/* Oberon personal card — portal logic + two-col intro */
:root {
  --c-primary: #222828;
  --c-accent: #ffdc73;
  --c-bg: #ffffff;
  --c-bg-secondary: #f5f7f7;
  --c-text: #222828;
  --c-text-sub: #5a6262;
  --c-text-light: #8a9292;
  --sp-sm: 8px;
  --sp-md: 16px;
  --sp-lg: 24px;
  --sp-xl: 32px;
  --fs-xs: 0.75rem;
  --fs-sm: 0.875rem;
  --fs-base: 1rem;
  --lh-relaxed: 1.625;
  --radius-lg: 0.5rem;
  --radius-full: 9999px;
  --shadow-sm: 0 1px 2px rgba(34, 40, 40, 0.06);
  --shadow-md: 0 4px 14px rgba(34, 40, 40, 0.1);
  --transition-fast: 150ms ease;
  --font: "Outfit", "Noto Sans TC", -apple-system, BlinkMacSystemFont, sans-serif;
}

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

body {
  margin: 0;
  min-height: 100dvh;
  background-color: var(--c-bg-secondary);
  font-family: var(--font);
  color: var(--c-text);
  -webkit-font-smoothing: antialiased;
}

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

.poto {
  display: flex;
  flex-direction: column;
  min-height: 100dvh;
  max-width: 480px;
  margin: 0 auto;
  background: var(--c-bg-secondary);
}

.poto-content {
  flex: 1;
  padding: var(--sp-lg);
}

/* Two-column: headshot | name + intro */
.poto-intro {
  display: grid;
  grid-template-columns: 112px 1fr;
  gap: var(--sp-md);
  align-items: start;
  margin-bottom: var(--sp-xl);
}

.poto-intro__photo {
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--c-primary);
  aspect-ratio: 1;
  box-shadow: var(--shadow-sm);
}

.poto-intro__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center top;
}

.poto-intro__copy {
  min-width: 0;
}

.poto-kicker {
  margin: 0 0 var(--sp-sm);
  text-align: left;
  font-size: var(--fs-sm);
  font-weight: 700;
  color: var(--c-text);
  line-height: 1.35;
}

.poto-description {
  margin: 0;
  color: var(--c-text-sub);
  font-size: var(--fs-sm);
  line-height: var(--lh-relaxed);
  text-align: left;
}

/* Links stay single column */
.poto-links {
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.poto-link {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  padding: var(--sp-md) var(--sp-lg);
  background-color: var(--c-bg);
  border-radius: var(--radius-lg);
  color: var(--c-text);
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: background-color var(--transition-fast), box-shadow var(--transition-fast), transform var(--transition-fast);
}

.poto-link:hover {
  box-shadow: var(--shadow-md);
}

.poto-link:active {
  transform: scale(0.98);
}

.poto-link:focus-visible {
  outline: 2px solid var(--c-primary);
  outline-offset: 2px;
}

.poto-link-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  background-color: var(--c-accent);
  color: var(--c-text);
  flex-shrink: 0;
}

.poto-link-label {
  flex: 1;
  font-size: var(--fs-base);
  font-weight: 500;
}

.poto-link-arrow {
  display: flex;
  align-items: center;
  color: var(--c-text-light);
}

.poto-footer {
  padding: var(--sp-lg);
  text-align: center;
}

.poto-copyright {
  margin: 0;
  color: var(--c-text-light);
  font-size: var(--fs-xs);
}

@media (max-width: 360px) {
  .poto-intro {
    grid-template-columns: 96px 1fr;
    gap: var(--sp-sm);
  }
}

@media (prefers-reduced-motion: reduce) {
  .poto-link {
    transition: none;
  }

  .poto-link:active {
    transform: none;
  }
}

.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;
}