/* ============================================
   REALK INC. — Main Stylesheet
   ============================================ */

/* ===== Variables ===== */
:root {
  --color-primary: #1a365d;
  --color-primary-light: #2c5282;
  --color-primary-dark: #142b4a;
  --color-accent: #dd6b20;
  --color-accent-light: #ed8936;
  --color-accent-dark: #c05621;
  --color-bg: #f7fafc;
  --color-surface: #ffffff;
  --color-text: #1a202c;
  --color-text-medium: #4a5568;
  --color-text-light: #718096;
  --color-border: #e2e8f0;
  --color-success: #2f855a;
  --color-success-bg: #f0fff4;
  --color-error: #c53030;
  --color-error-bg: #fff5f5;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.12);
  --radius: 8px;
  --radius-lg: 16px;
  --container: 1140px;
  --header-height: 68px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a:hover {
  color: var(--color-accent-dark);
}

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

ul { list-style: none; }

/* ===== Container ===== */
.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--header-height);
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  z-index: 1000;
  transition: var(--transition);
}

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

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* ===== Logo ===== */
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  color: var(--color-primary);
  font-weight: 800;
  font-size: 20px;
  letter-spacing: -0.02em;
}

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

.logo-icon {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
}

.logo-text span {
  color: var(--color-accent);
  font-weight: 600;
  font-size: 13px;
  margin-left: 4px;
  letter-spacing: 0.05em;
}

/* ===== Navigation ===== */
.main-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.main-nav a {
  color: var(--color-text-medium);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 16px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.main-nav a:hover {
  color: var(--color-primary);
  background: rgba(26, 54, 93, 0.06);
}

.main-nav a.active {
  color: var(--color-primary);
  font-weight: 600;
  background: rgba(221, 107, 32, 0.08);
}

/* ===== Mobile Menu Toggle ===== */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}

.menu-toggle span {
  width: 24px;
  height: 2.5px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: var(--transition);
}

.menu-toggle.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 6px);
}
.menu-toggle.open span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== Hero ===== */
.hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: calc(var(--header-height) + 80px) 0 100px;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(221, 107, 32, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(44, 82, 130, 0.4) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 820px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(221, 107, 32, 0.15);
  border: 1px solid rgba(221, 107, 32, 0.3);
  color: var(--color-accent-light);
  padding: 6px 16px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}

.hero-badge svg {
  width: 16px;
  height: 16px;
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.1;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.6;
  max-width: 680px;
  margin-bottom: 36px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 56px;
  padding-top: 36px;
  border-top: 1px solid rgba(255, 255, 255, 0.12);
}

.hero-stat {
  display: flex;
  flex-direction: column;
}

.hero-stat .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-accent-light);
  line-height: 1;
}

.hero-stat .label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 6px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ===== Page Hero ===== */
.page-hero {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  color: #fff;
  padding: calc(var(--header-height) + 60px) 0 64px;
  position: relative;
  overflow: hidden;
}

.page-hero::before {
  content: '';
  position: absolute;
  top: -30%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(221, 107, 32, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.page-hero .container {
  position: relative;
  z-index: 1;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: rgba(255, 255, 255, 0.7);
}

.breadcrumb a:hover {
  color: var(--color-accent-light);
}

.breadcrumb span {
  color: rgba(255, 255, 255, 0.4);
}

.page-hero h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.page-hero .lead {
  color: rgba(255, 255, 255, 0.75);
  font-size: 1.125rem;
  max-width: 640px;
}

/* ===== Sections ===== */
.section {
  padding: 80px 0;
}

.section-alt {
  background: var(--color-surface);
}

.section-sm {
  padding: 40px 0 80px;
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: 12px;
}

.section-header h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.lead {
  font-size: 1.125rem;
  color: var(--color-text-medium);
  line-height: 1.7;
}

/* ===== Split Layout ===== */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.split-reverse .split-content {
  order: 2;
}

.split-reverse .split-image {
  order: 1;
}

.split-content h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

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

.split-image {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 320px;
}

.split-image svg {
  width: 100%;
  max-width: 320px;
  height: auto;
}

/* ===== Grid ===== */
.grid {
  display: grid;
  gap: 28px;
}

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

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

/* ===== Info Cards ===== */
.info-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: var(--transition);
}

.section-alt .info-card {
  box-shadow: var(--shadow-sm);
}

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

.info-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: rgba(221, 107, 32, 0.1);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.info-card-icon svg {
  width: 26px;
  height: 26px;
}

.info-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.info-card p {
  font-size: 15px;
  color: var(--color-text-medium);
  line-height: 1.6;
}

/* ===== Service Cards ===== */
.service-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: rgba(221, 107, 32, 0.3);
}

.service-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  transition: var(--transition);
}

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

.service-card-icon svg {
  width: 26px;
  height: 26px;
}

.service-card h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 10px;
}

.service-card p {
  font-size: 14px;
  color: var(--color-text-medium);
  line-height: 1.6;
  margin-bottom: 16px;
  flex-grow: 1;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-accent);
}

.card-link svg {
  width: 16px;
  height: 16px;
  transition: var(--transition);
}

.card-link:hover {
  color: var(--color-accent-dark);
}

.card-link:hover svg {
  transform: translateX(4px);
}

/* ===== Feature Box ===== */
.feature-box {
  text-align: left;
}

.feature-box-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(26, 54, 93, 0.08);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.feature-box-icon svg {
  width: 24px;
  height: 24px;
}

.feature-box h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.feature-box p {
  font-size: 14px;
  color: var(--color-text-medium);
  line-height: 1.6;
}

/* ===== Feature List ===== */
.feature-list {
  margin-top: 24px;
}

.feature-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.feature-check {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(47, 133, 90, 0.12);
  color: var(--color-success);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

.feature-check svg {
  width: 14px;
  height: 14px;
}

.feature-item p {
  font-size: 15px;
  color: var(--color-text-medium);
  margin: 0;
}

.service-features {
  margin-top: 24px;
}

/* ===== CTA Banner ===== */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  text-align: center;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(221, 107, 32, 0.1) 0%, transparent 70%);
  pointer-events: none;
}

.cta-banner h2 {
  position: relative;
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.cta-banner p {
  position: relative;
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.0625rem;
  margin-bottom: 28px;
}

.cta-banner .btn-group {
  position: relative;
  justify-content: center;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--color-accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(221, 107, 32, 0.4);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.1);
  color: #fff;
  border: 1px solid rgba(255, 255, 255, 0.3);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.15);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

/* On light backgrounds */
.section .btn-secondary,
.section-alt .btn-secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-border);
}

.section .btn-secondary:hover,
.section-alt .btn-secondary:hover {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn-lg {
  padding: 14px 36px;
  font-size: 16px;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

/* ===== Process Timeline ===== */
.process-timeline {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 24px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: linear-gradient(90deg, var(--color-border) 0%, var(--color-accent) 50%, var(--color-border) 100%);
  z-index: 0;
}

.process-step {
  text-align: center;
  position: relative;
  z-index: 1;
}

.process-step-number {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-surface);
  border: 2px solid var(--color-accent);
  color: var(--color-accent);
  font-size: 16px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  transition: var(--transition);
}

.process-step:hover .process-step-number {
  background: var(--color-accent);
  color: #fff;
}

.process-step h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.process-step p {
  font-size: 14px;
  color: var(--color-text-medium);
  line-height: 1.55;
}

/* ===== Contact Layout ===== */
.contact-layout {
  display: grid;
  grid-template-columns: 380px 1fr;
  gap: 48px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-info-card {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: var(--transition);
}

.contact-info-card:hover {
  box-shadow: var(--shadow-sm);
}

.contact-info-card .icon {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(221, 107, 32, 0.1);
  color: var(--color-accent);
  display: flex;
  align-items: center;
  justify-content: center;
}

.contact-info-card .icon svg {
  width: 22px;
  height: 22px;
}

.contact-info-card .label {
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  margin-bottom: 4px;
}

.contact-info-card .value {
  font-size: 15px;
  color: var(--color-text);
  line-height: 1.5;
}

.contact-info-card .value a {
  color: var(--color-text);
}

.contact-info-card .value a:hover {
  color: var(--color-accent);
}

/* ===== Contact Form ===== */
.contact-form-wrapper {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.contact-form-wrapper h3 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-primary);
  margin-bottom: 8px;
}

.contact-form-wrapper > p {
  font-size: 15px;
  color: var(--color-text-medium);
  margin-bottom: 28px;
}

.form-success,
.form-error-banner {
  display: none;
  align-items: flex-start;
  gap: 12px;
  padding: 16px 20px;
  border-radius: var(--radius);
  margin-bottom: 24px;
  font-size: 14px;
  line-height: 1.5;
}

.form-success {
  background: var(--color-success-bg);
  border: 1px solid #c6f6d5;
  color: var(--color-success);
}

.form-error-banner {
  background: var(--color-error-bg);
  border: 1px solid #fed7d7;
  color: var(--color-error);
}

.form-success.show,
.form-error-banner.show {
  display: flex;
}

.form-success svg,
.form-error-banner svg {
  width: 22px;
  height: 22px;
  flex-shrink: 0;
  margin-top: 1px;
}

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

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

.form-label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.req {
  color: var(--color-error);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 12px 16px;
  font-size: 15px;
  font-family: inherit;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(221, 107, 32, 0.12);
}

.form-input.error,
.form-textarea.error {
  border-color: var(--color-error);
  background: var(--color-error-bg);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-light);
}

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

.form-error-msg {
  display: none;
  font-size: 13px;
  color: var(--color-error);
  margin-top: 4px;
}

.form-error-msg.show {
  display: block;
}

.form-submit {
  width: 100%;
  padding: 14px;
  font-size: 16px;
  margin-top: 8px;
  position: relative;
}

.form-submit:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.spinner {
  display: inline-block;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  margin-left: 8px;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.7);
  padding: 64px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 14px;
  font-weight: 700;
  color: #fff;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 16px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
}

.footer-col ul li a:hover {
  color: var(--color-accent-light);
}

.footer-contact-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 14px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
}

.footer-contact-item svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  color: rgba(255, 255, 255, 0.4);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 28px;
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* ===== Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-up.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Responsive: Tablet ===== */
@media (max-width: 1024px) {
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

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

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

  .process-timeline::before {
    display: none;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

/* ===== Responsive: Mobile ===== */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    flex-direction: column;
    background: #fff;
    padding: 16px;
    gap: 4px;
    box-shadow: var(--shadow-md);
    transform: translateY(-100%);
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
  }

  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .main-nav a {
    width: 100%;
    padding: 12px 16px;
  }

  .section {
    padding: 56px 0;
  }

  .split {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .split-reverse .split-content {
    order: 0;
  }

  .split-reverse .split-image {
    order: 0;
  }

  .split-image {
    padding: 28px;
    min-height: 240px;
  }

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

  .hero-stats {
    flex-wrap: wrap;
    gap: 24px;
  }

  .hero-stat .num {
    font-size: 1.5rem;
  }

  .cta-banner {
    padding: 40px 24px;
  }

  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }

  .contact-form-wrapper {
    padding: 28px 20px;
  }

  .process-timeline {
    grid-template-columns: 1fr 1fr;
  }

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

  .btn-group {
    flex-direction: column;
  }

  .btn-group .btn {
    width: 100%;
  }
}

/* ===== Responsive: Small Mobile ===== */
@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero {
    padding: calc(var(--header-height) + 48px) 0 64px;
  }

  .hero-stats {
    gap: 20px;
  }

  .process-timeline {
    grid-template-columns: 1fr;
  }

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