@import url('https://fonts.googleapis.com/css2?family=Fira+Code:wght@400;500;700&family=Inter:wght@300;400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');

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

:root {
  --bg-dark: #081931;
  --bg-card: #0B2447;
  --bg-hover: #0F3A5F;
  --text-primary: #A5D7E8;
  --text-white: #ffffff;
  --accent: #4A9EBF;
  --accent-light: #7BB8D4;
  --border: #1a4d6d;
  --success: #6FCF97;
}

body {
  background-color: var(--bg-dark);
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== HEADER ===== */
header {
  background-color: var(--bg-card);
  position: sticky;
  top: 0;
  z-index: 1000;
  backdrop-filter: blur(10px);
  background-color: rgba(11, 36, 71, 0.95);
  border-bottom: 1px solid var(--border);
}

.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  max-width: 1400px;
  margin: 0 auto;
  width: 100%;
}

.logo {
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text-white);
  font-family: 'Fira Code', monospace;
  letter-spacing: 2px;
}

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

.nav-links {
  list-style: none;
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-primary);
  font-weight: 500;
  font-size: 0.95rem;
  transition: all 0.3s ease;
  position: relative;
}

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

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-links a:hover::after {
  width: 100%;
}

.resume-btn {
  padding: 0.6rem 1.5rem;
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent);
  border-radius: 4px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
}

.resume-btn:hover {
  background-color: var(--accent);
  color: var(--bg-dark);
  box-shadow: 0 8px 20px rgba(74, 158, 191, 0.3);
}

.nav-toggle {
  display: none;
}

.nav-toggle-label {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
}

.nav-toggle-label span {
  width: 25px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

/* ===== INTRO SECTION ===== */
.intro {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  padding: 5rem 2rem;
  gap: 3rem;
  background: linear-gradient(135deg, rgba(8, 25, 49, 0.9) 0%, rgba(11, 36, 71, 0.5) 100%);
  position: relative;
  overflow: hidden;
}

.intro::before {
  content: '';
  position: absolute;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(74, 158, 191, 0.1) 0%, transparent 70%);
  top: -100px;
  right: -100px;
  border-radius: 50%;
}

.intro-text {
  flex: 1 1 350px;
  max-width: 550px;
  z-index: 10;
  animation: slideInLeft 0.8s ease-out;
}

.intro-text > p:first-child {
  color: var(--accent);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  letter-spacing: 1px;
}

.intro-text h1 {
  font-size: 3.5rem;
  color: var(--text-white);
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 1rem;
  font-family: 'Poppins', sans-serif;
}

.intro-text .description {
  font-size: 1.05rem;
  color: var(--text-primary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.intro-text .cta-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.cta-btn {
  padding: 0.8rem 2rem;
  border: none;
  border-radius: 6px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s ease;
  font-size: 0.95rem;
  text-decoration: none;
  display: inline-block;
}

.cta-btn-primary {
  background: var(--accent);
  color: var(--bg-dark);
}

.cta-btn-primary:hover {
  background: var(--accent-light);
  box-shadow: 0 12px 30px rgba(74, 158, 191, 0.4);
  transform: translateY(-3px);
}

.cta-btn-secondary {
  background: transparent;
  border: 1.5px solid var(--accent);
  color: var(--accent);
}

.cta-btn-secondary:hover {
  background: rgba(74, 158, 191, 0.1);
  box-shadow: 0 12px 30px rgba(74, 158, 191, 0.2);
}

.intro-img {
  flex: 1 1 300px;
  text-align: center;
  animation: slideInRight 0.8s ease-out;
}

.intro-img img {
  width: 280px;
  height: 280px;
  border-radius: 20px;
  border: 3px solid var(--accent);
  box-shadow: 0 20px 60px rgba(74, 158, 191, 0.2);
  transition: transform 0.3s ease;
}

.intro-img img:hover {
  transform: scale(1.05);
}

/* ===== SECTIONS ===== */
section {
  padding: 0 2rem;
  max-width: 1400px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  padding: 3rem 0 2rem;
  color: var(--text-white);
  font-weight: 700;
  position: relative;
}

.section-title::after {
  content: '';
  display: block;
  width: 60px;
  height: 3px;
  background: var(--accent);
  margin: 1rem auto 0;
  border-radius: 2px;
}

/* ===== PROJECTS SECTION ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
  padding: 2rem 0 4rem;
}

.card {
  background: var(--bg-card);
  padding: 1.5rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  transition: all 0.3s ease;
  overflow: hidden;
  position: relative;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-light));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s ease;
}

.card:hover::before {
  transform: scaleX(1);
}

.card:hover {
  transform: translateY(-8px);
  border-color: var(--accent);
  box-shadow: 0 15px 40px rgba(74, 158, 191, 0.15);
}

.card-link {
  text-decoration: none;
  display: block;
}

.card i {
  color: var(--accent);
  transition: all 0.3s ease;
}

.card:hover i {
  transform: scale(1.2);
  color: var(--accent-light);
}

.card h3 {
  margin: 1.2rem 0 0.6rem;
  color: var(--text-white);
  font-size: 1.3rem;
  font-weight: 600;
}

.card p {
  font-size: 0.95rem;
  color: var(--text-primary);
  line-height: 1.6;
  margin-bottom: 1rem;
}

.card ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  font-size: 0.8rem;
}

.card li {
  background: rgba(74, 158, 191, 0.15);
  padding: 0.4rem 0.8rem;
  border-radius: 4px;
  color: var(--accent-light);
  border: 1px solid rgba(74, 158, 191, 0.3);
}

/* ===== RESUME SECTION ===== */
.resume-section {
  padding: 4rem 0;
}

.resume-container {
  background: linear-gradient(135deg, var(--bg-card) 0%, rgba(15, 58, 95, 0.5) 100%);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.5rem;
  margin: 2rem 0;
}

.resume-header {
  margin-bottom: 2rem;
  padding-left: 2rem;
}

.resume-name {
  font-size: 2rem;
  color: var(--text-white);
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.resume-summary {
  color: var(--text-primary);
  line-height: 1.8;
  margin-bottom: 2rem;
}

.resume-section-title {
  font-size: 1.4rem;
  color: var(--accent-light);
  font-weight: 600;
  margin-top: 2rem;
  margin-bottom: 1rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--border);
}

.resume-entry {
  margin-bottom: 1.5rem;
}

.resume-entry-title {
  font-weight: 600;
  color: var(--text-white);
  font-size: 1.05rem;
}

.resume-entry-subtitle {
  font-size: 0.9rem;
  color: var(--accent);
  margin: 0.3rem 0;
}

.resume-entry-text {
  color: var(--text-primary);
  font-size: 0.9rem;
  line-height: 1.7;
  margin-top: 0.5rem;
}

.resume-entry ul {
  list-style: none;
  margin-left: 1rem;
  margin-top: 0.5rem;
}

.resume-entry li {
  color: var(--text-primary);
  font-size: 0.9rem;
  margin-bottom: 0.4rem;
  line-height: 1.6;
}

.resume-entry li::before {
  content: '▸ ';
  color: var(--accent);
  margin-right: 0.5rem;
}

.resume-download {
  display: inline-block;
  margin-top: 1rem;
  padding: 0.7rem 1.5rem;
  background: var(--accent);
  color: var(--bg-dark);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
}

.resume-download:hover {
  background: var(--accent-light);
  box-shadow: 0 8px 20px rgba(74, 158, 191, 0.3);
}

.tabs {
  display: flex;
  gap: 1rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.tab-btn {
  padding: 0.7rem 1.5rem;
  background: transparent;
  border: 1.5px solid var(--border);
  color: var(--text-primary);
  border-radius: 6px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.tab-btn.active {
  background: var(--accent);
  color: var(--bg-dark);
  border-color: var(--accent);
}

.tab-btn:hover {
  border-color: var(--accent);
  color: var(--accent-light);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* ===== CONTACT SECTION ===== */
.contact-section {
  text-align: center;
  padding: 4rem 0;
}

.contact-section h2 {
  font-size: 2.5rem;
  color: var(--text-white);
  margin-bottom: 1.5rem;
  font-weight: 700;
}

.contact-section p {
  max-width: 700px;
  margin: 0 auto 2.5rem;
  font-size: 1.05rem;
  color: var(--text-primary);
  line-height: 1.8;
}

.contact-btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--accent);
  color: var(--bg-dark);
  border-radius: 6px;
  text-decoration: none;
  font-weight: 600;
  transition: all 0.3s ease;
  font-size: 1rem;
}

.contact-btn:hover {
  background: var(--accent-light);
  box-shadow: 0 12px 30px rgba(74, 158, 191, 0.4);
  transform: translateY(-3px);
}

/* ===== FOOTER ===== */
footer {
  background: var(--bg-card);
  text-align: center;
  padding: 2rem;
  color: var(--text-primary);
  border-top: 1px solid var(--border);
  margin-top: 4rem;
}

/* ===== ANIMATIONS ===== */
@keyframes slideInLeft {
  from {
    opacity: 0;
    transform: translateX(-30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideInRight {
  from {
    opacity: 0;
    transform: translateX(30px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .nav-links {
    position: absolute;
    top: 100%;
    right: 0;
    background: var(--bg-card);
    width: 100%;
    flex-direction: column;
    align-items: center;
    gap: 1rem;
    padding: 1.5rem;
    display: none;
    border-bottom: 1px solid var(--border);
  }

  .nav-toggle:checked + .nav-links {
    display: flex;
  }

  .nav-toggle-label {
    display: flex;
  }

  .intro {
    flex-direction: column;
    padding: 3rem 1.5rem;
  }

  .intro-text h1 {
    font-size: 2.5rem;
  }

  .intro-img img {
    width: 220px;
    height: 220px;
  }

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

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

  .resume-container {
    padding: 1.5rem;
  }

  .resume-name {
    font-size: 1.5rem;
  }

  .cta-buttons {
    flex-direction: column;
  }

  .cta-btn {
    width: 100%;
    text-align: center;
  }
}