/* ===== AOS Agency - Dark Premium Design ===== */
/* Palette: Deep Dark #05060f | Electric Blue #0066ff | Accent Purple #7c5cfc | Soft Lavender #b8a9f0 */

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

:root {
  --bg-primary: #05060f;
  --bg-secondary: #0a0c1a;
  --bg-card: #10122a;
  --bg-card-hover: #161840;
  --blue: #0066ff;
  --blue-light: #3388ff;
  --purple: #7c5cfc;
  --lavender: #b8a9f0;
  --white: #ffffff;
  --gray-100: #f0f0f5;
  --gray-200: #c8c9d4;
  --gray-300: #9496a8;
  --gray-400: #6b6d82;
  --gradient-main: linear-gradient(135deg, var(--blue), var(--purple));
  --gradient-hero: linear-gradient(135deg, rgba(5,6,15,0.92), rgba(16,18,42,0.88));
  --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Space Grotesk', var(--font-main);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-glow: 0 0 40px rgba(0,102,255,0.15);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--gray-200);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a { color: var(--blue-light); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--lavender); }
ul { list-style: none; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.container-narrow { max-width: 900px; margin: 0 auto; padding: 0 24px; }

/* ===== Typography ===== */
h1, h2, h3, h4, h5 { font-family: var(--font-display); color: var(--white); line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.8rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); letter-spacing: -0.02em; margin-bottom: 1rem; }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); margin-bottom: 0.75rem; }
p { margin-bottom: 1rem; }
.text-gradient {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.lead { font-size: 1.15rem; color: var(--gray-300); line-height: 1.8; }

/* ===== Header / Nav ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background var(--transition), box-shadow var(--transition), padding var(--transition);
}
.header.scrolled {
  background: rgba(5,6,15,0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 1px 0 rgba(255,255,255,0.05);
  padding: 10px 0;
}
.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--white);
  letter-spacing: -0.02em;
}
.logo span { color: var(--blue); }

.nav { display: flex; align-items: center; gap: 32px; }
.nav a {
  color: var(--gray-300);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}
.nav a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--gradient-main);
  transition: width var(--transition);
}
.nav a:hover { color: var(--white); }
.nav a:hover::after { width: 100%; }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 600;
  font-family: var(--font-main);
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient-main);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(0,102,255,0.3);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,102,255,0.4);
  color: var(--white);
}
.btn-outline {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255,255,255,0.2);
}
.btn-outline:hover {
  border-color: var(--blue);
  background: rgba(0,102,255,0.1);
  color: var(--white);
}
.btn-lg { padding: 16px 36px; font-size: 1rem; }
.btn-sm { padding: 8px 20px; font-size: 0.85rem; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}
.hamburger span {
  width: 24px; height: 2px;
  background: var(--white);
  transition: all var(--transition);
  border-radius: 2px;
}
.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 80px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-hero),
              url('https://images.unsplash.com/photo-1551434678-e076c223a692?w=1400&q=75&auto=format&fit=crop') center/cover no-repeat;
  z-index: -2;
}
.hero::after {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(0,102,255,0.15), transparent 70%);
  top: -100px; right: -100px;
  z-index: -1;
  animation: pulse-glow 6s ease-in-out infinite;
}
@keyframes pulse-glow {
  0%, 100% { opacity: 0.5; transform: scale(1); }
  50% { opacity: 1; transform: scale(1.1); }
}

.hero-content { max-width: 700px; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  background: rgba(0,102,255,0.1);
  border: 1px solid rgba(0,102,255,0.2);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--blue-light);
  margin-bottom: 24px;
}
.hero h1 { margin-bottom: 24px; }
.hero .lead { max-width: 560px; margin-bottom: 32px; }
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== Sections ===== */
section { padding: 100px 0; }
.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 60px;
}
.section-header .overline {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--blue-light);
  margin-bottom: 12px;
}
.section-alt { background: var(--bg-secondary); }

/* ===== Cards Grid ===== */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}
.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-main);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}
.card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-card);
}
.card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 56px; height: 56px;
  border-radius: 12px;
  background: rgba(0,102,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 1.5rem;
}
.card h3 { font-size: 1.2rem; }
.card p { color: var(--gray-400); font-size: 0.95rem; }

/* ===== Stats ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  text-align: center;
}
.stat-item h3 {
  font-size: clamp(2rem, 4vw, 3rem);
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.stat-item p { color: var(--gray-400); font-size: 0.9rem; margin-top: 4px; }

/* ===== Process Steps ===== */
.process-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
  counter-reset: step;
}
.process-step {
  text-align: center;
  padding: 32px 20px;
  position: relative;
}
.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 800;
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: block;
  margin-bottom: 16px;
  opacity: 0.5;
}
.process-step h3 { font-size: 1.1rem; }
.process-step p { color: var(--gray-400); font-size: 0.9rem; }

/* ===== Testimonials ===== */
.testimonial-card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.05);
  border-radius: var(--radius);
  padding: 32px;
}
.testimonial-card .stars { color: #fbbf24; margin-bottom: 16px; font-size: 1.1rem; }
.testimonial-card blockquote {
  font-style: italic;
  color: var(--gray-200);
  margin-bottom: 20px;
  line-height: 1.8;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--gradient-main);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--white);
  font-weight: 700;
  font-size: 0.9rem;
}
.testimonial-name { font-weight: 600; color: var(--white); font-size: 0.9rem; }
.testimonial-role { color: var(--gray-400); font-size: 0.8rem; }

/* ===== FAQ ===== */
.faq-item {
  border-bottom: 1px solid rgba(255,255,255,0.06);
  padding: 20px 0;
}
.faq-question {
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  width: 100%;
  background: none;
  border: none;
  color: var(--white);
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  text-align: left;
  padding: 8px 0;
  transition: color var(--transition);
}
.faq-question:hover { color: var(--blue-light); }
.faq-question .icon {
  font-size: 1.4rem;
  transition: transform var(--transition);
  color: var(--blue);
  flex-shrink: 0;
  margin-left: 16px;
}
.faq-item.active .faq-question .icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
  color: var(--gray-300);
  line-height: 1.8;
}
.faq-item.active .faq-answer { max-height: 500px; padding-top: 12px; }

/* ===== CTA Banner ===== */
.cta-banner {
  background: var(--gradient-main);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  margin: 0 24px;
}
.cta-banner::before {
  content: '';
  position: absolute;
  width: 400px; height: 400px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  top: -200px; right: -100px;
}
.cta-banner h2 { color: var(--white); margin-bottom: 16px; }
.cta-banner p { color: rgba(255,255,255,0.85); margin-bottom: 28px; font-size: 1.1rem; }
.cta-banner .btn {
  background: var(--white);
  color: var(--blue);
  font-weight: 700;
}
.cta-banner .btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0,0,0,0.3);
}

/* ===== Sidebar CTA ===== */
.page-layout {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 48px;
  align-items: start;
}
.sidebar { position: sticky; top: 100px; }
.sidebar-cta {
  background: var(--bg-card);
  border: 1px solid rgba(0,102,255,0.2);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
}
.sidebar-cta h3 { font-size: 1.2rem; margin-bottom: 12px; }
.sidebar-cta p { color: var(--gray-400); font-size: 0.9rem; margin-bottom: 20px; }
.sidebar-cta .btn { width: 100%; justify-content: center; }

/* ===== Contact Form ===== */
.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.form-group { margin-bottom: 0; }
.form-group.full { grid-column: 1 / -1; }
.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--gray-300);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-secondary);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 8px;
  color: var(--white);
  font-family: var(--font-main);
  font-size: 0.95rem;
  transition: border-color var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(0,102,255,0.1);
}
.form-group textarea { min-height: 140px; resize: vertical; }

/* ===== Footer ===== */
.footer {
  background: var(--bg-secondary);
  border-top: 1px solid rgba(255,255,255,0.05);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { color: var(--gray-400); font-size: 0.9rem; margin-top: 12px; max-width: 300px; }
.footer h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--gray-300);
  margin-bottom: 20px;
}
.footer ul li { margin-bottom: 10px; }
.footer ul a { color: var(--gray-400); font-size: 0.9rem; }
.footer ul a:hover { color: var(--white); }
.footer-bottom {
  padding-top: 32px;
  border-top: 1px solid rgba(255,255,255,0.05);
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--gray-400);
  font-size: 0.8rem;
}

/* ===== Page Header (internal pages) ===== */
.page-hero {
  padding: 160px 0 80px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, rgba(0,102,255,0.12), transparent 60%);
}
.page-hero .overline {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--blue-light);
  margin-bottom: 16px;
}
.page-hero h1 { margin-bottom: 20px; }
.page-hero .lead { max-width: 640px; margin: 0 auto; }
.breadcrumb {
  display: flex;
  justify-content: center;
  gap: 8px;
  margin-bottom: 32px;
  font-size: 0.85rem;
  color: var(--gray-400);
}
.breadcrumb a { color: var(--gray-400); }
.breadcrumb a:hover { color: var(--blue-light); }

/* ===== Content Styling ===== */
.content h2 { margin-top: 48px; margin-bottom: 16px; }
.content h3 { margin-top: 32px; }
.content p { color: var(--gray-200); }
.content ul, .content ol {
  margin: 16px 0;
  padding-left: 24px;
  color: var(--gray-200);
}
.content ul { list-style: disc; }
.content ol { list-style: decimal; }
.content li { margin-bottom: 8px; line-height: 1.7; }
.content strong { color: var(--white); }

/* ===== Animations ===== */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}
.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.3s; }

/* ===== 404 ===== */
.error-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
}
.error-code {
  font-size: clamp(6rem, 15vw, 12rem);
  font-weight: 900;
  font-family: var(--font-display);
  background: var(--gradient-main);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 16px;
}

/* ===== Mobile ===== */
@media (max-width: 1024px) {
  .page-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .process-steps { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
}

@media (max-width: 768px) {
  .nav { 
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(5,6,15,0.98);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 24px;
    z-index: 999;
  }
  .nav.active { display: flex; }
  .nav a { font-size: 1.2rem; }
  .hamburger { display: flex; z-index: 1001; }
  
  .hero { min-height: auto; padding: 140px 0 80px; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; justify-content: center; }
  
  section { padding: 64px 0; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .grid-4 { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .process-steps { grid-template-columns: 1fr; gap: 16px; }
  
  .cta-banner { padding: 40px 24px; margin: 0 16px; border-radius: var(--radius); }
  .form-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }
  .footer-bottom { flex-direction: column; gap: 12px; text-align: center; }
}

@media (max-width: 480px) {
  .grid-4 { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; }
}