/* ============================================================
   MAKEDA Y. TADESSE — STYLES.CSS
   Global design system, shared styles, CSS variables
   ============================================================ */

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

/* ── DESIGN TOKENS ─────────────────────────────────────────── */
:root {
  --bg:            #f6f6f5;
  --ink:           #1C1917;
  --ink-deep:      rgb(49, 42, 38);;
  --ink-mid:       #6B6560;
  --ink-light:     #A8A39D;
  --ink-xlight:    #D4CCB8;
  --accent:        #C0392B;
  --accent-dark:   #96291F;
  --accent-2:      #2C5F7A;
  --accent-3:      #55af31;

  --grid-color:    rgba(180, 168, 148, 0.18);
  --grid-size:     28px;

  --font-bold:    'Boldonse', system-ui;
  --font-mono:     'Inconsolata', 'Courier New', monospace;
  --font-serif:     'Boldonse', system-ui;

  --nav-height:    60px;
  --page-pad-x:    2.5rem;
  --max-width:     1200px;
}

/* ── BASE ───────────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  background-color: var(--bg);
  background-image:
    linear-gradient(var(--grid-color) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-color) 1px, transparent 1px);
  background-size: var(--grid-size) var(--grid-size);
  color: var(--ink);
  font-family: var(--font-mono);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }

/* ── NAVIGATION ─────────────────────────────────────────────── */
.site-nav {
  position: fixed;
  top: 0; left: 0;
  width: 100%;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 var(--page-pad-x);
  height: var(--nav-height);
  transition: background 0.3s, border-color 0.3s;
}

.site-nav.scrolled {
  background: rgba(244, 241, 236, 0.94);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--ink-xlight);
}

.nav-logo {
  height: auto;
  width: 30px;
  display: block;
  transition: opacity 0.2s;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mid);
  transition: color 0.2s;
}
.nav-links a:hover,
.nav-links a.active { color: var(--accent); }

/* ── EYEBROW ────────────────────────────────────────────────── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  display: block;
}

/* ── PAGE WRAPPER (inner pages) ─────────────────────────────── */
.page-wrapper {
  padding-top: calc(var(--nav-height) + 3rem);
  padding-left: var(--page-pad-x);
  padding-right: var(--page-pad-x);
  padding-bottom: 6rem;
  max-width: var(--max-width);
  margin: 0 auto;
}

/* ── PAGE TITLE ─────────────────────────────────────────────── */
.page-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.0;
  color: var(--ink);
  margin-bottom: 0.3rem;
}
.page-title em { font-style: italic; color: var(--accent); }

/* ── DIVIDER ────────────────────────────────────────────────── */
.divider {
  border: none;
  border-top: 1px solid var(--ink-xlight);
  margin: 2.5rem 0;
}

/* ── TAGS ───────────────────────────────────────────────────── */
.tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-mid);
  border: 1px solid var(--ink-xlight);
  padding: 0.2rem 0.55rem;
}
.tag-accent { border-color: var(--accent); color: var(--accent); }

/* ── PROJECT CARD ───────────────────────────────────────────── */
.project-card {
  border-top: 1px solid var(--ink-xlight);
  padding: 1.8rem 0;
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 2rem;
  transition: border-color 0.2s;
  text-decoration: none;
  color: inherit;
  cursor: pointer;
}
.project-card:hover { 
    border-top-color: var(--accent); 
    background-color: var(--ink);
    padding-left: 1rem;
    transition: background-color 0.25s ease, padding-left 0.25s ease, border-color 0.25 ease;
}
.project-card:hover .project-title { 
    color: #F4F1EC; 
}

.project-card:hover .project-desc {
  color: rgba(244, 241, 236, 0.65);
}

.project-card:hover .project-number {
    color: #F4F1EC;
}

.project-meta { display: flex; flex-direction: column; gap: 0.4rem; }
.project-number { 
    font-size: 1.5rem; 
    font-weight: bolder;
    letter-spacing: 0.1em; 
    color: var(--ink-light); 
}

.project-year { 
    font-size: 1.1rem; 
    color: var(--ink-light); 
}

.project-title {
  font-family: var(--font-serif);
  font-size: 1.4rem;
  line-height: 1.1;
  margin-bottom: 0.5rem;
  transition: color 0.2s;
}

.project-desc {
  font-size: 0.9rem;
  line-height: 1.7;
  color: var(--ink-mid);
  margin-bottom: 0.8rem;
}

.project-tags { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* ── REVEAL ANIMATION ───────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible { opacity: 1; transform: translateY(0); }

/* ── FOOTER ─────────────────────────────────────────────────── */
.site-footer {
  border-top: 1px solid var(--ink-xlight);
  padding: 2rem var(--page-pad-x);
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.site-footer p {
  font-size: 0.62rem;
  letter-spacing: 0.1em;
  color: var(--ink-light);
  text-transform: uppercase;
}
.site-footer a { color: var(--ink-mid); transition: color 0.2s; }
.site-footer a:hover { color: var(--accent); }

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 768px) {
  :root { --page-pad-x: 1.25rem; }
  .nav-links { gap: 1.2rem; }
  .nav-links a { font-size: 0.62rem; }
  .project-card { grid-template-columns: 1fr; gap: 0.75rem; }
}