/* === Portfolio site styles === */
:root {
  --bg: #0a0a0f;
  --surface: #13131a;
  --surface-2: color-mix(in srgb, #13131a 80%, #0a0a0f 20%);
  --text: #f5f5f7;
  --muted: #9b9ba8;
  --primary: #7c5cff;
  --accent: #22d3ee;
  --border: color-mix(in srgb, #f5f5f7 12%, transparent);
  --radius: 16px;
  --radius-sm: 8px;
  --container: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

.container {
  width: 100%;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 640px) { .container { padding: 0 16px; } }

/* ===== Header ===== */
.header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  padding: 14px 0;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .2s, padding .2s;
}
.header.scrolled { border-bottom-color: var(--border); padding: 10px 0; }
.header-inner {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
}
.logo {
  display: flex; align-items: center; gap: 10px;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: -0.01em;
}
.logo-mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: grid; place-items: center;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
}

.nav { display: flex; gap: 6px; align-items: center; }
.nav a {
  padding: 8px 14px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--muted);
  transition: color .15s, background .15s;
}
.nav a:hover { color: var(--text); background: color-mix(in srgb, var(--text) 6%, transparent); }

.header-actions { display: flex; gap: 8px; align-items: center; }
.lang-switch {
  display: inline-flex;
  background: color-mix(in srgb, var(--text) 6%, transparent);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 3px;
  font-size: 11.5px;
  font-weight: 600;
}
.lang-switch button {
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: background .15s, color .15s;
}
.lang-switch button.active {
  background: var(--text);
  color: var(--bg);
}

.btn-burger { display: none; width: 38px; height: 38px; border-radius: 10px;
  background: color-mix(in srgb, var(--text) 6%, transparent);
  font-size: 18px;
}

@media (max-width: 820px) {
  .nav { display: none; position: absolute; top: 100%; left: 0; right: 0;
         flex-direction: column; gap: 0;
         background: var(--surface); border-bottom: 1px solid var(--border);
         padding: 8px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px; border-radius: 10px; }
  .btn-burger { display: grid; place-items: center; }
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 140px 0 100px;
  overflow: hidden;
}
.hero-bg {
  position: absolute; inset: 0;
  pointer-events: none; z-index: 0;
}
.hero-bg.gradient::before {
  content: "";
  position: absolute;
  width: 700px; height: 700px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--primary) 35%, transparent) 0%, transparent 60%);
  top: -200px; left: 50%;
  transform: translateX(-50%);
  filter: blur(60px);
  animation: floatBlob 12s ease-in-out infinite;
}
.hero-bg.gradient::after {
  content: "";
  position: absolute;
  width: 500px; height: 500px;
  border-radius: 50%;
  background: radial-gradient(circle, color-mix(in srgb, var(--accent) 25%, transparent) 0%, transparent 60%);
  bottom: -150px; right: 10%;
  filter: blur(60px);
  animation: floatBlob 14s ease-in-out infinite reverse;
}
.hero-bg.grid {
  background-image:
    linear-gradient(color-mix(in srgb, var(--text) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--text) 6%, transparent) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(circle at 50% 30%, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(circle at 50% 30%, #000, transparent 70%);
}

@keyframes floatBlob {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(40px); }
}

.hero-inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 50px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-inner { grid-template-columns: 1fr; gap: 30px; }
}

.hero-pill {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary) 30%, transparent);
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 22px;
}
.hero-pill .dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px var(--primary);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%,100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero h1 {
  font-size: clamp(36px, 6vw, 68px);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -0.025em;
  margin-bottom: 18px;
}
.hero h1 .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p.lead {
  font-size: clamp(15px, 1.7vw, 18px);
  color: var(--muted);
  max-width: 540px;
  margin-bottom: 28px;
}
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  transition: transform .12s, box-shadow .15s, opacity .15s;
}
.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
}
.btn-primary:hover { box-shadow: 0 10px 30px color-mix(in srgb, var(--primary) 40%, transparent); }
.btn-primary:active { transform: translateY(1px); }
.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-outline:hover { background: color-mix(in srgb, var(--text) 6%, transparent); }

.hero-portrait {
  display: flex; justify-content: center;
}
.portrait-frame {
  width: 320px; height: 320px;
  border-radius: 50%;
  position: relative;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  padding: 4px;
}
.portrait-frame::before {
  content: "";
  position: absolute; inset: -20px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--primary), var(--accent), var(--primary));
  opacity: 0.2;
  filter: blur(40px);
  z-index: -1;
  animation: spin 14s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.portrait-inner {
  width: 100%; height: 100%;
  border-radius: 50%;
  background: var(--surface);
  display: grid; place-items: center;
  font-size: 90px;
  overflow: hidden;
  color: var(--muted);
}
.portrait-inner img { width: 100%; height: 100%; object-fit: cover; }
@media (max-width: 900px) { .portrait-frame { width: 240px; height: 240px; } }

/* ===== Sections ===== */
section { padding: 90px 0; position: relative; }
.section-head { margin-bottom: 50px; text-align: center; }
.section-eyebrow {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 10px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.02em;
}

/* ===== About ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 50px;
  align-items: center;
}
@media (max-width: 800px) {
  .about-grid { grid-template-columns: 1fr; }
}
.about-text { font-size: 16px; color: var(--muted); }
.about-text p { margin-bottom: 14px; }
.about-stats { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-top: 24px; }
.stat-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
}
.stat-card b {
  font-size: 28px; font-weight: 800;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
  margin-bottom: 4px;
}
.stat-card span { font-size: 13px; color: var(--muted); }

/* ===== Skills ===== */
.skills-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
}
.skill {
  padding: 10px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  transition: transform .15s, border-color .15s, color .15s;
}
.skill:hover {
  transform: translateY(-2px);
  border-color: var(--primary);
  color: var(--primary);
}

/* ===== Projects ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(330px, 1fr));
  gap: 22px;
}
.project {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex; flex-direction: column;
  transition: transform .2s, border-color .2s, box-shadow .2s;
  text-decoration: none;
  color: inherit;
}
.project:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--primary) 60%, var(--border));
  box-shadow: 0 20px 60px color-mix(in srgb, var(--primary) 12%, transparent);
}
.project-cover {
  aspect-ratio: 16/10;
  background: var(--surface-2);
  position: relative;
  overflow: hidden;
}
.project-cover img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform .4s;
}
.project:hover .project-cover img { transform: scale(1.05); }
.project-cover-empty {
  width: 100%; height: 100%;
  display: grid; place-items: center;
  color: var(--muted);
  font-size: 50px;
}
.project-body { padding: 22px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.project-title { font-size: 19px; font-weight: 700; letter-spacing: -0.01em; }
.project-desc { color: var(--muted); font-size: 14px; flex: 1; }
.project-tech { display: flex; flex-wrap: wrap; gap: 6px; }
.project-tech span {
  font-size: 11px;
  padding: 4px 10px;
  border-radius: 999px;
  background: color-mix(in srgb, var(--primary) 10%, transparent);
  color: var(--primary);
  font-weight: 600;
}
.project-link-row {
  display: flex; align-items: center; justify-content: space-between;
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
}
.arrow-icon {
  display: inline-grid; place-items: center;
  width: 28px; height: 28px;
  border-radius: 50%;
  background: color-mix(in srgb, var(--primary) 12%, transparent);
  transition: transform .2s;
}
.project:hover .arrow-icon { transform: translateX(4px); }

.empty-projects {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius);
}

/* ===== Contact ===== */
.contact {
  text-align: center;
}
.contact-text {
  font-size: 18px;
  color: var(--muted);
  max-width: 560px;
  margin: 0 auto 30px;
}
.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
  max-width: 800px;
  margin: 0 auto;
}
.contact-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  text-align: left;
  transition: border-color .15s, transform .12s;
}
.contact-card:hover {
  border-color: var(--primary);
  transform: translateY(-3px);
}
.contact-card-label {
  font-size: 12px;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 6px;
}
.contact-card-value {
  font-size: 15px;
  font-weight: 600;
  word-break: break-word;
}

.socials {
  display: flex; justify-content: center; gap: 12px;
  margin-top: 36px;
}
.social-icon {
  width: 44px; height: 44px;
  display: grid; place-items: center;
  border-radius: 12px;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform .15s, border-color .15s, color .15s;
}
.social-icon:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
}
.social-icon svg { width: 20px; height: 20px; }

/* ===== Footer ===== */
.footer {
  padding: 36px 0;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--muted);
  font-size: 13.5px;
}

/* ===== Project Page ===== */
.project-page { padding-top: 100px; }
.back-link {
  display: inline-flex; align-items: center; gap: 6px;
  color: var(--muted);
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 24px;
}
.back-link:hover { color: var(--primary); }

.project-hero h1 {
  font-size: clamp(32px, 5vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.project-meta {
  display: flex; gap: 18px; flex-wrap: wrap;
  font-size: 13px; color: var(--muted);
  margin-bottom: 22px;
}
.project-meta b { color: var(--text); margin-right: 6px; }

.project-actions { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 40px; }

.project-content {
  font-size: 16px;
  color: var(--muted);
  max-width: 760px;
  margin-bottom: 50px;
}
.project-content p { margin-bottom: 14px; }

.gallery {
  display: grid;
  gap: 18px;
  grid-template-columns: 1fr;
}
.gallery-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
}
.gallery-item img, .gallery-item video {
  width: 100%;
  display: block;
  cursor: zoom-in;
}
.gallery-item video { cursor: default; }
.gallery-caption {
  padding: 12px 18px;
  font-size: 13.5px;
  color: var(--muted);
  border-top: 1px solid var(--border);
}

@media (min-width: 720px) {
  .gallery {
    grid-template-columns: 1fr 1fr;
  }
  .gallery-item.wide { grid-column: 1 / -1; }
}

/* ===== Lightbox ===== */
.lightbox {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.92);
  display: none;
  z-index: 200;
  align-items: center;
  justify-content: center;
  padding: 30px;
  cursor: zoom-out;
}
.lightbox.open { display: flex; }
.lightbox img {
  max-width: 95%;
  max-height: 95vh;
  border-radius: 8px;
  object-fit: contain;
}
.lightbox-close {
  position: absolute; top: 20px; right: 20px;
  background: rgba(255,255,255,0.1);
  color: #fff;
  width: 42px; height: 42px;
  border-radius: 50%;
  font-size: 20px;
  display: grid; place-items: center;
  cursor: pointer;
}

/* ===== Reveal animations ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s, transform .6s;
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: color-mix(in srgb, var(--text) 14%, transparent); border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: color-mix(in srgb, var(--text) 22%, transparent); }