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

body {
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.6;
  background: #f4f7fb;
  color: #1f2937;
}

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

a {
  color: #2563eb;
  text-decoration: none;
}

.container {
  width: min(1100px, 90%);
  margin: 0 auto;
}

header {
  background: #ffffff;
  border-bottom: 1px solid #dfe7f3;
  box-shadow: 0 3px 10px rgba(15, 23, 42, 0.04);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
}

.logo {
  font-size: 1.8rem;
  font-weight: 700;
  color: #0f172a;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.nav-links a {
  color: #475569;
  font-weight: 600;
}

.nav-links a:hover,
.nav-links a.active {
  color: #1d4ed8;
}

.main-page {
  padding: 3rem 0;
}

.hero {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  align-items: center;
  gap: 2rem;
  padding: 2rem 0 3rem;
}

.tag {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1rem;
  color: #2563eb;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.hero h1,
.content-box h1 {
  font-size: clamp(2.2rem, 4vw, 3.5rem);
  margin-bottom: 0.7rem;
  color: #0f172a;
}

.hero h2 {
  font-size: 1.4rem;
  color: #1d4ed8;
  margin-bottom: 1rem;
}

.hero p,
.content-box p,
.project-card p {
  color: #475569;
  margin-bottom: 1rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin-top: 1rem;
}

.btn {
  display: inline-block;
  padding: 0.85rem 1.3rem;
  border-radius: 8px;
  font-weight: 700;
  transition: 0.2s ease;
}

.btn:hover {
  opacity: 0.9;
}

.btn-primary {
  background: #2563eb;
  color: #fff;
}

.btn-secondary {
  background: #dbeafe;
  color: #1e3a8a;
}

.hero-image img {
  height: 420px;
  object-fit: cover;
  border-radius: 18px;
  box-shadow: 0 16px 30px rgba(15, 23, 42, 0.12);
}

.info-section,
.content-box {
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 18px;
  padding: 2rem;
  box-shadow: 0 10px 20px rgba(15, 23, 42, 0.04);
}

.info-section h3,
.content-box h2 {
  margin: 1rem 0 0.7rem;
  color: #0f172a;
}

.feature-list {
  list-style: disc;
  margin: 1rem 0 1rem 1.5rem;
  color: #334155;
}

.project-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.2rem;
  margin: 1.5rem 0;
}

.project-card {
  background: #f8fafc;
  border: 1px solid #e2e8f0;
  border-radius: 14px;
  padding: 1.4rem;
}

.project-card h3 {
  margin-bottom: 0.5rem;
  color: #1d4ed8;
}

.contact-form {
  display: grid;
  gap: 0.8rem;
  margin-top: 1rem;
}

.contact-form label {
  font-weight: 700;
  color: #0f172a;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 1px solid #cbd5e1;
  border-radius: 10px;
  font: inherit;
}

.contact-form button {
  width: fit-content;
  padding: 0.9rem 1.5rem;
  border: none;
  border-radius: 10px;
  background: #2563eb;
  color: white;
  font-weight: 700;
  cursor: pointer;
}

footer {
  background: #0f172a;
  color: #e2e8f0;
  text-align: center;
  padding: 1.1rem;
}

.skill-box {
  margin-top: 1rem;
}

.skill-label {
  display: flex;
  justify-content: space-between;
  margin-bottom: 0.5rem;
  font-weight: 700;
  color: #1f2937;
}

.progress {
  width: 100%;
  height: 14px;
  background: #e2e8f0;
  border-radius: 999px;
  overflow: hidden;
}

.progress span {
  display: block;
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, #2563eb, #60a5fa);
}

@media (max-width: 768px) {
  .navbar {
    flex-direction: column;
    gap: 0.8rem;
  }

  .hero,
  .project-grid {
    grid-template-columns: 1fr;
  }

  .nav-links {
    justify-content: center;
  }
}