/* ============================================================
   Eye Technology — Modern Design System
   Inspired by Habitat AI: soft blue gradients, section badges,
   generous whitespace, clean serif + sans-serif typography.
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=DM+Serif+Display:ital@0;1&display=swap');

/* ============================================================
   CSS Custom Properties
   ============================================================ */
:root {
  --color-primary:       #6B8BF5;
  --color-primary-hover: #5A7AE8;
  --color-primary-light: #EEF2FF;
  --color-primary-ultra-light: #F5F7FF;
  --color-secondary:     #1A2B50;
  --color-text:          #4A4A68;
  --color-heading:       #1A2B50;
  --color-light-bg:      #F7F9FC;
  --color-dark:          #0F1B33;
  --color-border:        #E5E9F2;
  --color-muted:         #8B8FA8;

  --font-heading: 'DM Serif Display', serif;
  --font-body:    'Inter', sans-serif;

  --container-max:  1140px;
  --header-height:  76px;
  --radius-sm:      8px;
  --radius-md:      12px;
  --radius-lg:      16px;
  --radius-xl:      24px;
  --radius-pill:    50px;
  --shadow-sm:      0 1px 3px rgba(0,0,0,0.04);
  --shadow-md:      0 4px 20px rgba(107,139,245,0.08);
  --shadow-lg:      0 8px 32px rgba(107,139,245,0.10);
  --shadow-xl:      0 16px 48px rgba(107,139,245,0.12);
  --transition-fast: 0.2s ease;
  --transition-med:  0.3s ease;

  --gradient-hero:  linear-gradient(135deg, #6B8BF5 0%, #8BA5FA 40%, #A7BDF5 100%);
  --gradient-hero-soft: linear-gradient(160deg, #6B8BF5 0%, #8BA5FA 50%, #B5CAF9 100%);
}

/* ============================================================
   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);
  font-size: 16px;
  font-weight: 400;
  color: var(--color-text);
  line-height: 1.7;
  background-color: #fff;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

a:hover {
  color: var(--color-primary);
}

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}

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

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  color: var(--color-heading);
  line-height: 1.25;
  font-weight: 400;
}

h1 { font-size: 48px; }
h2 { font-size: 40px; }
h3 { font-size: 28px; }
h4 { font-size: 22px; }
h5 { font-size: 18px; }
h6 { font-size: 16px; }

p {
  margin-bottom: 1rem;
}

p:last-child {
  margin-bottom: 0;
}

strong {
  font-weight: 600;
}

/* ============================================================
   Layout — Container
   ============================================================ */
.container {
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 20px;
  padding-right: 20px;
  width: 100%;
}

/* ============================================================
   Section Badge (Habitat AI style — small pill above heading)
   ============================================================ */
.section-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 16px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  margin-bottom: 16px;
  letter-spacing: 0.02em;
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 32px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-pill);
  transition: all var(--transition-fast);
  line-height: 1.4;
  text-align: center;
  white-space: nowrap;
  gap: 8px;
}

.btn-primary,
.btn-filled {
  background: var(--color-primary);
  border: 2px solid var(--color-primary);
  color: #fff;
  border-radius: var(--radius-pill);
  box-shadow: 0 4px 14px rgba(107,139,245,0.25);
}

.btn-primary:hover,
.btn-filled:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(107,139,245,0.35);
}

.btn-outline-blue {
  background: transparent;
  border: 2px solid var(--color-primary);
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  padding: 13px 32px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  transition: all var(--transition-fast);
}

.btn-outline-blue:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(107,139,245,0.35);
}

.btn-dark {
  background: transparent;
  border: 2px solid rgba(255,255,255,0.5);
  color: #fff;
  border-radius: var(--radius-pill);
}

.btn-dark:hover {
  background: #fff;
  border-color: #fff;
  color: var(--color-secondary);
}

.btn-white {
  background: #fff;
  border: 2px solid #fff;
  color: var(--color-primary);
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 14px;
  padding: 13px 32px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: all var(--transition-fast);
  box-shadow: 0 4px 14px rgba(0,0,0,0.08);
}

.btn-white:hover {
  background: rgba(255,255,255,0.9);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(0,0,0,0.12);
  color: var(--color-primary);
}

.btn-white .arrow {
  font-size: 18px;
  line-height: 1;
  transition: transform var(--transition-fast);
}

.btn-white:hover .arrow {
  transform: translateX(3px);
}

/* ============================================================
   Header & Navigation
   ============================================================ */
#site-header {
  position: sticky;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: #fff;
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow var(--transition-med);
}

.header-inner {
  display: flex;
  align-items: center;
  height: var(--header-height);
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

.header-logo {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
}

.header-logo a {
  display: block;
  line-height: 0;
}

.header-logo img {
  height: 38px;
  width: auto;
}

.header-nav {
  flex: 1;
  display: flex;
  justify-content: center;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 0;
}

.nav-item {
  position: relative;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 0 18px;
  height: var(--header-height);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-secondary);
  white-space: nowrap;
  transition: color var(--transition-fast);
  letter-spacing: 0.01em;
}

.nav-link:hover,
.nav-item:hover > .nav-link {
  color: var(--color-primary);
}

.nav-link .dropdown-arrow {
  display: inline-block;
  width: 0;
  height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 5px solid currentColor;
  margin-top: 1px;
  transition: transform var(--transition-fast);
}

.nav-item:hover > .nav-link .dropdown-arrow {
  transform: rotate(180deg);
}

/* Dropdown menu */
.dropdown-menu {
  position: absolute;
  top: 100%;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  min-width: 200px;
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-fast), visibility var(--transition-fast), transform var(--transition-fast);
  z-index: 200;
  padding: 8px 0;
  overflow: hidden;
}

.nav-item:hover > .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}

.dropdown-item a {
  display: block;
  padding: 10px 20px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.dropdown-item:last-child a {
  border-bottom: none;
}

.dropdown-item a:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* Header right — CTA button */
.header-right {
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 9px 22px;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-primary);
  transition: all var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
}

.header-cta:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
  box-shadow: 0 4px 12px rgba(107,139,245,0.3);
}

/* Search toggle */
.search-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  color: var(--color-secondary);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.search-toggle:hover {
  color: var(--color-primary);
  background: var(--color-primary-light);
}

.search-toggle svg {
  width: 18px;
  height: 18px;
  stroke: currentColor;
  fill: none;
  stroke-width: 2;
}

.search-overlay {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  width: 320px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  padding: 12px 14px;
  z-index: 300;
}

.search-overlay.active {
  display: flex;
  gap: 8px;
}

.search-overlay input[type="search"] {
  flex: 1;
  padding: 10px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 14px;
  outline: none;
  transition: border-color var(--transition-fast);
}

.search-overlay input[type="search"]:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(107,139,245,0.1);
}

.search-overlay button {
  padding: 10px 18px;
  background: var(--color-primary);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: background var(--transition-fast);
}

.search-overlay button:hover {
  background: var(--color-primary-hover);
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  width: 40px;
  height: 40px;
  cursor: pointer;
  gap: 5px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background-color: var(--color-secondary);
  border-radius: 2px;
  transition: transform var(--transition-med), opacity var(--transition-med);
}

.hamburger.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav drawer */
.mobile-nav {
  display: none;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  bottom: 0;
  background-color: #fff;
  overflow-y: auto;
  z-index: 999;
  padding: 16px 0;
  box-shadow: var(--shadow-xl);
}

.mobile-nav.active {
  display: block;
}

.mobile-nav-menu {
  display: flex;
  flex-direction: column;
}

.mobile-nav-item {
  border-bottom: 1px solid var(--color-border);
}

.mobile-nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 500;
  color: var(--color-secondary);
}

.mobile-nav-link .mobile-arrow {
  width: 0;
  height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 6px solid currentColor;
  transition: transform var(--transition-fast);
}

.mobile-nav-item.open > .mobile-nav-link .mobile-arrow {
  transform: rotate(180deg);
}

.mobile-dropdown {
  display: none;
  background-color: var(--color-light-bg);
}

.mobile-nav-item.open > .mobile-dropdown {
  display: block;
}

.mobile-dropdown a {
  display: block;
  padding: 14px 36px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid rgba(0,0,0,0.04);
}

.mobile-dropdown a:last-child {
  border-bottom: none;
}

.mobile-dropdown a:hover {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

/* ============================================================
   Sections
   ============================================================ */
.section {
  padding: 90px 0;
}

.section-light {
  background-color: var(--color-light-bg);
}

.section-dark {
  background-color: var(--color-dark);
  color: #fff;
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
  color: #fff;
}

.section-blue {
  background: var(--gradient-hero);
  color: #fff;
}

.section-blue h1,
.section-blue h2,
.section-blue h3,
.section-blue h4 {
  color: #fff;
}

.section-title {
  text-align: center;
  margin-bottom: 56px;
}

.section-title h2 {
  margin-bottom: 16px;
}

.section-title p {
  font-size: 17px;
  max-width: 680px;
  margin: 0 auto;
  color: var(--color-muted);
}

.section-dark .section-title p,
.section-blue .section-title p {
  color: rgba(255,255,255,0.8);
}

.section-title::after,
.section-title.underline::after {
  content: none;
}

/* ============================================================
   Grid / Card Layouts
   ============================================================ */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 30px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 30px;
}

/* Card — Habitat AI style */
.card {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-sm);
  transition: box-shadow var(--transition-med), transform var(--transition-med);
  overflow: hidden;
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-4px);
}

.card-img {
  width: 100%;
  height: 220px;
  object-fit: cover;
}

.card-body {
  padding: 28px;
}

.card-title {
  font-family: var(--font-heading);
  font-size: 20px;
  color: var(--color-heading);
  margin-bottom: 12px;
}

.card-text {
  font-size: 15px;
  color: var(--color-text);
  margin-bottom: 20px;
}

/* Product card */
.product-card {
  background-color: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  text-align: center;
  transition: box-shadow var(--transition-med), transform var(--transition-med);
  overflow: hidden;
}

.product-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-3px);
}

.product-card-img {
  width: 100%;
  height: 200px;
  object-fit: contain;
  padding: 20px;
  background-color: var(--color-light-bg);
}

.product-card-body {
  padding: 20px;
}

.product-card-title {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 600;
  color: var(--color-heading);
  margin-bottom: 8px;
}

.product-card-ref {
  font-size: 13px;
  color: var(--color-muted);
  margin-bottom: 14px;
}

/* ============================================================
   Two-Column Content Block
   ============================================================ */
.content-split {
  display: flex;
  align-items: center;
  gap: 60px;
}

.content-split.reverse {
  flex-direction: row-reverse;
}

.content-split-text {
  flex: 1;
}

.content-split-text h2 {
  margin-bottom: 16px;
}

.content-split-text p {
  color: var(--color-text);
  margin-bottom: 16px;
}

.content-split-media {
  flex: 0 0 45%;
}

.content-split-media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-xl);
}

/* ============================================================
   Banner / Page Hero — Habitat AI Style
   ============================================================ */
.page-banner {
  position: relative;
  background: var(--gradient-hero-soft);
  min-height: 300px;
  display: flex;
  align-items: center;
  overflow: hidden;
}

/* Decorative circles */
.page-banner::after {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  top: -100px;
  right: -100px;
}

.page-banner-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.1;
}

.page-banner-content {
  position: relative;
  z-index: 2;
  color: #fff;
}

.page-banner-content h1 {
  color: #fff;
  font-size: 48px;
}

.page-banner-content p {
  font-size: 18px;
  opacity: 0.9;
  margin-top: 10px;
  max-width: 600px;
}

/* ============================================================
   Checkmark Feature List (Habitat style)
   ============================================================ */
.check-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.check-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 10px 0;
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.6;
}

.check-list li::before {
  content: '';
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  margin-top: 2px;
  border-radius: 50%;
  background: var(--color-primary-light);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='14' height='14' viewBox='0 0 24 24' fill='none' stroke='%236B8BF5' stroke-width='3' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='20 6 9 17 4 12'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: center;
  background-size: 13px;
}

.check-list .label {
  font-weight: 600;
  color: var(--color-heading);
}

/* ============================================================
   Contact Form
   ============================================================ */
.contact-form {
  max-width: 700px;
}

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

.form-group label {
  display: block;
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-secondary);
  margin-bottom: 6px;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  color: var(--color-text);
  background-color: #fff;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(107,139,245,0.1);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-submit {
  margin-top: 8px;
}

/* ============================================================
   Footer
   ============================================================ */
#site-footer {
  background-color: var(--color-dark);
  color: #fff;
}

.footer-updated {
  background-color: rgba(255,255,255,0.04);
  text-align: center;
  padding: 10px 20px;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  font-family: var(--font-body);
  letter-spacing: 0.02em;
}

.footer-main {
  padding: 64px 0 40px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-col-title {
  font-family: var(--font-body);
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 20px;
  padding-bottom: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-brand img {
  height: 36px;
  width: auto;
  margin-bottom: 20px;
  filter: brightness(0) invert(1);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  line-height: 1.7;
  margin-bottom: 8px;
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}

.footer-contact-item a {
  color: rgba(255,255,255,0.6);
  transition: color var(--transition-fast);
}

.footer-contact-item a:hover {
  color: var(--color-primary);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.6);
  font-family: var(--font-body);
  transition: color var(--transition-fast);
  line-height: 1.4;
}

.footer-links a:hover {
  color: var(--color-primary);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
}

.footer-bottom-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

.footer-bottom-inner a {
  color: rgba(255,255,255,0.4);
  transition: color var(--transition-fast);
}

.footer-bottom-inner a:hover {
  color: var(--color-primary);
}

.footer-bottom-left {
  display: flex;
  align-items: center;
  gap: 20px;
}

.footer-bottom-right {
  font-family: var(--font-body);
}

/* ============================================================
   Breadcrumb
   ============================================================ */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  font-size: 13px;
  color: rgba(255,255,255,0.75);
  font-family: var(--font-body);
  padding: 12px 0 0;
}

.breadcrumb a {
  color: rgba(255,255,255,0.75);
  transition: color var(--transition-fast);
}

.breadcrumb a:hover {
  color: #fff;
}

.breadcrumb-sep {
  opacity: 0.6;
}

/* ============================================================
   Tabs
   ============================================================ */
.tabs {
  margin-bottom: 30px;
}

.tab-list {
  display: flex;
  border-bottom: 2px solid var(--color-border);
  flex-wrap: wrap;
  gap: 0;
}

.tab-btn {
  padding: 12px 24px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  cursor: pointer;
  transition: color var(--transition-fast), border-color var(--transition-fast);
  background: none;
}

.tab-btn.active,
.tab-btn:hover {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.tab-panel {
  display: none;
  padding-top: 30px;
}

.tab-panel.active {
  display: block;
}

/* ============================================================
   Accordion
   ============================================================ */
.accordion-item {
  border-bottom: 1px solid var(--color-border);
}

.accordion-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 0;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 17px;
  font-weight: 500;
  color: var(--color-heading);
  transition: color var(--transition-fast);
}

.accordion-header:hover {
  color: var(--color-primary);
}

.accordion-icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  position: relative;
  transition: transform var(--transition-fast);
}

.accordion-icon::before,
.accordion-icon::after {
  content: '';
  position: absolute;
  background-color: currentColor;
  border-radius: 2px;
}

.accordion-icon::before {
  width: 14px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.accordion-icon::after {
  width: 2px;
  height: 14px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.accordion-item.open .accordion-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
  opacity: 0;
}

.accordion-body {
  display: none;
  padding: 0 0 20px;
  font-size: 16px;
  color: var(--color-text);
  line-height: 1.7;
}

.accordion-item.open .accordion-body {
  display: block;
}

/* ============================================================
   Stats / Counter Row
   ============================================================ */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  text-align: center;
}

.stat-item {
  padding: 40px 20px;
  border-right: 1px solid rgba(255,255,255,0.08);
}

.stat-item:last-child {
  border-right: none;
}

.stat-number {
  font-family: var(--font-heading);
  font-size: 48px;
  color: var(--color-primary);
  line-height: 1;
  margin-bottom: 8px;
}

.stat-label {
  font-size: 15px;
  color: rgba(255,255,255,0.7);
}

/* ============================================================
   Utility Classes
   ============================================================ */
.text-center  { text-align: center; }
.text-left    { text-align: left; }
.text-right   { text-align: right; }

.text-white   { color: #fff !important; }
.text-primary { color: var(--color-primary) !important; }
.text-secondary { color: var(--color-secondary) !important; }
.text-muted   { color: var(--color-muted) !important; }

.bg-white     { background-color: #fff; }
.bg-light     { background-color: var(--color-light-bg); }
.bg-dark      { background-color: var(--color-dark); }
.bg-primary   { background-color: var(--color-primary); }

.mt-0  { margin-top: 0; }
.mt-1  { margin-top: 8px; }
.mt-2  { margin-top: 16px; }
.mt-3  { margin-top: 24px; }
.mt-4  { margin-top: 32px; }
.mt-5  { margin-top: 48px; }

.mb-0  { margin-bottom: 0; }
.mb-1  { margin-bottom: 8px; }
.mb-2  { margin-bottom: 16px; }
.mb-3  { margin-bottom: 24px; }
.mb-4  { margin-bottom: 32px; }
.mb-5  { margin-bottom: 48px; }

.pt-0  { padding-top: 0; }
.pb-0  { padding-bottom: 0; }

.d-flex         { display: flex; }
.align-center   { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.flex-wrap      { flex-wrap: wrap; }
.gap-2          { gap: 16px; }
.gap-3          { gap: 24px; }
.gap-4          { gap: 32px; }

.w-100   { width: 100%; }
.h-100   { height: 100%; }

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

.divider {
  height: 1px;
  background-color: var(--color-border);
  margin: 40px 0;
}

/* ============================================================
   Responsive — Tablet (<=1024px)
   ============================================================ */
@media (max-width: 1024px) {
  h1 { font-size: 36px; }
  h2 { font-size: 32px; }
  h3 { font-size: 22px; }

  .header-nav { display: none; }
  .header-cta { display: none; }
  .header-right .search-toggle { display: flex; }

  .hamburger {
    display: flex;
  }

  .header-logo {
    flex: 1;
  }

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

  .footer-brand {
    grid-column: 1 / -1;
  }

  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }

  .content-split {
    flex-direction: column;
    gap: 36px;
  }

  .content-split.reverse {
    flex-direction: column;
  }

  .content-split-media {
    flex: none;
    width: 100%;
  }

  .stats-row {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-item:nth-child(2) {
    border-right: none;
  }

  .stat-item:nth-child(3),
  .stat-item:nth-child(4) {
    border-top: 1px solid rgba(255,255,255,0.08);
  }
}

/* ============================================================
   Responsive — Mobile (<=767px)
   ============================================================ */
@media (max-width: 767px) {
  :root {
    --header-height: 64px;
  }

  h1 { font-size: 28px; }
  h2 { font-size: 26px; }
  h3 { font-size: 20px; }

  body { font-size: 15px; }

  .section { padding: 56px 0; }

  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .footer-brand {
    grid-column: auto;
  }

  .footer-bottom-inner {
    flex-direction: column;
    text-align: center;
    gap: 8px;
  }

  .footer-bottom-left {
    flex-direction: column;
    gap: 8px;
  }

  .stats-row {
    grid-template-columns: 1fr 1fr;
  }

  .page-banner {
    min-height: 220px;
  }

  .page-banner-content h1 {
    font-size: 28px;
  }

  .header-logo img {
    height: 32px;
  }

  .search-overlay {
    width: calc(100vw - 40px);
    right: 20px;
  }

  .tab-btn {
    padding: 10px 16px;
    font-size: 13px;
  }
}

/* ============================================================
   Print
   ============================================================ */
@media print {
  #site-header,
  #site-footer,
  .hero-controls,
  .hero-arrow,
  .hamburger {
    display: none !important;
  }
}