/* ============================================================
   Components — buttons, cards, filter chips, gallery, hero
   ============================================================ */

/* ----------  Buttons  ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--size-2);
  padding: .75rem 1.5rem;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: .95rem;
  transition: transform var(--duration) var(--easing),
              box-shadow var(--duration) var(--easing),
              background var(--duration) var(--easing),
              color var(--duration) var(--easing);
  cursor: pointer;
  border: 1.5px solid transparent;
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-2));
  color: #fff;
  box-shadow: 0 8px 20px rgba(108, 99, 255, .25);
}

.btn--primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 14px 30px rgba(108, 99, 255, .35);
  color: #fff;
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  background: var(--color-surface-alt);
  border-color: var(--color-accent-1);
  color: var(--color-accent-1);
}

.btn--sm {
  padding: .5rem 1rem;
  font-size: .85rem;
}

/* ----------  Hero  ---------- */

.hero {
  position: relative;
  padding: var(--size-10) var(--size-5) var(--size-8);
  overflow: hidden;
  background:
    radial-gradient(900px 500px at 80% 10%, rgba(108, 99, 255, .12), transparent 60%),
    radial-gradient(700px 500px at 10% 90%, rgba(7, 198, 172, .08), transparent 60%);
}

.hero__inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: var(--size-8);
  align-items: center;
}

.hero__eyebrow {
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .8rem;
  font-weight: 600;
  color: var(--color-accent-1);
  margin-bottom: var(--size-3);
}

.hero__title {
  font-family: var(--font-serif);
  font-size: clamp(2.25rem, 5.5vw, 3.75rem);
  line-height: 1.05;
  margin-bottom: var(--size-3);
}

.hero__tagline {
  font-size: clamp(1.05rem, 1.6vw, 1.25rem);
  color: var(--color-text-muted);
  max-width: 38ch;
  margin-bottom: var(--size-5);
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--size-3);
  margin-bottom: var(--size-5);
  font-size: .9rem;
  color: var(--color-text-subtle);
}

.hero__availability {
  display: inline-flex;
  align-items: center;
  gap: var(--size-2);
  padding: .35rem .75rem;
  background: rgba(52, 211, 153, .12);
  border: 1px solid rgba(52, 211, 153, .3);
  color: #047857;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: .85rem;
}

@media (prefers-color-scheme: dark) {
  .hero__availability { color: #6ee7b7; }
}

.hero__availability::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(52, 211, 153, .25);
}

.hero__actions {
  display: flex;
  gap: var(--size-3);
  flex-wrap: wrap;
}

.hero__portrait {
  width: 320px;
  max-width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  transform: rotate(-2deg);
  transition: transform var(--duration) var(--easing);
}

.hero__portrait:hover {
  transform: rotate(0) scale(1.02);
}

@media (max-width: 820px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: left;
  }
  .hero__portrait {
    width: 220px;
    transform: none;
  }
}

/* ----------  "Now" strip  ---------- */

.now-strip {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--size-5);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--size-4);
  align-items: center;
  background: var(--color-surface-alt);
  border-radius: var(--radius-md);
  padding: var(--size-4) var(--size-5);
  margin-top: var(--size-6);
}

.now-strip__badge {
  background: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-2));
  color: #fff;
  padding: .25rem .75rem;
  border-radius: var(--radius-pill);
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.now-strip__text {
  color: var(--color-text-muted);
  font-size: .95rem;
}

/* ----------  Section header  ---------- */

.section-header {
  max-width: var(--max-width);
  margin: 0 auto var(--size-6);
  padding: 0 var(--size-5);
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--size-4);
}

.section-header__title {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  margin-bottom: var(--size-1);
}

.section-header__subtitle {
  color: var(--color-text-subtle);
  font-size: .95rem;
}

/* ----------  Filter chips  ---------- */

.filter-chips {
  max-width: var(--max-width);
  margin: 0 auto var(--size-5);
  padding: 0 var(--size-5);
  display: flex;
  flex-wrap: wrap;
  gap: var(--size-2);
}

.chip {
  padding: .45rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--color-surface);
  border: 1.5px solid var(--color-border);
  color: var(--color-text-muted);
  font-size: .9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--duration) var(--easing);
}

.chip:hover {
  border-color: var(--color-accent-1);
  color: var(--color-accent-1);
}

.chip[aria-pressed="true"] {
  background: linear-gradient(135deg, var(--color-accent-1), var(--color-accent-2));
  border-color: transparent;
  color: #fff;
  box-shadow: 0 6px 16px rgba(108, 99, 255, .25);
}

/* ----------  Gallery (Hannah-style)  ---------- */

.gallery {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--size-5);
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: var(--size-5);
}

.card {
  position: relative;
  display: block;
  aspect-ratio: 1 / 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--color-surface-alt);
  box-shadow: var(--shadow-sm);
  transition: transform var(--duration) var(--easing),
              box-shadow var(--duration) var(--easing);
  text-decoration: none;
  color: inherit;
  isolation: isolate;
}

.card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.card__img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  transition: transform var(--duration-slow) var(--easing),
              filter var(--duration) var(--easing);
}

.card:hover .card__img {
  transform: scale(1.03);
  filter: saturate(1.1);
}

/* Placeholder when image is missing */
.card__img--placeholder {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  background:
    linear-gradient(135deg, rgba(108, 99, 255, .25), rgba(7, 198, 172, .2)),
    repeating-linear-gradient(
      45deg,
      rgba(255, 255, 255, .04) 0 12px,
      rgba(0, 0, 0, .02) 12px 24px
    );
  color: rgba(255, 255, 255, .9);
  font-family: var(--font-mono);
  font-size: .8rem;
  letter-spacing: .04em;
  padding: var(--size-4);
  text-align: center;
}

.card__overlay {
  position: absolute;
  inset: auto 0 0 0;
  padding: var(--size-5) var(--size-4) var(--size-4);
  background: linear-gradient(
    to top,
    rgba(15, 17, 23, .92) 0%,
    rgba(15, 17, 23, .75) 50%,
    rgba(15, 17, 23, 0) 100%
  );
  color: #fff;
  transform: translateY(8%);
  opacity: 0;
  transition: transform var(--duration) var(--easing),
              opacity var(--duration) var(--easing);
}

.card:hover .card__overlay,
.card:focus-visible .card__overlay {
  transform: translateY(0);
  opacity: 1;
}

.card__title {
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--size-1);
  color: #fff;
}

.card__tagline {
  font-size: .8rem;
  color: rgba(255, 255, 255, .8);
  font-family: var(--font-mono);
  letter-spacing: .02em;
}

.card__pin {
  position: absolute;
  top: var(--size-3);
  left: var(--size-3);
  background: rgba(255, 255, 255, .92);
  color: var(--color-text);
  padding: .15rem .55rem;
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  z-index: 2;
}

.card__external {
  position: absolute;
  top: var(--size-3);
  right: var(--size-3);
  width: 28px;
  height: 28px;
  display: grid;
  place-items: center;
  background: rgba(255, 255, 255, .92);
  color: var(--color-text);
  border-radius: 50%;
  font-size: .8rem;
  z-index: 2;
  opacity: 0;
  transform: scale(.85);
  transition: opacity var(--duration) var(--easing),
              transform var(--duration) var(--easing);
}

.card:hover .card__external {
  opacity: 1;
  transform: scale(1);
}

/* Mobile: keep captions visible so the page is usable without hover */
@media (max-width: 640px) {
  .card__overlay {
    transform: none;
    opacity: 1;
    background: linear-gradient(
      to top,
      rgba(15, 17, 23, .9) 0%,
      rgba(15, 17, 23, .6) 60%,
      rgba(15, 17, 23, 0) 100%
    );
  }
}

/* ----------  Featured publication banner  ---------- */

.publication-banner {
  max-width: var(--max-width);
  margin: var(--size-10) auto 0;
  padding: var(--size-5);
  background: linear-gradient(135deg,
    rgba(108, 99, 255, .08),
    rgba(7, 198, 172, .05));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: var(--size-5);
  align-items: center;
}

.publication-banner__icon {
  font-family: var(--font-serif);
  font-size: 2.5rem;
  line-height: 1;
  color: var(--color-accent-1);
}

.publication-banner__label {
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-accent-1);
  font-weight: 700;
}

.publication-banner__citation {
  color: var(--color-text);
  font-size: .95rem;
  line-height: 1.5;
  margin-top: var(--size-1);
}

@media (max-width: 720px) {
  .publication-banner {
    grid-template-columns: 1fr;
  }
}

/* ----------  About-preview block on home  ---------- */

.about-preview {
  max-width: var(--max-width);
  margin: var(--size-10) auto 0;
  padding: 0 var(--size-5);
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--size-6);
  align-items: center;
}

.about-preview img {
  width: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center top;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
}

@media (max-width: 720px) {
  .about-preview {
    grid-template-columns: 1fr;
    justify-items: center;
    text-align: center;
  }
  .about-preview img {
    width: clamp(180px, 60vw, 280px);
    aspect-ratio: 4 / 5;
    object-position: center top;
  }
}