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

@font-face {
  font-family: 'Geist Sans';
  src: url('../fonts/Geist_Variable.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-display: swap;
}

@font-face {
  font-family: 'Geist Sans Fallback';
  src: local(Arial);
  ascent-override: 85.83%;
  descent-override: 20.53%;
  line-gap-override: 9.33%;
  size-adjust: 107.19%;
}

body {
  font-family: 'Geist Sans', 'Geist Sans Fallback', system-ui, sans-serif;
  font-feature-settings: "liga" 1, "calt" 1;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  padding: 2rem;
  line-height: 1.6;
  transition: background-color var(--motion-slow), color var(--motion-slow);
}

html[data-theme="dark"],
html[data-theme="light"] {
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease);
}

h1 {
  font-size: 2rem;
  font-weight: 600;
  margin-bottom: 16px;
  color: var(--text);
}

.subtitle {
  font-size: 16px;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.bio {
  font-size: 15px;
  color: var(--text-secondary);
  margin-bottom: 48px;
  line-height: 1.5;
}

.section-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: .05em;
  margin-bottom: 16px;
}

.container {
  max-width: 600px;
  width: 100%;
  margin: 0 auto;
}

.section {
  margin-bottom: 3rem;
}

.theme-toggle {
  position: fixed;
  top: 24px;
  right: 24px;
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 8px;
  padding: 10px;
  cursor: pointer;
  transition: all var(--motion-fast);
  z-index: 1000;
}

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

.theme-toggle:focus,
.theme-toggle:focus-visible,
.theme-toggle:active {
  outline: none;
  box-shadow: none;
  background: none;
}

.theme-toggle .icon {
  position: absolute;
  width: 20px;
  height: 20px;
  display: block;
  filter: var(--icon-filter);
  transition: filter var(--motion-normal), opacity var(--motion-normal);
  transition: opacity .15s ease;
}

.links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  background: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  font-size: 14px;
  position: relative;
  overflow: hidden;
  transition: border-color var(--motion-fast), background var(--motion-fast);
}

.link-label {
  display: flex;
  align-items: center;
  gap: 8px;
}

.link-icon {
  display: block;
  filter: var(--icon-filter);
  transition: filter var(--motion-normal)
}

/* Subtle underline (Ruru-style) */
.link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: color-mix(in srgb, var(--accent), white 10%);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform 0.3s var(--ease);
}

.link:hover::after {
  transform: scaleX(1);
  transform-origin: left;
}

.link:hover {
  border-color: var(--border-hover);
  background: var(--card-hover);
}

.link-arrow {
  color: var(--text-tertiary);
  font-size: 14px;
  display: flex;
  align-items: center;
}

.projects {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.project {
  padding: 20px;
  background: var(--card-bg);
  border: 1px solid var(--divider);
  border-radius: 8px;
  transition: background 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--motion-normal);
}

.project:hover {
  border-color: var(--border-hover);
  background: var(--card-hover);
  transform: translateY(-3px);
}

.project-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: 8px;
}

.project-name {
  font-size: 16px;
  font-weight: 500;
  margin-bottom: 12px;
}

.project-status {
  font-size: 12px;
  padding: 2px 8px;
  background: var(--card-hover);
  border: 1px solid var(--border-hover);
  border-radius: 4px;
  color: var(--text-secondary);
  white-space: nowrap;
}

.project-status.active {
  background: var(--accent-bg);
  border-color: var(--accent-border);
  color: var(--accent);
}

.project-role {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 8px;
}

.project-description {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.6;
}

.project-description.spaced {
  margin-bottom: 24px;
}

.project-description ul {
  margin-top: 12px;
  margin-left: 20px;
  list-style: none;
}

.project-description li {
  padding: 4px 0;
  position: relative;
}

.project-description li::before {
  content: "•";
  position: absolute;
  left: -15px;
  color: var(--text-tertiary);
}

.email-display {
  margin-bottom: 24px;
  padding: 16px;
  background: var(--bg);
  border: 1px solid var(--divider);
  border-radius: 8px;
}

.email-label {
  font-size: 13px;
  color: var(--text-tertiary);
  margin-bottom: 6px;
}

.email-display a {
  color: var(--text);
  text-decoration: none;
  font-size: 15px;
  transition: opacity var(--motion-fast);
}

.email-display a:hover {
  opacity: .8;
}

form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

input,
textarea {
  width: 100%;
  padding: 12px;
  background: var(--bg);
  border: 1px solid var(--divider);
  border-radius: 6px;
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  transition: border-color var(--motion-fast);
}

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

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

button {
  padding: 12px 24px;
  background: var(--button-bg);
  color: var(--button-text);
  border: none;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--motion-fast);
}

button:hover:not(:disabled) {
  background: var(--button-hover);
}

button:disabled {
  opacity: .6;
  cursor: not-allowed;
}

#formMessage {
  margin-top: 16px;
  font-size: 14px;
  text-align: center;
  display: none;
  padding: 12px;
  border-radius: 6px;
  opacity: 0;
  transition: opacity var(--motion-slow);
}

#formMessage.success {
  background: var(--accent-bg);
  color: var(--accent);
  border: 1px solid var(--accent-border);
  opacity: 1;
}

#formMessage.error {
  background: #fef2f2;
  color: var(--error);
  border: 1px solid #fecaca;
  opacity: 1;
}

footer {
  margin-top: 64px;
  padding-top: 32px;
  border-top: 1px solid var(--divider);
  text-align: center;
  font-size: 13px;
  color: var(--text-tertiary);
}

.hidden {
  display: none;
}

.fade-out {
  opacity: 0;
  transition: opacity var(--motion-normal);
}

.fade-in {
  opacity: 1;
  transition: opacity var(--motion-normal);
}

.blur-8 {
  filter: blur(8px);
}

::selection {
  background: color-mix(in srgb, var(--accent), transparent 70%);
}

::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}

::-webkit-scrollbar-thumb {
  background: var(--border-hover);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-focus);
}

* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-hover) transparent;
}

@media (max-width: 640px) {
  h1 {
    font-size: 28px;
  }

  .project-header {
    flex-direction: column;
    gap: 8px;
  }

  .project-status {
    align-self: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition: none !important;
    animation: none !important;
    scroll-behavior: auto !important;
  }
}