/* ═══════════════════════════════════════════
   PROJECTS PAGE — projects-page.css
   Only page-level layout; card styles live in projects.css
   ═══════════════════════════════════════════ */

/* ── Back link ── */
body {
    overflow-x: hidden;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-muted);
    text-decoration: none;
    transition: color 0.2s, gap 0.2s;
}

.back-link:hover {
    color: var(--text-bright);
    gap: 12px;
}

body.light .back-link {
    color: #64748b;
}

body.light .back-link:hover {
    color: #0f172a;
}

.project-body {
    padding-block: 120px 120px;
}

/* ── Page header ── */
.projects-page-header {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1.25rem;
    padding: 3rem 1.5rem 3rem;
    max-width: 1440px;
    margin: 0 auto;
}

.projects-page-title {
    font-size: clamp(2.4rem, 6vw, 4rem);
    font-weight: 1100;
    line-height: 1.08;
    letter-spacing: -0.03em;
    color: var(--text-bright);
}

.projects-page-desc {
    font-size: 1rem;
    color: var(--text-muted);
    max-width: 700px;
    line-height: 1.7;
}

body.light .projects-page-title {
    color: #0f172a;
}

body.light .projects-page-desc {
    color: #64748b;
}

/* ── Filter tabs ── */
.filter-tabs {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.filter-tab {
    padding: 8px 20px;
    border-radius: var(--radius-pill);
    border: 1px solid var(--border-glass);
    background: transparent;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, color 0.2s;
}

.filter-tab:hover {
    color: var(--text-bright);
    background: rgba(255, 255, 255, 0.06);
}

.filter-tab.active {
    background: linear-gradient(135deg, var(--blue-500), var(--purple));
    border-color: transparent;
    color: #fff;
}

body.light .filter-tab {
    color: #64748b;
    border-color: rgba(0, 0, 0, 0.1);
}

body.light .filter-tab:hover {
    color: #0f172a;
    background: rgba(0, 0, 0, 0.04);
}

body.light .filter-tab.active {
    color: #fff;
    border-color: transparent;
}

body.light .filter-tab.active:hover {
    color: #fff;
    border-color: transparent;
    background: linear-gradient(135deg, var(--blue-500), var(--purple));
}

/* ── Full grid (3 cols on desktop) ── */
.projects-full-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.25rem;
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

@media (min-width: 640px) {
    .projects-full-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .projects-full-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* card hidden state for filter */
.project-card.hidden {
    display: none;
}

/* empty state */
.projects-empty {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.95rem;
    padding: 3rem 0;
}