/* ==========================================================================
   projects.css - projects archive page
   Builds on the tokens and components defined in index.css
   ========================================================================== */

/* ---------- Page head ---------- */
.projects-hero {
  padding-top: calc(var(--nav-h) + clamp(3rem, 8vh, 5.5rem));
  padding-bottom: clamp(1.6rem, 4vw, 2.8rem);
  position: relative;
}
.projects-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(700px 420px at 80% 0%, rgba(91, 78, 240, 0.1), transparent 62%),
    radial-gradient(480px 360px at 5% 70%, rgba(255, 188, 143, 0.08), transparent 60%);
}
.projects-hero h1 {
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  font-weight: 750;
  letter-spacing: -0.03em;
  line-height: 1.04;
  margin-bottom: 1rem;
}
.grad-text {
  background: linear-gradient(110deg, var(--accent) 10%, var(--violet) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.projects-hero-sub {
  color: var(--ink-2);
  font-size: 1.08rem;
  max-width: 52ch;
  margin: 0;
}

/* ---------- Filter bar ---------- */
.filter-bar {
  padding-block: 0.9rem;
}
.filter-inner {
  display: flex;
  align-items: center;
}
.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
  padding: 0.55rem;
  border-radius: 999px;
  background: var(--surface-glass);
  border: 1px solid rgba(255, 255, 255, 0.65);
  box-shadow: var(--shadow-glass);
  backdrop-filter: blur(16px) saturate(160%);
  -webkit-backdrop-filter: blur(16px) saturate(160%);
}
.filter-pill {
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--ink-2);
  transition: background-color 0.25s var(--ease-out), color 0.25s, box-shadow 0.25s var(--ease-out);
  white-space: nowrap;
}
.filter-pill span {
  font-size: 0.76rem;
  font-weight: 600;
  color: var(--ink-3);
  margin-left: 0.25rem;
}
.filter-pill:hover { color: var(--ink); }
.filter-pill.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-deep));
  color: #fff;
  box-shadow: 0 10px 24px -12px rgba(91, 78, 240, 0.55);
}
.filter-pill.active span { color: rgba(255, 255, 255, 0.75); }

/* Mobile: dropdown selector */
.filter-select-wrap {
  display: none;
  position: relative;
  width: 100%;
}
.filter-select-wrap::after {
  content: "";
  position: absolute;
  right: 1.1rem;
  top: 50%;
  width: 9px;
  height: 9px;
  border-right: 2px solid var(--ink-2);
  border-bottom: 2px solid var(--ink-2);
  transform: translateY(-65%) rotate(45deg);
  pointer-events: none;
}
#filter-select {
  width: 100%;
  appearance: none;
  -webkit-appearance: none;
  font-family: inherit;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  padding: 0.95rem 2.8rem 0.95rem 1.2rem;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--surface-glass);
  box-shadow: var(--shadow-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}
#filter-select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* ---------- Grid ---------- */
.projects-section {
  padding-block: clamp(1.8rem, 4vw, 3rem) clamp(2.5rem, 5vw, 4rem);
}
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}

/* ---------- Cards ---------- */
.pcard {
  display: flex;
  flex-direction: column;
  border-radius: var(--r-lg);
  background: var(--surface);
  border: 1px solid var(--line);
  box-shadow: 0 10px 30px -22px rgba(64, 56, 160, 0.2);
  overflow: hidden;
  transition: box-shadow 0.35s var(--ease-out), border-color 0.35s;
  transform-style: preserve-3d;
}
.pcard:hover {
  box-shadow: var(--shadow-lift);
  border-color: var(--accent-soft-2);
}
.pcard-media {
  display: block;
  overflow: hidden;
  background: var(--surface-deep);
}
.pcard-media img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  transition: transform 0.6s var(--ease-out);
}
.pcard:hover .pcard-media img { transform: scale(1.045); }

.pcard-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.65rem;
  padding: 1.35rem 1.45rem 1.5rem;
  flex: 1;
}
.pcard-top {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem;
  width: 100%;
}
.pcard-top h3 {
  font-size: 1.18rem;
  margin: 0;
  flex: 1;
  min-width: 0;
}
.pcard-links {
  display: flex;
  gap: 0.4rem;
}
.pcard-links .icon-btn {
  width: 36px;
  height: 36px;
}
.pcard-links .icon-btn svg { width: 16px; height: 16px; }

.pcard-desc {
  color: var(--ink-2);
  font-size: 0.93rem;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.pcard-desc.expanded {
  display: block;
  -webkit-line-clamp: none;
}

.read-more {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent-deep);
  padding: 0;
}
.read-more:hover { color: var(--accent); }

.pcard-metrics {
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--accent-deep);
  margin: 0;
}

.grade-badge {
  display: inline-block;
  padding: 0.28rem 0.7rem;
  border-radius: 999px;
  background: var(--accent-soft);
  border: 1px solid var(--accent-soft-2);
  color: var(--accent-deep);
  font-size: 0.76rem;
  font-weight: 700;
  white-space: nowrap;
}
.grade-badge.gold {
  background: #fdf3e3;
  border-color: #f3dfb8;
  color: #8a6116;
}

.pcard .chips { margin-top: auto; }

.pcard-awarded {
  background: linear-gradient(160deg, #fdf8ef 0%, var(--surface) 55%);
}

/* ---------- Page CTA ---------- */
.projects-cta { padding-top: 0; }
.cta-panel {
  text-align: center;
  padding: clamp(2.4rem, 6vw, 4rem) clamp(1.4rem, 4vw, 3rem);
  border-radius: var(--r-lg);
  background:
    radial-gradient(560px 280px at 50% 0%, rgba(91, 78, 240, 0.1), transparent 65%),
    var(--surface);
  border: 1px solid var(--accent-soft-2);
  box-shadow: var(--shadow-soft);
}
.cta-panel h2 { margin-bottom: 0.5rem; }
.cta-panel p {
  color: var(--ink-2);
  max-width: 46ch;
  margin: 0 auto 1.6rem;
}

/* ---------- Responsive ---------- */
@media (max-width: 1100px) {
  .projects-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .filter-pills { display: none; }
  .filter-select-wrap { display: block; }
  .filter-bar { top: calc(var(--nav-h) + 14px); }
}

@media (max-width: 680px) {
  .projects-grid { grid-template-columns: 1fr; }
}