:root {
  --bg: #FFFFFF;
  --text: #111111;
  --text-secondary: #2B2B2B;
  --accent: #2563EB;
  --border: color-mix(in srgb, var(--text-secondary) 14%, transparent);
  --card-hover-bg: color-mix(in srgb, var(--text-secondary) 5%, transparent);
}

:root[data-theme="dark"] {
  --bg: #0E141E;
  --text: #FFFFFF;
  --text-secondary: #D1D1D1;
  --accent: #90C5FF;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E141E;
    --text: #FFFFFF;
    --text-secondary: #D1D1D1;
    --accent: #90C5FF;
  }
}

* {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text-secondary);
  font-family: "DM Sans", Helvetica, Arial, sans-serif;
  font-size: 0.875rem;
  line-height: 1.5;
  transition: background-color 0.2s ease, color 0.2s ease;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  margin: 0;
  background: none;
  border: none;
  color: inherit;
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  background: var(--bg);
  color: var(--text);
  padding: 0.75rem 1rem;
  z-index: 100;
}

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* Header */

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 640px;
  margin: 0 auto;
  padding: 1.5rem 1.5rem 0;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
}

.logo-mark img {
  width: 100%;
  height: 100%;
}

.logo-mark .logo-dark {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .logo-mark .logo-light {
    display: none;
  }
  :root:not([data-theme="light"]) .logo-mark .logo-dark {
    display: block;
  }
}

:root[data-theme="dark"] .logo-mark .logo-light {
  display: none;
}

:root[data-theme="dark"] .logo-mark .logo-dark {
  display: block;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.theme-toggle {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--text-secondary);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.theme-toggle:hover {
  color: var(--accent);
  background: var(--card-hover-bg);
}

.theme-toggle .icon {
  width: 18px;
  height: 18px;
}

.theme-toggle .icon-moon {
  display: none;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) .theme-toggle .icon-sun {
    display: none;
  }
  :root:not([data-theme="light"]) .theme-toggle .icon-moon {
    display: block;
  }
}

:root[data-theme="dark"] .theme-toggle .icon-sun {
  display: none;
}

:root[data-theme="dark"] .theme-toggle .icon-moon {
  display: block;
}

/* Main / sections */

main {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

.fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

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

/* Hero */

.hero {
  text-align: center;
  padding: 3rem 0 2rem;
}

.avatar {
  width: 96px;
  height: 96px;
  border-radius: 20px;
  overflow: hidden;
  margin: 0 auto 1.5rem;
  background: var(--card-hover-bg);
}

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

.hero h1 {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--text);
  margin: 0 0 0.4rem;
}

.tagline {
  color: var(--text-secondary);
  margin: 0 0 1.5rem;
  font-size: 1.05rem;
}

.social-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.1rem;
  margin-bottom: 1.25rem;
}

.social-row a {
  color: var(--text-secondary);
  display: inline-flex;
  transition: color 0.15s ease;
}

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

.social-row .icon {
  width: 18px;
  height: 18px;
  fill: currentColor;
}

.button-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1rem;
  border: 1px solid var(--border);
  border-radius: 999px;
  transition: border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

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

.btn .icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

.copy-toast {
  position: fixed;
  left: 50%;
  bottom: 2rem;
  transform: translate(-50%, 0.5rem);
  font-size: 0.95rem;
  font-weight: 500;
  background: var(--text);
  color: var(--bg);
  padding: 0.85rem 1.5rem;
  border-radius: 999px;
  opacity: 0;
  z-index: 200;
  transition: opacity 0.25s ease, transform 0.25s ease;
  pointer-events: none;
  white-space: nowrap;
}

.copy-toast.is-visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

@media (prefers-reduced-motion: reduce) {
  .copy-toast {
    transition: opacity 0.15s ease;
    transform: translate(-50%, 0);
  }
}

/* Row sections (About / Work / Stack) */

.row-section {
  display: grid;
  grid-template-columns: 100px 1fr;
  gap: 1.5rem;
  padding: 2rem 0;
  border-top: 1px solid var(--border);
}

.row-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin: 0;
}

.row-content {
  min-width: 0;
}

.about-content p {
  margin: 0 0 1rem;
}

.about-content p:last-child {
  margin-bottom: 0;
}

/* Work */

.work-card {
  display: block;
  padding: 1.25rem;
  border: 1px solid var(--border);
  border-radius: 12px;
}

.work-card + .work-card {
  margin-top: 0.75rem;
}

.work-title {
  font-weight: 600;
  font-size: inherit;
  color: var(--text);
  margin: 0 0 0.75rem;
}

.work-bullets {
  color: var(--text-secondary);
  margin: 0 0 1.1rem;
  padding-left: 1.1rem;
}

.work-bullets li + li {
  margin-top: 0.3rem;
}

.work-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

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

.btn-primary:hover {
  background: color-mix(in srgb, var(--accent) 85%, var(--text));
  border-color: color-mix(in srgb, var(--accent) 85%, var(--text));
  color: var(--bg);
}

/* Stack */

.stack-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 0.75rem;
}

.stack-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  padding: 1.5rem 0.75rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text-secondary);
  transition: color 0.15s ease, border-color 0.15s ease;
}

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

.stack-icon {
  width: 28px;
  height: 28px;
  background-color: currentColor;
  -webkit-mask-repeat: no-repeat;
  mask-repeat: no-repeat;
  -webkit-mask-position: center;
  mask-position: center;
  -webkit-mask-size: contain;
  mask-size: contain;
}

.stack-icon.claude { -webkit-mask-image: url("assets/stack/claude.png"); mask-image: url("assets/stack/claude.png"); }
.stack-icon.cursor { -webkit-mask-image: url("assets/stack/cursor.png"); mask-image: url("assets/stack/cursor.png"); }
.stack-icon.lovable { -webkit-mask-image: url("assets/stack/lovable.png"); mask-image: url("assets/stack/lovable.png"); }
.stack-icon.figma { -webkit-mask-image: url("assets/stack/figma.png"); mask-image: url("assets/stack/figma.png"); }
.stack-icon.storybook { -webkit-mask-image: url("assets/stack/storybook.png"); mask-image: url("assets/stack/storybook.png"); }
.stack-icon.github { -webkit-mask-image: url("assets/stack/github.png"); mask-image: url("assets/stack/github.png"); }

/* Footer */

.site-footer {
  max-width: 640px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  text-align: center;
}

.site-footer p {
  margin: 0 0 0.3rem;
  opacity: 0.5;
}

.site-footer .muted {
  color: var(--text-secondary);
  margin-bottom: 0;
}

/* Responsive */

@media (max-width: 560px) {
  .row-section {
    grid-template-columns: 1fr;
    gap: 0.75rem;
  }

  .hero {
    padding: 2rem 0 2rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }
}

.btn-label-short {
  display: none;
}

@media (max-width: 374px) {
  .btn-label-full {
    display: none;
  }

  .btn-label-short {
    display: inline;
  }
}