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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  font-size: 16px;
  font-weight: 400;
  color: #333;
  line-height: 1.6;
}

a {
  color: #3b82f6;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

/* === Layout === */
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 32px;
}

/* === Navigation === */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: #fff;
  border-bottom: 1px solid #e5e7eb;
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 32px;
  max-width: 1080px;
  margin: 0 auto;
}

.nav-logo {
  font-weight: 700;
  font-size: 18px;
  color: #1a1a2e;
}

.nav-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.nav-links a {
  font-size: 14px;
  color: #555;
  text-decoration: none;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #1a1a2e;
}

.nav-hamburger {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #1a1a2e;
  margin: 5px 0;
  transition: transform 0.3s, opacity 0.3s;
}

/* === Hero === */
.hero {
  position: relative;
  height: 500px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1a1a2e;
  overflow: hidden;
  margin-top: 57px; /* nav height */
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  opacity: 0.4;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(26,26,46,0.8) 0%, rgba(15,52,96,0.7) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  color: #fff;
}

.hero-label {
  font-size: 14px;
  letter-spacing: 3px;
  text-transform: uppercase;
  opacity: 0.7;
  margin-bottom: 16px;
}

.hero-title {
  font-size: 40px;
  font-weight: 700;
  margin-bottom: 12px;
}

.hero-subtitle {
  font-size: 18px;
  opacity: 0.8;
}

/* === Sections === */
.section {
  padding: 80px 0;
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: #1a1a2e;
  text-align: center;
  margin-bottom: 8px;
}

.section-subtitle {
  font-size: 16px;
  color: #666;
  text-align: center;
  margin-bottom: 48px;
}

/* === About === */
.about-text {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}

.about-text p {
  font-size: 16px;
  color: #555;
  line-height: 1.8;
  margin-bottom: 16px;
}

/* === Projects === */
.projects {
  background: #f9fafb;
}

.project-grid {
  display: flex;
  gap: 24px;
  justify-content: center;
}

.project-card {
  flex: 1;
  max-width: 400px;
  background: #fff;
  border-radius: 12px;
  padding: 28px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  border: 1px solid #e5e7eb;
  transition: box-shadow 0.2s;
}

.project-card:hover {
  box-shadow: 0 4px 12px rgba(0,0,0,0.12);
}

.project-label {
  font-size: 11px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: #0f3460;
  font-weight: 600;
  margin-bottom: 8px;
}

.project-name {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 12px;
}

.project-desc {
  font-size: 14px;
  color: #555;
  line-height: 1.7;
  margin-bottom: 16px;
}

.project-link {
  font-size: 14px;
  color: #0f3460;
  font-weight: 600;
  text-decoration: none;
}

.project-link:hover {
  text-decoration: underline;
}

/* === Contact === */
.contact {
  background: #f0f4ff;
}

.contact-card {
  max-width: 520px;
  margin: 0 auto;
  background: #fff;
  border-radius: 12px;
  padding: 32px;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: #333;
  margin-bottom: 6px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid #d1d5db;
  border-radius: 8px;
  font-size: 14px;
  font-family: inherit;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: #3b82f6;
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 16px;
}

.form-checkbox input[type="checkbox"] {
  margin-top: 4px;
  width: 16px;
  height: 16px;
}

.form-checkbox label {
  font-size: 13px;
  color: #555;
  line-height: 1.5;
}

.form-checkbox a {
  color: #3b82f6;
}

/* Honeypot — hidden from humans, visible to bots */
.form-hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: #3b82f6;
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-submit:hover {
  background: #2563eb;
}

.btn-submit:disabled {
  background: #93c5fd;
  cursor: not-allowed;
}

.form-message {
  margin-top: 16px;
  padding: 12px;
  border-radius: 8px;
  font-size: 14px;
  text-align: center;
  display: none;
}

.form-message.success {
  display: block;
  background: #f0fdf4;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.form-message.error {
  display: block;
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

/* === Footer === */
.footer {
  background: #1a1a2e;
  color: rgba(255,255,255,0.6);
  padding: 24px 0;
}

.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.footer-links {
  display: flex;
  gap: 20px;
  list-style: none;
}

.footer-links a {
  color: rgba(255,255,255,0.6);
  text-decoration: none;
  transition: color 0.2s;
}

.footer-links a:hover {
  color: #fff;
}

/* === Legal Pages === */
.legal-content {
  padding-top: 57px; /* nav height */
}

.legal-content h1 {
  font-size: 28px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 24px;
  padding-top: 40px;
}

.legal-content h2 {
  font-size: 20px;
  font-weight: 700;
  color: #1a1a2e;
  margin-top: 32px;
  margin-bottom: 12px;
}

.legal-content p {
  margin-bottom: 12px;
  line-height: 1.7;
  color: #555;
}

.legal-content ul {
  margin-bottom: 12px;
  padding-left: 24px;
}

.legal-content li {
  margin-bottom: 6px;
  color: #555;
  line-height: 1.7;
}

.legal-content a {
  color: #3b82f6;
}

/* === 404 === */
.not-found {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 60vh;
  text-align: center;
  padding-top: 57px;
}

.not-found h1 {
  font-size: 72px;
  font-weight: 700;
  color: #1a1a2e;
  margin-bottom: 8px;
}

.not-found p {
  font-size: 18px;
  color: #666;
  margin-bottom: 24px;
}

.not-found a {
  color: #3b82f6;
  font-weight: 600;
}

/* === Responsive === */
@media (max-width: 768px) {
  .nav-links {
    display: none;
    position: absolute;
    top: 57px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 16px 32px;
    border-bottom: 1px solid #e5e7eb;
    gap: 16px;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-hamburger {
    display: block;
  }

  .hero {
    height: 400px;
  }

  .hero-title {
    font-size: 28px;
  }

  .hero-subtitle {
    font-size: 16px;
  }

  .section {
    padding: 48px 0;
  }

  .project-grid {
    flex-direction: column;
    align-items: center;
  }

  .project-card {
    max-width: 100%;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }
}