:root {
  --bg: #0b1120;
  --bg-soft: #111827;
  --bg-card: #151f32;
  --bg-card-hover: #1a2740;
  --text: #f1f5f9;
  --muted: #94a3b8;
  --line: rgba(148, 163, 184, 0.15);
  --accent: #38bdf8;
  --accent-2: #818cf8;
  --accent-glow: rgba(56, 189, 248, 0.25);
  --success: #34d399;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
  --nav-h: 72px;
  --max: 1100px;
  --font: "Inter", system-ui, sans-serif;
  --font-display: "Space Grotesk", system-ui, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--nav-h) + 20px);
}

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

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 1000;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: #0b1120;
  font-weight: 600;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  transform: translateY(calc(-100% - 2rem));
  transition: transform 0.2s ease;
}

.skip-link:focus,
.skip-link:focus-visible {
  transform: translateY(0);
  outline: 3px solid var(--text);
  outline-offset: 3px;
}

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

address {
  font-style: normal;
}

.section--soft {
  background: var(--bg-soft);
}

.container {
  width: min(var(--max), calc(100% - 2rem));
  margin-inline: auto;
}

/* Background decoration */
.bg-glow {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: -1;
  background:
    radial-gradient(ellipse 600px 400px at 10% -5%, rgba(56, 189, 248, 0.12), transparent),
    radial-gradient(ellipse 500px 350px at 90% 20%, rgba(129, 140, 248, 0.1), transparent),
    radial-gradient(ellipse 400px 300px at 50% 100%, rgba(56, 189, 248, 0.06), transparent);
}

/* Navigation */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-h);
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background 0.3s, border-color 0.3s, backdrop-filter 0.3s;
}

.nav.scrolled {
  background: rgba(11, 17, 32, 0.85);
  backdrop-filter: blur(16px);
  border-color: var(--line);
}

.nav-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-links li {
  list-style: none;
}

.nav-links a {
  padding: 0.45rem 0.85rem;
  font-size: 0.875rem;
  color: var(--muted);
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--line);
  color: var(--text);
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 1.25rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.35rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

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

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1120;
  box-shadow: 0 8px 24px var(--accent-glow);
}

.btn-primary:hover { box-shadow: 0 12px 32px var(--accent-glow); }

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--line);
}

.btn-outline:hover {
  border-color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.25);
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
}

.hero-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px var(--success);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.2rem, 5vw, 3.5rem);
  line-height: 1.1;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.hero h1 .gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-role {
  font-size: 1.15rem;
  color: var(--muted);
  margin-bottom: 1.25rem;
  min-height: 1.6em;
}

.hero-desc {
  color: var(--muted);
  max-width: 540px;
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 2rem;
}

.stat dt {
  font-size: 0.85rem;
  color: var(--muted);
  order: 2;
}

.stat dd {
  font-family: var(--font-display);
  font-size: 1.75rem;
  color: var(--accent);
  line-height: 1.2;
  order: 1;
  margin-bottom: 0.15rem;
}

.stat {
  display: flex;
  flex-direction: column;
}

.profile-figure {
  margin: 0 0 1.25rem;
  text-align: center;
}

.profile-photo-ring {
  display: inline-block;
  padding: 4px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 12px 30px rgba(0, 0, 0, 0.4);
  margin-bottom: 1rem;
}

.profile-photo {
  display: block;
  width: 150px;
  height: 150px;
  border-radius: 50%;
  object-fit: cover;
  border: 4px solid var(--bg-card);
}

.profile-figure .profile-name {
  text-align: center;
}

.profile-figure .location {
  text-align: center;
}

.profile-name {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.hero-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}

.hero-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.profile-icon {
  width: 88px;
  height: 88px;
  border-radius: 20px;
  background: linear-gradient(135deg, rgba(56, 189, 248, 0.2), rgba(129, 140, 248, 0.2));
  border: 1px solid var(--line);
  display: grid;
  place-items: center;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 1.25rem;
}

.hero-card .location {
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.9rem;
  color: var(--muted);
  transition: color 0.2s;
}

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

.contact-item svg {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  opacity: 0.7;
}

/* Sections */
.section {
  padding: 5rem 0;
}

.section-header {
  margin-bottom: 2.5rem;
}

.section-label {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  letter-spacing: -0.02em;
}

.section-header p {
  color: var(--muted);
  margin-top: 0.5rem;
  max-width: 560px;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.about-text p {
  color: var(--muted);
  margin-bottom: 1rem;
}

.info-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.info-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 1rem 1.15rem;
}

.info-card dt {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 0.25rem;
}

.info-card dd {
  font-weight: 600;
  font-size: 0.95rem;
}

/* Skills */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1.25rem;
}

.skill-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem;
  transition: border-color 0.25s, background 0.25s, transform 0.25s;
}

.skill-card:hover {
  border-color: rgba(56, 189, 248, 0.35);
  background: var(--bg-card-hover);
  transform: translateY(-3px);
}

.skill-card h3 {
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.85rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tag {
  padding: 0.3rem 0.65rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
  border-radius: 6px;
  font-size: 0.8rem;
  color: var(--muted);
}

/* Timeline */
.timeline {
  position: relative;
  padding-left: 2rem;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent-2), transparent);
}

.timeline-item {
  position: relative;
  padding-bottom: 2rem;
}

.timeline-item:last-child { padding-bottom: 0; }

.timeline-item::before {
  content: "";
  position: absolute;
  left: -2rem;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  transition: border-color 0.25s;
}

.timeline-card:hover { border-color: rgba(56, 189, 248, 0.3); }

.timeline-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.35rem;
}

.timeline-meta h3 {
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.timeline-date {
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
  white-space: nowrap;
}

.timeline-role {
  color: var(--muted);
  font-size: 0.95rem;
  margin-bottom: 0.5rem;
}

.timeline-location {
  font-size: 0.8rem;
  color: var(--muted);
  opacity: 0.7;
}

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.25rem;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem;
  transition: border-color 0.25s, transform 0.25s;
}

.project-card:hover {
  border-color: rgba(129, 140, 248, 0.35);
  transform: translateY(-4px);
}

.project-icon {
  width: 42px;
  height: 42px;
  border-radius: 10px;
  background: rgba(129, 140, 248, 0.15);
  display: grid;
  place-items: center;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}

.project-card h3 {
  font-size: 1rem;
  margin-bottom: 0.4rem;
}

.project-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.5;
}

/* Tutorials */
.tutorials-grid {
  display: grid;
  gap: 1.25rem;
}

.home-tutorial-list {
  display: none;
}

.tutorial-card {
  display: grid;
  grid-template-columns: 180px 1fr;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.tutorial-card:hover {
  border-color: rgba(56, 189, 248, 0.35);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.tutorial-visual {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 30% 20%, rgba(56, 189, 248, 0.18), transparent 60%),
    radial-gradient(circle at 80% 90%, rgba(129, 140, 248, 0.18), transparent 60%),
    var(--bg-soft);
  border-right: 1px solid var(--line);
}

.tutorial-icon {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  background: rgba(56, 189, 248, 0.12);
  border: 1px solid rgba(56, 189, 248, 0.25);
  display: grid;
  place-items: center;
  font-size: 1.9rem;
}

.tutorial-lang {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
}

.tutorial-body {
  padding: 1.5rem 1.65rem;
  display: flex;
  flex-direction: column;
}

.tutorial-body h2,
.tutorial-body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.tutorial-body > p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 1rem;
}

.tutorial-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.35rem;
}

.tutorial-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  margin-top: auto;
}

.tutorial-actions .btn {
  padding: 0.6rem 1.1rem;
  font-size: 0.85rem;
}

.tutorials-cta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  padding: 2rem;
  background:
    radial-gradient(circle at 10% 10%, rgba(56, 189, 248, 0.14), transparent 45%),
    radial-gradient(circle at 90% 90%, rgba(129, 140, 248, 0.14), transparent 45%),
    var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
}

.tutorials-cta h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  margin-bottom: 0.5rem;
}

.tutorials-cta p {
  color: var(--muted);
  line-height: 1.65;
  max-width: 660px;
}

.tutorials-cta .btn {
  flex: 0 0 auto;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.04);
  color: var(--muted);
  border: 1px solid var(--line);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--accent);
}

@media (max-width: 640px) {
  .tutorials-cta {
    align-items: stretch;
    flex-direction: column;
    padding: 1.5rem;
  }

  .tutorials-cta .btn {
    justify-content: center;
  }

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

  .tutorial-visual {
    flex-direction: row;
    justify-content: flex-start;
    gap: 1rem;
    padding: 1.1rem 1.5rem;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .tutorial-icon {
    width: 48px;
    height: 48px;
    font-size: 1.4rem;
  }

  .tutorial-actions .btn {
    flex: 1 1 auto;
    justify-content: center;
  }
}

/* Free Apps */
.apps-grid {
  display: grid;
  gap: 1.25rem;
}

.app-card {
  display: grid;
  grid-template-columns: 200px 1fr;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.app-card:hover {
  border-color: rgba(56, 189, 248, 0.35);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.app-card__visual {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.85rem;
  padding: 1.5rem;
  background:
    radial-gradient(circle at 30% 20%, rgba(56, 189, 248, 0.16), transparent 60%),
    radial-gradient(circle at 80% 90%, rgba(129, 140, 248, 0.14), transparent 60%),
    var(--bg-soft);
  border-right: 1px solid var(--line);
}

.app-card--lisek .app-card__visual {
  background:
    radial-gradient(circle at 30% 20%, rgba(0, 201, 177, 0.22), transparent 60%),
    radial-gradient(circle at 80% 90%, rgba(27, 43, 68, 0.35), transparent 60%),
    var(--bg-soft);
}

.app-card--workflow .app-card__visual {
  background: linear-gradient(145deg, rgba(20, 184, 166, 0.16), rgba(56, 189, 248, 0.05));
}

.app-card--gityar .app-card__visual {
  background: linear-gradient(145deg, rgba(240, 80, 50, 0.16), rgba(129, 140, 248, 0.05));
}

.app-card--phpmvc .app-card__visual {
  background: linear-gradient(145deg, rgba(119, 123, 180, 0.2), rgba(56, 189, 248, 0.05));
}

.app-card--workflow .app-card__logo { color: #5eead4; }
.app-card--gityar .app-card__logo { color: #fb8068; }
.app-card--phpmvc .app-card__logo { color: #a5b4fc; font-size: 1.05rem; }

.app-card__logo {
  width: 72px;
  height: 72px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  overflow: hidden;
  flex-shrink: 0;
}

.app-card__logo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.app-card__logo--text {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  color: #7dd3fc;
  background: rgba(56, 189, 248, 0.1);
  border: 1px solid rgba(56, 189, 248, 0.28);
}

.app-card__platform {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--accent);
  background: rgba(56, 189, 248, 0.08);
  border: 1px solid rgba(56, 189, 248, 0.28);
  border-radius: 999px;
  padding: 0.25rem 0.75rem;
  text-align: center;
  line-height: 1.35;
}

.app-card__body {
  padding: 1.5rem 1.65rem;
  display: flex;
  flex-direction: column;
}

.app-card__head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.5rem;
}

.app-card__head h3 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}

.app-card__badge {
  flex-shrink: 0;
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--success);
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.28);
  border-radius: 999px;
  padding: 0.22rem 0.65rem;
}

.app-card__desc {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.65;
  margin-bottom: 1rem;
}

.app-card__features {
  list-style: none;
  display: grid;
  gap: 0.35rem;
  margin-bottom: 1rem;
}

.app-card__features li {
  position: relative;
  font-size: 0.84rem;
  color: var(--muted);
  padding-inline-start: 1.1rem;
  line-height: 1.45;
}

.app-card__features li::before {
  content: "›";
  position: absolute;
  inset-inline-start: 0;
  color: var(--accent);
  font-weight: 700;
}

.app-card__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.25rem;
}

.app-card__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
  margin-top: auto;
}

.app-card__actions .btn {
  padding: 0.6rem 1.1rem;
  font-size: 0.85rem;
}

.app-card__cmd {
  flex: 1 1 200px;
  font-family: ui-monospace, "Cascadia Code", "Consolas", monospace;
  font-size: 0.72rem;
  color: var(--muted);
  background: rgba(0, 0, 0, 0.22);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 0.55rem 0.75rem;
  overflow-x: auto;
  white-space: nowrap;
}

.app-card__meta {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--muted);
}

.page-apps {
  padding-top: calc(var(--nav-h) + 2rem);
}

.page-tutorials {
  padding-top: calc(var(--nav-h) + 2rem);
}

.page-apps .page-back,
.page-tutorials .page-back {
  display: inline-flex;
  margin-bottom: 1.25rem;
}

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

  .app-card__visual {
    flex-direction: row;
    justify-content: flex-start;
    gap: 1rem;
    padding: 1.1rem 1.5rem;
    border-right: none;
    border-bottom: 1px solid var(--line);
  }

  .app-card__logo {
    width: 56px;
    height: 56px;
    border-radius: 14px;
  }

  .app-card__actions .btn,
  .app-card__cmd {
    flex: 1 1 100%;
    justify-content: center;
    text-align: center;
  }
}

[dir="rtl"] .app-card__visual {
  border-right: none;
  border-left: 1px solid var(--line);
}

@media (max-width: 640px) {
  [dir="rtl"] .app-card__visual {
    border-left: none;
  }
}

/* Tutorial pages — layout hooks (styles in css/tutorial.css) */

/* Subpages */
.page-hero {
  padding: calc(var(--nav-h) + 3.5rem) 0 1.5rem;
  text-align: center;
}

.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(1.85rem, 4vw, 2.75rem);
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.page-hero .gradient {
  background: linear-gradient(135deg, var(--accent), var(--success));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.page-hero > p {
  color: var(--muted);
  max-width: 42rem;
  margin-inline: auto;
  font-size: 1.05rem;
  line-height: 1.7;
}

.page-back {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 1.5rem;
  transition: color 0.2s;
}

.page-back:hover {
  color: var(--accent);
}

.lang-switch-page {
  margin-top: 1.25rem;
}

.lang-switch-page a {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.45rem 1rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  border: 1px solid var(--line);
  border-radius: 999px;
  transition: background 0.2s, border-color 0.2s;
}

.lang-switch-page a:hover {
  background: rgba(56, 189, 248, 0.08);
  border-color: rgba(56, 189, 248, 0.35);
}

.page-main {
  padding-bottom: 4rem;
}

.nav-links a.nav-current {
  color: var(--text);
  background: rgba(255, 255, 255, 0.05);
}

/* Education & Awards */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.edu-item, .award-item {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.35rem;
  margin-bottom: 1rem;
}

.edu-item:last-child, .award-item:last-child { margin-bottom: 0; }

.edu-item h3, .award-item h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.edu-item p, .award-item p {
  color: var(--muted);
  font-size: 0.9rem;
}

.edu-item .year {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--accent);
  font-weight: 600;
}

.award-item {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}

.award-badge {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(52, 211, 153, 0.12);
  display: grid;
  place-items: center;
  font-size: 1.25rem;
}

.awards-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Contact */
.contact-section {
  background: var(--bg-soft);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: 1.5rem;
}

.contact-method {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s;
}

.contact-method:hover { border-color: rgba(56, 189, 248, 0.35); }

.contact-method-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: rgba(56, 189, 248, 0.1);
  display: grid;
  place-items: center;
  font-size: 1.1rem;
}

.contact-method .contact-label {
  display: block;
  font-size: 0.75rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.contact-method div > span:not(.contact-label) {
  font-weight: 600;
}

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.75rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group textarea { resize: vertical; min-height: 120px; }

.contact-method-icon--linkedin {
  background: rgba(10, 102, 194, 0.15);
  color: #60a5fa;
}

.contact-method-icon--github {
  background: rgba(255, 255, 255, 0.08);
  color: var(--text);
}

.footer-social {
  display: flex;
  justify-content: center;
  gap: 1.25rem;
  margin-bottom: 0.75rem;
}

.footer-social a {
  color: var(--muted);
  font-size: 0.9rem;
  transition: color 0.2s;
}

.footer-social a:hover { color: var(--accent); }

/* Footer */
.footer {
  padding: 2rem 0;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.footer a { color: var(--accent); }

/* Animations — visible by default; hidden only when JS is enabled */
.reveal {
  opacity: 1;
  transform: none;
}

html.js .reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

html.js .reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
/* App hub redesign */
.apps-hero {
  position: relative;
  min-height: 76vh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 4rem) 0 5rem;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.apps-hero::before {
  content: "";
  position: absolute;
  width: 620px;
  height: 620px;
  right: -260px;
  top: -140px;
  border: 1px solid rgba(56, 189, 248, 0.12);
  border-radius: 50%;
  box-shadow: 0 0 0 80px rgba(56, 189, 248, 0.025), 0 0 0 160px rgba(129, 140, 248, 0.018);
  pointer-events: none;
}

.apps-hero .page-back { display: inline-flex; margin-bottom: 3.5rem; }
.apps-hero__grid { display: grid; grid-template-columns: minmax(0, 1.45fr) minmax(260px, .55fr); gap: 5rem; align-items: end; }

.apps-hero__content h1 {
  max-width: 800px;
  margin: .8rem 0 1.4rem;
  font: 700 clamp(2.8rem, 6.7vw, 5.4rem)/1 var(--font-display);
  letter-spacing: -.055em;
}

.apps-hero__content h1 span {
  background: linear-gradient(120deg, var(--accent), #a5b4fc 75%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.apps-hero__content > p:not(.section-label) { max-width: 690px; color: var(--muted); font-size: 1.05rem; }
.apps-hero__actions { display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 2rem; }
.apps-hero__stats { padding-left: 2rem; border-left: 1px solid var(--line); }
.apps-hero__stats div { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.apps-hero__stats dt { color: var(--muted); font-size: .7rem; font-weight: 600; letter-spacing: .12em; text-transform: uppercase; }
.apps-hero__stats dd { margin-top: .15rem; font: 600 1.2rem var(--font-display); }

.page-apps { padding-top: 6rem; background: var(--bg-soft); }
.apps-section-head { display: flex; align-items: end; justify-content: space-between; gap: 3rem; margin-bottom: 2.5rem; }
.apps-section-head h2 { font: 600 clamp(1.8rem, 4vw, 3rem) var(--font-display); letter-spacing: -.035em; }
.apps-section-head > p { max-width: 430px; color: var(--muted); }

.page-apps .apps-grid { grid-template-columns: repeat(12, minmax(0, 1fr)); gap: 1.25rem; }
.page-apps .app-card { grid-column: span 4; grid-template-columns: 1fr; position: relative; min-width: 0; }
.page-apps .app-card--spotlight { grid-column: span 6; }
.page-apps .app-card__visual {
  min-height: 190px;
  position: relative;
  flex-direction: column;
  justify-content: center;
  border-right: 0;
  border-bottom: 1px solid var(--line);
}

.page-apps .app-card--spotlight .app-card__visual { min-height: 245px; }
.page-apps .app-card__visual::after {
  content: "";
  position: absolute;
  inset: 1rem;
  border: 1px solid rgba(255, 255, 255, .055);
  border-radius: 10px;
  pointer-events: none;
}

.page-apps .app-card__logo { width: 76px; height: 76px; border-radius: 20px; box-shadow: 0 18px 40px rgba(0, 0, 0, .25); }
.page-apps .app-card--spotlight .app-card__logo { width: 88px; height: 88px; }
.page-apps .app-card__platform { border: 0; background: transparent; padding: 0; letter-spacing: .1em; }
.page-apps .app-card__body { padding: 1.6rem; }
.page-apps .app-card--spotlight .app-card__body { padding: 2rem; }
.page-apps .app-card__head h3 { font-size: 1.4rem; }
.page-apps .app-card--spotlight .app-card__head h3 { font-size: 1.75rem; }
.page-apps .app-card__features { padding-top: 1rem; border-top: 1px solid var(--line); }
.page-apps .app-card__tags { margin-top: .15rem; }
.page-apps .app-card__actions { padding-top: .25rem; }
.page-apps .app-card__actions .btn { min-height: 42px; }

.app-card__command {
  flex: 1 1 100%;
  min-width: 0;
  margin-top: .3rem;
  padding: .75rem .9rem;
  background: rgba(5, 10, 20, .65);
  border: 1px solid rgba(148, 163, 184, .18);
  border-radius: 10px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .035);
}

.app-card__command span {
  display: block;
  margin-bottom: .35rem;
  color: var(--muted);
  font-size: .62rem;
  font-weight: 700;
  letter-spacing: .11em;
  text-transform: uppercase;
}

.app-card__command code {
  display: block;
  overflow-x: auto;
  padding-bottom: .1rem;
  color: #bae6fd;
  font: 500 .76rem/1.6 ui-monospace, "Cascadia Code", "Consolas", monospace;
  white-space: nowrap;
  scrollbar-width: thin;
}

.app-card__command code::before {
  content: "$";
  margin-right: .65rem;
  color: var(--success);
  user-select: none;
}

@media (max-width: 1020px) {
  .apps-hero__grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .apps-hero__stats { padding: 1rem 0 0; border-left: 0; border-top: 1px solid var(--line); display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .page-apps .app-card, .page-apps .app-card--spotlight { grid-column: span 6; }
}

@media (max-width: 700px) {
  .apps-hero { min-height: auto; padding: calc(var(--nav-h) + 2.5rem) 0 3.5rem; }
  .apps-hero .page-back { margin-bottom: 2.5rem; }
  .apps-hero__content h1 { font-size: clamp(2.5rem, 13vw, 4rem); }
  .apps-section-head { display: block; }
  .apps-section-head > p { margin-top: .8rem; }
  .page-apps .apps-grid { grid-template-columns: 1fr; }
  .page-apps .app-card, .page-apps .app-card--spotlight { grid-column: auto; }
  .page-apps .app-card__visual, .page-apps .app-card--spotlight .app-card__visual { min-height: 180px; flex-direction: column; justify-content: center; }
  .page-apps .app-card__actions .btn { flex: 1 1 auto; }
}

@media (max-width: 460px) {
  .apps-hero__stats { grid-template-columns: 1fr; gap: 0; }
  .apps-hero__actions .btn { width: 100%; justify-content: center; }
  .page-apps .app-card__head { display: block; }
  .page-apps .app-card__badge { display: inline-block; margin-top: .55rem; }
  .page-apps .app-card__actions .btn, .app-card__command { flex-basis: 100%; }
}

/* Portfolio page */
.portfolio-hero {
  padding: calc(var(--nav-h) + 5rem) 0 5rem;
  min-height: 72vh;
  display: flex;
  align-items: center;
}

.portfolio-hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(250px, 0.55fr);
  gap: 5rem;
  align-items: end;
}

.portfolio-hero__content h1 {
  max-width: 760px;
  margin: 1rem 0 1.25rem;
  font: 700 clamp(2.8rem, 7vw, 5.6rem)/0.98 var(--font-display);
  letter-spacing: -0.055em;
}

.portfolio-hero__content .gradient {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.portfolio-hero__lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.08rem;
  margin-bottom: 2rem;
}

.portfolio-summary {
  border-left: 1px solid var(--line);
  padding-left: 2rem;
}

.portfolio-summary div { padding: 1rem 0; border-bottom: 1px solid var(--line); }
.portfolio-summary dt { color: var(--muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; }
.portfolio-summary dd { font: 600 1.15rem var(--font-display); margin-top: 0.2rem; }
.section-header--left { text-align: left; margin-inline: 0; }

.portfolio-work { border-top: 1px solid var(--line); background: var(--bg-soft); }
.portfolio-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.25rem; }

.portfolio-card {
  overflow: hidden;
  background: var(--bg-card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  transition: transform 0.25s ease, border-color 0.25s ease;
}

.portfolio-card:hover { transform: translateY(-5px); border-color: rgba(56, 189, 248, 0.4); }
.portfolio-card--featured { grid-column: 1 / -1; display: grid; grid-template-columns: 0.9fr 1.1fr; }

.portfolio-card__visual {
  min-height: 210px;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  background-color: #101b2e;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.035) 1px, transparent 1px);
  background-size: 26px 26px;
}

.portfolio-card--featured .portfolio-card__visual { min-height: 330px; }
.portfolio-card__visual span { color: rgba(255,255,255,.55); font: 500 .78rem var(--font-display); letter-spacing: .12em; }
.portfolio-card__visual strong { color: rgba(255,255,255,.92); font: 700 clamp(1.4rem, 3vw, 2.4rem) var(--font-display); letter-spacing: -.04em; }
.portfolio-card__visual--banking { background-color: #10283a; }
.portfolio-card__visual--identity { background-color: #202044; }
.portfolio-card__visual--workflow { background-color: #142e2c; }
.portfolio-card__visual--signature { background-color: #34203b; }
.portfolio-card__visual--integration { background-color: #2d2818; }
.portfolio-card__visual--learning { background-color: #172b42; }
.portfolio-card__body { padding: 1.75rem; }
.portfolio-card--featured .portfolio-card__body { padding: clamp(2rem, 5vw, 3.5rem); display: flex; flex-direction: column; justify-content: center; }
.portfolio-card__eyebrow { margin-bottom: .6rem; color: var(--accent); font-size: .75rem; font-weight: 600; letter-spacing: .08em; text-transform: uppercase; }
.portfolio-card h3 { font: 600 1.35rem var(--font-display); margin-bottom: .75rem; }
.portfolio-card--featured h3 { font-size: clamp(1.6rem, 3vw, 2.2rem); }
.portfolio-card__body > p:not(.portfolio-card__eyebrow) { color: var(--muted); margin-bottom: 1.25rem; }
.portfolio-cta { border-top: 1px solid var(--line); }
.portfolio-cta__inner { display: flex; align-items: center; justify-content: space-between; gap: 2rem; padding: 2.5rem; border: 1px solid var(--line); border-radius: var(--radius); background: linear-gradient(135deg, rgba(56,189,248,.08), rgba(129,140,248,.08)); }
.portfolio-cta h2 { font: 600 clamp(1.6rem, 4vw, 2.5rem) var(--font-display); }

@media (max-width: 1020px) {
  .hero-grid,
  .about-grid,
  .two-col,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-card { order: -1; }

  .nav-links {
    position: fixed;
    top: var(--nav-h);
    left: 0;
    right: 0;
    background: rgba(11, 17, 32, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    padding: 1rem;
    transform: translateY(-120%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s, opacity 0.3s;
  }

  .nav-links li { width: 100%; }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a { width: 100%; text-align: center; padding: 0.75rem; }

  .nav-toggle { display: grid; place-items: center; }

  .portfolio-hero__grid { grid-template-columns: 1fr; gap: 2rem; }
  .portfolio-summary { border-left: 0; border-top: 1px solid var(--line); padding: 1rem 0 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
  .portfolio-card--featured { display: block; }
}

@media (max-width: 520px) {
  .logo { font-size: 0.82rem; }
  .info-cards { grid-template-columns: 1fr; }
  .hero-stats { gap: 1.25rem; }
  .section { padding: 3.5rem 0; }
  .portfolio-hero { padding: calc(var(--nav-h) + 3rem) 0 3rem; }
  .portfolio-summary, .portfolio-grid { grid-template-columns: 1fr; }
  .portfolio-card--featured { grid-column: auto; }
  .portfolio-card--featured .portfolio-card__visual { min-height: 220px; }
  .portfolio-cta__inner { align-items: flex-start; flex-direction: column; padding: 1.5rem; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal,
  html.js .reveal.visible {
    opacity: 1;
    transform: none;
    transition: none;
  }
}