/* ============================================
   WEB AGENCY SITE — STYLES
   Dark premium theme, mobile-first, clean
   ============================================ */

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

:root {
  --bg-dark: #0b0f19;
  --bg-card: #131927;
  --bg-card-hover: #1a2235;
  --surface: #1c2333;
  --border: #2a3347;
  --text-primary: #f0f2f5;
  --text-secondary: #9ba3b5;
  --text-muted: #6b7280;
  --accent: #6366f1;
  --accent-hover: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.25);
  --green: #22c55e;
  --green-glow: rgba(34, 197, 94, 0.15);
  --gradient-hero: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #a78bfa 100%);
  --gradient-subtle: linear-gradient(135deg, rgba(99,102,241,0.08) 0%, rgba(139,92,246,0.04) 100%);
  --radius: 12px;
  --radius-lg: 20px;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 12px 48px rgba(0,0,0,0.4);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --max-width: 1140px;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-dark);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

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

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

/* --- Utility --- */
.container { width: 100%; max-width: var(--max-width); margin: 0 auto; padding: 0 24px; }
.text-center { text-align: center; }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }

.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;
}

/* --- Typography --- */
h1, h2, h3, h4 { font-weight: 700; line-height: 1.2; letter-spacing: -0.02em; }
h1 { font-size: clamp(2rem, 5vw, 3.25rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.5rem); }
h3 { font-size: clamp(1.15rem, 2.5vw, 1.5rem); }

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 600px;
  margin: 12px auto 0;
  line-height: 1.7;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: 10px;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  text-decoration: none;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-primary:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text-primary);
  border: 1.5px solid var(--border);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-lg { padding: 16px 40px; font-size: 1.05rem; }

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: all var(--transition);
}

.nav.scrolled {
  background: rgba(11, 15, 25, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

.nav-logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}
.nav-logo span { color: var(--accent); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color var(--transition);
  position: relative;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text-primary); }

.nav-links a.btn-primary,
.nav-links a.btn-primary:hover {
  color: #fff;
  padding: 10px 24px;
  font-size: 0.88rem;
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
}

.nav-cta { margin-left: 8px; }

.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(--text-primary);
  border-radius: 2px;
  transition: all var(--transition);
}

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

  .nav-menu {
    position: fixed;
    top: 0; right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    padding: 80px 32px 32px;
    transition: right var(--transition);
    z-index: 999;
  }
  .nav-menu.open { right: 0; }

  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
  .nav-links a { font-size: 1.1rem; }
  .nav-cta { margin-left: 0; margin-top: 8px; }

  .nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
    z-index: 998;
  }
  .nav-overlay.open { opacity: 1; visibility: visible; }
}

/* --- Hero --- */
.hero {
  position: relative;
  padding: 160px 0 100px;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg .orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
}
.hero-bg .orb-1 {
  width: 500px; height: 500px;
  background: #6366f1;
  top: -100px; right: -100px;
}
.hero-bg .orb-2 {
  width: 400px; height: 400px;
  background: #8b5cf6;
  bottom: -50px; left: -80px;
}
.hero-bg .orb-3 {
  width: 300px; height: 300px;
  background: #a78bfa;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.15;
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: 720px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  background: rgba(99, 102, 241, 0.12);
  border: 1px solid rgba(99, 102, 241, 0.25);
  border-radius: 100px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--accent-hover);
  margin-bottom: 24px;
}
.hero-badge .dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: pulse-dot 2s ease infinite;
}

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

.hero h1 {
  margin-bottom: 20px;
}
.hero h1 .highlight {
  background: var(--gradient-hero);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
}

.hero-buttons { display: flex; gap: 12px; flex-wrap: wrap; }

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

.hero-stat-value {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
}
.hero-stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 6px;
}

/* --- Section Defaults --- */
section { padding: 100px 0; }

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

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

@media (max-width: 768px) {
  .cards-grid.cols-2,
  .cards-grid.cols-3 { grid-template-columns: 1fr; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: all var(--transition);
}
.card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.card-icon {
  width: 52px; height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-subtle);
  border: 1px solid var(--border);
  border-radius: 14px;
  margin-bottom: 20px;
  font-size: 1.4rem;
}

.card h3 { margin-bottom: 10px; }
.card p { color: var(--text-secondary); font-size: 0.95rem; line-height: 1.7; }

/* --- Services / What We Do --- */
.services { background: var(--gradient-subtle); }

/* --- Who It's For --- */
.audience-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 700px;
  margin: 0 auto;
}

@media (max-width: 600px) {
  .audience-list { grid-template-columns: 1fr; }
}

.audience-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 16px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  font-size: 0.95rem;
  color: var(--text-secondary);
}

.audience-item .check {
  flex-shrink: 0;
  width: 28px; height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--green-glow);
  color: var(--green);
  border-radius: 8px;
  font-weight: 700;
  font-size: 0.85rem;
}

/* --- Pricing Section --- */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto;
}

@media (max-width: 700px) {
  .pricing-grid { grid-template-columns: 1fr; }
}

.pricing-card {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
  transition: all var(--transition);
}
.pricing-card:hover {
  border-color: rgba(99,102,241,0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.pricing-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), var(--shadow);
}

.pricing-badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  padding: 4px 16px;
  background: var(--accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.pricing-label {
  font-size: 0.85rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
  margin-bottom: 12px;
}

.pricing-amount {
  font-size: 3rem;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1;
  margin-bottom: 4px;
}
.pricing-amount .currency { font-size: 1.5rem; vertical-align: top; margin-right: 2px; }
.pricing-period {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.pricing-features {
  list-style: none;
  margin-bottom: 32px;
}
.pricing-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 8px 0;
  font-size: 0.92rem;
  color: var(--text-secondary);
}
.pricing-features li .icon {
  flex-shrink: 0;
  color: var(--green);
  font-weight: 700;
  margin-top: 2px;
}

.pricing-card .btn { width: 100%; }

/* --- How It Works (Steps) --- */
.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  counter-reset: step;
}

@media (max-width: 900px) {
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 540px) {
  .steps { grid-template-columns: 1fr; }
}

.step {
  text-align: center;
  padding: 36px 24px;
  counter-increment: step;
}

.step-number {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  margin: 0 auto 20px;
  background: var(--gradient-subtle);
  border: 1px solid var(--border);
  border-radius: 16px;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}

.step h3 { margin-bottom: 10px; }
.step p { color: var(--text-secondary); font-size: 0.92rem; line-height: 1.7; }

.step-connector {
  display: none; /* visual connector for desktop, optional */
}

/* --- CTA Banner --- */
.cta-banner {
  padding: 80px 0;
}

.cta-inner {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 64px 48px;
  text-align: center;
  overflow: hidden;
}

.cta-inner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: var(--gradient-subtle);
  z-index: 0;
}

.cta-inner > * { position: relative; z-index: 1; }

.cta-inner h2 { margin-bottom: 16px; }
.cta-inner p {
  color: var(--text-secondary);
  font-size: 1.05rem;
  max-width: 500px;
  margin: 0 auto 32px;
}

/* --- Contact Form --- */
.contact-section {
  padding: 160px 0 100px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: start;
}

@media (max-width: 768px) {
  .contact-grid { grid-template-columns: 1fr; }
}

.contact-info h2 { margin-bottom: 16px; }
.contact-info > p {
  color: var(--text-secondary);
  margin-bottom: 36px;
  line-height: 1.7;
}

.contact-detail {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 20px;
}

.contact-detail-icon {
  width: 44px; height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-subtle);
  border: 1px solid var(--border);
  border-radius: 12px;
  font-size: 1.1rem;
}

.contact-detail-text { color: var(--text-secondary); font-size: 0.95rem; }
.contact-detail-text strong { color: var(--text-primary); display: block; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 2px; }

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

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

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: 8px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 14px 16px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text-primary);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color var(--transition);
  outline: none;
}

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

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

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 540px) {
  .form-row { grid-template-columns: 1fr; }
}

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}
.form-success.show { display: block; }
.form-success h3 { color: var(--green); margin-bottom: 8px; }
.form-success p { color: var(--text-secondary); }

/* --- Footer --- */
.footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}
.footer-logo span { color: var(--accent); }

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}
.footer-links a {
  font-size: 0.85rem;
  color: var(--text-muted);
}
.footer-links a:hover { color: var(--text-primary); }

.footer-copy {
  width: 100%;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 24px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

/* --- Scroll Animations --- */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Staggered children */
.stagger-children .reveal { transition-delay: calc(var(--i, 0) * 0.1s); }

/* --- Page Header (inner pages) --- */
.page-header {
  padding: 160px 0 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.page-header .hero-bg { opacity: 0.5; }
.page-header h1 { margin-bottom: 12px; position: relative; z-index: 1; }
.page-header p { position: relative; z-index: 1; }

/* --- Responsive fine-tuning --- */
@media (max-width: 768px) {
  section { padding: 72px 0; }
  .hero { padding: 130px 0 72px; }
  .hero-stats { gap: 24px; flex-wrap: wrap; }
  .hero-stat-value { font-size: 1.5rem; }
  .cta-inner { padding: 48px 24px; }
  .contact-form-wrap { padding: 28px 20px; }
}

@media (max-width: 480px) {
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; }
  .pricing-card { padding: 32px 24px; }
}