/* --- Root Variables --- */
:root {
  --bg-primary: #0a0a0c;
  --bg-secondary: #141418;
  --bg-card: #1c1c22;
  --text-main: #f0f0f5;
  --text-muted: #a0a0b0;
  --accent: #6366f1;
  --accent-hover: #4f46e5;
  --border-color: #2e2e38;
  --font-family: 'Inter', system-ui, -apple-system, sans-serif;
  --transition: all 0.3s ease;
}

/* --- Base Reset --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-family);
  background-color: var(--bg-primary);
  color: var(--text-main);
}

body {
  line-height: 1.6;
  overflow-x: hidden;
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

/* --- Header / Nav --- */
#header {
  position: fixed;
  top: 0;
  width: 100%;
  z-index: 1000;
  padding: 1.5rem 0;
  transition: var(--transition);
  background: rgba(10, 10, 12, 0.8);
  backdrop-filter: blur(10px);
}

#header.scrolled {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border-color);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  text-decoration: none;
  letter-spacing: 1px;
}

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

.nav-links {
  display: flex;
  list-style: none;
  align-items: center;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 400;
  transition: var(--transition);
}

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

/* --- Buttons --- */
.btn {
  display: inline-block;
  padding: 0.8rem 1.8rem;
  border-radius: 8px;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  border: none;
  cursor: pointer;
}

.btn-primary {
  background-color: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-2px);
}

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

.btn-secondary:hover {
  background-color: var(--bg-card);
  border-color: var(--text-muted);
}

.btn-small {
  padding: 0.5rem 1.2rem;
  background-color: var(--accent);
  color: #fff;
}

.btn-block {
  width: 100%;
}

/* --- Sections Common --- */
section {
  padding: 6rem 0;
}

.section-title {
  margin-bottom: 3rem;
  text-align: center;
}

.section-title h2 {
  font-size: 2.2rem;
  font-weight: 800;
  margin-bottom: 0.5rem;
}

.section-title p {
  color: var(--text-muted);
}

/* --- Hero Section --- */
.hero-section {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at center, #1e1b4b 0%, var(--bg-primary) 70%);
}

.hero-content h1 {
  font-size: 3.5rem;
  font-weight: 800;
  margin-bottom: 1rem;
}

.hero-content p {
  font-size: 1.2rem;
  color: var(--text-muted);
  max-width: 600px;
  margin: 0 auto 2rem;
}

.highlight {
  color: var(--accent);
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  justify-content: center;
}

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

.about-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
  align-items: center;
}

.about-text p {
  margin-bottom: 1rem;
  color: var(--text-muted);
  font-size: 1.1rem;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stat-card {
  background-color: var(--bg-card);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
  text-align: center;
}

.stat-card h3 {
  font-size: 2.5rem;
  color: var(--accent);
}

.stat-card p {
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Work Section --- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  transition: var(--transition);
}

.card:hover {
  transform: translateY(-5px);
  border-color: var(--accent);
}

.tag {
  display: inline-block;
  background-color: rgba(99, 102, 241, 0.1);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.3rem 0.8rem;
  border-radius: 20px;
  margin-bottom: 1rem;
}

.card h3 {
  font-size: 1.4rem;
  margin-bottom: 0.5rem;
}

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

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

.contact-form {
  max-width: 600px;
  margin: 0 auto;
  background-color: var(--bg-card);
  padding: 2.5rem;
  border-radius: 12px;
  border: 1px solid var(--border-color);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  background-color: var(--bg-primary);
  color: var(--text-main);
  font-family: inherit;
  outline: none;
  transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-status {
  margin-top: 1rem;
  text-align: center;
  font-size: 0.9rem;
}

/* --- Footer --- */
footer {
  padding: 2rem 0;
  border-top: 1px solid var(--border-color);
  text-align: center;
  color: var(--text-muted);
  font-size: 0.9rem;
}

/* --- Responsive Layout --- */
@media (max-width: 768px) {
  .hero-content h1 {
    font-size: 2.5rem;
  }
  .about-grid {
    grid-template-columns: 1fr;
  }
}