:root {
  --color-bg: #0b1220;
  --color-bg-alt: rgba(22, 33, 62, 0.7);
  --color-surface: rgba(30, 41, 82, 0.85);
  --color-surface-strong: #1f2a48;
  --color-primary: #5bb0ff;
  --color-secondary: #00c896;
  --color-text: #f5f7ff;
  --color-muted: #96a2c6;
  --shadow-lg: 0 20px 45px rgba(11, 18, 32, 0.45);
  --shadow-md: 0 16px 30px rgba(11, 18, 32, 0.35);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
  --sidebar-width: 260px;
  --sidebar-width-md: 240px;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

body {
  font-family: 'Poppins', 'Segoe UI', sans-serif;
  background: radial-gradient(circle at top left, rgba(91, 176, 255, 0.25), transparent 55%),
              radial-gradient(circle at bottom right, rgba(0, 200, 150, 0.18), transparent 50%),
              var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
}

a {
  color: inherit;
  text-decoration: none;
}

.sidebar {
  width: var(--sidebar-width);
  background: linear-gradient(180deg, rgba(22, 30, 55, 0.95) 0%, rgba(12, 18, 36, 0.95) 100%);
  backdrop-filter: blur(12px);
  padding: 2.5rem 2rem 2rem;
  position: fixed;
  inset: 0 auto 0 0;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  z-index: 1050;
  transition: transform 0.3s ease-in-out;
  transform: translateX(-100%);
}

body.sidebar-open .sidebar {
  transform: translateX(0);
}

.logo {
  font-size: 1.9rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-align: center;
  color: var(--color-primary);
  margin: 0;
}

.sidebar-tagline {
  text-align: center;
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.7rem;
  color: var(--color-muted);
  margin: -1rem 0 1rem;
}

.sidebar nav {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.sidebar nav a {
  padding: 0.75rem 1.1rem;
  border-radius: var(--radius-sm);
  font-weight: 500;
  color: var(--color-muted);
  transition: background 0.3s ease, color 0.3s ease;
}

.sidebar nav a:hover,
.sidebar nav a:focus {
  background: rgba(91, 176, 255, 0.12);
  color: var(--color-primary);
}

.sidebar-socials {
  margin-top: auto;
  display: flex;
  justify-content: center;
  gap: 1rem;
}

.sidebar-socials a {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(91, 176, 255, 0.12);
  color: var(--color-primary);
  transition: transform 0.3s ease, background 0.3s ease;
}

.sidebar-socials a:hover {
  transform: translateY(-4px);
  background: rgba(0, 200, 150, 0.18);
  color: var(--color-secondary);
}

.menu-toggle {
  display: inline-flex;
  position: fixed;
  top: 1.2rem;
  left: 1.2rem;
  z-index: 1100;
  background: rgba(16, 36, 68, 0.9);
  color: var(--color-primary);
  border: 2px solid rgba(91, 176, 255, 0.65);
  border-radius: 999px;
  padding: 0.55rem 1rem;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  align-items: center;
  gap: 0.5rem;
  transition: background 0.3s ease, color 0.3s ease, border-color 0.3s ease;
}

.menu-toggle:hover,
body.sidebar-open .menu-toggle {
  background: var(--color-primary);
  color: #021224;
  border-color: transparent;
}

.menu-toggle i {
  font-size: 1.1rem;
}

.menu-toggle span {
  font-weight: 600;
}

main {
  margin-left: 0;
  flex: 1;
  padding: 0;
}

section {
  padding: clamp(4rem, 6vw, 6rem) 0;
  position: relative;
}

.section-alt {
  background: linear-gradient(180deg, rgba(26, 39, 73, 0.7) 0%, rgba(10, 16, 34, 0.85) 100%);
}

.container {
  width: min(1080px, 90%);
  margin: 0 auto;
}

.hero {
  padding-top: clamp(6rem, 8vw, 8rem);
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: center;
}

.hero-text {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.28em;
  font-size: 0.75rem;
  color: var(--color-muted);
  margin: 0;
}

.hero h1 {
  font-size: clamp(2.6rem, 4vw, 3.5rem);
  margin: 0;
  line-height: 1.15;
}

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

.subtext {
  margin: 0;
  font-size: 1.05rem;
  color: rgba(245, 247, 255, 0.82);
}

.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.btn {
  border-radius: 999px;
  padding: 0.85rem 1.8rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  font-weight: 600;
  transition: transform 0.3s ease, box-shadow 0.3s ease, background 0.3s ease;
}

.btn.primary {
  background: linear-gradient(135deg, var(--color-primary), #4495f0);
  color: #021224;
  box-shadow: var(--shadow-lg);
}

.btn.primary:hover {
  transform: translateY(-2px);
}

.btn.ghost {
  background: rgba(91, 176, 255, 0.12);
  color: var(--color-primary);
  border: 1px solid rgba(91, 176, 255, 0.35);
}

.btn.ghost:hover {
  background: rgba(0, 200, 150, 0.14);
  color: var(--color-secondary);
}

.cred-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 0.75rem;
}

.cred-list li {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.95rem;
  color: rgba(245, 247, 255, 0.82);
}

.cred-list i {
  color: var(--color-secondary);
}

.socials {
  display: flex;
  gap: 1rem;
}

.socials a {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  background: rgba(91, 176, 255, 0.12);
  color: var(--color-primary);
  border: 1px solid rgba(91, 176, 255, 0.18);
  transition: transform 0.3s ease, background 0.3s ease;
}

.socials a:hover {
  transform: translateY(-4px);
  background: rgba(0, 200, 150, 0.18);
  color: var(--color-secondary);
}

.hero-media {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  align-items: center;
}

.hero-avatar {
  width: clamp(240px, 35vw, 300px);
  aspect-ratio: 1;
  border-radius: 32px;
  background: radial-gradient(circle at 30% 30%, rgba(91, 176, 255, 0.4) 0%, rgba(11, 18, 32, 0.7) 60%, rgba(6, 12, 26, 0.95) 100%);
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-lg);
  position: relative;
  overflow: hidden;
}

.hero-avatar::after {
  content: "";
  position: absolute;
  inset: 12px;
  border-radius: 26px;
  border: 1px solid rgba(91, 176, 255, 0.25);
}

.avatar-initials {
  font-size: clamp(3.5rem, 8vw, 4.5rem);
  font-weight: 700;
  letter-spacing: 0.1em;
  color: rgba(245, 247, 255, 0.85);
}

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

.badge-card {
  background: rgba(30, 41, 82, 0.85);
  border: 1px solid rgba(91, 176, 255, 0.2);
  padding: 1rem 1.5rem;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: rgba(245, 247, 255, 0.85);
  box-shadow: var(--shadow-md);
}

.badge-card i {
  color: var(--color-secondary);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: clamp(2.5rem, 6vw, 5rem);
  align-items: start;
}

.about-text h2 {
  font-size: clamp(2rem, 3vw, 2.4rem);
  margin-bottom: 1rem;
}

.about-text p {
  color: rgba(245, 247, 255, 0.78);
  margin-bottom: 1rem;
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-top: 1.5rem;
}

.tag {
  background: rgba(91, 176, 255, 0.14);
  border: 1px solid rgba(91, 176, 255, 0.22);
  color: var(--color-primary);
  padding: 0.45rem 0.9rem;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
}

.stats-grid {
  display: grid;
  gap: 1.2rem;
}

.stat-card {
  background: rgba(11, 18, 32, 0.6);
  border-radius: var(--radius-md);
  padding: 1.8rem 1.6rem;
  border: 1px solid rgba(91, 176, 255, 0.15);
  box-shadow: var(--shadow-md);
}

.stat-value {
  display: block;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--color-secondary);
}

.stat-label {
  font-size: 0.9rem;
  color: rgba(245, 247, 255, 0.7);
}

.section-heading {
  max-width: 620px;
  margin-bottom: clamp(2rem, 3vw, 3rem);
}

.section-heading h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(2rem, 3vw, 2.5rem);
}

.section-heading p {
  margin: 0;
  color: rgba(245, 247, 255, 0.72);
}

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: clamp(1.8rem, 3vw, 2.4rem);
}

.project-card {
  background: rgba(14, 23, 45, 0.85);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(91, 176, 255, 0.18);
  display: flex;
  flex-direction: column;
  min-height: 100%;
  box-shadow: var(--shadow-md);
  transition: transform 0.4s ease, box-shadow 0.4s ease;
}

.project-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 28px 50px rgba(5, 13, 30, 0.55);
}

.project-image {
  width: 100%;
  padding-top: 58%;
  background-size: cover;
  background-position: center;
}

.project-content {
  padding: 1.8rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  flex: 1;
}

.project-content h3 {
  margin: 0;
  font-size: 1.4rem;
}

.project-content p {
  margin: 0;
  color: rgba(245, 247, 255, 0.75);
  font-size: 0.95rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
  margin: 0;
  list-style: none;
}

.project-tags li {
  background: rgba(91, 176, 255, 0.12);
  color: var(--color-primary);
  border-radius: 999px;
  padding: 0.35rem 0.75rem;
  font-size: 0.8rem;
}

.project-links {
  margin-top: auto;
}

.project-links a {
  color: var(--color-secondary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.project-links a::after {
  content: "\f061";
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.75rem;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.skill-card {
  background: rgba(11, 18, 32, 0.55);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  border: 1px solid rgba(91, 176, 255, 0.18);
  box-shadow: var(--shadow-md);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.skill-card h3 {
  margin: 0;
  font-size: 1.2rem;
}

.skill-card p {
  margin: 0;
  color: rgba(245, 247, 255, 0.75);
}

.chip-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.chip {
  background: rgba(0, 200, 150, 0.16);
  color: var(--color-secondary);
  border-radius: 999px;
  padding: 0.35rem 0.8rem;
  font-size: 0.78rem;
  font-weight: 600;
}

.contact-layout {
  display: flex;
  flex-direction: column;
  gap: clamp(2rem, 4vw, 3rem);
}

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: clamp(1.2rem, 3vw, 2rem);
}

.contact-card {
  background: rgba(14, 23, 45, 0.75);
  border-radius: var(--radius-md);
  padding: 1.6rem;
  border: 1px solid rgba(91, 176, 255, 0.18);
  display: flex;
  gap: 1rem;
  align-items: center;
  transition: transform 0.3s ease, background 0.3s ease;
}

.contact-card:hover {
  transform: translateY(-6px);
  background: rgba(0, 200, 150, 0.16);
}

.contact-card i {
  font-size: 1.6rem;
  color: var(--color-secondary);
}

.contact-card h3 {
  margin: 0 0 0.35rem;
}

.contact-card a {
  color: var(--color-primary);
  font-weight: 600;
}

.site-footer {
  background: rgba(9, 14, 28, 0.9);
  padding: 2rem 0;
  text-align: center;
  border-top: 1px solid rgba(91, 176, 255, 0.18);
}

.site-footer p {
  margin: 0;
  color: rgba(245, 247, 255, 0.6);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
}

.menu-toggle,
main {
  transition: transform 0.3s ease-in-out;
}

body.sidebar-open {
  overflow: hidden;
}

body.sidebar-open::after {
  content: "";
  position: fixed;
  inset: 0;
  background: rgba(5, 10, 22, 0.75);
  z-index: 900;
  pointer-events: none;
}

@media (max-width: 1024px) {
  .sidebar {
    width: var(--sidebar-width-md);
  }

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

  .hero-media {
    order: -1;
  }
}

@media (max-width: 900px) {
  .sidebar {
    transform: translateX(-100%);
    width: min(280px, 80vw);
    box-shadow: 22px 0 45px rgba(4, 9, 20, 0.6);
  }

  main {
    margin-left: 0;
    padding-top: 5rem;
  }
}

@media (max-width: 640px) {
  .container {
    width: min(94%, 480px);
  }

  .hero-layout {
    gap: 2rem;
  }

  .hero-avatar {
    width: min(80vw, 260px);
  }

  .cta-group {
    flex-direction: column;
    align-self: stretch;
  }

  .cred-list li {
    align-items: flex-start;
  }

  .stats-grid {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  }
}