/* ==========================================================================
   President Ziaur Rahman — Historical Archive
   Stylesheet: layout, typography, components, motion
   ========================================================================== */

:root {
  --color-primary: #0f172a;
  --color-accent: #c8a96b;
  --color-bg: #f8fafc;
  --color-text: #1e293b;
  --color-text-secondary: #475569;
  --color-muted: #e2e8f0;
  --color-white: #ffffff;
  --font-heading: "Playfair Display", Georgia, serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --shadow-soft: 0 18px 45px rgba(15, 23, 42, 0.12);
  --shadow-card: 0 12px 30px rgba(15, 23, 42, 0.08);
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --header-height: 72px;
  --transition: 0.35s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.65;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
  text-underline-offset: 3px;
}

button {
  font-family: inherit;
  cursor: pointer;
}

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

.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  z-index: 10000;
  padding: 0.75rem 1rem;
  background: var(--color-accent);
  color: var(--color-primary);
  font-weight: 600;
}

.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

.container {
  width: min(1120px, 92vw);
  margin-inline: auto;
}

/* --------------------------------------------------------------------------
   Page loader
   -------------------------------------------------------------------------- */
.page-loader {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: grid;
  place-items: center;
  background: var(--color-primary);
  transition: opacity 0.6s ease, visibility 0.6s ease;
}

.page-loader.is-hidden {
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
}

.page-loader__inner {
  text-align: center;
  color: var(--color-bg);
}

.page-loader__mark {
  display: inline-block;
  width: 48px;
  height: 48px;
  border: 2px solid rgba(200, 169, 107, 0.35);
  border-top-color: var(--color-accent);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
}

.page-loader__text {
  margin-top: 1rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  font-size: 0.7rem;
  color: rgba(248, 250, 252, 0.75);
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* --------------------------------------------------------------------------
   Header / Navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: box-shadow var(--transition), background var(--transition);
}

.site-header.is-scrolled {
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

.nav {
  background: rgba(248, 250, 252, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(15, 23, 42, 0.06);
  transition: background var(--transition), border-color var(--transition);
}

.site-header.is-scrolled .nav {
  background: rgba(255, 255, 255, 0.96);
  border-bottom-color: rgba(15, 23, 42, 0.08);
}

.nav__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--header-height);
  gap: 1rem;
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.05rem;
  letter-spacing: 0.02em;
  color: var(--color-primary);
  white-space: nowrap;
}

.nav__logo:hover {
  text-decoration: none;
  color: var(--color-accent);
}

.nav__logo:hover .nav__logo-img {
  border-color: rgba(200, 169, 107, 0.55);
  box-shadow: 0 0 0 2px rgba(200, 169, 107, 0.2);
}

.nav__logo-img {
  flex-shrink: 0;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  object-position: 28% 22%;
  border: 2px solid rgba(15, 23, 42, 0.12);
  box-shadow: 0 2px 8px rgba(15, 23, 42, 0.12);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.nav__logo-text {
  line-height: 1.2;
}

.nav__toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0;
  border: none;
  background: transparent;
  border-radius: var(--radius-sm);
}

.nav__toggle:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.nav__toggle-bar {
  display: block;
  height: 2px;
  width: 22px;
  background: var(--color-primary);
  margin-inline: auto;
  transition: transform var(--transition), opacity var(--transition);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(2) {
  opacity: 0;
}

.nav__toggle[aria-expanded="true"] .nav__toggle-bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.nav__menu {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: flex-end;
  gap: 0.35rem 1.25rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav__link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  letter-spacing: 0.03em;
  text-transform: uppercase;
  position: relative;
  padding-block: 0.25rem;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition);
}

.nav__link:hover {
  color: var(--color-primary);
  text-decoration: none;
}

.nav__link:hover::after {
  transform: scaleX(1);
}

@media (max-width: 960px) {
  .nav__toggle {
    display: flex;
  }

  .nav__menu {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0.75rem 1.25rem 1.25rem;
    background: rgba(255, 255, 255, 0.98);
    border-bottom: 1px solid rgba(15, 23, 42, 0.08);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    pointer-events: none;
    transition: max-height 0.45s ease, opacity 0.35s ease;
  }

  .nav__menu.is-open {
    max-height: 480px;
    opacity: 1;
    pointer-events: auto;
  }

  .nav__link {
    display: block;
    padding: 0.65rem 0;
    border-bottom: 1px solid rgba(148, 163, 184, 0.25);
  }

  .nav__link::after {
    display: none;
  }
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid;
  align-items: center;
  color: var(--color-bg);
  overflow: hidden;
}

.hero__media {
  position: absolute;
  inset: 0;
  background-color: #0b1224;
  background-image:
    linear-gradient(120deg, rgba(15, 23, 42, 0.2) 0%, transparent 45%),
    radial-gradient(circle at 20% 30%, rgba(200, 169, 107, 0.12), transparent 50%),
    repeating-linear-gradient(
      -12deg,
      rgba(255, 255, 255, 0.03) 0 2px,
      transparent 2px 14px
    );
  transform: scale(1.02);
  animation: heroKen 22s ease-in-out infinite alternate;
}

@keyframes heroKen {
  from {
    transform: scale(1.02) translate3d(0, 0, 0);
  }
  to {
    transform: scale(1.08) translate3d(-1.5%, 1%, 0);
  }
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(15, 23, 42, 0.55) 0%,
    rgba(15, 23, 42, 0.82) 55%,
    rgba(15, 23, 42, 0.95) 100%
  );
}

.hero__content {
  position: relative;
  z-index: 1;
  padding-block: calc(var(--header-height) + 3rem) 5rem;
}

.hero__eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

.hero__title {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: clamp(2.5rem, 5vw, 3.75rem);
  line-height: 1.12;
  margin: 0 0 1rem;
  max-width: 14ch;
}

.hero__subtitle {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: rgba(248, 250, 252, 0.88);
  margin: 0 0 1.25rem;
  max-width: 36ch;
}

.hero__lead {
  margin: 0 0 2rem;
  max-width: 52ch;
  color: rgba(226, 232, 240, 0.9);
  font-size: 0.98rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.85rem 1.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: transform var(--transition), background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
}

.btn:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.btn--primary {
  background: var(--color-accent);
  color: var(--color-primary);
  box-shadow: 0 10px 25px rgba(200, 169, 107, 0.35);
}

.btn--primary:hover {
  transform: translateY(-2px);
  text-decoration: none;
  box-shadow: 0 14px 32px rgba(200, 169, 107, 0.45);
}

.btn--ghost {
  background: transparent;
  color: var(--color-bg);
  border-color: rgba(248, 250, 252, 0.35);
}

.btn--ghost:hover {
  background: rgba(248, 250, 252, 0.08);
  text-decoration: none;
  border-color: rgba(248, 250, 252, 0.55);
}

.btn--secondary {
  background: var(--color-primary);
  color: var(--color-bg);
}

.btn--secondary:hover {
  transform: translateY(-2px);
  text-decoration: none;
  background: #1e293b;
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  color: rgba(248, 250, 252, 0.65);
  font-size: 0.7rem;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  animation: floatY 3s ease-in-out infinite;
}

.hero__scroll:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.hero__scroll-line {
  width: 1px;
  height: 48px;
  background: linear-gradient(to bottom, var(--color-accent), transparent);
}

@keyframes floatY {
  0%,
  100% {
    transform: translate(-50%, 0);
  }
  50% {
    transform: translate(-50%, 6px);
  }
}

/* Hero entrance */
.hero .reveal {
  opacity: 0;
  transform: translateY(18px);
  animation: heroFade 1.1s ease forwards;
}

.hero .reveal:nth-child(1) {
  animation-delay: 0.15s;
}
.hero .reveal:nth-child(2) {
  animation-delay: 0.35s;
}
.hero .reveal:nth-child(3) {
  animation-delay: 0.5s;
}
.hero .reveal:nth-child(4) {
  animation-delay: 0.65s;
}
.hero .reveal:nth-child(5) {
  animation-delay: 0.8s;
}

@keyframes heroFade {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
.section {
  padding-block: clamp(4rem, 8vw, 6.5rem);
}

.section--light {
  background: var(--color-bg);
}

.section--dark {
  background: var(--color-primary);
  color: var(--color-bg);
}

.section--muted {
  background: #eef2f7;
}

.section__header {
  max-width: 640px;
  margin-bottom: 2.75rem;
}

.section__header--on-dark .section__intro,
.section__header--on-dark .section__label {
  color: rgba(248, 250, 252, 0.78);
}

.section__label {
  display: inline-block;
  font-size: 0.72rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.65rem;
}

.section--dark .section__label {
  color: rgba(200, 169, 107, 0.95);
}

.section__title {
  font-family: var(--font-heading);
  font-size: clamp(1.85rem, 3vw, 2.35rem);
  margin: 0 0 0.75rem;
  line-height: 1.2;
}

.section__intro {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 1rem;
}

.section__header--on-dark .section__title {
  color: var(--color-bg);
}

.section__actions {
  margin-top: 2.5rem;
  text-align: center;
}

/* Scroll reveal default */
.reveal[data-reveal] {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s ease, transform 0.75s ease;
}

.reveal[data-reveal].is-visible {
  opacity: 1;
  transform: translateY(0);
}

.hero .reveal[data-reveal] {
  /* Hero uses keyframe animation instead */
  opacity: 1;
  transform: none;
  transition: none;
}

/* Biography card */
.bio-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(15, 23, 42, 0.06);
  overflow: hidden;
}

.bio-card__grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 0;
}

@media (max-width: 880px) {
  .bio-card__grid {
    grid-template-columns: 1fr;
  }
}

.bio-card__visual {
  background: linear-gradient(145deg, #0f172a 0%, #1e293b 100%);
  padding: 2rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.bio-card__figure {
  margin: 0;
  width: 100%;
}

.bio-card__photo {
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  object-position: center 20%;
  border-radius: var(--radius-md);
  border: 1px solid rgba(200, 169, 107, 0.35);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
}

.bio-card__caption {
  margin-top: 0.75rem;
  font-size: 0.78rem;
  color: rgba(248, 250, 252, 0.55);
  line-height: 1.4;
}

.bio-card__body {
  padding: clamp(1.75rem, 4vw, 2.75rem);
}

.bio-card__heading {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  margin: 0 0 1rem;
}

.bio-card__text {
  color: var(--color-text-secondary);
  margin: 0 0 1rem;
}

.bio-card__body .btn {
  margin-top: 0.5rem;
}

/* Timeline */
.timeline-section {
  position: relative;
}

.timeline {
  position: relative;
  display: grid;
  gap: 1.75rem;
  padding-left: 1.5rem;
}

@media (min-width: 720px) {
  .timeline {
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    padding-left: 0;
    align-items: stretch;
  }

  .timeline__rail {
    position: absolute;
    top: 42px;
    left: 4%;
    right: 4%;
    height: 2px;
    background: linear-gradient(90deg, transparent, rgba(200, 169, 107, 0.45), transparent);
    pointer-events: none;
  }
}

.timeline__item {
  position: relative;
}

.timeline__card {
  background: rgba(15, 23, 42, 0.55);
  border: 1px solid rgba(200, 169, 107, 0.22);
  border-radius: var(--radius-md);
  padding: 1.5rem 1.35rem;
  height: 100%;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition), background var(--transition);
}

.timeline__card:hover {
  transform: translateY(-6px);
  border-color: rgba(200, 169, 107, 0.55);
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  background: rgba(15, 23, 42, 0.75);
}

.timeline__year {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-accent);
  margin-bottom: 0.35rem;
}

.timeline__heading {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  margin: 0 0 0.5rem;
  color: var(--color-bg);
}

.timeline__text {
  margin: 0;
  font-size: 0.92rem;
  color: rgba(226, 232, 240, 0.85);
  line-height: 1.55;
}

@media (max-width: 719px) {
  .timeline__rail {
    position: absolute;
    left: 0.4rem;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(180deg, rgba(200, 169, 107, 0.2), rgba(200, 169, 107, 0.55), rgba(200, 169, 107, 0.2));
  }

  .timeline__item::before {
    content: "";
    position: absolute;
    left: -1.1rem;
    top: 1.35rem;
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 0 4px rgba(200, 169, 107, 0.2);
  }
}

@media (min-width: 720px) {
  .timeline__item::before {
    content: "";
    display: block;
    width: 12px;
    height: 12px;
    margin: 0 auto 0.85rem;
    border-radius: 50%;
    background: var(--color-accent);
    box-shadow: 0 0 0 5px rgba(200, 169, 107, 0.18);
    position: relative;
    z-index: 1;
  }
}

/* Contributions */
.contrib-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.25rem;
}

@media (max-width: 1024px) {
  .contrib-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 560px) {
  .contrib-grid {
    grid-template-columns: 1fr;
  }
}

.contrib-card {
  background: var(--color-white);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: var(--shadow-card);
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.contrib-card:hover {
  transform: translateY(-8px);
  box-shadow: 0 22px 50px rgba(15, 23, 42, 0.12);
  border-color: rgba(200, 169, 107, 0.35);
}

.contrib-card__icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(200, 169, 107, 0.12);
  color: var(--color-primary);
  margin-bottom: 1rem;
}

.contrib-card__icon svg {
  width: 26px;
  height: 26px;
}

.contrib-card__title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  margin: 0 0 0.5rem;
}

.contrib-card__text {
  margin: 0;
  font-size: 0.92rem;
  color: var(--color-text-secondary);
  line-height: 1.55;
}

/* Gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}

@media (max-width: 800px) {
  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.gallery-item {
  position: relative;
  border: none;
  padding: 0;
  background: transparent;
  text-align: left;
  border-radius: var(--radius-md);
  overflow: hidden;
  cursor: pointer;
}

.gallery-item:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

.gallery-item__frame {
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  aspect-ratio: 4 / 3;
  min-height: clamp(140px, 28vw, 220px);
  overflow: hidden;
  background: linear-gradient(180deg, #f1f5f9 0%, #e2e8f0 100%);
  padding: 0.35rem;
}

.gallery-item__img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  transition: transform 0.65s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover .gallery-item__img,
.gallery-item:focus-visible .gallery-item__img {
  transform: scale(1.04);
}

.gallery-item__label {
  display: block;
  margin-top: 0.65rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

/* Quote slider */
.quotes-section {
  position: relative;
}

.quote-slider {
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.quote-slider__viewport {
  min-height: 180px;
  position: relative;
}

.quote-slide {
  margin: 0;
  padding: 2rem 1.25rem;
  border-left: 3px solid var(--color-accent);
  background: rgba(15, 23, 42, 0.35);
  border-radius: var(--radius-md);
  opacity: 0;
  transform: translateX(16px);
  transition: opacity 0.55s ease, transform 0.55s ease;
  position: absolute;
  inset: 0;
}

.quote-slide.is-active {
  opacity: 1;
  transform: translateX(0);
  position: relative;
}

.quote-slide__text {
  font-family: var(--font-heading);
  font-style: italic;
  font-size: clamp(1.15rem, 2.4vw, 1.45rem);
  line-height: 1.55;
  color: rgba(248, 250, 252, 0.95);
  margin: 0 0 1rem;
}

.quote-slide__cite {
  font-size: 0.85rem;
  color: rgba(200, 169, 107, 0.95);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.quote-slider__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.quote-nav {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(248, 250, 252, 0.25);
  background: transparent;
  color: var(--color-bg);
  font-size: 1.5rem;
  line-height: 1;
  transition: background var(--transition), border-color var(--transition);
}

.quote-nav:hover {
  background: rgba(248, 250, 252, 0.08);
  border-color: rgba(248, 250, 252, 0.45);
}

.quote-nav:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.quote-dots {
  display: flex;
  gap: 0.5rem;
}

.quote-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  border: none;
  padding: 0;
  background: rgba(248, 250, 252, 0.25);
  cursor: pointer;
  transition: transform var(--transition), background var(--transition);
}

.quote-dot.is-active {
  background: var(--color-accent);
  transform: scale(1.25);
}

.quote-dot:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Resources */
.resource-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.75rem;
  max-width: 640px;
}

.resource-link {
  display: block;
  padding: 1rem 1.25rem;
  background: var(--color-white);
  border-radius: var(--radius-md);
  border: 1px solid rgba(15, 23, 42, 0.06);
  font-weight: 500;
  color: var(--color-primary);
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.resource-link:hover {
  text-decoration: none;
  border-color: rgba(200, 169, 107, 0.45);
  box-shadow: var(--shadow-card);
  transform: translateY(-2px);
}

/* Disclaimer */
.disclaimer-card {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 2rem 2.25rem;
  border: 1px solid rgba(15, 23, 42, 0.06);
  box-shadow: var(--shadow-card);
  max-width: 720px;
}

.disclaimer-card__text {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  margin: 0 0 0.75rem;
  color: var(--color-primary);
}

.disclaimer-card__sub {
  margin: 0;
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

/* Modal */
.modal[hidden] {
  display: none;
}

.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: grid;
  place-items: center;
  padding: 1.5rem;
}

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.72);
  backdrop-filter: blur(4px);
}

.modal__dialog {
  position: relative;
  z-index: 1;
  width: min(920px, 96vw);
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.35);
  animation: modalIn 0.45s ease;
}

/* Gallery lightbox: large popup, full photo visible */
.modal--lightbox {
  padding: clamp(0.35rem, 1.5vw, 0.75rem);
  place-items: center;
}

.modal--lightbox .modal__dialog {
  width: min(1600px, 99vw);
  max-width: 100%;
  max-height: min(96vh, 96dvh);
  display: flex;
  flex-direction: column;
  padding: clamp(0.5rem, 2vw, 1.25rem) clamp(0.5rem, 2vw, 1.5rem) 1rem;
  overflow: hidden;
}

@keyframes modalIn {
  from {
    opacity: 0;
    transform: translateY(12px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.modal__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(15, 23, 42, 0.06);
  font-size: 1.5rem;
  line-height: 1;
  color: var(--color-primary);
  transition: background var(--transition);
}

.modal__close:hover {
  background: rgba(15, 23, 42, 0.12);
}

.modal__preview {
  margin-top: 0.5rem;
  border-radius: var(--radius-md);
  background: #f1f5f9;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 12rem;
  max-height: min(78vh, 680px);
  padding: 0.35rem;
}

.modal__image {
  max-width: 100%;
  max-height: min(78vh, 680px);
  width: auto;
  height: auto;
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.modal__image:not([src]),
.modal__image[src=""] {
  display: none;
}

.modal__caption {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  text-align: center;
}

.modal--lightbox .modal__close {
  top: 0.5rem;
  right: 0.5rem;
  z-index: 2;
  background: rgba(255, 255, 255, 0.95);
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.2);
}

.modal--lightbox .modal__close:hover {
  background: #fff;
}

.modal--lightbox .modal__preview {
  flex: 1 1 auto;
  min-height: 0;
  margin-top: 0.25rem;
  max-height: min(calc(96vh - 5.5rem), calc(96dvh - 5.5rem));
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0.35rem;
  background: #0f172a;
  border-radius: var(--radius-md);
}

.modal--lightbox .modal__image {
  display: block;
  margin-inline: auto;
  max-width: 100%;
  width: auto;
  height: auto;
  max-height: min(88vh, 88dvh, calc(96dvh - 7rem));
  object-fit: contain;
  border-radius: var(--radius-sm);
}

.modal--lightbox .modal__caption {
  flex-shrink: 0;
  margin-top: 0.75rem;
  margin-bottom: 0;
  padding-inline: 0.25rem;
  max-height: 4.5rem;
  overflow-y: auto;
  font-size: 0.92rem;
  line-height: 1.45;
  color: var(--color-text-secondary);
  text-align: center;
}

/* Back to top */
.back-top {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 1500;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 1px solid rgba(15, 23, 42, 0.12);
  background: var(--color-white);
  color: var(--color-primary);
  font-size: 1.25rem;
  box-shadow: var(--shadow-card);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition), background var(--transition);
}

.back-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.back-top:hover {
  background: var(--color-accent);
  color: var(--color-primary);
  border-color: transparent;
}

.back-top:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Footer */
.site-footer {
  background: #0b1224;
  color: rgba(248, 250, 252, 0.85);
  padding-top: 3.5rem;
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.2fr repeat(3, 1fr);
  gap: 2rem;
  padding-bottom: 2.5rem;
}

@media (max-width: 900px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
  }
}

.site-footer__title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  margin: 0 0 0.35rem;
  color: var(--color-bg);
}

.site-footer__tag {
  margin: 0;
  font-size: 0.9rem;
  color: rgba(248, 250, 252, 0.6);
}

.site-footer__heading {
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin: 0 0 1rem;
}

.site-footer__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.5rem;
  font-size: 0.92rem;
}

.site-footer__list a {
  color: rgba(248, 250, 252, 0.75);
}

.site-footer__list a:hover {
  color: var(--color-accent);
}

.site-footer__social {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.65rem;
}

.social-icon {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(248, 250, 252, 0.2);
  font-size: 0.75rem;
  font-weight: 700;
  color: rgba(248, 250, 252, 0.85);
  transition: border-color var(--transition), background var(--transition);
}

.social-icon:hover {
  text-decoration: none;
  border-color: var(--color-accent);
  background: rgba(200, 169, 107, 0.12);
}

.site-footer__bottom {
  border-top: 1px solid rgba(248, 250, 252, 0.08);
  padding-block: 1.25rem;
}

.site-footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  font-size: 0.82rem;
  color: rgba(248, 250, 252, 0.55);
}

.site-footer__copy {
  margin: 0;
}

.site-footer__note {
  margin: 0;
}