:root {
  --bg: #0a1018;
  --bg-elevated: #121a24;
  --bg-card: rgba(18, 28, 40, 0.72);
  --border: rgba(79, 209, 197, 0.18);
  --border-strong: rgba(79, 209, 197, 0.45);
  --text: #e8eef5;
  --text-muted: #8b9bb0;
  --accent: #4fd1c5;
  --accent-dim: #2a9b90;
  --gold: #d4a04a;
  --gold-deep: #8b3a4a;
  --glow: rgba(79, 209, 197, 0.35);
  --font-display: "Oxanium", sans-serif;
  --font-body: "Sora", sans-serif;
  --radius: 14px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  min-height: 100dvh;
  color: var(--text);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.6;
  background: var(--bg);
  overflow-x: hidden;
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  padding-left: env(safe-area-inset-left);
  padding-right: env(safe-area-inset-right);
}

/* —— Atmosphere —— */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(rgba(79, 209, 197, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(79, 209, 197, 0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 20%, #000 20%, transparent 75%);
  animation: gridDrift 40s linear infinite;
}

.bg-glow {
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(ellipse 60% 40% at 50% -10%, rgba(212, 160, 74, 0.18), transparent 55%),
    radial-gradient(ellipse 50% 45% at 85% 60%, rgba(79, 209, 197, 0.1), transparent 50%),
    radial-gradient(ellipse 40% 35% at 10% 80%, rgba(139, 58, 74, 0.12), transparent 50%);
  pointer-events: none;
}

#particles {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.55;
}

@keyframes gridDrift {
  from { background-position: 0 0; }
  to { background-position: 48px 48px; }
}

/* —— Hero —— */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: clamp(32px, 6vh, 48px) clamp(16px, 4vw, 24px) clamp(56px, 10vh, 80px);
  text-align: center;
}

.hero-inner {
  width: 100%;
  max-width: 640px;
}

.avatar-wrap {
  position: relative;
  width: clamp(140px, 38vw, 220px);
  height: clamp(140px, 38vw, 220px);
  margin: 0 auto 28px;
}

.avatar-ring {
  position: absolute;
  inset: -8px;
  border-radius: 50%;
  border: 2px solid transparent;
  background:
    linear-gradient(var(--bg), var(--bg)) padding-box,
    linear-gradient(135deg, var(--gold), var(--accent), var(--gold-deep)) border-box;
  animation: ringSpin 8s linear infinite;
  pointer-events: none;
}

.avatar-ring::after {
  content: "";
  position: absolute;
  inset: -16px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--glow), transparent 65%);
  opacity: 0.5;
  animation: pulseGlow 3.2s ease-in-out infinite;
}

.avatar-clip {
  position: relative;
  z-index: 1;
  width: 100%;
  height: 100%;
  border-radius: 50%;
  overflow: hidden;
  border: 4px solid #1a2a36;
  box-shadow: 0 0 0 1px rgba(79, 209, 197, 0.15);
}

.avatar {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
  transform-origin: center center;
  animation: avatarBreath 5.5s ease-in-out infinite;
}

@keyframes ringSpin {
  to { transform: rotate(360deg); }
}

@keyframes pulseGlow {
  0%, 100% { opacity: 0.35; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.06); }
}

/* Soft zoom + light shift — stays inside the circle via overflow:hidden */
@keyframes avatarBreath {
  0%, 100% {
    transform: scale(1) translate(0, 0);
    filter: brightness(1);
  }
  40% {
    transform: scale(1.08) translate(-1%, 1%);
    filter: brightness(1.06);
  }
  70% {
    transform: scale(1.05) translate(1%, -1%);
    filter: brightness(1.03);
  }
}

.brand {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(8px, 2vw, 12px);
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 7vw, 3.4rem);
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.15;
}

.brand-icon {
  width: clamp(24px, 7vw, 36px);
  height: clamp(24px, 7vw, 36px);
}

.brand > .brand-icon {
  animation: bob 3.5s ease-in-out infinite;
  filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.4));
}

.brand-icon:last-child {
  animation-delay: 0.4s;
}

@keyframes bob {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-6px) rotate(4deg); }
}

.gradient-text {
  background: linear-gradient(120deg, var(--gold) 10%, #e8c078 40%, #c45a6a 70%, var(--accent) 100%);
  background-size: 200% auto;
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: shimmer 6s ease infinite;
}

@keyframes shimmer {
  0%, 100% { background-position: 0% center; }
  50% { background-position: 100% center; }
}

.name {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.tagline {
  margin: 12px auto 28px;
  max-width: 92vw;
  min-height: 1.6em;
  font-size: clamp(0.9rem, 3.4vw, 1.05rem);
  color: var(--accent);
  font-weight: 500;
}

.tagline .cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  margin-left: 2px;
  background: var(--accent);
  vertical-align: text-bottom;
  animation: blink 0.9s step-end infinite;
}

@keyframes blink {
  50% { opacity: 0; }
}

.socials {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.social-link {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  min-width: 44px;
  min-height: 44px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  backdrop-filter: blur(8px);
  -webkit-tap-highlight-color: transparent;
  transition: transform 0.35s var(--ease), border-color 0.25s, box-shadow 0.35s, background 0.25s;
}

.social-link img {
  width: 22px;
  height: 22px;
  filter: brightness(0) invert(0.92);
  transition: filter 0.25s;
}

.social-link:hover {
  transform: translateY(-4px) scale(1.06);
  border-color: var(--border-strong);
  box-shadow: 0 8px 28px var(--glow);
  background: rgba(79, 209, 197, 0.12);
}

.social-link:hover img {
  filter: brightness(0) saturate(100%) invert(78%) sepia(28%) saturate(540%) hue-rotate(121deg);
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  width: 22px;
  height: 34px;
  border: 2px solid rgba(79, 209, 197, 0.4);
  border-radius: 12px;
  opacity: 0.7;
}

.scroll-hint span {
  display: block;
  width: 3px;
  height: 8px;
  margin: 6px auto 0;
  border-radius: 2px;
  background: var(--accent);
  animation: scrollDot 1.6s ease-in-out infinite;
}

@keyframes scrollDot {
  0% { opacity: 1; transform: translateY(0); }
  100% { opacity: 0; transform: translateY(12px); }
}

/* —— Sections —— */
.section {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
  padding: clamp(48px, 8vw, 72px) 0 clamp(16px, 3vw, 24px);
}

.section-title {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 5vw, 2.35rem);
  font-weight: 700;
  text-align: center;
  letter-spacing: 0.02em;
}

.section-lead {
  margin: 0 auto clamp(24px, 5vw, 40px);
  max-width: 480px;
  padding: 0 4px;
  text-align: center;
  color: var(--text-muted);
  font-size: clamp(0.88rem, 2.8vw, 0.98rem);
}

/* —— About —— */
.about-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(12px, 2vw, 18px);
}

.about-card {
  padding: 22px 20px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: transform 0.4s var(--ease), border-color 0.3s, box-shadow 0.4s;
}

.about-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-strong);
  box-shadow: 0 16px 40px rgba(0, 0, 0, 0.35), 0 0 0 1px rgba(79, 209, 197, 0.08);
}

.about-mark {
  display: inline-grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 12px;
  border-radius: 12px;
  color: var(--bg);
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  box-shadow: 0 4px 14px var(--glow);
  transition: transform 0.35s var(--ease), box-shadow 0.35s;
}

.about-mark svg {
  width: 22px;
  height: 22px;
}

.about-card:hover .about-mark {
  transform: scale(1.08) rotate(-3deg);
  box-shadow: 0 6px 20px var(--glow);
}

.about-card h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--accent);
}

.about-card p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.55;
}

/* —— Skills —— */
.skills-layout {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(18px, 3vw, 28px);
}

.skills-block h3 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: clamp(1.05rem, 2.5vw, 1.2rem);
  font-weight: 600;
  text-align: center;
  color: var(--text);
}

.skills-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.skill-item {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
  padding: 12px 14px;
  font-size: clamp(0.82rem, 2.2vw, 0.92rem);
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: 10px;
  -webkit-tap-highlight-color: transparent;
  overflow-wrap: anywhere;
  transition: transform 0.3s var(--ease), background 0.25s, border-color 0.25s, box-shadow 0.3s;
}

.skill-item img {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  object-fit: contain;
}

.skill-item:hover {
  transform: translateY(-3px);
  background: rgba(79, 209, 197, 0.08);
  border-color: var(--border);
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
}

.skill-badge {
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  border-radius: 6px;
  font-family: var(--font-display);
  font-size: 0.65rem;
  font-weight: 700;
  color: #0a1018;
}

.skill-badge.js { background: #f7df1e; }
.skill-badge.ts { background: #3178c6; color: #fff; }
.skill-badge.zen { background: #6b4fbb; color: #fff; }

/* —— Work projects —— */
.projects-container {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 24px;
}

.project-box {
  width: min(340px, 100%);
  padding: 28px 24px;
  text-align: center;
  background: linear-gradient(160deg, rgba(28, 42, 56, 0.9), rgba(14, 20, 30, 0.95));
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  transition: transform 0.45s var(--ease), box-shadow 0.45s;
}

.project-box:hover {
  transform: translateY(-8px) scale(1.02);
  box-shadow: 0 20px 50px rgba(79, 209, 197, 0.18);
}

.project-logo {
  display: grid;
  place-items: center;
  width: 96px;
  height: 96px;
  margin: 0 auto 16px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.project-logo img {
  max-width: 80%;
  max-height: 80%;
  object-fit: contain;
}

.project-box h3 {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
}

.project-years {
  margin: 0 0 16px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.work-list {
  margin: 0;
  padding: 0;
  list-style: none;
  text-align: left;
}

.work-list li {
  position: relative;
  padding: 8px 0 8px 18px;
  font-size: 0.95rem;
  color: var(--text-muted);
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  overflow-wrap: anywhere;
}

.work-list li:last-child {
  border-bottom: none;
}

.work-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 6px;
  height: 6px;
  border-radius: 1px;
  background: var(--accent);
  transform: translateY(-50%) rotate(45deg);
}

/* —— Portfolio —— */
.project-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 8px;
  width: fit-content;
  max-width: 100%;
  margin: 0 auto 28px;
  padding: 8px;
  background: var(--bg-elevated);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
}

.tab-button {
  padding: 10px 20px;
  border: none;
  border-radius: 8px;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.25s, color 0.25s, transform 0.25s;
}

.tab-button:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.tab-button.active {
  color: #0a1018;
  background: linear-gradient(135deg, var(--accent), var(--accent-dim));
  box-shadow: 0 4px 16px var(--glow);
}

.projects {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(14px, 2.5vw, 20px);
}

.project {
  display: none;
  opacity: 0;
  transform: translateY(12px) scale(0.98);
  padding: 0 0 20px;
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease), border-color 0.3s, box-shadow 0.4s;
}

.project.visible {
  display: block;
  opacity: 1;
  transform: translateY(0) scale(1);
}

.project.visible:hover {
  border-color: var(--border);
  box-shadow: 0 14px 36px rgba(0, 0, 0, 0.35);
  transform: translateY(-4px);
}

.project-thumb {
  display: grid;
  place-items: center;
  height: 140px;
  margin-bottom: 16px;
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: rgba(255, 255, 255, 0.85);
}

.project-thumb--dev {
  background:
    linear-gradient(135deg, rgba(79, 209, 197, 0.35), rgba(20, 40, 50, 0.9)),
    repeating-linear-gradient(-45deg, transparent, transparent 8px, rgba(255, 255, 255, 0.03) 8px, rgba(255, 255, 255, 0.03) 16px);
}

.project-thumb--plugin {
  background:
    linear-gradient(135deg, rgba(96, 165, 250, 0.4), rgba(18, 28, 48, 0.92)),
    repeating-linear-gradient(30deg, transparent, transparent 8px, rgba(255, 255, 255, 0.03) 8px, rgba(255, 255, 255, 0.03) 16px);
}

.project-thumb--pack {
  background:
    linear-gradient(135deg, rgba(212, 160, 74, 0.4), rgba(40, 28, 20, 0.9)),
    repeating-linear-gradient(45deg, transparent, transparent 8px, rgba(255, 255, 255, 0.03) 8px, rgba(255, 255, 255, 0.03) 16px);
}

.project-thumb--design {
  background:
    linear-gradient(135deg, rgba(196, 90, 106, 0.4), rgba(30, 18, 28, 0.9)),
    repeating-linear-gradient(90deg, transparent, transparent 10px, rgba(255, 255, 255, 0.03) 10px, rgba(255, 255, 255, 0.03) 20px);
}

.project h3 {
  margin: 0 16px 8px;
  font-family: var(--font-display);
  font-size: 1.15rem;
}

.project p {
  margin: 0 16px 12px;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.project .meta {
  display: inline-block;
  margin: 0 16px;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(79, 209, 197, 0.1);
  border-radius: 6px;
}

/* —— Reveal —— */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}

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

.hero .reveal.is-visible {
  transition-delay: 0.1s;
}

/* —— Footer —— */
.site-footer {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 64px;
  padding: 28px 20px 40px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  color: var(--text-muted);
  font-size: 0.9rem;
}

.back-top {
  display: grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  color: var(--accent);
  text-decoration: none;
  border: 1px solid var(--border);
  transition: background 0.25s, transform 0.25s;
}

.back-top:hover {
  background: rgba(79, 209, 197, 0.12);
  transform: translateY(-2px);
}

/* —— Responsive: below FHD / laptop —— */
@media (max-width: 1600px) {
  .section {
    width: min(1040px, calc(100% - 40px));
  }
}

@media (max-width: 1200px) {
  .section {
    width: calc(100% - 40px);
  }

  .about-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .skills-layout {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .skills-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    max-width: 720px;
    margin: 0 auto;
  }

  .projects {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .projects .project:last-child:nth-child(odd) {
    grid-column: 1 / -1;
    max-width: 420px;
    justify-self: center;
    width: 100%;
  }
}

@media (max-width: 900px) {
  .skills-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .project-box {
    width: min(100%, 400px);
  }

  .bg-grid {
    background-size: 36px 36px;
    animation: none;
  }
}

@media (max-width: 700px) {
  .hero {
    min-height: auto;
    padding-top: max(40px, env(safe-area-inset-top));
    padding-bottom: 48px;
  }

  .avatar-wrap {
    width: min(160px, 42vw);
    height: min(160px, 42vw);
    margin-bottom: 20px;
  }

  .avatar-ring::after {
    inset: -10px;
  }

  .name {
    font-size: 1rem;
    letter-spacing: 0.06em;
  }

  .tagline {
    margin-bottom: 22px;
    min-height: 2.8em;
  }

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

  .projects .project:last-child:nth-child(odd) {
    grid-column: auto;
    max-width: none;
  }

  .about-card {
    padding: 18px 16px;
  }

  .about-card h3 {
    font-size: 1rem;
  }

  .about-card p {
    font-size: 0.86rem;
  }

  .skills-grid {
    grid-template-columns: 1fr 1fr;
    max-width: none;
  }

  .project-tabs {
    width: 100%;
    gap: 6px;
    padding: 6px;
  }

  .tab-button {
    flex: 1 1 calc(50% - 6px);
    min-height: 44px;
    padding: 10px 12px;
    font-size: 0.88rem;
  }

  .project-thumb {
    height: 120px;
    font-size: 1.2rem;
  }

  .project-box {
    width: 100%;
    padding: 22px 18px;
  }

  .work-list li {
    font-size: 0.9rem;
  }

  .scroll-hint {
    display: none;
  }

  .site-footer {
    margin-top: 40px;
    padding: 24px 16px max(32px, env(safe-area-inset-bottom));
  }

  /* softer motion on phones */
  .about-card:hover,
  .project-box:hover,
  .project.visible:hover {
    transform: none;
  }

  .about-card:hover .about-mark {
    transform: none;
  }

  .social-link:hover {
    transform: none;
  }
}

@media (max-width: 420px) {
  .section {
    width: calc(100% - 24px);
  }

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

  .skill-item {
    padding: 14px 16px;
    font-size: 0.95rem;
  }

  .social-link {
    width: 46px;
    height: 46px;
  }

  .tab-button {
    flex: 1 1 calc(50% - 6px);
    font-size: 0.82rem;
    padding: 10px 8px;
  }

  .brand {
    font-size: 1.7rem;
  }
}

/* Touch devices: avoid sticky hover */
@media (hover: none) {
  .about-card:hover,
  .skill-item:hover,
  .project-box:hover,
  .project.visible:hover,
  .social-link:hover {
    transform: none;
    box-shadow: none;
  }

  .about-card:hover .about-mark {
    transform: none;
  }

  .skill-item:active,
  .social-link:active,
  .tab-button:active {
    background: rgba(79, 209, 197, 0.1);
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}