500);
  max-width: 460px;
  margin-bottom: 28px;
}
.track-box {
  display: flex;
  gap: 10px;
  background: var(--white);
  border: 1.5px solid var(--gray-200);
  border-radius: 999px;
  padding: 6px 6px 6px 18px;
  max-width: 480px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 36px;
}
.track-input-wrap {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--gray-500);
}
.track-input-wrap input {
  border: none;
  outline: none;
  width: 100%;
  font-size: 15px;
  background: transparent;
}
.hero-stats {
  display: flex;
  gap: 36px;
}
.stat strong {
  display: block;
  font-size: 22px;
  font-weight: 700;
}
.stat span {
  font-size: 13px;
  color: var(--gray-500);
}

/* Phone mockup */
.phone-mockup {
  display: flex;
  justify-content: center;
  perspective: 1000px;
}
.phone-frame {
  width: 300px;
  background: #1a1a1a;
  border-radius: 36px;
  padding: 10px;
  box-shadow: 0 30px 60px rgba(0,0,0,0.25), 0 0 0 1px rgba(0,0,0,0.1);
  position: relative;
}
.phone-notch {
  position: absolute;
  top: 18px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 22px;
  background: #1a1a1a;
  border-radius: 20px;
  z-index: 5;
}
.phone-screen {
  background: #0d0d0d;
  border-radius: 28px;
  overflow: hidden;
  height: 580px;
  display: flex;
  flex-direction: column;
  position: relative;
}

/* App UI inside phone */
.app-header {
  background: var(--yellow);
  padding: 36px 18px 12px;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  border-radius: 28px 28px 0 0;
}
.app-user {
  display: flex;
  align-items: center;
  gap: 10px;
}
.avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 2px solid rgba(0,0,0,0.1);
}
.greeting { font-size: 12px; color: rgba(0,0,0,0.6); }
.name { font-size: 15px; font-weight: 700; }
.notif-btn {
  width: 36px;
  height: 36px;
  background: rgba(0,0,0,0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
}

.status-card {
  background: var(--yellow);
  padding: 0 18px 18px;
}
.status-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 14px;
}
.status-top h3 {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.02em;
}
.status-top p { font-size: 12px; color: rgba(0,0,0,0.55); }
.tag {
  font-size: 11px;
  font-weight: 600;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: lowercase;
}
.tag.in-transit {
  background: rgba(0,0,0,0.12);
  color: var(--black);
}
.tag.delivery {
  background: var(--purple);
  color: var(--black);
}
.status-mid {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 16px;
}
.parcel-info {
  display: flex;
  align-items: center;
  gap: 10px;
}
.parcel-icon {
  width: 40px;
  height: 40px;
  background: rgba(0,0,0,0.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.tracking-id { font-size: 14px; font-weight: 700; }
.label { font-size: 11px; color: rgba(0,0,0,0.5); }
.truck-icon { font-size: 42px; }

.progress-bar {
  display: flex;
  align-items: center;
  margin-bottom: 6px;
}
.progress-bar .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(0,0,0,0.2);
  flex-shrink: 0;
}
.progress-bar .dot.active { background: var(--black); }
.progress-bar .line {
  flex: 1;
  height: 3px;
  background: rgba(0,0,0,0.15);
}
.progress-bar .line.active { background: var(--black); }
.progress-labels {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: rgba(0,0,0,0.55);
  font-weight: 500;
}

.app-body {
  flex: 1;
  background: #0d0d0d;
  padding: 20px 18px;
  color: var(--white);
}
.section-title {
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
  color: #ccc;
}
.quick-actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 10px;
  margin-bottom: 22px;
}
.action {
  text-align: center;
}
.action span {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: #1f1f1f;
  border-radius: 14px;
  margin: 0 auto 6px;
  font-size: 20px;
}
.action p {
  font-size: 10px;
  color: #aaa;
}
.recent-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}
.recent-header a {
  font-size: 12px;
  color: var(--purple);
}
.recent-card {
  background: #1a1a1a;
  border-radius: 14px;
  padding: 12px;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.recent-left {
  display: flex;
  align-items: center;
  gap: 10px;
}
.item-icon {
  width: 40px;
  height: 40px;
  background: #2a2a2a;
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.item-name { font-size: 13px; font-weight: 600; }
.item-id { font-size: 11px; color: #888; }

.app-tabbar {
  display: flex;
  justify-content: space-around;
  padding: 10px 8px 18px;
  background: #0d0d0d;
  border-top: 1px solid #222;
}
.app-tabbar .tab {
  font-size: 12px;
  color: #666;
  padding: 6px 12px;
  border-radius: 20px;
}
.app-tabbar .tab.active {
  background: var(--purple);
  color: var(--black);
  font-weight: 600;
}

/* ========== TRACKING SECTION ========== */
.tracking-section {
  padding: 80px 0;
  background: var(--gray-100);
}
.section-header {
  text-align: center;
  margin-bottom: 48px;
}
.section-header h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 10px;
}
.section-header p {
  color: var(--gray-500);
  font-size: 16px;
}
.section-header.light h2,
.section-header.light p { color: var(--white); }
.section-header.light p { opacity: 0.7; }

.tracking-demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  max-width: 1000px;
  margin: 0 auto;
}

/* Map panel */
.map-panel {
  background: var(--neutral-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}
.map-header {
  padding: 20px 20px 12px;
  color: var(--white);
}
.map-header h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
}
.map-search {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.1);
  border-radius: 999px;
  padding: 10px 14px;
  color: rgba(255,255,255,0.6);
}
.map-search input {
  flex: 1;
  background: transparent;
  border: none;
  outline: none;
  color: var(--white);
  font-size: 14px;
}
.map-search input::placeholder { color: rgba(255,255,255,0.4); }
.mic { font-size: 14px; }

.map-area {
  flex: 1;
  position: relative;
  min-height: 320px;
}
.map-bg {
  position: absolute;
  inset: 0;
}
.map-svg {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.truck-on-map {
  position: absolute;
  bottom: 80px;
  left: 30%;
  font-size: 36px;
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.4));
  animation: truckMove 4s ease-in-out infinite alternate;
}
@keyframes truckMove {
  from { transform: translate(0, 0); }
  to { transform: translate(40px, -30px); }
}
.map-controls {
  position: absolute;
  right: 16px;
  top: 16px;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.map-controls button {
  width: 36px;
  height: 36px;
  background: rgba(255,255,255,0.9);
  border-radius: 10px;
  font-size: 18px;
  font-weight: 600;
  color: var(--black);
  box-shadow: var(--shadow-sm);
}
.locate-btn {
  position: absolute;
  right: 16px;
  bottom: 16px;
  width: 44px;
  height: 44px;
  background: var(--purple);
  border-radius: 50%;
  font-size: 18px;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
}
.map-footer {
  display: flex;
  justify-content: space-around;
  padding: 12px 8px 16px;
  background: #2a3330;
}
.tab-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  font-size: 18px;
  color: #888;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tab-btn.active {
  background: var(--purple);
  color: var(--black);
}

/* Details panel */
.details-panel {
  background: #0d0d0d;
  border-radius: var(--radius-lg);
  padding: 20px;
  color: var(--white);
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow);
}
.details-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}
.details-header h3 {
  font-size: 17px;
  font-weight: 600;
}
.back-btn, .more-btn {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #1f1f1f;
  color: #ccc;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.courier-card {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #1a1a1a;
  border-radius: var(--radius);
  padding: 14px;
  margin-bottom: 16px;
}
.courier-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
}
.courier-name { font-weight: 700; font-size: 15px; }
.courier-loc { font-size: 12px; color: #888; }

.tracking-id-card {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: #1a1a1a;
  border-radius: var(--radius);
  padding: 14px 16px;
  margin-bottom: 16px;
}
.big-id { font-size: 16px; font-weight: 700; letter-spacing: 0.02em; }
.copy-btn {
  width: 36px;
  height: 36px;
  background: #2a2a2a;
  border-radius: 10px;
  font-size: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.status-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
  padding: 0 4px;
}
.status-text { font-size: 16px; font-weight: 700; }
.eta { font-size: 13px; color: #888; }
.remaining {
  text-align: right;
}
.remaining strong {
  display: block;
  font-size: 18px;
  font-weight: 700;
  color: var(--yellow);
}
.remaining span { font-size: 12px; color: #888; }

.timeline {
  flex: 1;
  padding-left: 8px;
  margin-bottom: 20px;
}
.timeline-item {
  display: flex;
  gap: 14px;
  position: relative;
  padding-bottom: 22px;
}
.timeline-item:last-child { padding-bottom: 0; }
.timeline-item:not(:last-child)::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 16px;
  bottom: 0;
  width: 2px;
  background: #333;
}
.timeline-item.done:not(:last-child)::before,
.timeline-item.current:not(:last-child)::before {
  background: var(--purple);
}
.timeline-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #333;
  border: 3px solid #1a1a1a;
  flex-shrink: 0;
  margin-top: 2px;
  z-index: 1;
}
.timeline-item.done .timeline-dot {
  background: var(--purple);
}
.timeline-item.current .timeline-dot {
  background: var(--yellow);
  box-shadow: 0 0 0 4px rgba(255,205,0,0.25);
}
.tl-title { font-size: 14px; font-weight: 600; }
.tl-meta { font-size: 12px; color: #888; }

.action-buttons {
  display: flex;
  gap: 10px;
}
.action-buttons .btn-outline {
  flex: 1;
  border-color: #333;
  color: var(--white);
  font-size: 13px;
  padding: 12px 10px;
}
.action-buttons .btn-outline:hover {
  border-color: var(--purple);
  background: rgba(180,177,255,0.1);
}
.action-buttons .btn-primary {
  flex: 1;
  font-size: 13px;
  padding: 12px 10px;
}

/* ========== SERVICES ========== */
.services {
  padding: 80px 0;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}
.service-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.2s, box-shadow 0.2s;
}
.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.service-icon {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: 18px;
}
.service-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
}
.service-card p {
  font-size: 14px;
  color: var(--gray-500);
  margin-bottom: 16px;
  line-height: 1.55;
}
.link {
  font-size: 14px;
  font-weight: 600;
  color: #5a57c0;
}
.link:hover { text-decoration: underline; }

/* ========== LOCATIONS ========== */
.locations {
  padding: 80px 0;
  background: var(--neutral);
}
.locations-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.loc-card {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 24px;
  color: var(--white);
  transition: background 0.2s;
}
.loc-card:hover { background: rgba(255,255,255,0.12); }
.loc-icon { font-size: 28px; margin-bottom: 12px; }
.loc-card h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}
.loc-card p {
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 12px;
}
.hours {
  font-size: 12px;
  font-weight: 600;
  color: var(--yellow);
}

/* ========== ABOUT ========== */
.about {
  padding: 80px 0;
}
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.about-content h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}
.about-content > p {
  color: var(--gray-500);
  font-size: 16px;
  margin-bottom: 28px;
  max-width: 440px;
}
.features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.features li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}
.check {
  width: 28px;
  height: 28px;
  background: var(--purple);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  flex-shrink: 0;
}
.features strong {
  display: block;
  font-size: 15px;
  margin-bottom: 2px;
}
.features p {
  font-size: 13px;
  color: var(--gray-500);
}

.about-visual {
  position: relative;
  height: 360px;
}
.floating-card {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius);
  padding: 20px 24px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  min-width: 140px;
}
.floating-card span { font-size: 28px; }
.floating-card p { font-size: 13px; color: var(--gray-500); }
.floating-card strong { font-size: 22px; font-weight: 800; }
.card-1 {
  top: 20px;
  left: 40px;
  background: var(--yellow);
}
.card-2 {
  top: 120px;
  right: 20px;
}
.card-3 {
  bottom: 30px;
  left: 80px;
  background: var(--purple);
}

/* ========== CTA ========== */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, #1a1a1a 0%, #2a2a2a 100%);
  text-align: center;
  color: var(--white);
}
.cta h2 {
  font-size: clamp(28px, 4vw, 36px);
  font-weight: 800;
  margin-bottom: 12px;
}
.cta p {
  color: rgba(255,255,255,0.6);
  margin-bottom: 32px;
  font-size: 16px;
}
.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ========== FOOTER ========== */
.footer {
  background: #0d0d0d;
  color: var(--white);
  padding-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
}
.footer-brand p {
  margin-top: 14px;
  font-size: 14px;
  color: #888;
  max-width: 280px;
}
.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 16px;
  color: #ccc;
}
.footer-col a {
  display: block;
  font-size: 14px;
  color: #888;
  margin-bottom: 10px;
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--white); }
.footer-bottom {
  border-top: 1px solid #222;
  padding: 20px 0;
}
.footer-bottom p {
  font-size: 13px;
  color: #666;
}

/* ========== TOAST ========== */
.toast {
  position: fixed;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%) translateY(100px);
  background: var(--black);
  color: var(--white);
  padding: 12px 24px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  opacity: 0;
  transition: all 0.3s ease;
  z-index: 999;
  pointer-events: none;
}
.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ========== RESPONSIVE ========== */
@media (max-width: 960px) {
  .hero-grid,
  .tracking-demo,
  .about-grid {
    grid-template-columns: 1fr;
  }
  .phone-mockup { order: -1; }
  .phone-frame { width: 280px; }
  .phone-screen { height: 540px; }
  .services-grid,
  .locations-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .nav-links, .nav-actions { display: none; }
  .mobile-menu-btn { display: flex; }
  .about-visual { height: 300px; }
}

@media (max-width: 600px) {
  .services-grid,
  .locations-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .hero-stats { gap: 20px; }
  .track-box { flex-direction: column; border-radius: 16px; padding: 12px; }
  .track-box .btn-primary { width: 100%; }
  .action-buttons { flex-direction: column; }
  .cta-actions { flex-direction: column; align-items: center; }
  .cta-actions button { width: 100%; max-width: 280px; }
}