/* =========================================================
   Tran + Thomas Design Studio
   Blog — archive + single post
   ========================================================= */

/* ---------- Page header ---------- */
.blog-head {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(3.5rem, 8vw, 6rem) var(--gutter) clamp(1.25rem, 3vw, 2rem);
  text-align: center;
}
.blog-head__eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 0.72rem;
  color: var(--accent);
  margin: 0 0 1rem;
}
.blog-head__title {
  font-family: var(--font-display);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: clamp(1.8rem, 5vw, 3rem);
  line-height: 1.15;
  color: var(--black);
  margin: 0 0 1rem;
}
.blog-head__lead {
  max-width: 60ch;
  margin: 0 auto;
  color: var(--body);
}

/* ---------- Archive grid ---------- */
/* ---------- Category filter ---------- */
.blog-filter {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(0.5rem, 2vw, 1rem) var(--gutter) 0;
}
.blog-filter__btn {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.66rem;
  color: var(--ink);
  background: none;
  border: 1px solid var(--line);
  padding: 0.5rem 1.15rem;
  border-radius: 999px;
  cursor: pointer;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease;
}
.blog-filter__btn:hover:not(.is-active) { border-color: var(--accent); color: var(--accent); }
.blog-filter__btn.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }

.blog-grid {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.5rem) var(--gutter) clamp(4rem, 9vw, 7rem);
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(2rem, 4vw, 3.25rem) clamp(1.25rem, 3vw, 2.25rem);
}
.post-card.is-hidden { display: none; }
.post-card {
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
/* order: image, title, then meta (category · date) below the title */
.post-card__media   { order: 0; }
.post-card__title   { order: 1; }
.post-card__meta    { order: 2; }
.post-card__excerpt { order: 3; }
.post-card__more    { order: 4; }
.post-card__media {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: 12px;
  overflow: hidden;
  margin-bottom: 1.25rem;
  background: var(--bg-soft);
}
.post-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.7s cubic-bezier(0.22, 1, 0.36, 1);
}
.post-card:hover .post-card__media img,
.post-card:focus-visible .post-card__media img { transform: scale(1.05); }
/* bottom fade + "Read Article" overlay */
.post-card__veil {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 55%;
  background: linear-gradient(to top, rgba(17, 17, 17, 0.66) 0%, rgba(17, 17, 17, 0) 100%);
  opacity: 0;
  transition: opacity 0.4s ease;
}
.post-card__cta {
  position: absolute;
  left: 0;
  bottom: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: clamp(0.9rem, 2vw, 1.2rem);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.72rem;
  color: #fff;
  opacity: 0;
  transform: translateY(8px);
  transition: opacity 0.4s ease, transform 0.4s ease;
}
.post-card__cta span { color: var(--accent); }
.post-card:hover .post-card__veil,
.post-card:focus-visible .post-card__veil { opacity: 1; }
.post-card:hover .post-card__cta,
.post-card:focus-visible .post-card__cta { opacity: 1; transform: none; }
.post-card__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 0.7rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.68rem;
  color: var(--muted);
  margin: 0 0 0.95rem;
}
.post-card__cat { color: var(--accent); }
.post-card__dot { color: var(--line); }
.post-card__title {
  font-family: var(--font-display);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: clamp(1.1rem, 2vw, 1.32rem);
  line-height: 1.3;
  color: var(--black);
  margin: 0 0 0.5rem;
}
.post-card:hover .post-card__title,
.post-card:focus-visible .post-card__title { color: var(--accent); }
.post-card__excerpt {
  margin: 0 0 1.1rem;
  font-size: 0.98rem;
  line-height: 1.65;
  color: var(--body);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.post-card__more {
  margin-top: auto;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  color: var(--ink);
}
.post-card__more span {
  color: var(--accent);
  display: inline-block;
  transition: transform 0.3s ease;
}
.post-card:hover .post-card__more span,
.post-card:focus-visible .post-card__more span { transform: translateX(4px); }
.post-card:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 4px; }

/* ---------- Single post ---------- */
.post__hero {
  width: 100%;
  height: clamp(320px, 52vh, 580px);
  overflow: hidden;
  background: var(--bg-soft);
}
.post__hero img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}
.post__header {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4rem) var(--gutter) clamp(1rem, 3vw, 1.75rem);
  text-align: center;
}
.post__meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 0.5rem 0.7rem;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: 0.7rem;
  color: var(--muted);
  margin: 0 0 1.1rem;
}
.post__meta .post-card__cat { color: var(--accent); }
.post__meta .post-card__dot { color: var(--line); }
.post__title {
  font-family: var(--font-display);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: clamp(1.65rem, 4vw, 2.7rem);
  line-height: 1.18;
  color: var(--black);
  margin: 0;
}
.post__rule {
  width: 54px;
  height: 2px;
  background: var(--accent);
  border: 0;
  margin: clamp(1.5rem, 4vw, 2.25rem) auto 0;
}
.post__body {
  max-width: 720px;
  margin: 0 auto;
  padding: clamp(1.75rem, 5vw, 3rem) var(--gutter) clamp(2.5rem, 6vw, 4rem);
}
.post__body p {
  margin: 0 0 1.5rem;
  font-size: 1.08rem;
  line-height: 1.85;
  color: var(--body);
}
.post__body p:last-child { margin-bottom: 0; }

/* ---------- Related articles ---------- */
.related {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(1rem, 3vw, 2rem) var(--gutter) clamp(1rem, 3vw, 1.5rem);
}
.related__title {
  font-family: var(--font-display);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--black);
  text-align: center;
  margin: 0 0 clamp(1.75rem, 4vw, 2.5rem);
}
.related__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: clamp(1.5rem, 4vw, 2.5rem) clamp(1.25rem, 3vw, 2.25rem);
}

/* ---------- Author bio ---------- */
.author {
  max-width: 820px;
  margin: 0 auto;
  padding: clamp(1.5rem, 4vw, 2.5rem) var(--gutter) 0;
}
.author__inner {
  display: flex;
  align-items: flex-start;
  gap: clamp(1.25rem, 3vw, 2rem);
  background: var(--bg-soft);
  border-radius: 14px;
  padding: clamp(1.5rem, 4vw, 2.25rem);
}
.author__photo {
  flex: 0 0 auto;
  width: 108px;
  height: 108px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top;
}
.author__eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.24em;
  font-size: 0.66rem;
  color: var(--accent);
  margin: 0 0 0.4rem;
}
.author__name {
  font-family: var(--font-display);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  font-size: clamp(1.2rem, 2.4vw, 1.5rem);
  color: var(--black);
  margin: 0;
}
.author__role {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.72rem;
  color: var(--muted);
  margin: 0.3rem 0 0.9rem;
}
.author__bio {
  margin: 0 0 1.4rem;
  font-size: 1rem;
  line-height: 1.7;
  color: var(--body);
}

/* ---------- Newsletter ---------- */
.newsletter {
  background: var(--bg-soft);
  margin-top: clamp(2.5rem, 6vw, 4rem);
}
.newsletter__inner {
  max-width: 680px;
  margin: 0 auto;
  padding: clamp(2.5rem, 6vw, 4rem) var(--gutter);
  text-align: center;
}
.newsletter__eyebrow {
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.26em;
  font-size: 0.7rem;
  color: var(--accent);
  margin: 0 0 0.9rem;
}
.newsletter__title {
  font-family: var(--font-display);
  font-weight: 300;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: clamp(1.4rem, 3.5vw, 2.1rem);
  line-height: 1.2;
  color: var(--black);
  margin: 0 0 0.85rem;
}
.newsletter__lead {
  max-width: 48ch;
  margin: 0 auto;
  color: var(--body);
}
.newsletter__form {
  display: flex;
  gap: 0.6rem;
  max-width: 460px;
  margin: clamp(1.4rem, 3vw, 2rem) auto 0;
}
.newsletter__input {
  flex: 1;
  min-width: 0;
  font-family: var(--font-body);
  font-size: 0.98rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.95rem 1.1rem;
}
.newsletter__input::placeholder { color: var(--muted); }
.newsletter__input:focus { outline: none; border-color: var(--accent); }
.newsletter__form .btn { flex: 0 0 auto; cursor: pointer; }
.newsletter__msg {
  margin: clamp(1.4rem, 3vw, 2rem) auto 0;
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.8rem;
  color: var(--accent);
}

/* ---------- Back link ---------- */
.blog-back {
  text-align: center;
  padding: 0 var(--gutter) clamp(3.5rem, 7vw, 5rem);
}
.blog-back a {
  font-family: var(--font-display);
  text-transform: uppercase;
  text-decoration: none;
  letter-spacing: 0.24em;
  font-size: 0.74rem;
  color: var(--muted);
  border-bottom: 1px solid transparent;
  padding-bottom: 3px;
}
.blog-back a:hover { color: var(--ink); border-color: var(--ink); }

/* ---------- Responsive ---------- */
@media (max-width: 600px) {
  .blog-grid,
  .related__grid { grid-template-columns: 1fr; }
  .author__inner { flex-direction: column; align-items: center; text-align: center; }
  .newsletter__form { flex-direction: column; }
}
@media (prefers-reduced-motion: reduce) {
  .post-card__media img { transition: none; }
}