@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

:root {
  --bg:      #FDF6E3;
  --fg:      #657B83;
  --muted:   #93A1A1;
  --border:  rgba(147,161,161,0.2);
  --primary: #268BD2;
  --font-sans: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

.dark {
  --bg:      #1A1A1A;
  --fg:      #A6A6A6;
  --muted:   #6B6B6B;
  --border:  rgba(56,56,56,0.8);
  --primary: #268BD2;
}

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

html { font-size: 16px; }

body {
  background-color: var(--bg);
  color: var(--fg);
  font-family: var(--font-sans);
  min-height: 100vh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a { color: inherit; text-decoration: none; }
a:visited { color: var(--muted); }
a:visited:hover { color: var(--primary); }

.site-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-height: 100vh;
}

/* ── Header ── */
header {
  width: 100%;
  max-width: 720px;
  padding: 48px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-name {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 1.125rem;
  text-transform: uppercase;
  color: var(--fg);
  transition: color 0.15s;
}
.site-name:hover,
.site-name:visited:hover { color: var(--primary); }
.site-name:visited { color: var(--fg); }

nav {
  display: flex;
  align-items: center;
  gap: 24px;
  font-family: var(--font-mono);
  font-size: 0.875rem;
}

nav a {
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.15s;
}
nav a:hover        { color: var(--primary); }
nav a:visited      { color: var(--muted); }
nav a:visited:hover{ color: var(--primary); }
nav a.active       { color: var(--primary); font-weight: 700; }
nav a.active:visited { color: var(--primary); }

#theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--muted);
  display: flex;
  align-items: center;
  padding: 6px;
  margin-right: -6px;
  transition: color 0.15s;
  line-height: 0;
}
#theme-toggle:hover { color: var(--primary); }

/* ── Main ── */
main {
  width: 100%;
  max-width: 720px;
  padding: 0 24px 96px;
  flex: 1;
}

/* ── Home page ── */
.tagline {
  font-family: var(--font-mono);
  font-size: 0.875rem;
  text-transform: uppercase;
  color: var(--muted);
  font-weight: 400;
  margin-bottom: 64px;
}

.writings {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.writing-item {
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-bottom: 1px solid var(--border);
  padding-bottom: 24px;
}
.writing-item:last-child { border-bottom: none; }

@media (min-width: 640px) {
  .writing-item {
    flex-direction: row;
    align-items: flex-start;
    justify-content: space-between;
    gap: 24px;
  }
}

.writing-content {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

@media (min-width: 640px) {
  .writing-content { max-width: 80%; }
}

.writing-title {
  font-family: var(--font-mono);
  font-size: 1rem;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--fg);
  line-height: 1.6;
  transition: color 0.15s;
  display: block;
}
.writing-title:visited { color: var(--fg); }
.writing-item:hover .writing-title,
.writing-title:hover { color: var(--primary); }

.writing-subtitle {
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

.writing-meta {
  display: flex;
  align-items: center;
  flex-shrink: 0;
}

.writing-date {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}

@media (min-width: 640px) {
  .writing-date { width: 90px; text-align: right; }
}

/* ── About page ── */
.about-wrapper {
  display: flex;
  flex-direction: column;
  gap: 40px;
  margin-top: 32px;
}

.avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  overflow: hidden;
  flex-shrink: 0;
}
.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.bio {
  display: flex;
  flex-direction: column;
  gap: 32px;
  max-width: 560px;
}

.bio-text {
  display: flex;
  flex-direction: column;
  gap: 24px;
  color: #657B83;
  line-height: 1.7;
  font-size: 1.05rem;
}
.dark .bio-text { color: var(--fg); }

.social-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.social-links a {
  color: var(--muted);
  display: flex;
  align-items: center;
  padding: 8px;
  transition: color 0.15s;
  line-height: 0;
}
.social-links a:first-child { margin-left: -8px; }
.social-links a:hover        { color: var(--primary); }
.social-links a:visited      { color: var(--muted); }
.social-links a:visited:hover{ color: var(--primary); }
.social-links svg { width: 20px; height: 20px; }

/* ── Fade-in ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}
.page-content {
  animation: fadeInUp 0.7s ease-out both;
}