:root {
  --navy-950: #020510;
  --navy-900: #050b1c;
  --navy-800: #0b1633;
  --navy-700: #132348;
  --navy-600: #1d315f;
  --navy-500: #2b4074;
  --sky-100: #101b33;
  --sky-200: #0c152a;
  --sky-300: #091020;
  --gold-400: #f7c45d;
  --teal-400: #3ec9c3;
  --text-dark: #f6f8ff;
  --text-body: rgba(231, 238, 255, 0.88);
  --text-muted: rgba(182, 199, 232, 0.7);
  --panel-bg: rgba(20, 32, 60, 0.92);
  --panel-border: rgba(90, 124, 195, 0.15);
  --white: #f9fbff;
  --max-width: min(1100px, 92vw);
  --radius-lg: 20px;
  --radius-md: 14px;
  --shadow: 0 40px 70px -35px rgba(2, 5, 16, 0.65);
  --transition: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Poppins", sans-serif;
  background: radial-gradient(circle at 20% -10%, rgba(62, 201, 195, 0.12) 0%, transparent 45%),
    linear-gradient(180deg, var(--navy-900) 0%, var(--sky-100) 45%, var(--sky-300) 100%);
  color: var(--text-body);
  line-height: 1.7;
  min-height: 100vh;
  opacity: 0;
  transition: opacity 0.45s ease;
}

body.loaded {
  opacity: 1;
}

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

a:hover,
a:focus {
  color: var(--teal-400);
}

ul {
  list-style: none;
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

section {
  padding: clamp(4.5rem, 6vw, 6.5rem) 0;
}

.container {
  width: var(--max-width);
  margin: 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.9rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: 0.01em;
  transition: var(--transition);
  cursor: pointer;
  text-align: center;
}

.btn.primary {
  background: linear-gradient(135deg, var(--teal-400), #5fe3dd);
  color: var(--white);
  box-shadow: 0 18px 35px rgba(62, 201, 195, 0.4);
}

.btn.primary:hover,
.btn.primary:focus {
  transform: translateY(-2px);
  box-shadow: 0 22px 40px rgba(62, 201, 195, 0.5);
}

.btn.ghost {
  border: 1px solid rgba(94, 132, 198, 0.45);
  color: var(--text-body);
  background: transparent;
}

.btn.ghost:hover,
.btn.ghost:focus {
  border-color: var(--teal-400);
  transform: translateY(-2px);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(4, 9, 20, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(66, 101, 176, 0.2);
}

.nav-container {
  width: var(--max-width);
  margin: 0 auto;
  padding: 1.2rem 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.brand {
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-dark);
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 1.6rem;
  font-size: 0.95rem;
  color: var(--text-body);
}

.site-nav a {
  position: relative;
  padding: 0.3rem 0;
}

.site-nav a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -0.35rem;
  width: 0;
  height: 2px;
  background: var(--teal-400);
  transition: width 0.3s ease;
}

.site-nav a:hover::after,
.site-nav a:focus::after {
  width: 100%;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  width: 2.75rem;
  aspect-ratio: 1 / 1;
  position: relative;
  cursor: pointer;
}

.nav-toggle-bar,
.nav-toggle-bar::before,
.nav-toggle-bar::after {
  content: "";
  position: absolute;
  left: 50%;
  width: 56%;
  height: 2px;
  border-radius: 999px;
  background: var(--text-dark);
  transition: var(--transition);
}

.nav-toggle-bar {
  top: 50%;
  transform: translate(-50%, -50%);
}

.nav-toggle-bar::before {
  top: -8px;
  transform: translate(-50%, 0);
}

.nav-toggle-bar::after {
  top: 8px;
  transform: translate(-50%, 0);
}

.hero {
  position: relative;
}

.hero-inner {
  display: grid;
  gap: clamp(2.5rem, 4vw, 4rem);
  grid-template-columns: minmax(0, 1.25fr) minmax(0, 0.9fr);
  align-items: center;
}

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

.hero-eyebrow {
  font-size: 0.85rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  font-weight: 600;
  color: var(--teal-400);
}

.hero h1 {
  font-size: clamp(2.6rem, 6vw, 3.4rem);
  color: var(--text-dark);
}

.hero-summary {
  font-size: 1.05rem;
  color: var(--text-body);
  max-width: 42rem;
}

.hero-meta {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

.meta-item {
  padding: 1rem 1.25rem;
  border-radius: var(--radius-md);
  background: var(--panel-bg);
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
}

.meta-label {
  display: block;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 0.3rem;
}

.meta-value {
  font-weight: 600;
  color: var(--text-dark);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(12rem, 1fr));
  gap: 1rem;
}

.stat-card {
  background: var(--panel-bg);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.stat-value {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text-dark);
}

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

.hero-profile {
  background: var(--panel-bg);
  border-radius: var(--radius-lg);
  padding: 2.4rem 2rem;
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 1.5rem;
}

.hero-portrait {
  overflow: hidden;
  border-radius: var(--radius-md);
}

.hero-portrait img {
  width: 100%;
  height: auto;
}

.hero-contact-card {
  display: grid;
  gap: 1rem;
}

.hero-contact-card p {
  color: var(--text-body);
}

.hero-socials {
  display: flex;
  gap: 0.8rem;
}

.social-link {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 50%;
  background: rgba(62, 201, 195, 0.12);
  border: 1px solid rgba(62, 201, 195, 0.4);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
}

.social-link svg {
  width: 1.25rem;
  height: 1.25rem;
  fill: var(--teal-400);
}

.social-link:hover,
.social-link:focus {
  transform: translateY(-2px);
  border-color: var(--teal-400);
  box-shadow: 0 10px 20px rgba(62, 201, 195, 0.35);
}

.contact-list {
  display: grid;
  gap: 0.75rem;
}

.contact-list li span {
  display: block;
  font-size: 0.8rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.contact-list a {
  font-weight: 600;
  color: var(--text-dark);
}

.section-header {
  max-width: 48rem;
  margin: 0 auto 3.25rem;
  text-align: center;
  display: grid;
  gap: 0.9rem;
}

.section-header h2 {
  font-size: clamp(2rem, 4.8vw, 2.6rem);
  color: var(--text-dark);
}

.section-header p {
  color: var(--text-body);
  font-size: 1.03rem;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--teal-400);
}

.summary-grid,
.education-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(15.5rem, 1fr));
}

.skills-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.info-card {
  background: var(--panel-bg);
  border-radius: var(--radius-md);
  padding: 1.8rem;
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 1rem;
}

.info-card h3 {
  font-size: 1.2rem;
  color: var(--text-dark);
}

.info-card ul {
  list-style: disc;
  padding-left: 1.1rem;
  color: var(--text-body);
  display: grid;
  gap: 0.5rem;
}

.info-card ul li::marker {
  color: var(--teal-400);
}

.achievement-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.achievement-card {
  background: var(--panel-bg);
  border-radius: var(--radius-md);
  padding: 2rem 1.8rem;
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 0.8rem;
}

.achievement-card h3 {
  color: var(--text-dark);
  font-size: 1.15rem;
}

.achievement-card p {
  color: var(--text-body);
}

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 0.3rem 0 0;
  padding: 0;
  list-style: none;
}

.tag {
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  background: rgba(62, 201, 195, 0.12);
  color: var(--teal-400);
  border: 1px solid rgba(62, 201, 195, 0.28);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.timeline {
  position: relative;
  display: grid;
  gap: 2.4rem;
  padding-left: 1.5rem;
}

.timeline::before {
  content: "";
  position: absolute;
  top: 0.4rem;
  left: 0.55rem;
  width: 2px;
  height: calc(100% - 0.8rem);
  background: linear-gradient(180deg, rgba(62, 201, 195, 0.6), rgba(62, 201, 195, 0));
}

.timeline-item {
  position: relative;
  display: grid;
  gap: 1rem;
}

.timeline-marker {
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--teal-400);
  border: 3px solid rgba(5, 11, 28, 0.85);
  position: absolute;
  left: -1rem;
  top: 0.35rem;
  box-shadow: 0 0 0 4px rgba(62, 201, 195, 0.18);
}

.timeline-content {
  background: var(--panel-bg);
  border-radius: var(--radius-md);
  padding: 1.9rem;
  border: 1px solid var(--panel-border);
  box-shadow: var(--shadow);
  display: grid;
  gap: 1rem;
}

.timeline-header h3 {
  font-size: 1.3rem;
  color: var(--text-dark);
}

.timeline-header p {
  color: var(--text-muted);
  font-weight: 500;
}

.timeline-content ul {
  list-style: disc;
  padding-left: 1.2rem;
  color: var(--text-body);
  display: grid;
  gap: 0.55rem;
}

.timeline-content ul li::marker {
  color: var(--teal-400);
}

.education-grid .education-role {
  font-weight: 600;
  color: var(--text-dark);
}

.education-grid .education-meta {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.contact-card {
  background: linear-gradient(135deg, rgba(11, 24, 52, 0.95), rgba(27, 49, 95, 0.92));
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: clamp(2.5rem, 4vw, 3.1rem);
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
  gap: clamp(2rem, 4vw, 3rem);
  align-items: start;
  box-shadow: var(--shadow);
}

.contact-card .eyebrow {
  color: rgba(255, 255, 255, 0.7);
}

.contact-card h2 {
  color: var(--white);
}

.contact-card p {
  color: rgba(255, 255, 255, 0.85);
}

.contact-details {
  display: grid;
  gap: 1.4rem;
}

.contact-details li {
  display: grid;
  gap: 0.35rem;
}

.contact-details span {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.7);
}

.contact-details a {
  font-weight: 600;
  color: var(--white);
}

.site-footer {
  text-align: center;
  padding: 2.5rem 1rem 3rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .hero-profile {
    grid-template-columns: minmax(0, 1fr);
  }

  .contact-card {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 1.5rem;
    background: var(--panel-bg);
    border-radius: var(--radius-md);
    border: 1px solid var(--panel-border);
    box-shadow: var(--shadow);
    padding: 1.2rem;
    opacity: 0;
    pointer-events: none;
    transform: translateY(-0.5rem);
    transition: var(--transition);
  }

  .site-nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }

  .site-nav.open {
    opacity: 1;
    pointer-events: auto;
    transform: translateY(0.5rem);
  }

  .nav-container {
    position: relative;
  }
}

@media (max-width: 640px) {
  .hero-meta {
    grid-template-columns: 1fr;
  }

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

  .btn {
    width: 100%;
  }

  .hero-actions {
    flex-direction: column;
  }
}

@media (max-width: 520px) {
  section {
    padding: 3.5rem 0;
  }

  .contact-card {
    padding: 2.2rem;
  }
}