/* ===========================
   Variables & Reset
   =========================== */
:root {
  --color-bg: #ffffff;
  --color-text: #1a1a1a;
  --color-text-light: #666666;
  --color-border: #e5e5e5;
  --font-main: 'EB Garamond', Georgia, serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

/* ===========================
   Side Navigation
   =========================== */
.side-nav {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 200px;
  padding: 48px 32px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 24px;
  z-index: 100;
}

.side-nav a {
  font-size: 0.875rem;
  color: var(--color-text-light);
  transition: color 0.2s ease;
}

.side-nav a:hover {
  color: var(--color-text);
}

/* ===========================
   Main Content
   =========================== */
.main-content {
  margin-left: 200px;
  padding: 120px 80px 80px;
  max-width: 900px;
}

/* ===========================
   Intro Section
   =========================== */
.intro {
  margin-bottom: 120px;
}

.intro-name {
  font-size: 2rem;
  font-weight: 500;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

.intro-bio p {
  font-size: 1.125rem;
  color: var(--color-text-light);
  margin-bottom: 24px;
  max-width: 600px;
  line-height: 1.7;
}

.intro-bio p:last-child {
  margin-bottom: 0;
}

/* ===========================
   Work Section
   =========================== */
.work {
  margin-bottom: 120px;
}

.work-title {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  margin-bottom: 32px;
}

.portfolio-grid {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.portfolio-card {
  display: flex;
  align-items: flex-start;
  gap: 24px;
  padding: 24px 0;
  border-bottom: 1px solid var(--color-border);
  transition: opacity 0.2s ease;
}

.portfolio-card:first-child {
  border-top: 1px solid var(--color-border);
}

.portfolio-card:hover {
  opacity: 0.6;
}

.portfolio-thumb {
  width: 120px;
  flex-shrink: 0;
  position: relative;
}

.portfolio-thumb img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.portfolio-label {
  position: absolute;
  top: 4px;
  left: 4px;
  padding: 2px 6px;
  font-size: 0.6rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  background: var(--color-text);
  color: var(--color-bg);
}

.portfolio-info {
  flex: 1;
  padding-top: 4px;
}

.portfolio-publication {
  display: block;
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-bottom: 8px;
}

.portfolio-headline {
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.4;
}

/* ===========================
   Contact Section
   =========================== */
.contact {
  padding-top: 60px;
}

.contact-title {
  font-size: 0.875rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  margin-bottom: 24px;
}

.contact-text {
  font-size: 1rem;
  color: var(--color-text-light);
  margin-bottom: 16px;
}

.contact-email {
  display: inline-block;
  font-size: 1rem;
  color: var(--color-text);
  margin-bottom: 32px;
  border-bottom: 1px solid var(--color-text);
}

.contact-email:hover {
  opacity: 0.6;
}

.contact-social {
  display: flex;
  gap: 24px;
}

.contact-social a {
  font-size: 0.875rem;
  color: var(--color-text-light);
  transition: color 0.2s ease;
}

.contact-social a:hover {
  color: var(--color-text);
}

/* ===========================
   Responsive
   =========================== */
@media (max-width: 900px) {
  .side-nav {
    position: fixed;
    left: 0;
    right: 0;
    top: auto;
    bottom: 0;
    width: 100%;
    height: auto;
    flex-direction: row;
    justify-content: center;
    padding: 16px 24px;
    background: var(--color-bg);
    border-top: 1px solid var(--color-border);
    gap: 32px;
  }

  .main-content {
    margin-left: 0;
    padding: 80px 24px 100px;
  }

  .intro {
    margin-bottom: 80px;
  }

  .intro-name {
    font-size: 1.75rem;
  }

  .intro-bio p {
    font-size: 1rem;
  }

  .work {
    margin-bottom: 80px;
  }

  .portfolio-card {
    flex-direction: column;
    gap: 16px;
  }

  .portfolio-thumb {
    width: 100%;
    max-width: 200px;
  }
}