/* ─── Design Tokens ─── */
:root {
  --bg: #080C14;
  --surface: #0D1322;
  --surface-light: #14213E;
  --text-primary: #ECF0FA;
  --text-secondary: #5D6E90;
  --accent: #00BFA6;
  --accent-warm: #FFB84A;
  --line: rgba(0, 191, 166, 0.12);
  --line-subtle: rgba(255, 255, 255, 0.05);
  --radius-lg: 24px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --container: 1200px;
  --font-heading: "Manrope", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif;
  --font-mono: "Courier New", "Lucida Console", monospace;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.6);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background-color: var(--bg);
  color: var(--text-primary);
  line-height: 1.65;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.25s ease, background 0.25s ease, opacity 0.25s ease;
}

ul { list-style: none; }

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

/* ─── Layout ─── */
.page-shell {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
}

.section {
  padding: 100px 24px;
  max-width: var(--container);
  margin: 0 auto;
}

/* ─── Typography ─── */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 800;
  line-height: 1.08;
  text-wrap: balance;
}

h1 { font-size: clamp(3.2rem, 7vw, 5.5rem); letter-spacing: -0.03em; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); letter-spacing: -0.025em; }
h3 { font-size: 1.25rem; letter-spacing: -0.01em; }

.accent-text { color: var(--accent); }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 20px;
  display: inline-block;
}

.eyebrow-secondary {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  letter-spacing: 0.06em;
  margin-bottom: 28px;
  display: block;
}

/* ─── Navbar ─── */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 20px 0;
}

.navbar {
  max-width: var(--container);
  margin: 0 auto;
  padding: 12px 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(8, 12, 20, 0.9);
  backdrop-filter: blur(16px);
  border: 1px solid var(--line);
  border-radius: 100px;
  transition: border-color 0.3s;
}

.navbar:hover { border-color: rgba(0, 191, 166, 0.22); }

.brand {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

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

.nav-panel {
  display: flex;
  gap: 28px;
  align-items: center;
}

.nav-panel a {
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-secondary);
}

.nav-panel a:hover { color: var(--text-primary); }

.nav-button {
  padding: 9px 22px;
  border: 1px solid rgba(0, 191, 166, 0.35);
  border-radius: 50px;
  color: var(--accent) !important;
  font-weight: 600 !important;
}

.nav-button:hover {
  background: var(--accent);
  color: var(--bg) !important;
  border-color: var(--accent);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 6px;
  width: 40px;
  height: 40px;
  justify-content: center;
  align-items: center;
  z-index: 1001;
}

.menu-toggle span {
  width: 24px;
  height: 1.5px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: 0.3s ease;
}

.menu-toggle.is-active span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
.menu-toggle.is-active span:nth-child(2) { opacity: 0; }
.menu-toggle.is-active span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* ─── Hero ─── */
.hero {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 100vh;
  gap: 60px;
  padding-top: 120px;
}

.hero-copy { flex: 1.1; max-width: 580px; }

.hero-content h1 { margin-bottom: 24px; }

.hero-text {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 460px;
  margin-bottom: 40px;
  line-height: 1.75;
}

/* ─── Buttons ─── */
.button {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 30px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 0.95rem;
  transition: all 0.25s ease;
}

.button-primary {
  background: var(--accent);
  color: var(--bg);
}

.button-primary:hover {
  background: #00D6B8;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 191, 166, 0.28);
}

/* ─── Portrait ─── */
.hero-visual {
  flex: 0.9;
  display: flex;
  justify-content: flex-end;
}

.portrait-wrap {
  position: relative;
  width: 100%;
  max-width: 420px;
}

/* Offset decorative teal border — top-right */
.portrait-wrap::before {
  content: '';
  position: absolute;
  top: 24px;
  right: -18px;
  width: 55%;
  height: 55%;
  border: 1.5px solid var(--accent);
  border-radius: var(--radius-md);
  opacity: 0.25;
  z-index: 0;
  pointer-events: none;
}

/* Warm amber accent square — bottom-left */
.portrait-wrap::after {
  content: '';
  position: absolute;
  bottom: -14px;
  left: -14px;
  width: 64px;
  height: 64px;
  background: var(--accent-warm);
  border-radius: var(--radius-sm);
  opacity: 0.45;
  z-index: 0;
  pointer-events: none;
}

.portrait-frame {
  width: 100%;
  aspect-ratio: 3/4;
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
  z-index: 1;
}

/* Bottom gradient on portrait */
.portrait-frame::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(8, 12, 20, 0.45) 0%, transparent 55%);
  z-index: 2;
  pointer-events: none;
}

.portrait-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

/* ─── Services ─── */
.services-section { background: transparent; }

.services-container {
  display: flex;
  gap: 80px;
  align-items: flex-start;
}

.services-header { flex: 1; }

.services-header h2 { margin-bottom: 20px; }

.services-header p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.75;
  margin-bottom: 32px;
}

.services-list {
  margin-bottom: 40px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.services-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text-primary);
  font-weight: 500;
}

.services-list li i { color: var(--accent); font-size: 0.9rem; }

.services-cta { margin-top: 16px; }

/* ─── Stats ─── */
.experience-stats {
  margin-top: 80px;
  padding: 52px 48px;
  background:
    radial-gradient(ellipse 70% 100% at 50% 0%, rgba(0, 191, 166, 0.05) 0%, transparent 70%),
    var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  position: relative;
  overflow: hidden;
}

.stats-main-row {
  display: flex;
  justify-content: space-around;
  align-items: stretch;
  gap: 0;
  position: relative;
  z-index: 1;
}

.stat-item {
  flex: 1;
  text-align: left;
  padding: 0 32px;
}

.stat-item + .stat-item {
  border-left: 1px solid var(--line-subtle);
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(2.8rem, 5vw, 4rem);
  font-weight: 800;
  color: var(--accent-warm);
  line-height: 1;
  margin-bottom: 12px;
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.73rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  line-height: 1.5;
}

/* ─── Service Cards ─── */
.services-grid {
  flex: 1.2;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.service-card {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 28px;
  background: var(--surface);
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-md);
  transition: border-color 0.3s, background 0.3s, transform 0.3s, box-shadow 0.3s;
  position: relative;
  overflow: hidden;
}

.service-card:hover {
  background: var(--surface-light);
  border-color: var(--line);
  transform: translateX(6px);
  box-shadow: inset 0 1px 0 rgba(0, 191, 166, 0.5);
}

.service-icon {
  min-width: 62px;
  height: 62px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 191, 166, 0.08);
  color: var(--accent);
  font-size: 1.55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  flex-shrink: 0;
  transition: background 0.25s, color 0.25s;
}

.service-card:hover .service-icon {
  background: var(--accent);
  color: var(--bg);
  border-color: var(--accent);
}

.service-info h3 { font-size: 1.2rem; margin-bottom: 4px; }

.service-info p { color: var(--text-secondary); font-size: 0.9rem; }

/* ─── Skills & Experience ─── */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.skills-column h2,
.experience-column h2 {
  font-size: clamp(1.8rem, 3vw, 2.5rem);
  margin-bottom: 40px;
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.skill-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 22px 14px;
  background: var(--surface);
  border: 1px solid var(--line-subtle);
  border-radius: var(--radius-md);
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
  cursor: default;
  position: relative;
  overflow: hidden;
}

.skill-item:hover {
  background: var(--surface-light);
  border-color: var(--line);
  transform: translateY(-3px);
}

.skill-icon {
  font-size: 2rem;
  color: var(--accent);
  transition: color 0.25s;
}

.skill-item span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  font-weight: 600;
  text-align: center;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--text-secondary);
  transition: color 0.25s;
}

.skill-item:hover span { color: var(--text-primary); }

/* ─── Timeline ─── */
.timeline {
  display: flex;
  flex-direction: column;
}

.timeline-item {
  position: relative;
  padding: 20px 0 20px 24px;
  border-left: 1px solid var(--line-subtle);
}

.timeline-item + .timeline-item { border-top: 1px solid var(--line-subtle); }

.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 26px;
  width: 9px;
  height: 9px;
  background: var(--accent);
  border: 2px solid var(--bg);
  border-radius: 50%;
}

.timeline-item h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
}

/* ─── Projects ─── */
.section-heading-centered {
  text-align: center;
  margin-bottom: 56px;
}

.projects-carousel {
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-lg);
}

.projects-track {
  display: flex;
  transition: transform 0.8s cubic-bezier(0.7, 0, 0.3, 1);
}

.project-slide { min-width: 100%; }

.project-card {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line-subtle);
  height: 580px;
  position: relative;
}

.project-image {
  width: 100%;
  height: 100%;
}

.project-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.project-card:hover .project-image img { transform: scale(1.025); }

.project-overlay {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 48px 36px 36px;
  background: linear-gradient(to top, rgba(8, 12, 20, 0.95) 0%, rgba(8, 12, 20, 0.5) 60%, transparent 100%);
  z-index: 3;
}

.project-tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
  margin-bottom: 8px;
}

.project-overlay h3 {
  font-size: 1.6rem;
  color: var(--text-primary);
}

.projects-controls {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 24px;
  margin-top: 32px;
}

.projects-arrow {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border: 1px solid var(--line-subtle);
  border-radius: 50%;
  color: var(--text-secondary);
  font-size: 1.4rem;
  cursor: pointer;
  transition: all 0.25s;
}

.projects-arrow:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.projects-dots { display: flex; gap: 10px; align-items: center; }

.projects-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--line-subtle);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: all 0.3s;
}

.projects-dot.is-active {
  background: var(--accent);
  border-color: var(--accent);
  width: 28px;
  border-radius: 4px;
}

/* ─── Contact ─── */
.contact-section { padding-bottom: 60px; }

.contact-header { margin-bottom: 64px; }

.contact-header h2 { font-size: clamp(2.2rem, 4.5vw, 4rem); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 80px;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 20px;
}

.contact-icon {
  width: 50px;
  height: 50px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 191, 166, 0.07);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 1.15rem;
  flex-shrink: 0;
}

.contact-text span {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 4px;
}

.contact-text a,
.contact-text p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
}

.contact-text a:hover { color: var(--accent); }

.social-links-footer {
  display: flex;
  gap: 10px;
  margin-top: 10px;
}

.social-links-footer a {
  width: 42px;
  height: 42px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--surface);
  border: 1px solid var(--line-subtle);
  color: var(--text-secondary);
  font-size: 1rem;
  transition: all 0.25s;
}

.social-links-footer a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}

.footer-links { display: flex; justify-content: space-between; gap: 40px; }

.link-group h4 {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-secondary);
  margin-bottom: 20px;
  font-weight: 600;
}

.link-group ul li { margin-bottom: 10px; }

.link-group ul li a { font-size: 0.95rem; color: var(--text-secondary); }

.link-group ul li a:hover { color: var(--accent); }

/* ─── Footer ─── */
.site-footer {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  border-top: 1px solid var(--line-subtle);
}

.footer-bottom {
  padding: 36px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--text-secondary);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
}

/* ─── Reveal Animations ─── */
.reveal {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 0.75s ease-out, transform 0.75s ease-out;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { transition: none; opacity: 1; transform: none; }
}

/* ─── Card Hover Glow ─── */
.service-card,
.skill-item,
.project-card,
.experience-stats {
  position: relative;
  overflow: hidden;
}

.service-card::before,
.skill-item::before,
.project-card::before,
.experience-stats::before {
  content: '';
  position: absolute;
  top: 0; left: 0; width: 100%; height: 100%;
  background: radial-gradient(
    circle 220px at var(--mouse-x, -9999px) var(--mouse-y, -9999px),
    rgba(0, 191, 166, 0.1),
    transparent 100%
  );
  pointer-events: none;
  z-index: 5;
  opacity: 0;
  transition: opacity 0.3s;
}

.service-card:hover::before,
.skill-item:hover::before,
.project-card:hover::before,
.experience-stats:hover::before {
  opacity: 1;
}

/* ─── Responsive — 1024px ─── */
@media (max-width: 1024px) {
  .hero {
    flex-direction: column;
    text-align: center;
    padding-top: 150px;
    gap: 48px;
  }

  .hero-copy { max-width: 100%; }

  .hero-text { margin: 0 auto 40px; }

  .hero-visual { justify-content: center; }

  .portrait-wrap { max-width: 320px; }

  .services-container {
    flex-direction: column;
    gap: 48px;
  }

  .services-header h2,
  .services-header p,
  .services-cta { text-align: center; }

  .split-layout {
    grid-template-columns: 1fr;
    gap: 60px;
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 52px;
  }
}

/* ─── Responsive — 768px ─── */
@media (max-width: 768px) {
  .section { padding: 72px 20px; }

  .navbar {
    padding: 10px 18px;
    border-radius: 24px;
    width: calc(100% - 32px);
    margin: 0 16px;
  }

  .nav-panel {
    position: absolute;
    top: calc(100% + 12px);
    right: 16px;
    left: 16px;
    width: auto;
    background: rgba(8, 12, 20, 0.98);
    backdrop-filter: blur(20px);
    border: 1px solid var(--line);
    border-radius: 20px;
    flex-direction: column;
    padding: 24px;
    gap: 8px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-12px);
    transition: 0.35s cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 1000;
    display: flex;
    box-shadow: var(--shadow);
  }

  .nav-panel.is-open {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
  }

  .nav-panel a {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-align: center;
    padding: 12px;
    border-radius: var(--radius-sm);
  }

  .nav-panel a:hover {
    color: var(--accent);
    background: rgba(0, 191, 166, 0.06);
  }

  .nav-button {
    background: rgba(0, 191, 166, 0.08) !important;
    color: var(--accent) !important;
    border-color: var(--line) !important;
    font-weight: 600 !important;
  }

  .menu-toggle { display: flex; }

  .hero { padding-top: 110px; gap: 40px; }

  .portrait-wrap { max-width: 280px; }

  .portrait-wrap::before,
  .portrait-wrap::after { display: none; }

  .skills-grid { grid-template-columns: repeat(3, 1fr); gap: 10px; }

  .skill-item { padding: 18px 10px; gap: 8px; }

  .skill-icon { font-size: 1.7rem; }

  .split-layout { grid-template-columns: 1fr; }

  .project-card { height: 420px; }

  .stats-main-row {
    flex-direction: column;
    gap: 0;
  }

  .stat-item {
    padding: 28px 0;
    text-align: center;
  }

  .stat-item + .stat-item {
    border-left: none;
    border-top: 1px solid var(--line-subtle);
  }

  .footer-links {
    flex-direction: column;
    gap: 36px;
    text-align: center;
  }

  .footer-bottom {
    flex-direction: column;
    gap: 12px;
    text-align: center;
    padding: 28px 0;
  }

  .social-links-footer { justify-content: center; }

  .contact-header h2 { text-align: center; }

  .contact-item {
    flex-direction: column;
    text-align: center;
    gap: 12px;
  }
}

/* ─── Responsive — 480px ─── */
@media (max-width: 480px) {
  .skills-grid { grid-template-columns: repeat(2, 1fr); }

  .project-card { height: 320px; }

  .project-overlay { padding: 24px 20px 20px; }

  .portrait-wrap { max-width: 240px; }
}