/* ===========================
   VARIABLES & RESET
   =========================== */
:root {
  --color-bg: #0a0a0f;
  --color-bg-alt: #111118;
  --color-bg-card: #16161f;
  --color-bg-card-hover: #1c1c28;
  --color-surface: #1e1e2a;
  --color-border: #2a2a3a;
  --color-border-light: #3a3a4f;
  --color-text: #e8e8f0;
  --color-text-muted: #9999aa;
  --color-text-dim: #666678;
  --color-accent: #6366f1;
  --color-accent-light: #818cf8;
  --color-accent-glow: rgba(99, 102, 241, 0.15);
  --color-accent-glow-strong: rgba(99, 102, 241, 0.3);
  --color-success: #22c55e;
  --color-white: #ffffff;
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.3);
  --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.1);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --container-max: 1200px;
}

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

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

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

ul {
  list-style: none;
}

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

/* ===========================
   BUTTONS
   =========================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-sm);
  font-family: var(--font-main);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
  background: var(--color-accent-light);
  color: var(--color-white);
  box-shadow: 0 8px 32px rgba(99, 102, 241, 0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border-light);
}

.btn-outline:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
}

.btn-full {
  width: 100%;
}

/* ===========================
   NAVBAR
   =========================== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
  background: transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0;
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

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

.logo-icon {
  color: var(--color-accent);
  font-size: 1.1rem;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-links a {
  padding: 8px 14px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-muted);
  border-radius: var(--radius-sm);
  transition: all var(--transition);
}

.nav-links a:hover {
  color: var(--color-white);
  background: rgba(255, 255, 255, 0.05);
}

.nav-cta {
  background: var(--color-accent) !important;
  color: var(--color-white) !important;
  margin-left: 8px;
}

.nav-cta:hover {
  background: var(--color-accent-light) !important;
}

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

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

/* ===========================
   HERO
   =========================== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 0 80px;
  overflow: hidden;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(99, 102, 241, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 102, 241, 0.03) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero::before {
  content: '';
  position: absolute;
  top: -200px;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, var(--color-accent-glow-strong) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  text-align: center;
  max-width: 860px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  background: var(--color-accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.2);
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-accent-light);
  margin-bottom: 32px;
  font-family: var(--font-mono);
}

.hero h1 {
  font-size: clamp(2.5rem, 6vw, 4.2rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
  color: var(--color-white);
}

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

.hero-subtitle {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.8;
  max-width: 720px;
  margin: 0 auto 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 64px;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  padding-top: 48px;
  border-top: 1px solid var(--color-border);
}

.stat {
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.02em;
}

.stat-suffix {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--color-text-dim);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  animation: float 2s ease-in-out infinite;
}

.scroll-arrow {
  width: 20px;
  height: 20px;
  border-right: 2px solid var(--color-text-dim);
  border-bottom: 2px solid var(--color-text-dim);
  transform: rotate(45deg);
}

@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ===========================
   SECTIONS COMMON
   =========================== */
.section {
  padding: 100px 0;
}

.section:nth-child(even) {
  background: var(--color-bg-alt);
}

.section-header {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 64px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  background: var(--color-accent-glow);
  border: 1px solid rgba(99, 102, 241, 0.15);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--color-accent-light);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  font-family: var(--font-mono);
}

.section-header h2 {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: -0.03em;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
}

/* ===========================
   ABOUT
   =========================== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

.about-text p {
  margin-bottom: 20px;
  color: var(--color-text-muted);
  font-size: 1rem;
  line-height: 1.8;
}

.about-text strong {
  color: var(--color-white);
}

.about-cards {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all var(--transition);
}

.about-card:hover {
  border-color: var(--color-accent);
  background: var(--color-bg-card-hover);
  box-shadow: var(--shadow-glow);
}

.about-card-icon {
  font-size: 1.8rem;
  margin-bottom: 12px;
  color: var(--color-accent-light);
}

.about-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

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

/* ===========================
   SERVICES
   =========================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-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: transform 0.4s ease;
}

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

.service-card:hover {
  border-color: var(--color-border-light);
  background: var(--color-bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}

.service-number {
  font-size: 3rem;
  font-weight: 900;
  color: rgba(99, 102, 241, 0.1);
  font-family: var(--font-mono);
  line-height: 1;
  margin-bottom: 16px;
}

.service-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.service-card > p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.75;
  margin-bottom: 20px;
}

.service-features {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-features li {
  padding: 6px 14px;
  background: var(--color-accent-glow);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-accent-light);
}

/* ===========================
   ADVANTAGES
   =========================== */
.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.advantage-item {
  padding: 36px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: all var(--transition);
}

.advantage-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
  transform: translateY(-4px);
}

.advantage-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-accent-glow);
  border-radius: var(--radius-md);
  color: var(--color-accent-light);
  margin-bottom: 20px;
}

.advantage-item h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.advantage-item p {
  color: var(--color-text-muted);
  font-size: 0.92rem;
  line-height: 1.75;
}

/* ===========================
   PROCESS
   =========================== */
.process-timeline {
  position: relative;
  max-width: 800px;
  margin: 0 auto;
}

.process-timeline::before {
  content: '';
  position: absolute;
  top: 0;
  left: 27px;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-accent), var(--color-border));
}

.process-step {
  display: flex;
  gap: 32px;
  margin-bottom: 48px;
  position: relative;
}

.process-step:last-child {
  margin-bottom: 0;
}

.step-marker {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-bg);
  border: 2px solid var(--color-accent);
  border-radius: 50%;
  z-index: 1;
}

.step-num {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--color-accent-light);
  font-family: var(--font-mono);
}

.step-content {
  flex: 1;
  padding-top: 8px;
}

.step-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 12px;
}

.step-content p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===========================
   TECHNOLOGIES
   =========================== */
.tech-categories {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.tech-category {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all var(--transition);
}

.tech-category:hover {
  border-color: var(--color-border-light);
  background: var(--color-bg-card-hover);
}

.tech-category h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.tech-tag {
  padding: 6px 14px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--color-text);
  transition: all var(--transition);
  font-family: var(--font-mono);
}

.tech-tag:hover {
  border-color: var(--color-accent);
  color: var(--color-accent-light);
  background: var(--color-accent-glow);
}

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

/* ===========================
   CASES
   =========================== */
.cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.case-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

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

.case-tag {
  display: inline-block;
  padding: 4px 12px;
  background: var(--color-accent-glow);
  border-radius: 100px;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-accent-light);
  margin-bottom: 16px;
  align-self: flex-start;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.case-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  line-height: 1.4;
}

.case-card > p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.75;
  flex: 1;
  margin-bottom: 24px;
}

.case-results {
  display: flex;
  gap: 16px;
  padding-top: 20px;
  border-top: 1px solid var(--color-border);
}

.case-result {
  text-align: center;
  flex: 1;
}

.case-result strong {
  display: block;
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-accent-light);
  margin-bottom: 2px;
}

.case-result {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

/* ===========================
   TEAM
   =========================== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.team-card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: all var(--transition);
}

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

.team-avatar {
  width: 72px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent), var(--color-accent-light));
  border-radius: 50%;
  font-size: 1.3rem;
  font-weight: 800;
  color: var(--color-white);
  margin: 0 auto 20px;
}

.team-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
}

.team-role {
  display: block;
  font-size: 0.85rem;
  color: var(--color-accent-light);
  font-weight: 500;
  margin-bottom: 16px;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  text-align: left;
}

.team-cta {
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
  padding: 32px;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
}

.team-cta p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===========================
   FAQ
   =========================== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: var(--color-border-light);
}

.faq-item.active {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-glow);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: var(--color-bg-card);
  border: none;
  color: var(--color-white);
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
}

.faq-question:hover {
  background: var(--color-bg-card-hover);
}

.faq-toggle {
  font-size: 1.4rem;
  font-weight: 300;
  color: var(--color-accent-light);
  transition: transform var(--transition);
  flex-shrink: 0;
  margin-left: 16px;
}

.faq-item.active .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  max-height: 500px;
}

.faq-answer p {
  padding: 0 24px 24px;
  color: var(--color-text-muted);
  font-size: 0.95rem;
  line-height: 1.8;
}

/* ===========================
   CONTACTS
   =========================== */
.contacts-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: all var(--transition);
  outline: none;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.form-group select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%239999aa' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
}

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

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

.contact-info-block {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
}

.contact-info-block h3 {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 8px;
}

.contact-info-block p {
  color: var(--color-white);
  font-size: 1rem;
  line-height: 1.6;
}

.contact-info-block a {
  color: var(--color-white);
}

.contact-info-block a:hover {
  color: var(--color-accent-light);
}

.contact-note {
  font-size: 0.85rem !important;
  color: var(--color-text-muted) !important;
  margin-top: 4px;
}

.contact-map {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

/* ===========================
   FOOTER
   =========================== */
.footer {
  background: var(--color-bg-alt);
  border-top: 1px solid var(--color-border);
  padding: 64px 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  padding-bottom: 48px;
}

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

.footer-brand p {
  color: var(--color-text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-white);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
}

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

.footer-col a,
.footer-col li {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

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

.footer-bottom {
  border-top: 1px solid var(--color-border);
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

/* ===========================
   ANIMATIONS
   =========================== */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===========================
   RESPONSIVE
   =========================== */
@media (max-width: 1024px) {
  .about-grid {
    grid-template-columns: 1fr;
  }

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

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

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

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

  .tech-categories {
    grid-template-columns: 1fr;
  }

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

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

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 80%;
    max-width: 360px;
    height: 100vh;
    flex-direction: column;
    background: var(--color-bg-alt);
    border-left: 1px solid var(--color-border);
    padding: 80px 32px 32px;
    gap: 4px;
    transition: right var(--transition);
    z-index: 999;
  }

  .nav-links.active {
    right: 0;
  }

  .nav-links a {
    padding: 14px 16px;
    font-size: 1rem;
    width: 100%;
  }

  .nav-cta {
    margin-left: 0 !important;
    margin-top: 16px;
    text-align: center;
  }

  .nav-toggle {
    display: flex;
    z-index: 1001;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }

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

  .nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }

  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

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

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

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

  .footer-links {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .case-results {
    flex-direction: column;
    gap: 8px;
  }
}

/* ===========================
   FORM SUCCESS
   =========================== */
.form-success {
  text-align: center;
  padding: 48px 24px;
}

.form-success-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(34, 197, 94, 0.1);
  border-radius: 50%;
  margin: 0 auto 20px;
  font-size: 2rem;
  color: var(--color-success);
}

.form-success h3 {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.form-success p {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

/* ===========================
   SCROLL OVERLAY FOR MOBILE
   =========================== */
.nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  z-index: 998;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition);
}

.nav-overlay.active {
  opacity: 1;
  pointer-events: all;
}