/* ============================================
   Particle Lift - Professional Website Styles
   ============================================ */

/* --- CSS Variables --- */
:root {
  --color-primary-dark: #0b1d33;
  --color-primary: #1a3a6b;
  --color-primary-medium: #234b8a;
  --color-accent: #2d7dd2;
  --color-accent-light: #5a9fe6;
  --color-accent-glow: rgba(45, 125, 210, 0.15);
  --color-accent-amber: #d4941e;
  --color-accent-amber-light: #f0b73e;
  --color-light: #f0f5fb;
  --color-light-alt: #e8f0f8;
  --color-white: #ffffff;
  --color-text: #1e293b;
  --color-text-muted: #546a84;
  --color-text-light: #94a8c0;
  --color-border: #dce5ef;
  --color-success: #10b981;
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --shadow-sm: 0 1px 3px rgba(11, 29, 51, 0.06);
  --shadow-md: 0 4px 20px rgba(11, 29, 51, 0.08);
  --shadow-lg: 0 10px 40px rgba(11, 29, 51, 0.12);
  --shadow-xl: 0 20px 60px rgba(11, 29, 51, 0.15);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
}

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

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

body {
  font-family: var(--font-primary);
  font-size: 16px;
  line-height: 1.7;
  color: var(--color-text);
  background: var(--color-white);
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

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

.section {
  padding: 100px 0;
}

.section-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 12px;
  position: relative;
}

.section-label::after {
  content: '';
  display: inline-block;
  width: 30px;
  height: 2px;
  background: var(--color-accent);
  margin-left: 12px;
  vertical-align: middle;
}

.section-title {
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-primary-dark);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 640px;
  line-height: 1.8;
}

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

.text-center .section-subtitle {
  margin: 0 auto;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  font-weight: 600;
  line-height: 1;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 14px rgba(45, 125, 210, 0.35);
}

.btn-primary:hover {
  background: var(--color-primary-medium);
  box-shadow: 0 6px 24px rgba(45, 125, 210, 0.45);
  transform: translateY(-2px);
  color: var(--color-white);
}

.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
  border-color: var(--color-white);
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
  color: var(--color-white);
}

.btn-secondary {
  background: var(--color-white);
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
  color: var(--color-primary);
}

/* ============================================
   HEADER & NAVIGATION
   ============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(11, 29, 51, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}

.header.scrolled {
  background: rgba(11, 29, 51, 0.98);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--color-white);
  text-decoration: none;
  letter-spacing: -0.3px;
}

.logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  font-size: 1rem;
  color: var(--color-white);
}

.logo span {
  color: var(--color-accent-light);
}

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

.nav a {
  color: rgba(255, 255, 255, 0.75);
  font-size: 0.9rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
  position: relative;
  padding: 4px 0;
}

.nav a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  transition: var(--transition);
}

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

.nav a:hover::after {
  width: 100%;
}

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

.nav a.active::after {
  width: 100%;
}

.mobile-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

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

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--color-primary-dark);
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  z-index: 1;
}

.hero-bg-glow {
  position: absolute;
  top: -30%;
  right: -20%;
  width: 70%;
  height: 120%;
  background: radial-gradient(ellipse at center, rgba(45, 125, 210, 0.12) 0%, transparent 70%);
  z-index: 1;
  pointer-events: none;
}

.hero-bg-glow-2 {
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 50%;
  height: 80%;
  background: radial-gradient(ellipse at center, rgba(212, 148, 30, 0.06) 0%, transparent 70%);
  z-index: 1;
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 120px 24px 80px;
  width: 100%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 18px;
  background: rgba(45, 125, 210, 0.15);
  border: 1px solid rgba(45, 125, 210, 0.25);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent-light);
  margin-bottom: 32px;
}

.hero-badge-dot {
  width: 6px;
  height: 6px;
  background: var(--color-success);
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: 4rem;
  font-weight: 800;
  line-height: 1.08;
  color: var(--color-white);
  letter-spacing: -1.5px;
  margin-bottom: 24px;
  max-width: 900px;
}

.hero h1 .highlight {
  background: linear-gradient(135deg, var(--color-accent-light), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero p {
  font-size: 1.2rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.65);
  max-width: 640px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 64px;
  padding-top: 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-stat-number {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-white);
  line-height: 1;
  margin-bottom: 6px;
}

.hero-stat-label {
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.5);
}

/* ============================================
   ABOUT SECTION
   ============================================ */
.about {
  background: var(--color-white);
  position: relative;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  position: relative;
}

.about-visual-box {
  position: relative;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  border-radius: var(--radius-lg);
  padding: 48px;
  color: var(--color-white);
  min-height: 360px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.about-visual-box::before {
  content: '';
  position: absolute;
  top: -12px;
  left: -12px;
  right: 12px;
  bottom: 12px;
  border: 2px solid var(--color-accent);
  border-radius: calc(var(--radius-lg) + 6px);
  z-index: -1;
  opacity: 0.3;
}

.about-visual-box .big-number {
  font-size: 5rem;
  font-weight: 800;
  color: rgba(255, 255, 255, 0.06);
  position: absolute;
  top: 24px;
  right: 32px;
  line-height: 1;
  letter-spacing: -3px;
}

.about-visual-box h3 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.about-visual-box p {
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  line-height: 1.8;
}

.about-text h2 {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  line-height: 1.25;
  margin-bottom: 24px;
  letter-spacing: -0.5px;
}

.about-text p {
  color: var(--color-text-muted);
  margin-bottom: 16px;
  line-height: 1.8;
}

.about-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
}

.about-detail-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding: 16px;
  background: var(--color-light);
  border-radius: var(--radius-sm);
}

.about-detail-icon {
  width: 40px;
  height: 40px;
  background: var(--color-accent);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-white);
  font-size: 1.1rem;
  font-weight: 700;
}

.about-detail-item h4 {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 4px;
}

.about-detail-item p {
  font-size: 0.82rem;
  margin-bottom: 0;
  color: var(--color-text-muted);
}

/* ============================================
   EXPERTISE / SERVICES SECTION
   ============================================ */
.expertise {
  background: var(--color-light);
  position: relative;
}

.expertise-header {
  text-align: center;
  margin-bottom: 60px;
}

.expertise-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.expertise-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 40px 32px;
  transition: var(--transition);
  border: 1px solid var(--color-border);
  position: relative;
  overflow: hidden;
}

.expertise-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: var(--transition);
}

.expertise-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.expertise-card:hover::before {
  transform: scaleX(1);
}

.expertise-icon {
  width: 56px;
  height: 56px;
  background: var(--color-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  font-size: 1.5rem;
  transition: var(--transition);
}

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

.expertise-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 12px;
}

.expertise-card p {
  font-size: 0.92rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

.expertise-list {
  margin-top: 16px;
}

.expertise-list li {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  padding: 6px 0;
  padding-left: 20px;
  position: relative;
}

.expertise-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 14px;
  width: 8px;
  height: 8px;
  background: var(--color-accent);
  border-radius: 50%;
  opacity: 0.5;
}

/* ============================================
   VALUES SECTION
   ============================================ */
.values {
  background: var(--color-primary-dark);
  color: var(--color-white);
  position: relative;
  overflow: hidden;
}

.values::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(135deg, transparent, rgba(45, 125, 210, 0.05));
  pointer-events: none;
}

.values .section-label {
  color: var(--color-accent-light);
}

.values .section-title {
  color: var(--color-white);
}

.values .section-subtitle {
  color: rgba(255, 255, 255, 0.6);
}

.values-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  margin-top: 48px;
}

.value-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: var(--transition);
}

.value-card:hover {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(45, 125, 210, 0.2);
  transform: translateY(-4px);
}

.value-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: 16px;
  opacity: 0.6;
}

.value-card h3 {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-white);
}

.value-card p {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.55);
  line-height: 1.7;
}

/* ============================================
   CONTACT SECTION
   ============================================ */
.contact {
  background: var(--color-white);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
}

.contact-info h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.contact-info > p {
  color: var(--color-text-muted);
  margin-bottom: 36px;
  line-height: 1.8;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.contact-item {
  display: flex;
  gap: 16px;
  align-items: flex-start;
}

.contact-item-icon {
  width: 48px;
  height: 48px;
  background: var(--color-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  font-size: 1.2rem;
}

.contact-item h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 4px;
}

.contact-item p {
  font-size: 1rem;
  color: var(--color-text);
  font-weight: 500;
}

.contact-item a {
  color: var(--color-text);
  font-weight: 500;
}

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

.contact-form {
  background: var(--color-light);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.contact-form h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-bottom: 24px;
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  font-family: var(--font-primary);
  font-size: 0.95rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  color: var(--color-text);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 4px var(--color-accent-glow);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-submit {
  width: 100%;
  justify-content: center;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta {
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary));
  padding: 80px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(45, 125, 210, 0.1) 0%, transparent 60%),
    radial-gradient(circle at 80% 50%, rgba(212, 148, 30, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.cta h2 {
  font-size: 2.5rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: -0.5px;
}

.cta p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.65);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.cta .btn-primary {
  background: var(--color-white);
  color: var(--color-primary-dark);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
}

.cta .btn-primary:hover {
  background: var(--color-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.3);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--color-primary-dark);
  padding: 64px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

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

.footer-brand p {
  color: rgba(255, 255, 255, 0.55);
  font-size: 0.9rem;
  line-height: 1.8;
  margin-top: 16px;
  max-width: 340px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 1.5px;
  margin-bottom: 20px;
}

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

.footer-col ul li a {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--color-accent-light);
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.footer-bottom p {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.85rem;
}

.footer-bottom-links {
  display: flex;
  gap: 24px;
}

.footer-bottom-links a {
  color: rgba(255, 255, 255, 0.4);
  font-size: 0.85rem;
}

.footer-bottom-links a:hover {
  color: var(--color-accent-light);
}

/* ============================================
   LEGAL PAGES (Privacy & Terms)
   ============================================ */
.legal-header {
  background: var(--color-primary-dark);
  padding: 140px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.legal-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  pointer-events: none;
}

.legal-header h1 {
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 12px;
  letter-spacing: -1px;
}

.legal-header p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.05rem;
}

.legal-content {
  padding: 64px 0 96px;
  background: var(--color-white);
}

.legal-content-inner {
  max-width: 800px;
  margin: 0 auto;
  padding: 0 24px;
}

.legal-content-inner .last-updated {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 40px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.legal-section {
  margin-bottom: 48px;
}

.legal-section:last-child {
  margin-bottom: 0;
}

.legal-section h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-primary-dark);
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}

.legal-section h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--color-primary-dark);
  margin-top: 24px;
  margin-bottom: 12px;
}

.legal-section p {
  color: var(--color-text-muted);
  line-height: 1.9;
  margin-bottom: 14px;
  font-size: 0.95rem;
}

.legal-section ul {
  margin: 12px 0 16px;
  padding-left: 24px;
  list-style: disc;
}

.legal-section ul li {
  color: var(--color-text-muted);
  line-height: 1.8;
  font-size: 0.95rem;
  margin-bottom: 6px;
}

.legal-section ul li::marker {
  color: var(--color-accent);
}

/* ============================================
   SCROLL TO TOP
   ============================================ */
.scroll-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--color-accent);
  color: var(--color-white);
  border: none;
  border-radius: 50%;
  font-size: 1.2rem;
  cursor: pointer;
  box-shadow: var(--shadow-lg);
  transition: var(--transition);
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  z-index: 999;
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-primary-medium);
  transform: translateY(-4px);
}

/* ============================================
   RESPONSIVE - TABLET
   ============================================ */
@media (max-width: 1024px) {
  .section {
    padding: 80px 0;
  }

  .section-title {
    font-size: 2rem;
  }

  .hero h1 {
    font-size: 3rem;
  }

  .about-grid {
    gap: 48px;
  }

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

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

  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 32px;
  }
}

/* ============================================
   RESPONSIVE - MOBILE
   ============================================ */
@media (max-width: 768px) {
  .section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.7rem;
  }

  .section-subtitle {
    font-size: 1rem;
  }

  .nav {
    display: none;
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(11, 29, 51, 0.98);
    flex-direction: column;
    padding: 24px;
    gap: 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .nav.open {
    display: flex;
  }

  .mobile-toggle {
    display: flex;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 1rem;
  }

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

  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

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

  .about-details {
    grid-template-columns: 1fr;
  }

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

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

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

  .contact-form {
    padding: 24px;
  }

  .cta h2 {
    font-size: 1.8rem;
  }

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

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

  .legal-header h1 {
    font-size: 2rem;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .hero h1 {
    font-size: 1.8rem;
  }

  .about-visual-box {
    padding: 32px 24px;
  }
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.animate-in.visible {
  opacity: 1;
  transform: translateY(0);
}