/*
Theme Name: FlagQR Custom Apparel
Theme URI: https://flagqr.com
Author: FlagQR
Description: Custom print-on-demand apparel store with QR code US flag designs. Built for WooCommerce + Printify integration.
Version: 1.0.2
Requires at least: 6.0
Tested up to: 6.5
Requires PHP: 8.0
License: GPL-2.0-or-later
Text Domain: flagqr
Tags: ecommerce, woocommerce, custom, apparel
*/

/* ============================================================
   CSS CUSTOM PROPERTIES
   ============================================================ */
:root {
  --color-bg:        #0a0a0a;
  --color-surface:   #111111;
  --color-card:      #1a1a1a;
  --color-border:    #2a2a2a;
  --color-text:      #f0ede8;
  --color-muted:     #888880;
  --color-accent:    #c8102e;      /* American red */
  --color-gold:      #b8960c;      /* Stars/flag gold */
  --color-white:     #ffffff;
  --color-navy:      #002868;      /* American navy */

  --font-display:    'Bebas Neue', 'Arial Narrow', sans-serif;
  --font-heading:    'Oswald', sans-serif;
  --font-body:       'DM Sans', sans-serif;
  --font-mono:       'JetBrains Mono', monospace;

  --radius-sm:   4px;
  --radius-md:   8px;
  --radius-lg:   16px;
  --radius-full: 9999px;

  --shadow-card: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-glow: 0 0 40px rgba(200,16,46,0.2);

  --transition: 0.25s cubic-bezier(0.4,0,0.2,1);
  --transition-slow: 0.5s cubic-bezier(0.4,0,0.2,1);
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::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(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: 0.02em;
}

.display-text {
  font-family: var(--font-display);
  letter-spacing: 0.05em;
}

/* ============================================================
   LAYOUT
   ============================================================ */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 24px;
}

.section { padding: 80px 0; }
.section--tight { padding: 48px 0; }
.section--loose { padding: 120px 0; }

/* ============================================================
   HEADER & NAV
   ============================================================ */
#site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: var(--transition);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 80px;
}

.site-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-right: 56px;
  font-size: 1.8rem;
  letter-spacing: 0;
  color: var(--color-white);
  font-family: var(--font-heading);
  word-spacing: 0;
}

.site-logo span { letter-spacing: 0; }

.site-logo .logo-flag {
  width: 48px;
  height: 32px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav a {
  font-family: var(--font-heading);
  font-size: 1.725rem !important;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-muted);
  transition: color var(--transition);
}

.main-nav a:hover { color: var(--color-white); }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.btn-cart {
  position: relative;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-text);
  transition: color var(--transition);
}

.cart-count {
  position: absolute;
  top: -8px; right: -10px;
  background: var(--color-accent);
  color: white;
  font-size: 0.65rem;
  font-weight: 700;
  width: 18px; height: 18px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.btn { 
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  font-family: var(--font-heading);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
}

.btn-primary {
  background: var(--color-accent);
  color: white;
}
.btn-primary:hover {
  background: #a50d26;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(200,16,46,0.35);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1px solid var(--color-border);
}
.btn-outline:hover {
  border-color: var(--color-text);
  background: rgba(255,255,255,0.05);
}

.btn-navy {
  background: var(--color-navy);
  color: white;
}
.btn-navy:hover {
  background: #003a8c;
  transform: translateY(-1px);
}

/* ============================================================
   HERO SECTION
   ============================================================ */
#hero {
  min-height: 100vh;
  padding-top: 72px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
}

.hero-model {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-end;
  padding: 60px 40px 0;
  overflow: hidden;
}

.hero-model--female { background: linear-gradient(160deg, #1a0a0e 0%, #0a0a0a 60%); }
.hero-model--male   { background: linear-gradient(160deg, #0a0a14 0%, #0a0a0a 60%); }

.hero-model__label {
  position: absolute;
  top: 40px; left: 40px;
  font-family: var(--font-display);
  font-size: 0.75rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-muted);
  border: 1px solid var(--color-border);
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.hero-model__img {
  max-height: 75vh;
  object-fit: contain;
  object-position: bottom;
  transition: transform var(--transition-slow);
  filter: drop-shadow(0 -20px 60px rgba(200,16,46,0.1));
}

.hero-model:hover .hero-model__img { transform: scale(1.03) translateY(-4px); }

.hero-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 10;
  text-align: center;
  pointer-events: none;
}

.hero-center__tagline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 7rem);
  line-height: 0.9;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-white);
  text-shadow: 0 0 60px rgba(200,16,46,0.4);
}

.hero-center__tagline span { color: var(--color-accent); }

.hero-center__sub {
  margin-top: 12px;
  font-family: var(--font-body);
  font-size: 0.9rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-muted);
}

.hero-divider {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  width: 1px;
  background: linear-gradient(to bottom, transparent, var(--color-accent), transparent);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.2em;
  color: var(--color-muted);
  animation: bounce 2s infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ============================================================
   CATEGORY ROWS
   ============================================================ */
#categories {
  background: var(--color-bg);
}

.category-row {
  margin-bottom: 64px;
}

.category-row__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}

.category-row__title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.category-row__title::before {
  content: '';
  display: inline-block;
  width: 4px;
  height: 1.2em;
  background: var(--color-accent);
  margin-right: 12px;
  vertical-align: middle;
}

.category-row__link {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  border-bottom: 1px solid transparent;
  transition: all var(--transition);
}
.category-row__link:hover { color: var(--color-accent); border-color: var(--color-accent); }

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

/* ============================================================
   PRODUCT CARD
   ============================================================ */
.product-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
  position: relative;
  cursor: pointer;
}

.product-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.product-card__thumb {
  position: relative;
  aspect-ratio: 3/4;
  overflow: hidden;
  background: #1a1a1a;
}

.product-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.product-card:hover .product-card__thumb img { transform: scale(1.06); }

.product-card__badge {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--color-accent);
  color: white;
  font-family: var(--font-mono);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.product-card__qr-icon {
  position: absolute;
  top: 12px; right: 12px;
  width: 32px; height: 32px;
  background: rgba(0,0,0,0.7);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  backdrop-filter: blur(4px);
}

.product-card__body {
  padding: 16px;
}

.product-card__name {
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  margin-bottom: 4px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.product-card__meta {
  font-size: 0.75rem;
  color: var(--color-muted);
  margin-bottom: 10px;
}

.product-card__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.product-card__price {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
}

.product-card__colors {
  display: flex;
  gap: 4px;
}

.color-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
}

.product-card__cta {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding: 16px;
  background: linear-gradient(to top, rgba(0,0,0,0.8), transparent 50%);
  opacity: 0;
  transition: opacity var(--transition);
}

.product-card:hover .product-card__cta { opacity: 1; }

/* ============================================================
   FEATURE STRIP
   ============================================================ */
.feature-strip {
  background: var(--color-accent);
  overflow: hidden;
  padding: 16px 0;
}

.feature-strip__track {
  display: flex;
  gap: 64px;
  animation: marquee 25s linear infinite;
  white-space: nowrap;
}

.feature-strip__item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 0.8rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: white;
  flex-shrink: 0;
}

@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ============================================================
   HOW IT WORKS
   ============================================================ */
#how-it-works {
  background: var(--color-surface);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  position: relative;
}

.steps-grid::before {
  content: '';
  position: absolute;
  top: 32px; left: 60px; right: 60px;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--color-border), transparent);
}

.step-card {
  text-align: center;
  padding: 32px 20px;
}

.step-card__number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px; height: 64px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-size: 1.8rem;
  color: var(--color-accent);
  margin: 0 auto 20px;
  background: var(--color-card);
  position: relative;
  z-index: 1;
}

.step-card__title {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 10px;
}

.step-card__desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.7;
}

/* ============================================================
   SECTION HEADER
   ============================================================ */
.section-header {
  text-align: center;
  margin-bottom: 56px;
}

.section-header__eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-header__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-white);
}

.section-header__desc {
  margin-top: 16px;
  font-size: 0.95rem;
  color: var(--color-muted);
  max-width: 540px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.7;
}

/* ============================================================
   FLAG PREVIEW
   ============================================================ */
.flag-preview-section {
  background: linear-gradient(135deg, #08080f 0%, #0a0a0a 50%, #100808 100%);
  padding: 100px 0;
  position: relative;
  overflow: hidden;
}

.flag-preview-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(200,16,46,0.08) 0%, transparent 70%);
}

.flag-demo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  position: relative;
  z-index: 1;
}

.flag-demo__visual {
  position: relative;
}

.flag-demo__controls { }

.flag-controls__title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.flag-controls__sub {
  color: var(--color-muted);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-bottom: 32px;
}

.form-group {
  margin-bottom: 20px;
}

.form-group label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-bottom: 8px;
}

.form-control {
  width: 100%;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 0.9rem;
  padding: 12px 16px;
  transition: border-color var(--transition);
  outline: none;
}

.form-control:focus { border-color: var(--color-accent); }
.form-control::placeholder { color: var(--color-muted); }

/* ============================================================
   FLAG SVG STYLES
   ============================================================ */
.flag-svg-wrapper {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-card);
}

.flag-svg-wrapper svg { width: 100%; height: auto; }

/* ============================================================
   FOOTER
   ============================================================ */
#site-footer {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}

.footer-brand__logo {
  font-family: var(--font-heading);
  font-size: 1.8rem;
  letter-spacing: 0;
  color: var(--color-white);
  margin-bottom: 12px;
}

.footer-brand__logo span { letter-spacing: 0; }

.footer-brand__desc {
  font-size: 0.85rem;
  color: var(--color-muted);
  line-height: 1.7;
  max-width: 260px;
}

.footer-col__title {
  font-family: var(--font-heading);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-white);
  margin-bottom: 16px;
}

.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a {
  font-size: 0.85rem;
  color: var(--color-muted);
  transition: color var(--transition);
}
.footer-col ul a:hover { color: var(--color-text); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 24px;
  border-top: 1px solid var(--color-border);
  font-size: 0.8rem;
  color: var(--color-muted);
}

.payment-icons { display: flex; gap: 8px; align-items: center; }
.payment-icon {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 4px 10px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-muted);
}

/* ============================================================
   MOBILE NAV TOGGLE
   ============================================================ */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ============================================================
   WOOCOMMERCE OVERRIDES
   ============================================================ */
.woocommerce .woocommerce-error,
.woocommerce .woocommerce-info,
.woocommerce .woocommerce-message {
  background: var(--color-card);
  border-top-color: var(--color-accent);
  color: var(--color-text);
}

.woocommerce form .form-row .input-text,
.woocommerce form .form-row select,
.woocommerce form .form-row textarea {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
}

.woocommerce #payment { background: var(--color-card); border-radius: var(--radius-md); }
.woocommerce #payment div.payment_box { background: rgba(255,255,255,0.03); }

.woocommerce button.button,
.woocommerce a.button,
.woocommerce input[type=submit] {
  background: var(--color-accent) !important;
  color: white !important;
  font-family: var(--font-heading) !important;
  font-size: 0.85rem !important;
  letter-spacing: 0.1em !important;
  text-transform: uppercase !important;
  border-radius: var(--radius-sm) !important;
  padding: 14px 28px !important;
  border: none !important;
  transition: all var(--transition) !important;
}

.woocommerce button.button:hover,
.woocommerce a.button:hover,
.woocommerce input[type=submit]:hover {
  background: #a50d26 !important;
  transform: translateY(-1px);
}

/* ============================================================
   SINGLE PRODUCT PAGE
   ============================================================ */
.product-customizer {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  margin: 24px 0;
}

.customizer-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-white);
}

.color-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 8px;
}

.color-swatch {
  width: 36px; height: 36px;
  border-radius: 50%;
  cursor: pointer;
  border: 2px solid transparent;
  transition: all var(--transition);
  position: relative;
}

.color-swatch.active,
.color-swatch:hover {
  border-color: var(--color-white);
  transform: scale(1.1);
}

.color-swatch .tooltip {
  position: absolute;
  bottom: 100%;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 0.65rem;
  white-space: nowrap;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--transition);
  margin-bottom: 6px;
}

.color-swatch:hover .tooltip { opacity: 1; }

.size-picker {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 8px;
}

.size-btn {
  min-width: 48px;
  padding: 8px 14px;
  background: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  text-transform: uppercase;
}

.size-btn.active,
.size-btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: white;
}

.qr-preview-box {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  text-align: center;
  margin-top: 16px;
}

.qr-preview-box canvas { 
  max-width: 160px; 
  margin: 0 auto;
  border-radius: var(--radius-sm);
}

.qr-preview-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-muted);
  margin-top: 10px;
}

/* ============================================================
   CART & CHECKOUT
   ============================================================ */
.woocommerce-cart table.cart,
.woocommerce-checkout table.shop_table {
  background: var(--color-card);
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.woocommerce table.shop_table th {
  background: var(--color-surface);
  color: var(--color-muted);
  font-family: var(--font-heading);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  font-weight: 600;
}

.woocommerce table.shop_table td { 
  border-top: 1px solid var(--color-border);
  color: var(--color-text);
}

/* ============================================================
   NOTIFICATIONS / TOAST
   ============================================================ */
.toast {
  position: fixed;
  bottom: 24px; right: 24px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  font-size: 0.85rem;
  max-width: 320px;
  z-index: 9999;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition);
}

.toast.show { transform: translateY(0); opacity: 1; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1100px) {
  .product-grid-4 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-grid::before { display: none; }
}

@media (max-width: 768px) {
  #hero { grid-template-columns: 1fr; min-height: auto; }
  .hero-model--male { display: none; }
  .hero-model { padding: 100px 20px 0; }
  .hero-center { position: relative; top: auto; left: auto; transform: none; padding: 40px 20px; }
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .flag-demo { grid-template-columns: 1fr; }
  .product-grid-4 { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 480px) {
  .product-grid-4 { grid-template-columns: 1fr 1fr; gap: 10px; }
  .section { padding: 48px 0; }
  .container { padding: 0 16px; }
}