/* =========================================================
   TheWorldTraveler — Shared Design System
   site.css v1.0
   Applied to: index, blog, post, categories
   ========================================================= */

/* ── Design Tokens ──────────────────────────────────────── */
:root {
  --c-primary:      #1a1a2e;      /* deep navy */
  --c-accent:       #e94560;      /* coral red */
  --c-accent-2:     #ff6b6b;      /* lighter coral */
  --c-accent-grad:  linear-gradient(135deg, #e94560, #ff6b6b);
  --c-surface:      #ffffff;
  --c-surface-2:    #f8f9fc;
  --c-surface-3:    #eef2ff;
  --c-border:       #e8ecf0;
  --c-text:         #1e2128;
  --c-text-muted:   #6b7280;
  --c-text-light:   #9ca3af;
  --c-dark-grad:    linear-gradient(135deg, #1a1a2e 0%, #16213e 100%);

  --r-sm:  8px;
  --r-md:  14px;
  --r-lg:  20px;
  --r-xl:  28px;
  --r-pill: 50px;

  --shadow-xs:  0 1px 4px rgba(0,0,0,.06);
  --shadow-sm:  0 2px 10px rgba(0,0,0,.07);
  --shadow-md:  0 8px 32px rgba(0,0,0,.10);
  --shadow-lg:  0 20px 60px rgba(0,0,0,.14);
  --shadow-accent: 0 8px 28px rgba(233,69,96,.30);

  --ease: cubic-bezier(.4,0,.2,1);
  --transition: all .28s var(--ease);
}

/* ── Base ───────────────────────────────────────────────── */
html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--c-text);
  background: var(--c-surface-2);
  -webkit-font-smoothing: antialiased;
}

a { text-decoration: none; color: inherit; }
img { max-width: 100%; }

/* ── Shared Utilities ───────────────────────────────────── */
.twt-accent       { color: var(--c-accent); }
.twt-surface      { background: var(--c-surface); }
.twt-surface-2    { background: var(--c-surface-2); }
.twt-pill         { border-radius: var(--r-pill) !important; }
.twt-shadow-md    { box-shadow: var(--shadow-md); }

/* ── Navbar Enhancement ─────────────────────────────────── */
.navbar.navbar-transparent {
  transition: background .35s var(--ease), box-shadow .35s var(--ease);
}

/* Scrolled state — added via JS */
.navbar.scrolled {
  background: rgba(26,26,46,.96) !important;
  backdrop-filter: blur(14px) !important;
  box-shadow: 0 2px 20px rgba(0,0,0,.18) !important;
}

.navbar-brand {
  font-size: .95rem !important;
  font-weight: 800 !important;
  letter-spacing: -.01em;
  color: #fff !important;
}

/* ── Page Hero ──────────────────────────────────────────── */
.twt-hero {
  position: relative;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

.twt-hero .mask {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, rgba(10,10,30,.72) 0%, rgba(10,10,30,.45) 100%);
}

/* ── Floating Card (pulled up over hero) ────────────────── */
.twt-floating-card {
  border-radius: var(--r-xl) !important;
  box-shadow: var(--shadow-lg) !important;
  border: 1px solid var(--c-border) !important;
  background: var(--c-surface) !important;
  overflow: hidden;
  margin-top: -4rem;
  position: relative;
  z-index: 2;
}

/* ── Section Label ──────────────────────────────────────── */
.twt-section-label {
  display: inline-block;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-accent);
  background: rgba(233,69,96,.08);
  padding: .3rem .9rem;
  border-radius: var(--r-pill);
  border: 1px solid rgba(233,69,96,.2);
  margin-bottom: .75rem;
}

/* ── Section Title ──────────────────────────────────────── */
.twt-section-title {
  font-size: 1.65rem;
  font-weight: 800;
  color: var(--c-text);
  letter-spacing: -.03em;
  position: relative;
  display: inline-block;
  padding-bottom: .55rem;
  margin-bottom: 0;
}

.twt-section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 44px;
  height: 3px;
  background: var(--c-accent-grad);
  border-radius: 2px;
}

/* ── Post Card (background image style) ─────────────────── */
.twt-post-card {
  display: block;
  border-radius: var(--r-lg) !important;
  overflow: hidden;
  position: relative;
  height: 280px;
  text-decoration: none !important;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  border: none !important;
}

.twt-post-card:hover {
  transform: translateY(-6px) scale(1.015);
  box-shadow: var(--shadow-lg);
}

.twt-post-card .twt-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform .45s var(--ease);
}

.twt-post-card:hover .twt-card-bg {
  transform: scale(1.07);
}

.twt-post-card .twt-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 20%, rgba(10,10,20,.5) 60%, rgba(10,10,20,.92) 100%);
  transition: var(--transition);
  border-radius: var(--r-lg);
}

.twt-post-card:hover .twt-card-overlay {
  background: linear-gradient(180deg, transparent 10%, rgba(10,10,20,.6) 55%, rgba(10,10,20,.97) 100%);
}

.twt-post-card .twt-card-body {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  align-items: flex-end;
  padding: 1.2rem !important;
}

.twt-post-card .twt-card-content { width: 100%; }

.twt-post-card .twt-cat-badge {
  display: inline-block;
  font-size: .66rem;
  font-weight: 700;
  letter-spacing: .09em;
  text-transform: uppercase;
  color: rgba(255,255,255,.85);
  background: rgba(255,255,255,.15);
  backdrop-filter: blur(6px);
  padding: .22rem .7rem;
  border-radius: var(--r-pill);
  border: 1px solid rgba(255,255,255,.22);
  margin-bottom: .5rem;
}

.twt-post-card .twt-read-time {
  font-size: .66rem;
  color: rgba(255,255,255,.6);
  font-weight: 500;
}

.twt-post-card .twt-card-title {
  font-size: .9rem;
  font-weight: 700;
  line-height: 1.35;
  color: #fff !important;
  margin: 0 0 .5rem;
  text-shadow: 0 1px 4px rgba(0,0,0,.4);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.twt-post-card .twt-read-pill {
  display: inline-block;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
  background: rgba(255,255,255,.13);
  backdrop-filter: blur(6px);
  padding: .25rem .8rem;
  border-radius: var(--r-pill);
  border: 1px solid rgba(255,255,255,.22);
  transition: var(--transition);
  opacity: 0;
  transform: translateY(5px);
}

.twt-post-card:hover .twt-read-pill {
  opacity: 1;
  transform: translateY(0);
  background: rgba(233,69,96,.9);
  border-color: transparent;
  color: #fff;
}

/* ── Horizontal Post Card ───────────────────────────────── */
.twt-hcard {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  padding: 1rem 0;
  border-bottom: 1px solid var(--c-border);
  text-decoration: none !important;
  transition: var(--transition);
}

.twt-hcard:last-child { border-bottom: none; }

.twt-hcard:hover { transform: translateX(3px); }

.twt-hcard .twt-hcard-img {
  width: 80px;
  height: 70px;
  border-radius: var(--r-sm);
  object-fit: cover;
  flex-shrink: 0;
  transition: var(--transition);
}

.twt-hcard:hover .twt-hcard-img { transform: scale(1.04); }

.twt-hcard .twt-hcard-title {
  font-size: .85rem;
  font-weight: 600;
  color: var(--c-text);
  line-height: 1.35;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: var(--transition);
}

.twt-hcard:hover .twt-hcard-title { color: var(--c-accent); }

.twt-hcard .twt-hcard-meta {
  font-size: .72rem;
  color: var(--c-text-light);
  margin-top: .3rem;
}

/* ── Category Card ──────────────────────────────────────── */
.twt-cat-card {
  display: block;
  border-radius: var(--r-lg);
  overflow: hidden;
  position: relative;
  height: 220px;
  text-decoration: none !important;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
}

.twt-cat-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}

.twt-cat-card .twt-card-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform .4s var(--ease);
}

.twt-cat-card:hover .twt-card-bg { transform: scale(1.06); }

.twt-cat-card .twt-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 30%, rgba(10,10,20,.8) 100%);
}

.twt-cat-card .twt-cat-body {
  position: relative;
  z-index: 2;
  height: 100%;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.4rem;
}

.twt-cat-card .twt-cat-icon {
  font-size: 2rem;
  margin-bottom: .4rem;
  display: block;
  opacity: .9;
}

.twt-cat-card .twt-cat-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: .25rem;
}

.twt-cat-card .twt-cat-count {
  font-size: .76rem;
  color: rgba(255,255,255,.65);
  font-weight: 500;
}

/* ── Filter Tabs ─────────────────────────────────────────── */
.twt-filter-tab {
  display: inline-flex;
  align-items: center;
  gap: .35rem;
  padding: .4rem 1.1rem;
  border-radius: var(--r-pill);
  font-size: .78rem;
  font-weight: 600;
  border: 1.5px solid var(--c-border);
  color: var(--c-text-muted);
  background: var(--c-surface);
  text-decoration: none !important;
  transition: var(--transition);
  cursor: pointer;
}

.twt-filter-tab:hover,
.twt-filter-tab.active {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff !important;
  box-shadow: 0 4px 14px rgba(233,69,96,.28);
  transform: translateY(-1px);
}

/* ── Pagination ─────────────────────────────────────────── */
.twt-pagination {
  gap: .35rem;
  flex-wrap: wrap;
}

.twt-pagination .page-item .page-link {
  border-radius: var(--r-pill) !important;
  border: 1.5px solid var(--c-border) !important;
  color: var(--c-text-muted) !important;
  font-size: .82rem;
  font-weight: 600;
  padding: .45rem .85rem !important;
  background: var(--c-surface) !important;
  transition: var(--transition);
  box-shadow: var(--shadow-xs);
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 38px;
}

.twt-pagination .page-item .page-link:hover {
  background: var(--c-surface-2) !important;
  border-color: var(--c-accent) !important;
  color: var(--c-accent) !important;
  transform: translateY(-1px);
}

.twt-pagination .page-item.active .page-link {
  background: var(--c-accent-grad) !important;
  border-color: transparent !important;
  color: #fff !important;
  box-shadow: var(--shadow-accent);
  transform: translateY(-1px);
}

.twt-pagination .page-item.disabled .page-link {
  opacity: .35 !important;
  cursor: not-allowed !important;
  transform: none !important;
  box-shadow: none !important;
}

.twt-pagination .page-item .page-link .material-symbols-rounded {
  font-size: 1.1rem;
  line-height: 1;
}

/* ── Newsletter / CTA Strip ─────────────────────────────── */
.twt-newsletter {
  background: var(--c-dark-grad);
  border-radius: var(--r-lg);
  padding: 2.5rem 2rem;
}

.twt-newsletter input[type="email"] {
  background: rgba(255,255,255,.1) !important;
  border: 1px solid rgba(255,255,255,.2) !important;
  color: #fff !important;
  border-radius: var(--r-pill) !important;
  padding: .65rem 1.3rem !important;
  font-size: .88rem;
  backdrop-filter: blur(4px);
  flex: 1;
  min-width: 0;
}

.twt-newsletter input::placeholder { color: rgba(255,255,255,.5) !important; }

.twt-newsletter .twt-nl-btn {
  border-radius: var(--r-pill);
  background: var(--c-accent-grad);
  color: #fff;
  font-weight: 700;
  font-size: .85rem;
  border: none;
  padding: .65rem 1.6rem;
  white-space: nowrap;
  box-shadow: var(--shadow-accent);
  transition: var(--transition);
  cursor: pointer;
}

.twt-newsletter .twt-nl-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 32px rgba(233,69,96,.45);
}

/* ── Shared Footer ──────────────────────────────────────── */
.twt-footer {
  background: var(--c-surface);
  border-top: 1px solid var(--c-border);
  padding: 3rem 0;
}

.twt-footer .twt-footer-brand {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--c-text);
  letter-spacing: -.02em;
}

.twt-footer .twt-footer-tagline {
  font-size: .85rem;
  color: var(--c-text-muted);
  margin-top: .4rem;
}

.twt-footer a {
  color: var(--c-text-muted);
  font-size: .85rem;
  transition: var(--transition);
}

.twt-footer a:hover { color: var(--c-accent); }

.twt-footer .twt-social-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--c-surface-2);
  color: var(--c-text-muted);
  border: 1px solid var(--c-border);
  font-size: .9rem;
  transition: var(--transition);
  text-decoration: none;
}

.twt-footer .twt-social-btn:hover {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(233,69,96,.3);
}

.twt-footer .twt-footer-link {
  color: var(--c-text-muted);
  font-size: .85rem;
  font-weight: 500;
  text-decoration: none;
  transition: var(--transition);
}

.twt-footer .twt-footer-link:hover { color: var(--c-accent); }

.twt-footer .twt-copyright {
  font-size: .8rem;
  color: var(--c-text-light);
}

/* ── Entrance Animations ────────────────────────────────── */
@keyframes twt-fadeInUp {
  from { opacity: 0; transform: translateY(22px); }
  to   { opacity: 1; transform: translateY(0);    }
}

@keyframes twt-fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.twt-animate { animation: twt-fadeInUp .55s var(--ease) both; }
.twt-animate-d1 { animation-delay: .06s; }
.twt-animate-d2 { animation-delay: .12s; }
.twt-animate-d3 { animation-delay: .18s; }
.twt-animate-d4 { animation-delay: .24s; }
.twt-animate-d5 { animation-delay: .30s; }
.twt-animate-d6 { animation-delay: .36s; }
.twt-animate-d7 { animation-delay: .42s; }
.twt-animate-d8 { animation-delay: .48s; }
.twt-animate-d9 { animation-delay: .54s; }
.twt-animate-d10 { animation-delay: .60s; }
.twt-animate-d11 { animation-delay: .66s; }
.twt-animate-d12 { animation-delay: .72s; }

/* ── Navbar sticky JS helper ────────────────────────────── */
/* (tiny script added inline in each page to add .scrolled class) */

/* ── Post page — white background for cinematic article layout ── */
.twt-post-page { background: var(--c-surface) !important; }

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 991.98px) {
  .twt-post-card { height: 240px; }
  .twt-cat-card  { height: 190px; }
  .twt-floating-card { margin-top: -2rem; }
}

@media (max-width: 767.98px) {
  .twt-post-card  { height: 210px; }
  .twt-cat-card   { height: 170px; }
  .twt-newsletter { padding: 1.8rem 1.2rem; }
  .twt-section-title { font-size: 1.4rem; }
}