/* =============================================
   TMF PORTFOLIO — STYLESHEET
   Editorial / Cool / Grid
============================================= */

:root {
  --canvas:    #F7F6F3;
  --ink:       #111110;
  --ink-mid:   #555552;
  --cobalt:    #4A6FA5;
  --slate:     #8FA8C8;
  --fog:       #E8EDF2;
  --rule:      #DCDBD7;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-ui:      'DM Sans', system-ui, sans-serif;

  --nav-h: 64px;
  --gap:   2px;
  --cols:  3;
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

body {
  background: var(--canvas);
  color: var(--ink);
  font-family: var(--font-ui);
  font-weight: 300;
}

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

/* ── NAV ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  padding: 0 40px;
  background: var(--canvas);
  border-bottom: 1px solid var(--rule);
}

.nav-name {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  color: var(--ink);
  transition: color 0.2s;
}

.nav-name:hover { color: var(--cobalt); }

.nav-links {
  list-style: none;
  display: flex;
  gap: 36px;
}

.nav-links a {
  font-size: 0.78rem;
  font-weight: 400;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-mid);
  transition: color 0.2s;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--cobalt);
  border-bottom-color: var(--cobalt);
}

/* ── SITE HEADER ── */
.site-header {
  padding: 72px 40px 56px;
  border-bottom: 1px solid var(--rule);
}

.header-eyebrow {
  font-size: 0.72rem;
  font-weight: 400;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--slate);
  margin-bottom: 20px;
}

.header-headline {
  font-family: var(--font-display);
  font-size: clamp(3rem, 6vw, 5.5rem);
  font-weight: 300;
  line-height: 1.08;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.header-headline em {
  font-style: italic;
  color: var(--cobalt);
}

/* ── FILTER BAR ── */
.filter-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 16px 40px;
  border-bottom: 1px solid var(--rule);
}

.filter-label {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--slate);
  margin-right: 12px;
}

.filter-btn {
  background: none;
  border: 1px solid transparent;
  padding: 5px 14px;
  font-family: var(--font-ui);
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-mid);
  cursor: pointer;
  border-radius: 2px;
  transition: all 0.2s;
}

.filter-btn:hover {
  color: var(--cobalt);
  border-color: var(--fog);
  background: var(--fog);
}

.filter-btn.active {
  color: var(--cobalt);
  border-color: var(--cobalt);
  background: transparent;
}

/* ── PROJECT GRID ── */
.grid {
  display: grid;
  grid-template-columns: repeat(var(--cols), 1fr);
  gap: var(--gap);
  padding: var(--gap);
}

/* ── TILE ── */
.tile {
  position: relative;
  background: #e0ddd8;
  overflow: hidden;
}

.tile-link {
  display: block;
}

.tile-img-wrap {
  position: relative;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.tile-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.55s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.tile:hover .tile-img {
  transform: scale(1.04);
}

/* overlay */
.tile-overlay {
  position: absolute;
  inset: 0;
  background: rgba(74, 111, 165, 0.88);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 28px;
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.35s ease, transform 0.35s ease;
}

.tile:hover .tile-overlay {
  opacity: 1;
  transform: translateY(0);
}

.overlay-category {
  font-size: 0.65rem;
  font-weight: 500;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 8px;
}

.overlay-title {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 400;
  color: #fff;
  line-height: 1.1;
  margin-bottom: 8px;
}

.overlay-desc {
  font-size: 0.82rem;
  font-weight: 300;
  color: rgba(255,255,255,0.82);
  line-height: 1.5;
  margin-bottom: 16px;
}

.overlay-cta {
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #fff;
  border-bottom: 1px solid rgba(255,255,255,0.5);
  padding-bottom: 2px;
  align-self: flex-start;
}

/* tile meta — below image */
.tile-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: var(--canvas);
  border-top: 1px solid var(--rule);
}

.tile-brand {
  font-size: 0.78rem;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: 0.02em;
}

.tile-year {
  font-size: 0.72rem;
  font-weight: 300;
  color: var(--slate);
  letter-spacing: 0.06em;
}

/* hidden tiles (filtered out) */
.tile.hidden {
  display: none;
}

/* ── FOOTER ── */
.footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 28px 40px;
  margin-top: var(--gap);
  border-top: 1px solid var(--rule);
  flex-wrap: wrap;
  gap: 12px;
}

.footer-name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.footer-copy {
  font-size: 0.75rem;
  font-weight: 300;
  color: var(--ink-mid);
  letter-spacing: 0.06em;
}

.footer-email {
  font-size: 0.75rem;
  color: var(--cobalt);
  letter-spacing: 0.06em;
  transition: opacity 0.2s;
}

.footer-email:hover { opacity: 0.7; }

/* ── RESPONSIVE ── */
@media (max-width: 900px) {
  :root { --cols: 2; }
  .site-header { padding: 48px 24px 40px; }
  .nav { padding: 0 24px; }
  .filter-bar { padding: 14px 24px; }
  .footer { padding: 24px; }
  .grid { padding: var(--gap); }
}

@media (max-width: 560px) {
  :root { --cols: 1; }
  .header-headline { font-size: 2.6rem; }
  .nav-links { gap: 20px; }
}

/* ── REDUCED MOTION ── */
@media (prefers-reduced-motion: reduce) {
  .tile-img, .tile-overlay { transition: none; }
}