/* ============================================
   CodeCrafters AI — Portfolio Stylesheet
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: #16161e;
  --bg-card-hover: #1c1c28;
  --border: #2a2a3a;
  --border-light: #3a3a4a;

  --text-primary: #f0f0f5;
  --text-secondary: #a0a0b8;
  --text-muted: #6a6a80;

  --accent-1: #7C3AED;
  --accent-2: #3B82F6;
  --accent-3: #ff6b9d;
  --gradient: linear-gradient(135deg, #7C3AED 0%, #3B82F6 50%, #ff6b9d 100%);
  --gradient-btn: linear-gradient(135deg, #7C3AED 0%, #5a52e0 100%);
  --gradient-btn-hover: linear-gradient(135deg, #7C3AED 0%, #6a62f0 100%);

  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.4);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.5);
  --shadow-glow: 0 0 40px rgba(108, 99, 255, 0.15);

  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
}

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

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

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

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

ul {
  list-style: none;
}

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

button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
  color: inherit;
}

input,
textarea,
select {
  font-family: inherit;
  font-size: inherit;
}

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

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

.section {
  padding: 120px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
  max-width: 680px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 3px;
  color: var(--accent-1);
  margin-bottom: 16px;
  padding: 6px 16px;
  border: 1px solid rgba(108, 99, 255, 0.3);
  border-radius: 50px;
  background: rgba(108, 99, 255, 0.08);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.section-desc {
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 0.95rem;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--gradient-btn);
  color: #fff;
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.btn-primary:hover {
  background: var(--gradient-btn-hover);
  box-shadow: 0 6px 30px rgba(108, 99, 255, 0.45);
  transform: translateY(-2px);
}

.btn-primary i {
  transition: transform 0.3s ease;
}

.btn-primary:hover i {
  transform: translateX(4px);
}

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

.btn-outline:hover {
  border-color: var(--accent-1);
  background: rgba(108, 99, 255, 0.08);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 18px 40px;
  font-size: 1.05rem;
}

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

/* ---------- Navbar ---------- */
.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);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  padding: 10px 0;
}

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

.nav-logo {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
}

.logo-bracket {
  color: var(--accent-1);
}

.logo-highlight {
  background: var(--accent-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-link {
  padding: 8px 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
}

.nav-link.active {
  background: rgba(108, 99, 255, 0.1);
  color: var(--accent-1);
}

.nav-link.cta-link {
  background: var(--gradient-btn);
  color: #fff;
  margin-left: 8px;
  border-radius: var(--radius-md);
}

.nav-link.cta-link:hover {
  box-shadow: 0 4px 20px rgba(108, 99, 255, 0.3);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
  z-index: 1001;
}

.hamburger .bar {
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

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

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

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

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
}

.hero-bg-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(108, 99, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(108, 99, 255, 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-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  opacity: 0.4;
  pointer-events: none;
}

.hero-glow-1 {
  width: 500px;
  height: 500px;
  background: var(--accent-1);
  top: -150px;
  right: -100px;
  opacity: 0.12;
}

.hero-glow-2 {
  width: 400px;
  height: 400px;
  background: var(--accent-2);
  bottom: -100px;
  left: -100px;
  opacity: 0.08;
}

.hero-container {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  border: 1px solid rgba(108, 99, 255, 0.3);
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--accent-1);
  background: rgba(108, 99, 255, 0.06);
  margin-bottom: 28px;
  font-weight: 500;
}

.badge-dot {
  width: 8px;
  height: 8px;
  background: #4ade80;
  border-radius: 50%;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero-title {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  margin-bottom: 24px;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  font-size: 1.15rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 36px;
  max-width: 520px;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

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

.stat {
  text-align: left;
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--text-primary);
  display: inline;
}

.stat-plus {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent-1);
}

.stat-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 2px;
}

.stat-divider {
  width: 1px;
  height: 50px;
  background: var(--border);
}

/* Code Window */
.code-window {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.code-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.code-header .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
}

.dot.red { background: #ff5f57; }
.dot.yellow { background: #ffbd2e; }
.dot.green { background: #28c840; }

.code-title {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-left: 12px;
}

.code-body {
  padding: 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.8;
  overflow-x: auto;
}

.code-keyword { color: #c792ea; }
.code-var { color: #82aaff; }
.code-prop { color: #c3e88d; }
.code-string { color: #c3e88d; }
.code-method { color: #82aaff; }
.code-param { color: #f78c6c; }

/* Scroll indicator */
.scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  font-size: 0.8rem;
}

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

.mouse-wheel {
  width: 3px;
  height: 8px;
  background: var(--accent-1);
  border-radius: 2px;
  position: absolute;
  top: 6px;
  left: 50%;
  transform: translateX(-50%);
  animation: scrollWheel 2s infinite;
}

@keyframes scrollWheel {
  0% { opacity: 1; transform: translateX(-50%) translateY(0); }
  100% { opacity: 0; transform: translateX(-50%) translateY(14px); }
}

/* ---------- About ---------- */
.about {
  background: var(--bg-secondary);
}

.about-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.about-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
  text-align: center;
}

.about-card:hover {
  border-color: var(--accent-1);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.about-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 99, 255, 0.1);
  border-radius: var(--radius-md);
  margin: 0 auto 20px;
  font-size: 1.5rem;
  color: var(--accent-1);
}

.about-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.about-card p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* Tech stack */
.tech-stack {
  text-align: center;
}

.tech-label {
  display: block;
  font-size: 0.85rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.tech-icons {
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
}

.tech-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 1.4rem;
  color: var(--text-secondary);
  transition: var(--transition);
}

.tech-icon:hover {
  color: var(--accent-1);
  border-color: var(--accent-1);
  transform: translateY(-4px);
  box-shadow: 0 8px 20px rgba(108, 99, 255, 0.15);
}

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

.service-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  border-color: var(--accent-1);
  transform: translateY(-6px);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

.service-number {
  font-size: 4rem;
  font-weight: 900;
  color: rgba(108, 99, 255, 0.06);
  position: absolute;
  top: 16px;
  right: 24px;
  line-height: 1;
  font-family: var(--font-mono);
}

.service-icon {
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 99, 255, 0.1);
  border-radius: var(--radius-md);
  margin-bottom: 24px;
  font-size: 1.4rem;
  color: var(--accent-1);
  transition: var(--transition);
}

.service-card:hover .service-icon {
  background: var(--accent-1);
  color: #fff;
}

.service-card h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 12px;
}

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

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

.service-tags li {
  padding: 4px 12px;
  background: rgba(108, 99, 255, 0.08);
  border: 1px solid rgba(108, 99, 255, 0.15);
  border-radius: 50px;
  font-size: 0.78rem;
  color: var(--accent-1);
  font-weight: 500;
}

/* ---------- Portfolio ---------- */
.portfolio {
  background: var(--bg-secondary);
}

.portfolio-filter {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.filter-btn {
  padding: 8px 24px;
  border-radius: 50px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  background: transparent;
  transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
  background: var(--accent-1);
  color: #fff;
  border-color: var(--accent-1);
}

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

.portfolio-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}

.portfolio-card.hidden {
  display: none;
}

.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--border-light);
}

.portfolio-image {
  height: 200px;
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.portfolio-overlay {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.3);
  display: flex;
  align-items: flex-end;
  padding: 20px;
  opacity: 0;
  transition: var(--transition);
}

.portfolio-card:hover .portfolio-overlay {
  opacity: 1;
}

.portfolio-category {
  padding: 6px 16px;
  background: rgba(108, 99, 255, 0.9);
  border-radius: 50px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #fff;
}

.portfolio-info {
  padding: 24px;
}

.portfolio-info h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.portfolio-info p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.portfolio-tech {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.portfolio-tech span {
  padding: 3px 10px;
  background: var(--bg-primary);
  border-radius: 50px;
  font-size: 0.75rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ---------- Testimonials ---------- */
.testimonials-slider {
  max-width: 100%;
  overflow: hidden;
  position: relative;
}

.testimonial-track {
  display: flex;
  gap: 24px;
  transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card {
  min-width: 100%;
  padding: 48px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

@media (min-width: 769px) {
  .testimonial-card {
    min-width: 50%;
    padding: 40px;
  }
}

.testimonial-stars {
  color: #fbbf24;
  font-size: 1rem;
  display: flex;
  justify-content: center;
  gap: 4px;
  margin-bottom: 24px;
}

.testimonial-text {
  font-size: 1.1rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 32px;
  font-style: italic;
}

.testimonial-author {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
}

.author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--gradient-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  color: #fff;
}

.testimonial-author strong {
  display: block;
  font-size: 0.95rem;
}

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

.slider-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 32px;
}

.slider-btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  transition: var(--transition);
}

.slider-btn:hover {
  background: var(--accent-1);
  color: #fff;
  border-color: var(--accent-1);
}

.slider-dots {
  display: flex;
  gap: 8px;
}

.slider-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--border);
  cursor: pointer;
  transition: var(--transition);
}

.slider-dot.active {
  background: var(--accent-1);
  transform: scale(1.2);
}

/* ---------- Process ---------- */
.process {
  background: var(--bg-secondary);
}

.process-timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.process-timeline::before {
  content: '';
  position: absolute;
  left: 32px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--border);
}

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

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

.step-number {
  width: 64px;
  height: 64px;
  min-width: 64px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 2px solid var(--accent-1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent-1);
  font-family: var(--font-mono);
  position: relative;
  z-index: 1;
}

.step-content h3 {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 8px;
  padding-top: 4px;
}

.step-content p {
  color: var(--text-secondary);
  font-size: 0.95rem;
}

/* ---------- CTA Section ---------- */
.cta-section {
  padding: 80px 0;
}

.cta-box {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 72px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background: radial-gradient(circle, rgba(108, 99, 255, 0.06) 0%, transparent 60%);
  pointer-events: none;
}

.cta-box h2 {
  font-size: clamp(1.8rem, 3.5vw, 2.5rem);
  font-weight: 800;
  margin-bottom: 16px;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 1.1rem;
  margin-bottom: 32px;
}

/* ---------- Contact ---------- */
.contact {
  background: var(--bg-secondary);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 48px;
  align-items: start;
}

.contact-info-card {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  transition: var(--transition);
}

.contact-info-card:hover {
  border-color: var(--accent-1);
}

.contact-icon {
  width: 48px;
  height: 48px;
  min-width: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(108, 99, 255, 0.1);
  border-radius: var(--radius-sm);
  color: var(--accent-1);
  font-size: 1.1rem;
}

.contact-info-card h4 {
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.contact-info-card a,
.contact-info-card p {
  color: var(--text-secondary);
  font-size: 0.9rem;
}

.contact-info-card a:hover {
  color: var(--accent-1);
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 24px;
}

.social-link {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: var(--transition);
}

.social-link:hover {
  background: var(--accent-1);
  color: #fff;
  border-color: var(--accent-1);
  transform: translateY(-3px);
}

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

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

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

.form-group label {
  display: block;
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 18px;
  background: var(--bg-primary);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: var(--transition);
  outline: none;
}

.form-group select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236a6a80' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent-1);
  box-shadow: 0 0 0 3px rgba(108, 99, 255, 0.1);
}

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

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

.form-status {
  margin-top: 16px;
  text-align: center;
  font-size: 0.95rem;
  font-weight: 500;
}

.form-status.success {
  color: #4ade80;
}

.form-status.error {
  color: #f87171;
}

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

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  margin-top: 16px;
  max-width: 280px;
}

.footer-links h4,
.footer-newsletter h4 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 20px;
}

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent-1);
  padding-left: 4px;
}

.footer-newsletter p {
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.newsletter-form {
  display: flex;
  gap: 0;
}

.newsletter-form input {
  flex: 1;
  padding: 12px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm) 0 0 var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9rem;
  outline: none;
}

.newsletter-form input:focus {
  border-color: var(--accent-1);
}

.newsletter-form button {
  padding: 12px 18px;
  background: var(--accent-1);
  color: #fff;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  transition: var(--transition);
}

.newsletter-form button:hover {
  background: #5a52e0;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

.footer-bottom-links a {
  color: var(--text-muted);
}

.footer-bottom-links a:hover {
  color: var(--accent-1);
}

/* ---------- Back to Top ---------- */
.back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 48px;
  height: 48px;
  background: var(--gradient-btn);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1rem;
  box-shadow: var(--shadow-md);
  z-index: 999;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition: var(--transition);
}

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

.back-to-top:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 30px rgba(108, 99, 255, 0.4);
}

/* ---------- Animations ---------- */
[data-animate] {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

[data-animate="fade-left"] {
  transform: translateX(40px);
}

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

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .hero-container {
    grid-template-columns: 1fr;
    text-align: center;
  }

  .hero-subtitle {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-cta {
    justify-content: center;
  }

  .hero-stats {
    justify-content: center;
  }

  .hero-visual {
    display: none;
  }

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

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

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

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

@media (max-width: 768px) {
  .section {
    padding: 80px 0;
  }

  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    border-left: 1px solid var(--border);
    flex-direction: column;
    padding: 80px 32px 32px;
    gap: 4px;
    transition: right 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 1000;
  }

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

  .nav-link {
    padding: 14px 16px;
    width: 100%;
    border-radius: var(--radius-sm);
  }

  .nav-link.cta-link {
    margin-left: 0;
    text-align: center;
    justify-content: center;
    margin-top: 12px;
  }

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

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

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

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

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

  .stat-divider {
    width: 50px;
    height: 1px;
  }

  .stat {
    text-align: center;
  }

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

  .footer-bottom {
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }

  .scroll-indicator {
    display: none;
  }

  .cta-box {
    padding: 48px 24px;
  }

  .contact-form {
    padding: 24px;
  }

  .testimonial-card {
    padding: 32px 24px;
  }
}

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

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

  .section-title {
    font-size: 1.75rem;
  }

  .hero-cta {
    flex-direction: column;
    align-items: center;
  }

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