/* ========================================
   GRADEX — Vignelli Modernist Website
   ======================================== */

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

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

body {
  font-family: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
  background: #fefefe;
  color: #222222;
  line-height: 1;
  overflow-x: hidden;
}

section[id] {
  scroll-margin-top: 80px;
}

.content {
  max-width: 1520px;
  margin: 0 auto;
  padding: 0 80px;
}

/* ========================================
   Shared Section Typography
   ======================================== */

.section-heading {
  font-size: 32px;
  font-weight: 200;
  color: #222222;
  letter-spacing: 0.04em;
  line-height: 1.2;
  margin-bottom: 20px;
  text-transform: uppercase;
}

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

.section-desc {
  font-size: 16px;
  font-weight: 300;
  color: #444444;
  line-height: 1.6;
  letter-spacing: 0.02em;
  margin-bottom: 40px;
}

.section-desc-center {
  text-align: center;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.learn-more {
  display: inline-block;
  font-size: 12px;
  font-weight: 400;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  border-bottom: 1px solid #222222;
  padding-bottom: 3px;
}

.learn-more:hover {
  opacity: 0.4;
}

/* ========================================
   Navigation
   ======================================== */

.nav {
  background: #fefefe;
  border-bottom: none;
  padding-top: 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-inner {
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

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

.logo-img {
  height: 40px;
  width: auto;
  display: block;
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 40px;
}

.nav-item {
  font-size: 13px;
  font-weight: 400;
  color: #000000;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  text-decoration: none;
  white-space: nowrap;
}

.nav-item:hover {
  color: #888888;
}

.nav-item-active {
  color: #888888;
}

.nav-item-cta {
  padding: 9px 22px;
  margin-left: 12px;
  background: #222222;
  color: #ffffff;
}

.nav-item-cta:hover {
  background: #444444;
  color: #ffffff;
}

/* Hamburger toggle — hidden on desktop */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  background: none;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: #000000;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* ========================================
   Hero Section
   ======================================== */

.hero {
  background: #fefefe;
  padding: 80px 0 100px;
}

.hero-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
}

.hero-text {
  flex: 1;
  max-width: 520px;
}

.hero-title {
  font-size: 46px;
  font-weight: 200;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: 18px;
  font-weight: 300;
  color: #000000;
  letter-spacing: 0.02em;
  line-height: 1.4;
  margin-bottom: 45px;
}

.hero-device {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-device-img {
  height: 600px;
  width: auto;
  display: block;
  transform: rotate(-3deg);
  filter: drop-shadow(0 12px 40px rgba(0,0,0,0.10));
  transition: transform 0.3s ease;
}

.hero-device-img:hover {
  transform: rotate(0deg);
}

/* ========================================
   About Section — Dual Cameras + Ecosystem
   ======================================== */

.about-section {
  background: #f8f8f8;
  padding: 100px 0;
}

.about-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 80px;
}

.about-device-col {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.about-device-img {
  height: 520px;
  width: auto;
  display: block;
  transform: rotate(4deg);
  filter: drop-shadow(0 8px 30px rgba(0,0,0,0.08));
}

.about-text-col {
  flex: 1;
  max-width: 520px;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-bottom: 40px;
}

.about-feature-title {
  font-size: 14px;
  font-weight: 400;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 6px;
  line-height: 1.3;
}

.about-feature-desc {
  font-size: 14px;
  font-weight: 300;
  color: #444444;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

/* ========================================
   Features Grid
   ======================================== */

.features {
  background: #fefefe;
  padding: 100px 0;
}

.feature-grid {
  display: flex;
  justify-content: space-between;
  gap: 60px;
}

.feature-col {
  flex: 1;
  max-width: 360px;
}

.feature-title {
  font-size: 16px;
  font-weight: 400;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 10px;
  line-height: 1.3;
}

.feature-desc {
  font-size: 14px;
  font-weight: 300;
  color: #444444;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

/* ========================================
   Marketplace Banner (Homepage)
   ======================================== */

.marketplace-banner {
  background: #fefefe;
  padding: 100px 0;
  border-top: 1px solid #eeeeee;
  border-bottom: 1px solid #eeeeee;
}

.marketplace-banner-content {
  text-align: center;
}

.product-btn {
  display: inline-block;
  padding: 16px 48px;
  font-family: "Inter", sans-serif;
  font-size: 12px;
  font-weight: 400;
  color: #ffffff;
  background: #222222;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: background 0.2s;
}

.product-btn:hover {
  background: #444444;
}

.marketplace-banner .product-btn {
  margin-top: 10px;
}

/* ========================================
   Product Section — Three Tiers
   ======================================== */

.product-section {
  background: #fefefe;
  padding: 100px 0;
}

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

.product-tiers {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 60px;
}

.product-tier {
  flex: 1;
  max-width: 320px;
  border: 1px solid #e0e0e0;
  padding: 36px 28px 32px;
  text-align: center;
  position: relative;
  transition: box-shadow 0.3s ease;
  display: flex;
  flex-direction: column;
}

.product-tier:hover {
  box-shadow: 0 4px 24px rgba(0,0,0,0.06);
}

.product-tier-featured {
  border-color: #222222;
  background: #fafafa;
}

.product-tier-badge {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  background: #222222;
  color: #ffffff;
  font-size: 10px;
  font-weight: 400;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  padding: 6px 0;
  display: block;
}

.product-tier-name {
  font-size: 16px;
  font-weight: 400;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 6px;
}

.product-tier-price {
  font-size: 36px;
  font-weight: 200;
  color: #222222;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
}

.product-tier-device {
  margin-bottom: 24px;
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.product-tier-img {
  height: 140px;
  width: auto;
  display: block;
  filter: drop-shadow(0 4px 16px rgba(0,0,0,0.06));
}

.product-tier-features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  text-align: left;
}

.product-tier-features li {
  font-size: 13px;
  font-weight: 300;
  color: #555555;
  letter-spacing: 0.02em;
  line-height: 1.5;
  padding: 6px 0;
  border-bottom: 1px solid #f0f0f0;
}

.product-tier-features li:last-child {
  border-bottom: none;
}

.product-tier-features li strong {
  font-weight: 400;
  color: #222222;
}

.product-tier-btn {
  display: block;
  width: 100%;
  padding: 14px 40px;
  font-family: "Inter", sans-serif;
  font-size: 12px;
  font-weight: 400;
  color: #ffffff;
  background: #222222;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  text-decoration: none;
  transition: background 0.2s;
  margin-top: auto;
}

.product-tier-btn:hover {
  background: #444444;
}

.product-tier-btn-featured {
  background: #222222;
}

/* Purchase Form */
.purchase-form-wrap {
  max-width: 560px;
  margin: 0 auto 0;
  text-align: center;
}

.purchase-form-heading {
  font-size: 16px;
  font-weight: 400;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 24px;
}

.purchase-form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.purchase-form-row {
  display: flex;
  gap: 14px;
}

.purchase-input {
  flex: 1;
  padding: 14px 18px;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  font-weight: 300;
  color: #222222;
  background: #ffffff;
  border: 1px solid #cccccc;
  outline: none;
  letter-spacing: 0.02em;
}

.purchase-input:focus {
  border-color: #222222;
}

.purchase-input-sm {
  max-width: 80px;
  text-align: center;
}

.purchase-select {
  flex: 1;
  padding: 14px 18px;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  font-weight: 300;
  color: #222222;
  background: #ffffff;
  border: 1px solid #cccccc;
  outline: none;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.purchase-select:focus {
  border-color: #222222;
}

.purchase-submit {
  margin-top: 6px;
  width: 100%;
  cursor: pointer;
}

.purchase-message {
  margin-top: 16px;
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.02em;
}

.purchase-message.success {
  color: #2e7d32;
}

.purchase-message.error {
  color: #c62828;
}

/* ========================================
   Marketplace Page — Independent Page
   ======================================== */

.mp-header {
  background: #fefefe;
  padding: 80px 0 60px;
}

.mp-header-content {
  text-align: center;
}

.mp-header-title {
  font-size: 40px;
  font-weight: 200;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  line-height: 1.15;
  margin-bottom: 16px;
}

.mp-header-desc {
  font-size: 16px;
  font-weight: 300;
  color: #444444;
  line-height: 1.6;
  letter-spacing: 0.02em;
  max-width: 600px;
  margin: 0 auto 10px;
}

.mp-header-stats {
  display: flex;
  justify-content: center;
  gap: 60px;
  padding: 28px 0;
}

.mp-header-stat {
  text-align: center;
}

.mp-header-stat-num {
  display: block;
  font-size: 30px;
  font-weight: 200;
  color: #222222;
  letter-spacing: 0.02em;
  margin-bottom: 2px;
}

.mp-header-stat-label {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: #888888;
  text-transform: uppercase;
  letter-spacing: 0.10em;
}

/* Filter Bar */
.mp-filter {
  background: #f8f8f8;
  padding: 20px 0;
  border-top: 1px solid #eeeeee;
  border-bottom: 1px solid #eeeeee;
}

.mp-filter-content {
  display: flex;
  gap: 16px;
  align-items: center;
}

.mp-filter-select {
  padding: 10px 14px;
  font-family: "Inter", sans-serif;
  font-size: 12px;
  font-weight: 300;
  color: #222222;
  background: #ffffff;
  border: 1px solid #cccccc;
  outline: none;
  letter-spacing: 0.02em;
  cursor: pointer;
}

.mp-filter-select:focus {
  border-color: #222222;
}

.mp-filter-count {
  margin-left: auto;
  font-size: 12px;
  font-weight: 300;
  color: #888888;
  letter-spacing: 0.02em;
}

/* Listings Grid */
.mp-listings {
  background: #fefefe;
  padding: 50px 0 80px;
}

.mp-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.mp-card {
  background: #ffffff;
  border: 1px solid #e0e0e0;
  text-align: left;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}

.mp-card:hover {
  box-shadow: 0 4px 20px rgba(0,0,0,0.06);
}

.mp-card-banner {
  height: 130px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid #e0e0e0;
  transition: opacity 0.3s ease;
  overflow: hidden;
}

.mp-card-banner-img {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.mp-card:hover .mp-card-banner {
  opacity: 0.85;
}

.mp-card-sport {
  font-size: 10px;
  font-weight: 500;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.14em;
}

.mp-card-body {
  padding: 14px 16px 16px;
}

.mp-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 2px;
}

.mp-card-title {
  font-size: 14px;
  font-weight: 400;
  color: #222222;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.mp-card-year {
  font-size: 11px;
  font-weight: 300;
  color: #888888;
  letter-spacing: 0.02em;
  white-space: nowrap;
  margin-left: 8px;
}

.mp-card-set {
  font-size: 11px;
  font-weight: 300;
  color: #888888;
  letter-spacing: 0.02em;
  margin-bottom: 10px;
}

.mp-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 12px;
}

.mp-card-grade {
  font-size: 13px;
  font-weight: 400;
  color: #222222;
  letter-spacing: 0.04em;
}

.mp-card-condition {
  font-size: 10px;
  font-weight: 300;
  color: #888888;
  letter-spacing: 0.02em;
}

.mp-card-price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.mp-card-price {
  font-size: 18px;
  font-weight: 300;
  color: #222222;
  letter-spacing: 0.02em;
}

.mp-card-buy {
  padding: 8px 18px;
  font-family: "Inter", sans-serif;
  font-size: 10px;
  font-weight: 400;
  color: #ffffff;
  background: #222222;
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.10em;
  cursor: pointer;
  transition: background 0.2s;
}

.mp-card-buy:hover {
  background: #444444;
}

.mp-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid #eeeeee;
  padding-top: 10px;
}

.mp-card-seller {
  font-size: 10px;
  font-weight: 300;
  color: #888888;
  letter-spacing: 0.02em;
}

.mp-card-verified {
  font-size: 8px;
  font-weight: 400;
  color: #2e7d32;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* ========================================
   Social / Community Section
   ======================================== */

.social-section {
  background: #fefefe;
  padding: 100px 0;
}

.social-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  max-width: 900px;
  margin: 0 auto;
}

.social-card {
  border-top: 1px solid #dddddd;
  padding-top: 20px;
}

.social-card-title {
  font-size: 14px;
  font-weight: 400;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.social-card-desc {
  font-size: 14px;
  font-weight: 300;
  color: #444444;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.social-marketplace-link {
  text-align: center;
  margin-bottom: 40px;
}

/* Social Stats Bar */
.social-stats {
  display: flex;
  justify-content: center;
  gap: 80px;
  margin-bottom: 60px;
}

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

.social-stat-num {
  display: block;
  font-size: 36px;
  font-weight: 200;
  color: #222222;
  letter-spacing: 0.02em;
  margin-bottom: 4px;
}

.social-stat-label {
  display: block;
  font-size: 11px;
  font-weight: 400;
  color: #888888;
  text-transform: uppercase;
  letter-spacing: 0.10em;
}

/* ========================================
   Trade Section
   ======================================== */

.trading-section {
  background: #000000;
  padding: 100px 0;
}

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

.trading-section .section-heading {
  color: #ffffff;
}

.trading-section .section-desc {
  color: #aaaaaa;
}

.trading-steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px 80px;
  text-align: left;
  max-width: 1000px;
  margin: 0 auto;
}

.trading-step {
  border-top: 1px solid #333333;
  padding-top: 20px;
}

.step-num {
  font-size: 11px;
  font-weight: 400;
  color: #888888;
  letter-spacing: 0.10em;
  display: block;
  margin-bottom: 12px;
}

.step-title {
  font-size: 16px;
  font-weight: 400;
  color: #ffffff;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}

.step-desc {
  font-size: 14px;
  font-weight: 300;
  color: #aaaaaa;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

/* ========================================
   Tech Section — Precision Engineering
   ======================================== */

.tech-section {
  background: #f8f8f8;
  padding: 100px 0;
}

.tech-layout {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 80px;
}

.tech-text-col {
  flex: 1;
  max-width: 520px;
}

.tech-detail-list {
  display: flex;
  flex-direction: column;
  gap: 24px;
  margin-bottom: 40px;
}

.tech-detail-title {
  font-size: 14px;
  font-weight: 400;
  color: #222222;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 4px;
}

.tech-detail-desc {
  font-size: 14px;
  font-weight: 300;
  color: #444444;
  line-height: 1.5;
  letter-spacing: 0.02em;
}

.tech-device-col {
  flex: 1;
  display: flex;
  justify-content: center;
  align-items: center;
}

.tech-device-img {
  height: 540px;
  width: auto;
  display: block;
  transform: rotate(2deg);
  filter: drop-shadow(0 8px 30px rgba(0,0,0,0.08));
  transition: transform 0.3s ease;
}

.tech-device-img:hover {
  transform: rotate(0deg);
}

/* ========================================
   Contact Section
   ======================================== */

.contact-section {
  background: #fefefe;
  padding: 80px 0;
}

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

.contact-links {
  margin-top: 8px;
}

.contact-link {
  font-size: 28px;
  font-weight: 200;
  color: #222222;
  text-decoration: none;
  letter-spacing: 0.04em;
  border-bottom: 1px solid #222222;
  padding-bottom: 4px;
}

.contact-link:hover {
  opacity: 0.4;
}

/* ========================================
   Pre-order / Waitlist Section
   ======================================== */

.preorder-section {
  background: #f8f8f8;
  padding: 100px 0;
}

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

.subscribe-form {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  max-width: 500px;
  margin: 0 auto;
}

.subscribe-input {
  flex: 1;
  padding: 14px 18px;
  font-family: "Inter", sans-serif;
  font-size: 14px;
  font-weight: 300;
  color: #222222;
  background: #ffffff;
  border: 1px solid #cccccc;
  outline: none;
  letter-spacing: 0.02em;
}

.subscribe-input:focus {
  border-color: #222222;
}

.subscribe-btn {
  padding: 14px 28px;
  font-family: "Inter", sans-serif;
  font-size: 12px;
  font-weight: 400;
  color: #ffffff;
  background: #222222;
  border: none;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background 0.2s;
}

.subscribe-btn:hover {
  background: #444444;
}

.subscribe-message {
  margin-top: 16px;
  font-size: 13px;
  font-weight: 300;
  letter-spacing: 0.02em;
}

.subscribe-message.success {
  color: #2e7d32;
}

.subscribe-message.error {
  color: #c62828;
}

/* ========================================
   Scroll 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);
}

/* ========================================
   Footer
   ======================================== */

.footer {
  background: #000000;
  padding: 50px 0 35px;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  text-align: center;
}

.footer-brand-block {
  display: flex;
  align-items: center;
  gap: 14px;
}

.footer-logo-img {
  height: 60px;
  width: auto;
  display: block;
}

.footer-brand {
  font-size: 30px;
  font-weight: 200;
  color: #ffffff;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-copy {
  font-size: 11px;
  font-weight: 300;
  color: #888888;
  letter-spacing: 0.06em;
}

.footer-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 28px;
  margin-top: 4px;
}

.footer-link {
  font-size: 11px;
  font-weight: 300;
  color: #aaaaaa;
  letter-spacing: 0.10em;
  text-transform: uppercase;
  text-decoration: none;
}

.footer-link:hover {
  color: #ffffff;
}

/* ========================================
   Responsive Design
   ======================================== */

@media (max-width: 1024px) {
  .content {
    padding: 0 40px;
  }

  /* Nav switches to hamburger below 1024px — desktop menu gets cramped at tablet widths */
  .nav-toggle {
    display: flex;
  }
  .nav-right {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: #fefefe;
    border-bottom: 1px solid #eeeeee;
    padding: 4px 40px 20px;
  }
  .nav-right.open {
    display: flex;
  }
  .nav-item {
    font-size: 13px;
    padding: 12px 0;
    width: 100%;
  }
  .nav-item-cta {
    width: auto;
    padding: 10px 24px;
    margin-left: 0;
    margin-top: 10px;
  }

  .hero-layout {
    flex-direction: column;
    text-align: center;
  }
  .hero-text {
    max-width: 100%;
  }
  .hero-title {
    font-size: 36px;
  }
  .hero-device-img {
    height: 440px;
  }

  .about-layout {
    flex-direction: column;
    text-align: center;
  }
  .about-text-col {
    max-width: 100%;
  }
  .about-device-img {
    height: 380px;
  }

  .tech-layout {
    flex-direction: column-reverse;
    text-align: center;
  }
  .tech-text-col {
    max-width: 100%;
  }
  .tech-device-img {
    height: 400px;
  }

  .feature-grid {
    gap: 40px;
  }

  .mp-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  .content {
    padding: 0 24px;
  }

  .hero {
    padding: 60px 0 70px;
  }
  .hero-title {
    font-size: 28px;
  }
  .hero-subtitle {
    font-size: 16px;
  }
  .hero-device-img {
    height: 320px;
  }

  .nav-right {
    padding: 4px 24px 20px;
  }

  .about-section,
  .features,
  .social-section,
  .product-section,
  .trading-section,
  .tech-section,
  .preorder-section {
    padding: 60px 0;
  }

  .section-heading {
    font-size: 24px;
  }

  .about-device-img {
    height: 280px;
  }

  .feature-grid {
    flex-direction: column;
    gap: 30px;
  }
  .feature-col {
    max-width: 100%;
  }

  .social-stats {
    gap: 40px;
    flex-wrap: wrap;
  }
  .social-stat-num {
    font-size: 28px;
  }
  .social-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .product-tiers {
    flex-direction: column;
    align-items: center;
    gap: 20px;
  }
  .product-tier {
    max-width: 380px;
    width: 100%;
  }

  .purchase-form-row {
    flex-direction: column;
  }
  .purchase-input-sm {
    max-width: 100%;
  }

  .trading-steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .tech-device-img {
    height: 300px;
  }

  .contact-link {
    font-size: 20px;
  }

  .subscribe-form {
    flex-direction: column;
    gap: 10px;
  }
  .subscribe-input {
    width: 100%;
  }
  .subscribe-btn {
    width: 100%;
  }

  .mp-header {
    padding: 50px 0 40px;
  }
  .mp-header-title {
    font-size: 28px;
  }
  .mp-header-stats {
    gap: 30px;
    flex-wrap: wrap;
  }
  .mp-header-stat-num {
    font-size: 22px;
  }

  .mp-filter-content {
    flex-wrap: wrap;
    gap: 10px;
  }
  .mp-filter-select {
    flex: 1;
    min-width: 120px;
  }
  .mp-filter-count {
    margin-left: 0;
    width: 100%;
    text-align: center;
  }

  .mp-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
  }

  .mp-card-banner {
    height: 100px;
  }
}

@media (max-width: 480px) {
  .mp-grid {
    grid-template-columns: 1fr;
  }

  .hero-device-img {
    height: 240px;
  }

  .about-device-img {
    height: 200px;
  }

  .tech-device-img {
    height: 220px;
  }

  .product-tier-img {
    height: 100px;
  }

  .nav-right {
    gap: 10px;
  }
  .nav-item {
    font-size: 10px;
    letter-spacing: 0.06em;
  }

  .section-heading {
    font-size: 20px;
  }

  .social-stats {
    gap: 24px;
  }
}