/* ─── FILTER BAR ─────────────────────────────────────────────── */
.filter-bar {
  padding: 32px 0; border-bottom: 1px solid var(--border);
  position: sticky; top: var(--nav-h);
  background: rgba(250,250,250,0.92); backdrop-filter: blur(12px); z-index: 10;
}
.filter-inner { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.filter-btn {
  display: inline-flex; align-items: center; gap: 6px; padding: 7px 16px;
  border: 1.5px solid var(--border-dark); border-radius: 100px;
  background: transparent; color: var(--muted);
  font-family: var(--sans); font-size: 12.5px; font-weight: 600;
  letter-spacing: -0.01em; cursor: pointer; white-space: nowrap;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}
.filter-btn:hover { border-color: var(--ink); color: var(--ink); }
.filter-btn.active { border-color: var(--ink); background: var(--ink); color: #fff; }
.filter-count { font-size: 10px; font-weight: 700; background: rgba(255,255,255,0.15); padding: 1px 5px; border-radius: 10px; line-height: 1.6; }
.filter-btn:not(.active) .filter-count { background: var(--border); color: var(--muted); }

/* ─── PROJECTS GRID ─────────────────────────────────────────── */
.projects-section { padding: 64px 0 var(--section-pad); }
.projects-count { font-size: 12px; font-weight: 600; color: var(--muted); letter-spacing: 0.04em; text-transform: uppercase; margin-bottom: 36px; }
.projects-count span { color: var(--ink); }
.projects-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
@media(max-width:960px){ .projects-grid { grid-template-columns: repeat(2, 1fr); } }
@media(max-width:560px){ .projects-grid { grid-template-columns: 1fr; } }
.project-card[data-hidden="true"] { display: none; }
.project-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: 12px;
  overflow: hidden; transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
  cursor: default; display: flex; flex-direction: column;
}
.project-card:hover { border-color: var(--border-dark); transform: translateY(-4px); box-shadow: 0 12px 40px rgba(0,0,0,0.07); }
.project-visual { min-height: 180px; display: grid; place-items: center; position: relative; overflow: hidden; flex-shrink: 0; }
.project-visual-img {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; display: block;
  transition: transform 0.4s ease;
}
.project-card:hover .project-visual-img { transform: scale(1.04); }
.project-visual-inner {
  width: 72%; aspect-ratio: 16/9; border-radius: 8px;
  background: rgba(255,255,255,0.06); border: 1px solid rgba(255,255,255,0.12);
  display: grid; place-items: center; position: relative; overflow: hidden;
}
.project-visual-label { font-size: 10px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase; color: rgba(255,255,255,0.35); }
.project-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.project-meta { display: flex; align-items: center; gap: 8px; margin-bottom: 12px; flex-wrap: wrap; }
.project-type { font-size: 10px; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; padding: 3px 9px; border-radius: 4px; }
.type-webapp   { color: #2563EB; background: #EFF6FF; }
.type-profile  { color: #7C3AED; background: #F5F3FF; }
.type-catalog  { color: #059669; background: #ECFDF5; }
.type-optimize { color: #D97706; background: #FFFBEB; }
.project-year { font-size: 11px; color: var(--muted); font-weight: 500; }
.project-title { font-family: var(--serif); font-size: 19px; font-weight: 400; color: var(--ink); letter-spacing: -0.02em; line-height: 1.25; margin-bottom: 8px; }
.project-desc { font-size: 13px; color: var(--muted); line-height: 1.65; margin-bottom: 16px; flex: 1; }
.project-result { display: flex; align-items: center; gap: 6px; font-size: 12px; color: #059669; font-weight: 700; padding-top: 14px; border-top: 1px solid var(--border); margin-top: auto; }
.project-result::before { content: '↑'; font-size: 14px; }
.project-link { display: inline-flex; align-items: center; gap: 6px; font-size: 12px; font-weight: 700; color: var(--accent); text-decoration: none; margin-top: 12px; transition: gap .2s, opacity .2s; }
.project-link:hover { gap: 10px; opacity: 0.8; }

/* ─── EMPTY STATE ─────────────────────────────────────────────── */
.empty-state { display: none; text-align: center; padding: 80px 0; grid-column: 1 / -1; }
.empty-state.visible { display: block; }
.empty-icon { width: 48px; height: 48px; border: 1.5px solid var(--border); border-radius: 12px; display: grid; place-items: center; margin: 0 auto 16px; color: var(--muted); }
.empty-title { font-size: 16px; font-weight: 700; color: var(--ink); margin-bottom: 8px; }
.empty-desc { font-size: 13.5px; color: var(--muted); }