:root {
  --bg-hero: #0B1220;
  --ink: #111827;
  --accent: #2563EB;
  --bg: #F7F8FA;
  --success: #059669;
  --warn: #D97706;
  --danger: #DC2626;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 10px;
  --shadow-soft: 0 16px 42px rgba(12, 19, 35, 0.35);
  --shadow-hard: 0 22px 60px rgba(5, 8, 21, 0.45);
  --transition-snappy: 200ms ease;
  --step--1: clamp(0.85rem, 0.79rem + 0.25vw, 0.95rem);
  --step-0: clamp(1rem, 0.96rem + 0.35vw, 1.1rem);
  --step-1: clamp(1.2rem, 1.12rem + 0.6vw, 1.5rem);
  --step-2: clamp(1.5rem, 1.4rem + 0.9vw, 2rem);
  --step-3: clamp(1.9rem, 1.65rem + 1.4vw, 2.6rem);
  --step-4: clamp(2.4rem, 2rem + 1.9vw, 3.2rem);
}

html {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.5;
  scroll-behavior: smooth;
  background-color: #050915;
  color-scheme: dark light;
}

html[data-theme="dark"] {
  --color-background: #050915;
  --color-surface: rgba(11, 18, 32, 0.92);
  --color-surface-elevated: #111a2c;
  --color-border: rgba(148, 163, 184, 0.18);
  --color-text-primary: #f8fafc;
  --color-text-secondary: #d1d5db;
  --color-muted: #94a3b8;
  --shadow-soft: 0 18px 46px rgba(3, 7, 18, 0.45);
}

html[data-theme="light"] {
  --color-background: var(--bg);
  --color-surface: #ffffff;
  --color-surface-elevated: #ffffff;
  --color-border: rgba(15, 23, 42, 0.12);
  --color-text-primary: var(--ink);
  --color-text-secondary: #374151;
  --color-muted: #6b7280;
  --shadow-soft: 0 16px 44px rgba(15, 23, 42, 0.12);
}

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

body {
  margin: 0;
  min-height: 100vh;
  background: var(--color-background);
  color: var(--color-text-primary);
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-md);
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover,
a:focus-visible {
  text-decoration: underline;
}

strong {
  font-weight: 600;
}

.skip-link {
  position: absolute;
  top: -4rem;
  left: 1rem;
  background: var(--accent);
  color: #fff;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  z-index: 999;
  transition: top var(--transition-snappy);
}

.skip-link:focus {
  top: 1rem;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(12px);
  background: rgba(5, 8, 21, 0.78);
  border-bottom: 1px solid var(--color-border);
}

html[data-theme="light"] .site-header {
  background: rgba(255, 255, 255, 0.92);
}

.site-header__inner {
  max-width: min(1200px, 92vw);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1rem 0;
}

.site-logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-weight: 600;
  color: inherit;
}

.site-logo__mark {
  width: 2.4rem;
  height: 2.4rem;
  display: grid;
  place-items: center;
  font-weight: 700;
  background: var(--accent);
  color: #fff;
  border-radius: 14px;
  letter-spacing: 0.04em;
}

.site-nav {
  margin-left: auto;
}

.site-nav__list {
  list-style: none;
  display: flex;
  gap: 1rem;
  padding: 0;
  margin: 0;
}

.site-nav__link {
  font-size: var(--step--1);
  padding: 0.4rem 0.75rem;
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  transition: background var(--transition-snappy), color var(--transition-snappy);
}

.site-nav__link:hover,
.site-nav__link:focus-visible,
.site-nav__link.is-active,
.site-nav__link[aria-current="page"] {
  color: var(--color-text-primary);
  background: rgba(37, 99, 235, 0.16);
}

.site-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.35rem 0.75rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: transparent;
  color: inherit;
  cursor: pointer;
  transition: background var(--transition-snappy), border-color var(--transition-snappy);
}

.theme-toggle:hover,
.theme-toggle:focus-visible {
  background: rgba(37, 99, 235, 0.14);
  border-color: rgba(37, 99, 235, 0.5);
}

.theme-toggle__icon {
  font-size: 1.1rem;
}

.theme-toggle__label {
  font-size: 0.95rem;
}

.site-main {
  max-width: min(1100px, 92vw);
  margin: 0 auto;
  padding: clamp(3rem, 6vw, 4.5rem) 0 5rem;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.9fr);
  gap: clamp(2rem, 4vw, 3rem);
  padding: clamp(2rem, 4vw, 3.2rem);
  background: linear-gradient(120deg, rgba(11, 18, 32, 0.95), rgba(24, 36, 60, 0.9));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(37, 99, 235, 0.15);
  box-shadow: var(--shadow-soft);
}

html[data-theme="light"] .hero {
  background: linear-gradient(120deg, rgba(59, 130, 246, 0.1), rgba(147, 197, 253, 0.15));
}

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

.hero__name {
  margin: 0;
  font-size: var(--step-4);
  font-weight: 700;
  letter-spacing: -0.01em;
  line-height: 1.05;
}

.hero__tagline {
  margin: 0;
  font-size: var(--step-2);
  font-weight: 500;
  color: var(--color-text-primary);
}

.hero__lead {
  margin: 0;
  font-size: var(--step-1);
  color: var(--color-text-secondary);
}

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.hero__media {
  align-self: stretch;
  background: rgba(37, 99, 235, 0.1);
  border-radius: var(--radius-lg);
  padding: 0.75rem;
  display: grid;
  place-items: center;
}

.not-found {
  display: grid;
  gap: 1.5rem;
  text-align: center;
  justify-items: center;
  padding: clamp(4rem, 8vw, 6rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-soft);
}

.not-found p {
  margin: 0;
  max-width: 36ch;
  color: var(--color-text-secondary);
}

.not-found__cta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.now-strip {
  margin-top: clamp(2.5rem, 5vw, 3.75rem);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: rgba(15, 23, 42, 0.32);
}

html[data-theme="light"] .now-strip {
  background: rgba(255, 255, 255, 0.9);
}

.now-strip__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2.5rem;
  align-items: center;
  padding: 1.25rem 1.8rem;
}

.section {
  margin-top: clamp(3rem, 6vw, 4.5rem);
}

.section__header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: var(--step-2);
  margin: 0;
}

.pill-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  padding: 0.5rem 1rem;
  font-size: 0.95rem;
  color: var(--color-text-secondary);
}

.pill-link::after {
  content: "\2192";
  font-size: 1rem;
}

.values-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.value-card {
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: 0 12px 30px rgba(8, 13, 28, 0.25);
}

.value-card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
  font-size: var(--step-1);
}

.value-card p {
  margin: 0;
  color: var(--color-text-secondary);
}

.project-card-grid {
  display: grid;
  gap: clamp(1.5rem, 3vw, 2rem);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  padding: 1.5rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: 0 18px 44px rgba(7, 11, 24, 0.38);
}

html[data-theme="light"] .project-card {
  box-shadow: 0 22px 48px rgba(15, 23, 42, 0.12);
}

.project-card__media {
  overflow: hidden;
  border-radius: var(--radius-md);
  aspect-ratio: 16 / 9;
  background: rgba(37, 99, 235, 0.12);
}

.project-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.project-card__title {
  margin: 0;
  font-size: var(--step-1);
}

.project-card__pitch {
  margin: 0;
  color: var(--color-text-secondary);
}

.tech-list,
.now-strip__list,
.resume-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tech-list li {
  padding: 0.35rem 0.65rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.18);
  color: var(--color-text-primary);
  font-size: 0.85rem;
}

html[data-theme="light"] .tech-list li {
  background: rgba(37, 99, 235, 0.14);
  color: var(--ink);
}

.project-card__links {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0.75rem;
}

.project-card__links a {
  font-size: 0.95rem;
  font-weight: 500;
}

.project-card--compact {
  gap: 1rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.98rem;
  cursor: pointer;
  transition: background var(--transition-snappy), color var(--transition-snappy), border-color var(--transition-snappy);
}

.button--primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
}

.button--primary:hover,
.button--primary:focus-visible {
  background: #1d4ed8;
  border-color: #1d4ed8;
}

.button--ghost {
  background: transparent;
  color: var(--color-text-primary);
  border-color: var(--color-border);
}

.button--ghost:hover,
.button--ghost:focus-visible {
  border-color: rgba(37, 99, 235, 0.6);
  color: var(--accent);
}

.page-hero {
  margin-bottom: clamp(2.5rem, 5vw, 3.5rem);
}

.page-hero h1 {
  font-size: var(--step-3);
  margin-bottom: 0.75rem;
}

.page-hero p {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--step-0);
}

.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.filter-pill {
  padding: 0.45rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--color-border);
  background: transparent;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-snappy), border-color var(--transition-snappy), color var(--transition-snappy);
}

.filter-pill.is-active,
.filter-pill:hover,
.filter-pill:focus-visible {
  color: var(--color-text-primary);
  border-color: rgba(37, 99, 235, 0.6);
  background: rgba(37, 99, 235, 0.16);
}

.filter-pill.is-active {
  font-weight: 600;
}

.modal {
  position: fixed;
  inset: 0;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  z-index: 200;
}

.modal.is-open {
  display: flex;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(6, 11, 25, 0.7);
}

.modal__dialog {
  position: relative;
  max-width: min(680px, 94vw);
  max-height: 90vh;
  overflow-y: auto;
  padding: clamp(1.75rem, 3vw, 2.5rem);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-hard);
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.modal__dialog:focus {
  outline: none;
}

.modal__header h2 {
  margin: 0;
  font-size: var(--step-1);
}

.modal__pitch {
  margin: 0;
  color: var(--color-text-secondary);
}

.modal__bullets {
  list-style: disc;
  margin: 0 0 0 1.25rem;
  color: var(--color-text-secondary);
  display: grid;
  gap: 0.75rem;
}

.modal__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.modal__close {
  position: absolute;
  top: 1rem;
  right: 1rem;
  border: none;
  background: rgba(37, 99, 235, 0.15);
  color: inherit;
  width: 2.3rem;
  height: 2.3rem;
  border-radius: 999px;
  cursor: pointer;
  display: grid;
  place-items: center;
}

.modal__close:hover,
.modal__close:focus-visible {
  background: rgba(37, 99, 235, 0.24);
}

body.modal-open {
  overflow: hidden;
}

.resume {
  display: grid;
  gap: clamp(2rem, 4vw, 3rem);
}

.resume-download {
  display: flex;
  gap: 1rem;
  align-items: center;
  flex-wrap: wrap;
}

.resume-download__hint {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: var(--step--1);
}

.resume-section {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: clamp(1.75rem, 3vw, 2.5rem);
  box-shadow: 0 12px 34px rgba(6, 11, 25, 0.26);
}

.resume-section h2 {
  margin-top: 0;
  margin-bottom: 1rem;
  font-size: var(--step-1);
}

.resume-card + .resume-card {
  margin-top: 1.5rem;
}

.resume-card header {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.resume-card__meta {
  margin: 0;
  color: var(--color-muted);
  font-size: var(--step--1);
}

.resume-pill-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem 0.75rem;
  padding: 0;
  margin: 0;
}

.resume-pill-list li {
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.18);
  font-size: 0.92rem;
}

html[data-theme="light"] .resume-pill-list li {
  background: rgba(37, 99, 235, 0.12);
}

.resume-list {
  list-style: disc;
  margin-left: 1.25rem;
  color: var(--color-text-secondary);
}

.about-layout {
  display: grid;
  gap: clamp(2rem, 4.5vw, 3rem);
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.2fr);
  align-items: start;
}

.about-layout__media img {
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
}

.about-layout__content {
  display: grid;
  gap: 1.5rem;
}

.working-principles h2 {
  margin: 0 0 0.75rem;
  font-size: var(--step-1);
}

.working-principles ul {
  padding-left: 1.25rem;
  margin: 0;
  display: grid;
  gap: 0.5rem;
  color: var(--color-text-secondary);
}

.contact-grid {
  display: grid;
  gap: clamp(1.75rem, 3.5vw, 2.5rem);
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.contact-card {
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: clamp(1.5rem, 3vw, 2.25rem);
  box-shadow: 0 16px 42px rgba(6, 11, 25, 0.28);
}

.contact-card address {
  font-style: normal;
  color: var(--color-text-secondary);
  display: grid;
  gap: 0.75rem;
}

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

.form-group {
  display: grid;
  gap: 0.45rem;
}

.form-group label {
  font-weight: 600;
  font-size: 0.95rem;
}

input,
textarea {
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: rgba(8, 13, 27, 0.45);
  color: var(--color-text-primary);
  padding: 0.65rem 0.85rem;
  font-size: 1rem;
  transition: border-color var(--transition-snappy), background var(--transition-snappy);
}

html[data-theme="light"] input,
html[data-theme="light"] textarea {
  background: rgba(255, 255, 255, 0.95);
}

input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-color: var(--accent);
}

textarea {
  resize: vertical;
}

.form-smallprint {
  margin: 0;
  color: var(--color-muted);
  font-size: 0.82rem;
}

.form-feedback {
  min-height: 1.2rem;
  font-size: 0.92rem;
}

.form-feedback[data-status="error"] {
  color: var(--danger);
}

.form-feedback[data-status="success"] {
  color: var(--success);
}

.site-footer {
  border-top: 1px solid var(--color-border);
  background: rgba(5, 8, 21, 0.9);
  padding: 2.5rem 0;
}

html[data-theme="light"] .site-footer {
  background: rgba(248, 250, 252, 0.92);
}

.site-footer__inner {
  max-width: min(1100px, 92vw);
  margin: 0 auto 1.5rem;
  display: flex;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.site-footer__social {
  display: flex;
  gap: 1.25rem;
  align-items: center;
}

.site-footer__meta {
  text-align: center;
  margin: 0;
  color: var(--color-muted);
  font-size: 0.85rem;
}

.notice {
  margin: 1rem 0 0;
  color: var(--color-muted);
}

.empty-state {
  color: var(--color-muted);
}

.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;
}

@media (max-width: 960px) {
  .site-header__inner {
    flex-wrap: wrap;
  }

  .site-nav {
    order: 3;
    width: 100%;
  }

  .site-nav__list {
    justify-content: space-between;
  }

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

  .hero__media {
    order: -1;
  }

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

@media (max-width: 720px) {
  .site-nav__list {
    gap: 0.5rem;
  }

  .section__header {
    flex-direction: column;
    align-items: flex-start;
  }

  .hero__cta {
    width: 100%;
  }

  .hero__cta .button {
    flex: 1 1 auto;
    justify-content: center;
  }

  .now-strip__inner {
    flex-direction: column;
    align-items: flex-start;
  }

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

  .modal__dialog {
    padding: 1.5rem;
  }
}

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