/* ============================================
   918 Tech & Design — Styles
   ============================================ */

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

:root {
  --bg: #0a0a0f;
  --bg-card: #12121a;
  --bg-card-hover: #1a1a26;
  --surface: #16161f;
  --border: #1e1e2e;
  --border-hover: #2e2e42;
  --text: #e4e4ed;
  --text-dim: #8888a0;
  --text-muted: #55556a;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-glow: rgba(99, 102, 241, 0.3);
  --accent2: #06b6d4;
  --accent2-glow: rgba(6, 182, 212, 0.3);
  --gradient: linear-gradient(135deg, #6366f1, #06b6d4);
  --gradient-text: linear-gradient(135deg, #818cf8, #22d3ee);
  --radius: 12px;
  --radius-lg: 20px;
  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

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

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  font-family: var(--font);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px var(--accent-glow);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border-hover);
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(99, 102, 241, 0.05);
}

.btn-nav {
  padding: 10px 22px;
  background: var(--gradient);
  color: #fff;
  border-radius: 8px;
  font-size: 0.875rem;
}

.btn-full {
  width: 100%;
}

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

.navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 12px 0;
}

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

.logo {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.logo-accent {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.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-dim);
  transition: var(--transition);
}

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

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

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

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

.grid-overlay {
  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%);
}

.glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
}

.glow-1 {
  width: 600px;
  height: 600px;
  background: var(--accent);
  top: -200px;
  right: -100px;
  opacity: 0.15;
}

.glow-2 {
  width: 500px;
  height: 500px;
  background: var(--accent2);
  bottom: -150px;
  left: -100px;
  opacity: 0.1;
}

.glow-3 {
  width: 300px;
  height: 300px;
  background: var(--accent);
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  opacity: 0.05;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  padding: 120px 0 80px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  border-radius: 100px;
  border: 1px solid var(--border-hover);
  background: rgba(99, 102, 241, 0.06);
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--accent-light);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 32px;
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 5.5rem);
  font-weight: 900;
  line-height: 1.05;
  letter-spacing: -0.03em;
  margin-bottom: 24px;
}

.gradient-text {
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 560px;
  margin: 0 auto 40px;
  line-height: 1.7;
}

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

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 64px;
}

.stat {
  text-align: center;
}

.stat-number {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  font-family: var(--font-mono);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
}

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 32px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  animation: float 2s ease-in-out infinite;
}

.mouse {
  width: 24px;
  height: 38px;
  border-radius: 12px;
  border: 2px solid var(--text-muted);
  position: relative;
}

.wheel {
  width: 3px;
  height: 8px;
  background: var(--accent-light);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scroll-wheel 2s ease-in-out infinite;
}

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

@keyframes scroll-wheel {
  0% { opacity: 1; top: 6px; }
  100% { opacity: 0; top: 20px; }
}

/* --- Section Shared --- */
.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 16px;
}

.section-header h2,
.about-content h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.section-header p {
  color: var(--text-dim);
  font-size: 1.1rem;
  max-width: 500px;
  margin: 0 auto;
}

/* --- Services --- */
.services {
  padding: 120px 0;
}

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

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: var(--transition);
}

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

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 56px;
  height: 56px;
  border-radius: 14px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--accent-light);
}

.service-icon svg {
  width: 28px;
  height: 28px;
}

.service-card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  letter-spacing: -0.01em;
}

.service-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: 20px;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  list-style: none;
}

.service-tags li {
  padding: 5px 14px;
  border-radius: 100px;
  background: rgba(99, 102, 241, 0.06);
  border: 1px solid rgba(99, 102, 241, 0.12);
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-dim);
}

/* Wide coding card */
.service-card-wide {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}

.service-card-wide .service-icon {
  margin-bottom: 24px;
}

.code-decoration {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  overflow: hidden;
}

.code-decoration pre {
  margin: 0;
}

.code-decoration code {
  color: var(--text-dim);
}

.code-kw { color: #c084fc; }
.code-fn { color: #22d3ee; }
.code-prop { color: #818cf8; }
.code-str { color: #34d399; }

/* --- About --- */
.about {
  padding: 120px 0;
  background: var(--surface);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 80px;
  align-items: center;
}

.about-visual {
  display: flex;
  justify-content: center;
}

.about-shape {
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: var(--gradient);
  padding: 3px;
  position: relative;
  animation: pulse-glow 4s ease-in-out infinite;
}

.shape-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--surface);
  display: flex;
  align-items: center;
  justify-content: center;
}

.big-number {
  font-size: 5rem;
  font-weight: 900;
  font-family: var(--font-mono);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

@keyframes pulse-glow {
  0%, 100% { box-shadow: 0 0 40px var(--accent-glow), 0 0 80px rgba(6, 182, 212, 0.1); }
  50% { box-shadow: 0 0 60px var(--accent-glow), 0 0 120px rgba(6, 182, 212, 0.15); }
}

.about-content p {
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.8;
  margin-bottom: 16px;
}

.about-features {
  display: flex;
  flex-direction: column;
  gap: 20px;
  margin-top: 32px;
}

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

.feature-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(99, 102, 241, 0.08);
  border: 1px solid rgba(99, 102, 241, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent-light);
}

.feature-icon svg {
  width: 20px;
  height: 20px;
}

.feature strong {
  display: block;
  font-size: 0.95rem;
  margin-bottom: 2px;
}

.feature span {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* --- Process --- */
.process {
  padding: 120px 0;
}

.process-steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
}

.process-step {
  flex: 1;
  text-align: center;
  padding: 0 24px;
}

.step-number {
  font-size: 3rem;
  font-weight: 900;
  font-family: var(--font-mono);
  background: var(--gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 16px;
  line-height: 1;
}

.process-step h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.process-step p {
  font-size: 0.9rem;
  color: var(--text-dim);
  line-height: 1.7;
}

.process-connector {
  width: 60px;
  height: 2px;
  background: var(--gradient);
  margin-top: 28px;
  flex-shrink: 0;
  opacity: 0.4;
}

/* --- Contact --- */
.contact {
  padding: 120px 0;
  background: var(--surface);
}

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

.contact-info h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.contact-info > p {
  color: var(--text-dim);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 40px;
}

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

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

.contact-method svg {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--accent-light);
  margin-top: 2px;
}

.contact-method strong {
  display: block;
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.contact-method a,
.contact-method span {
  font-size: 0.9rem;
  color: var(--text-dim);
}

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

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

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 16px;
  font-size: 0.9rem;
  color: var(--text);
  font-family: var(--font);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select: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: 100px;
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%238888a0'%3E%3Cpath d='M4 6l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}

/* --- Footer --- */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
}

.footer-content {
  display: flex;
  justify-content: space-between;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-brand {
  max-width: 320px;
}

.footer-brand .logo {
  display: inline-block;
  margin-bottom: 12px;
}

.footer-brand p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.footer-links {
  display: flex;
  gap: 64px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
  color: var(--text);
}

.footer-col a {
  font-size: 0.875rem;
  color: var(--text-muted);
  transition: var(--transition);
}

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

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

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* --- 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);
}

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

  .service-card-wide {
    grid-template-columns: 1fr;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
    text-align: center;
  }

  .about-shape {
    width: 240px;
    height: 240px;
  }

  .big-number {
    font-size: 3.5rem;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

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

  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-card);
    border-left: 1px solid var(--border);
    flex-direction: column;
    align-items: flex-start;
    padding: 80px 32px 32px;
    gap: 24px;
    transition: right 0.35s ease;
  }

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

  .hero-stats {
    gap: 32px;
  }

  .process-steps {
    flex-direction: column;
    gap: 32px;
    align-items: center;
  }

  .process-connector {
    width: 2px;
    height: 40px;
    margin: 0;
  }

  .process-step {
    max-width: 400px;
  }

  .footer-content {
    flex-direction: column;
    gap: 40px;
  }

  .footer-links {
    gap: 40px;
  }

  .service-card {
    padding: 28px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2.2rem;
  }

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

  .hero-stats {
    flex-direction: column;
    gap: 20px;
  }

  .btn {
    padding: 12px 24px;
    font-size: 0.9rem;
  }
}