/* Hi */

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

:root {
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --text-primary: #2a2a2a;
  --text-secondary: #555555;
  --bg-main: #FEF9EE;
  --bg-subtle: #f5f5f5;
  --border-color: #e5e5e5;
  --link-hover: #000000;
  --transition-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-fast: 120ms cubic-bezier(0.1, 0.7, 0.1, 1);
  --theme-toggle-size: 32px;
  --signature-color: #165fe8;
  --selection-bg: rgba(22, 95, 232, 0.2);
  --selection-color: var(--text-primary);
  --page-transition: 0.4s var(--transition-smooth);
  --popup-bg: rgba(0, 0, 0, 0.1);
  --z-page: 1;
  --z-theme: 2;
  --z-popup: 3;
  --highlight-text: rgba(67, 90, 111, 0.08);
}

/* Dark theme variables */
[data-theme="dark"] {
  --text-primary: #d1d1d1;
  --text-secondary: #999999;
  --bg-main: #1a1a1e;
  --bg-subtle: #18181c;
  --border-color: #272729;
  --link-hover: #ffffff;
  --signature-color: #71a2ff;
  --selection-bg: rgba(113, 162, 255, 0.2);
  --selection-color: var(--text-primary);
  --highlight-text: rgba(152, 170, 189, 0.08);
}

body {
  font-family: var(--font-mono);
  line-height: 1.5;
  color: var(--text-primary);
  font-size: 14px;
  -webkit-font-smoothing: antialiased;
  background: var(--bg-main);
  letter-spacing: -0.011em;
}

a {
  color: var(--text-primary);
  text-decoration: underline;
  text-underline-offset: 3px;
  text-decoration-thickness: 1px;
}

a:hover {
  color: var(--link-hover);
}

::selection {
  background: var(--selection-bg);
  color: var(--selection-color);
}

.highlight-text {
  background-color: var(--highlight-text);
  border-radius: 3px;
  padding: 2px 4px;
  margin: 0 -4px;
}

#page-wrapper {
  transition: opacity var(--transition-fast);
  position: relative;
  z-index: var(--z-page);
}

#popup-wrapper {
  position: fixed;
  z-index: var(--z-popup);
  pointer-events: none;
}

.container {
  max-width: 640px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  padding: 72px 0 36px;
}

.header .logo {
  margin-bottom: 24px;
  cursor: pointer;
  transform: rotate(0deg);
  transition: transform 0.2s var(--transition-smooth);
}

.header h1 {
  font-size: 30px;
  font-weight: 500;
  margin-bottom: 16px;
  line-height: 1.3;
}

.header h1 .title {
  letter-spacing: -0.02em;
  display: inline-block;
}

.header h1 .byline {
  display: block;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 400;
  margin-top: 4px;
  letter-spacing: normal;
}

.header-desc {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 16px;
}

.projects,
.companies,
.services,
.founder-message {
  padding: 48px 0;
}

.services,
.founder-message,
.footer {
  border-top: 1px solid var(--border-color);
}

.projects h2,
.companies h2,
.services h2,
.founder-message h2 {
  font-size: 16px;
  margin-bottom: 24px;
  font-weight: 500;
  letter-spacing: -0.02em;
}

.card-grid {
  display: grid;
  gap: 16px;
}

.card {
  padding: 16px;
  margin: 0 -16px;
  border: 1px solid var(--border-color);
  border-radius: 4px;
  transition: background-color var(--transition-fast);
  will-change: background-color;
  background-color: transparent;
}

.card:hover {
  background-color: var(--bg-subtle);
}

.card.is-available {
  border-style: dashed;
}

.card.is-available:hover .cursor {
  display: inline;
}

.card h3 {
  font-size: 14px;
  margin-bottom: 8px;
  font-weight: 500;
}

.card p {
  font-size: 13px;
  color: var(--text-secondary);
}

.card .card-icon {
  width: 24px;
  height: 24px;
  display: block;
  margin-bottom: 14px;
}

.founder-message p {
  color: var(--text-secondary);
  font-size: 13px;
  margin-bottom: 16px;
  max-width: 580px;
}

.founder-message p:last-child {
  margin-bottom: 0;
}

.founder-name {
  margin-top: 24px;
  font-weight: 500;
  color: var(--text-primary);
}

.founder-photos {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin: 24px 0;
}

.founder-photos img {
  display: block;
  max-width: 100%;
  height: auto;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  transition: filter var(--transition-fast);
}

.founder-photos img:hover {
  filter: brightness(1.05);
}

.signature-container {
  margin-top: 24px;
}

.footer {
  padding: 36px 0;
  margin-top: 108px;
}

.footer-links {
  display: flex;
  justify-content: space-between;
  gap: 16px;
}

.social-links {
  display: flex;
  gap: 16px;
  justify-content: flex-start;
  white-space: nowrap;
}

.social-link {
  color: var(--text-secondary);
  font-size: 13px;
  transition: color var(--transition-fast);
}

.social-link:hover {
  color: var(--text-primary);
}

.legal {
    color: var(--text-secondary);
    font-size: x-small;
}

.website-link {
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

/* Performance optimization for images */
img {
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
}

/* Better mobile tap targets */
@media (max-width: 768px) {
  .header {
    padding: 56px 0 40px;
  }

  .header h1 {
    font-size: 24px;
  }

  .footer-links {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }
}

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

/* Theme toggle styles */
.theme-toggle {
  position: fixed;
  top: 20px;
  right: 20px;
  width: var(--theme-toggle-size);
  height: var(--theme-toggle-size);
  padding: 8px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  background: var(--bg-main);
  color: var(--text-primary);
  cursor: pointer;
  transition: background-color var(--transition-fast);
  z-index: var(--z-theme);
}

.theme-toggle:hover {
  background: var(--bg-subtle);
}

.theme-toggle svg {
  width: 100%;
  height: 100%;
}

.reaction-overlay {
  position: fixed;
  width: 308px;
  height: 176px;
  z-index: 9999;
  pointer-events: none;
}

.cursor {
  display: none;
  animation: blink 1s step-end infinite;
  color: var(--signature-color);
}

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

/* Email popup styles */
.email-popup {
  position: fixed;
  inset: 0;
  background: transparent;
  pointer-events: all;
  display: flex;
  align-items: center;
  justify-content: center;
  animation: fadeBackground 400ms var(--transition-smooth) forwards;
}

.email-popup.closing {
  animation: fadeBackgroundOut 400ms var(--transition-smooth) forwards;
}

.email-popup-content {
  background: var(--bg-main);
  padding: 48px 24px 24px 24px;
  border-radius: 4px;
  border: 1px solid var(--border-color);
  text-align: center;
  animation: slideFromLeft 400ms var(--transition-smooth);
  width: 100%;
  max-width: 300px;
  margin-top: 36px;
  position: relative;
}

.email-popup.closing .email-popup-content {
  animation: slideToRight 400ms var(--transition-smooth) forwards;
}

.email-popup-content h3 {
  font-weight: 500;
  color: var(--text-primary);
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.email-popup-content p {
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.email-popup-content button {
  background: var(--bg-subtle);
  border: 1px solid var(--border-color);
  padding: 8px 16px;
  border-radius: 4px;
  color: var(--text-primary);
  cursor: pointer;
  font-family: var(--font-mono);
  transition: background-color var(--transition-fast);
}

.email-popup-content button:hover {
  background: var(--border-color);
}

.email-popup-avatar {
  position: absolute;
  top: -36px;
  left: 50%;
  transform: translateX(-50%);
  width: 72px;
  height: 72px;
  border-radius: 50%;
  border: 1px solid var(--border-color);
  object-fit: cover;
  background: var(--bg-main);
}

@keyframes fadeBackground {
  from {
    background-color: transparent;
  }
  to {
    background-color: var(--popup-bg);
  }
}

@keyframes fadeBackgroundOut {
  from {
    background-color: var(--popup-bg);
  }
  to {
    background-color: transparent;
  }
}

@keyframes slideFromLeft {
  from {
    opacity: 0;
    transform: translateX(-100vw);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes slideToRight {
  from {
    opacity: 1;
    transform: translateX(0);
  }
  to {
    opacity: 0;
    transform: translateX(100vw);
  }
}