/* ═══════════════════════════════════════════════════════════
   style.css — Astronomy Picture Gallery
   Dark-mode, space-themed with glassmorphism & micro-animations
   ═══════════════════════════════════════════════════════════ */

/* ── Design Tokens ─────────────────────────────────────── */
:root {
  /* Palette (Editorial Dark) */
  --clr-bg:           #0a0a0a;
  --clr-surface:      #111111;
  --clr-surface-alt:  #1a1a1a;
  --clr-border:       rgba(255, 255, 255, 0.2);
  --clr-border-hover: rgba(255, 255, 255, 0.4);

  --clr-text:         #F4F4F5;
  --clr-text-muted:   #A1A1AA;
  --clr-text-dim:     #71717A;

  --clr-accent:       #E4E4E7;
  --clr-accent-soft:  rgba(255, 255, 255, 0.05);
  --clr-accent-glow:  rgba(255, 255, 255, 0.1);

  --clr-cyan:         #ffffff;
  --clr-pink:         #ffffff;
  --clr-gold:         #ffffff;

  /* Gradients from design */
  --grad-1: linear-gradient(90deg, #9E6DFF, #5C72FF); /* Purple to Blue */
  --grad-2: linear-gradient(90deg, #00E5FF, #0072FF); /* Cyan to Blue */
  --grad-3: linear-gradient(90deg, #FFB347, #FF7B89); /* Orange to Pink */
  --grad-4: linear-gradient(90deg, #E248B5, #9E6DFF); /* Pink to Purple */

  /* Nebula blobs */
  --neb-1: rgba(124, 106, 255, 0.07);
  --neb-2: rgba(74, 224, 224, 0.05);
  --neb-3: rgba(224, 106, 175, 0.04);

  /* Typography */
  --ff-heading: 'Playfair Display', serif;
  --ff-body:    'Outfit', system-ui, sans-serif;

  /* Spacing */
  --sp-xs: 0.25rem;  --sp-sm: 0.5rem;
  --sp-md: 1rem;     --sp-lg: 1.5rem;
  --sp-xl: 2.5rem;   --sp-2xl: 4rem;

  /* Radii */
  --rad-sm: 8px;   --rad-md: 12px;
  --rad-lg: 16px;  --rad-xl: 24px;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 180ms;  --dur-med: 320ms;  --dur-slow: 600ms;

  /* Navbar height */
  --nav-h: 64px;
}

/* ── Reset ─────────────────────────────────────────────── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

body {
  font-family: var(--ff-body);
  color: var(--clr-text);
  background: var(--clr-bg);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

a { color: var(--clr-cyan); text-decoration: none; transition: color var(--dur-fast) var(--ease-out); }
a:hover { color: var(--clr-accent); }
img { display: block; max-width: 100%; }

/* ── Starfield Canvas ──────────────────────────────────── */
#starfield {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.nebula { display: none; }

@keyframes nebFloat1 { to { transform: translate(80px, 60px) scale(1.12); } }
@keyframes nebFloat2 { to { transform: translate(-60px, -50px) scale(1.08); } }
@keyframes nebFloat3 { to { transform: translate(-40px, 30px) scale(0.92); } }

/* ── Stats Row Component (from design) ─────────────────── */
.stats-row {
  display: flex;
  align-items: center;
  gap: var(--sp-lg);
  margin-top: var(--sp-lg);
  margin-bottom: var(--sp-xl);
}

.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
}

.stat-item:not(:last-child)::after {
  content: '';
  position: absolute;
  right: calc(var(--sp-lg) * -0.5);
  top: 10%;
  height: 80%;
  width: 1px;
  background: var(--clr-border-hover);
}

.stat-value {
  font-family: var(--ff-heading);
  font-size: 1.4rem;
  font-weight: 400;
  color: #fff;
}

.stat-label {
  font-size: 0.75rem;
  color: var(--clr-text-muted);
}

/* ── Progress Bars (from design) ───────────────────────── */
.prog-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: var(--sp-xl);
}
.prog-item {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
}
.prog-label {
  width: 90px;
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  text-align: right;
}
.prog-bar-wrap {
  flex: 1;
  height: 4px;
  background: var(--clr-surface-alt);
  border-radius: 4px;
  overflow: hidden;
}
.prog-bar {
  height: 100%;
  border-radius: 4px;
}
.prog-bar--1 { background: var(--grad-1); width: 85%; }
.prog-bar--2 { background: var(--grad-2); width: 65%; }
.prog-bar--3 { background: var(--grad-3); width: 40%; }
.prog-bar--4 { background: var(--grad-4); width: 75%; }

/* ══════════════════════════════════════════════════════════
   TOP NAVIGATION BAR
   ══════════════════════════════════════════════════════════ */
#top-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
  background: var(--clr-bg);
  border-bottom: 1px dotted rgba(255, 255, 255, 0.06);
}

/* Brand */
.nav__brand {
  position: absolute;
  left: 0;
  display: flex; align-items: center; justify-content: center;
  width: 180px;
  height: 100%;

  flex-shrink: 0;
}

.nav__icon {
  font-size: 1.3rem;
  color: var(--clr-accent);
  animation: iconPulse 3s ease-in-out infinite;
}

@keyframes iconPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.55; transform: scale(1.25); }
}

.nav__logo {
  font-family: var(--ff-heading);
  font-size: 1.8rem;
  font-weight: 400;
  font-style: italic;
  color: var(--clr-text);
  letter-spacing: -0.02em;
}

.nav__center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav__right {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 180px;
  height: 100%;

}

.nav__link {
  font-family: var(--ff-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--clr-text);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Tabs */
.nav__tabs {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
}
.nav__tabs::-webkit-scrollbar { display: none; }

.nav__tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--ff-heading);
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  background: transparent;
  border: none;
  border-radius: 0;
  padding: 8px 16px;
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--dur-med) var(--ease-out);
  position: relative;
}

.nav__tab-icon {
  width: 16px; height: 16px; flex-shrink: 0;
  stroke-linecap: round; stroke-linejoin: round;
}

.nav__tab:hover {
  color: var(--clr-text);
  background: var(--clr-accent-soft);
}

.nav__tab.active {
  color: var(--clr-text);
  background: transparent;
}

.nav__tab.active::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 12px; right: 12px;
  height: 1px;
  background: transparent;
  border-bottom: 1px dotted var(--clr-text);
  animation: tabLine var(--dur-med) var(--ease-out);
}

@keyframes tabLine {
  from { transform: scaleX(0); }
  to   { transform: scaleX(1); }
}

.nav__spacer { display: none; }

/* ── Main content ──────────────────────────────────────── */
#main-content {
  position: relative;
  z-index: 10;
  margin-top: var(--nav-h);
  min-height: calc(100vh - var(--nav-h));
  padding: var(--sp-xl) var(--sp-lg) var(--sp-2xl);
  max-width: 1200px;
  margin-left: auto;
  margin-right: auto;
}

.hidden { display: none !important; }

/* ── Loader ────────────────────────────────────────────── */
.loader {
  display: flex; flex-direction: column; align-items: center; gap: var(--sp-lg);
  margin-top: 22vh;
}
.loader__ring {
  width: 48px; height: 48px; border-radius: 50%;
  border: 3px solid var(--clr-border);
  border-top-color: var(--clr-accent);
  animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.loader__text { font-size: 0.95rem; color: var(--clr-text-muted); letter-spacing: 0.04em; }

/* ── Error state ───────────────────────────────────────── */
.error-state {
  display: flex; flex-direction: column; align-items: center; gap: var(--sp-md);
  margin-top: 22vh; text-align: center;
}
.error-state__icon { font-size: 2.2rem; color: var(--clr-gold); }
.error-state__text { font-size: 1rem; color: var(--clr-text-muted); max-width: 400px; line-height: 1.6; }

/* Button base */
.btn {
  display: inline-flex; align-items: center; gap: var(--sp-sm);
  font-family: var(--ff-heading); font-size: 0.88rem; font-weight: 500;
  border: none; border-radius: var(--rad-md); cursor: pointer;
  transition: all var(--dur-med) var(--ease-out); user-select: none;
}
.btn--accent {
  padding: 6px 16px;
  font-size: 0.75rem;
  color: #000000;
  background: #ffffff;
  border: 1px solid #ffffff;
  border-radius: 2px;
  font-family: var(--ff-body);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.btn--accent:hover {
  background: transparent;
  color: #ffffff;
  transform: translateY(-1px);
}

.section {
  animation: sectionIn var(--dur-slow) var(--ease-out) both;
}
@keyframes sectionIn {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ══════════════════════════════════════════════════════════
   APOD SECTION — Picture of the Day
   ══════════════════════════════════════════════════════════ */
.apod {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: var(--sp-xl);
  max-width: 960px;
  margin: 0 auto;
  padding-top: var(--sp-xl);
}


.apod__subtitle {
  font-family: var(--ff-body);
  font-size: 0.85rem;
  color: var(--clr-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.2em;
  margin-bottom: calc(var(--sp-md) * -1);
}

.apod__figure {
  margin: 0; line-height: 0;
}

.apod__image-wrap {
  position: relative;
  overflow: hidden;
  background: transparent;
  border: 1px dotted var(--clr-border);
  padding: 8px;
}

.apod__image {
  width: 100%;
  height: auto;
  max-height: 560px;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out), opacity var(--dur-med) var(--ease-out);
}
.apod__image.loading { opacity: 0.25; filter: blur(6px); }
.apod__image-wrap:hover .apod__image { transform: scale(1.02); }

.apod__info {
  background: transparent;
  border: none;
  padding: 0;
  max-width: 700px;
}

.apod__date { display: none; }

.apod__title {
  font-family: var(--ff-heading);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 400;
  color: var(--clr-text);
  line-height: 1.15;
  margin-bottom: var(--sp-md);
}

.apod__copyright { display: none; }

.apod__description {
  font-size: 1.35rem;
  font-weight: 300;
  color: #D4D4D8;
  line-height: 1.8;
  max-width: 800px;
  margin: 0 auto;
}

/* ══════════════════════════════════════════════════════════
   CATEGORY GALLERY SECTION
   ══════════════════════════════════════════════════════════ */
.gallery-header {
  display: flex;
  align-items: baseline;
  gap: var(--sp-md);
  margin-bottom: var(--sp-xl);
}

.gallery-header__title {
  font-family: var(--ff-heading);
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 600;
  color: #fff;
  text-transform: capitalize;
}

.gallery-header__count {
  font-size: 0.82rem;
  color: var(--clr-text-dim);
}

/* Grid */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: var(--sp-2xl) var(--sp-lg);
}

/* Gallery card */
.gallery-card {
  position: relative;
  background: transparent;
  border: none;
  cursor: pointer;
  transition: all var(--dur-med) var(--ease-out);
  animation: cardPop var(--dur-slow) var(--ease-out) both;
}

.gallery-card:hover {
  transform: translateY(-4px);
}

@keyframes cardPop {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.gallery-card__image-wrap {
  overflow: hidden;
  height: 260px;
  background: transparent;
  border-radius: 4px;
}

.gallery-card__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--dur-slow) var(--ease-out);
}
.gallery-card:hover .gallery-card__image {
  transform: scale(1.05);
}

.gallery-card__body {
  padding: var(--sp-md) 0;
}

.gallery-card__title {
  font-family: var(--ff-heading);
  font-size: 1.25rem;
  font-weight: 400;
  color: #fff;
  line-height: 1.3;
  margin-bottom: var(--sp-xs);
}

.gallery-card__snippet {
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--clr-text-muted);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Staggered animation delays */
.gallery-card:nth-child(1) { animation-delay: 0ms; }
.gallery-card:nth-child(2) { animation-delay: 80ms; }
.gallery-card:nth-child(3) { animation-delay: 160ms; }
.gallery-card:nth-child(4) { animation-delay: 240ms; }
.gallery-card:nth-child(5) { animation-delay: 320ms; }

/* ── Skeleton loading cards ────────────────────────────── */
.gallery-card.skeleton { pointer-events: none; cursor: default; }
.gallery-card.skeleton .gallery-card__image-wrap {
  height: 210px;
}

.skeleton__shimmer {
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.03) 0%,
    rgba(255, 255, 255, 0.07) 40%,
    rgba(255, 255, 255, 0.03) 80%
  );
  background-size: 300% 100%;
  animation: shimmer 1.6s ease-in-out infinite;
}

.skeleton__line {
  height: 12px;
  border-radius: 6px;
  margin-bottom: 10px;
  background: linear-gradient(
    90deg,
    rgba(255, 255, 255, 0.04) 0%,
    rgba(255, 255, 255, 0.08) 40%,
    rgba(255, 255, 255, 0.04) 80%
  );
  background-size: 300% 100%;
  animation: shimmer 1.6s ease-in-out infinite;
}
.skeleton__line--title { width: 70%; height: 16px; margin-bottom: 14px; }
.skeleton__line--short { width: 45%; }

@keyframes shimmer {
  0%   { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ══════════════════════════════════════════════════════════
   LIGHTBOX / DETAIL MODAL
   ══════════════════════════════════════════════════════════ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(4, 4, 12, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-xl);
  animation: lbIn var(--dur-med) var(--ease-out);
}

@keyframes lbIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.lightbox__close {
  position: absolute;
  top: 20px; right: 24px;
  font-size: 2rem;
  color: var(--clr-text-muted);
  background: none; border: none;
  cursor: pointer;
  transition: color var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
  z-index: 201;
}
.lightbox__close:hover { color: #fff; transform: scale(1.15); }

.lightbox__content {
  max-width: 900px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--rad-xl);
  animation: lbSlide var(--dur-med) var(--ease-out);
}

@keyframes lbSlide {
  from { transform: translateY(30px) scale(0.96); opacity: 0; }
  to   { transform: translateY(0) scale(1); opacity: 1; }
}

.lightbox__image {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--rad-xl) var(--rad-xl) 0 0;
}

.lightbox__info {
  padding: var(--sp-xl);
}

.lightbox__title {
  font-family: var(--ff-heading);
  font-size: 1.4rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: var(--sp-md);
}

.lightbox__desc {
  font-size: 0.92rem;
  color: var(--clr-text-muted);
  line-height: 1.8;
}

/* Custom scrollbar for lightbox */
.lightbox__content::-webkit-scrollbar { width: 5px; }
.lightbox__content::-webkit-scrollbar-track { background: transparent; }
.lightbox__content::-webkit-scrollbar-thumb { background: var(--clr-border); border-radius: 10px; }

/* ══════════════════════════════════════════════════════════
   COMMUNITY DISCUSSION SECTION
   ══════════════════════════════════════════════════════════ */
.community {
  max-width: 720px;
  margin: 0 auto;
  padding-top: var(--sp-xl);
}

.community__header {
  text-align: center;
  margin-bottom: var(--sp-2xl);
}

.community__title {
  font-family: var(--ff-heading);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 400;
  color: var(--clr-text);
  margin-bottom: var(--sp-sm);
}

.community__subtitle {
  font-size: 1rem;
  font-weight: 300;
  color: var(--clr-text-muted);
  line-height: 1.6;
  max-width: 480px;
  margin: 0 auto;
}

/* ── Compose Area ──────────────────────────────────────── */
.community__compose {
  display: flex;
  gap: var(--sp-md);
  padding: var(--sp-lg);
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--rad-lg);
  margin-bottom: var(--sp-xl);
  transition: border-color var(--dur-med) var(--ease-out);
}

.community__compose:focus-within {
  border-color: var(--clr-border-hover);
}

.compose__avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, #9E6DFF, #5C72FF);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-heading);
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
  margin-top: 2px;
}

.compose__body {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: var(--sp-sm);
}

.compose__topic-row {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
}

.compose__label {
  font-size: 0.75rem;
  color: var(--clr-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.compose__select {
  font-family: var(--ff-body);
  font-size: 0.8rem;
  color: var(--clr-text);
  background: var(--clr-surface-alt);
  border: 1px solid var(--clr-border);
  border-radius: 4px;
  padding: 4px 8px;
  cursor: pointer;
  transition: border-color var(--dur-fast) var(--ease-out);
  outline: none;
}

.compose__select:focus {
  border-color: var(--clr-border-hover);
}

.compose__select option {
  background: var(--clr-surface);
  color: var(--clr-text);
}

.compose__textarea {
  font-family: var(--ff-body);
  font-size: 0.95rem;
  font-weight: 300;
  color: var(--clr-text);
  background: transparent;
  border: none;
  outline: none;
  resize: vertical;
  min-height: 60px;
  max-height: 200px;
  line-height: 1.6;
}

.compose__textarea::placeholder {
  color: var(--clr-text-dim);
}

.compose__footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--sp-xs);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.compose__charcount {
  font-size: 0.72rem;
  color: var(--clr-text-dim);
  font-variant-numeric: tabular-nums;
}

.compose__charcount.near-limit {
  color: #FFB347;
}

.compose__charcount.at-limit {
  color: #FF7B89;
}

/* ── Filter Chips ──────────────────────────────────────── */
.community__filters {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: var(--sp-xl);
  padding-bottom: var(--sp-lg);
  border-bottom: 1px dotted var(--clr-border);
}

.filter-chip {
  font-family: var(--ff-body);
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--clr-text-muted);
  background: transparent;
  border: 1px solid var(--clr-border);
  border-radius: 2px;
  padding: 5px 12px;
  cursor: pointer;
  transition: all var(--dur-fast) var(--ease-out);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.filter-chip:hover {
  color: var(--clr-text);
  border-color: var(--clr-border-hover);
}

.filter-chip.active {
  color: #000;
  background: #fff;
  border-color: #fff;
}

/* ── Comment Feed ──────────────────────────────────────── */
.community__feed {
  display: flex;
  flex-direction: column;
  gap: var(--sp-md);
}

/* Individual comment card */
.comment-card {
  display: flex;
  gap: var(--sp-md);
  padding: var(--sp-lg);
  background: transparent;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  animation: commentSlideIn var(--dur-slow) var(--ease-out) both;
  transition: background var(--dur-fast) var(--ease-out);
}

.comment-card:hover {
  background: rgba(255, 255, 255, 0.02);
}

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

.comment-card__avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--ff-heading);
  font-size: 0.85rem;
  font-weight: 600;
  color: #fff;
  flex-shrink: 0;
  margin-top: 2px;
}

.comment-card__body {
  flex: 1;
  min-width: 0;
}

.comment-card__meta {
  display: flex;
  align-items: center;
  gap: var(--sp-sm);
  margin-bottom: 4px;
  flex-wrap: wrap;
}

.comment-card__alias {
  font-family: var(--ff-heading);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--clr-text);
}

.comment-card__topic {
  font-size: 0.65rem;
  font-weight: 500;
  color: var(--clr-text-muted);
  background: rgba(255, 255, 255, 0.06);
  padding: 2px 8px;
  border-radius: 2px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.comment-card__time {
  font-size: 0.72rem;
  color: var(--clr-text-dim);
  margin-left: auto;
}

.comment-card__message {
  font-size: 0.92rem;
  font-weight: 300;
  color: #D4D4D8;
  line-height: 1.7;
  word-break: break-word;
}

/* ── Empty state ───────────────────────────────────────── */
.community__empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-md);
  margin-top: var(--sp-2xl);
  text-align: center;
  color: var(--clr-text-dim);
}

.community__empty-icon {
  font-size: 2.5rem;
  opacity: 0.4;
  animation: iconPulse 3s ease-in-out infinite;
}

.community__empty p {
  font-size: 0.95rem;
  font-weight: 300;
  max-width: 320px;
  line-height: 1.6;
}

/* ── Post sending state ────────────────────────────────── */
.btn--accent.sending {
  opacity: 0.5;
  pointer-events: none;
}

/* ── Just-posted highlight ─────────────────────────────── */
.comment-card.just-posted {
  background: rgba(158, 109, 255, 0.06);
  border-left: 2px solid #9E6DFF;
}

/* ── Footer ────────────────────────────────────────────── */
#site-footer {
  position: relative; z-index: 10;
  text-align: center;
  padding: var(--sp-xl) var(--sp-md) var(--sp-lg);
  font-size: 0.8rem;
  color: var(--clr-text-dim);
}

/* ══════════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════════ */
@media (max-width: 768px) {
  #top-nav { padding: 0 var(--sp-md); }
  .nav__brand { margin-right: var(--sp-md); }
  .nav__tab span { display: none; }
  .nav__tab { padding: 8px 12px; }
  .nav__tab-icon { width: 20px; height: 20px; }

  .apod__info { padding: var(--sp-lg); }
  .apod__image { max-height: 380px; }

  .gallery-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-md); }
  .gallery-card__image-wrap { height: 160px; }

  .community__compose { flex-direction: column; }
  .compose__avatar { align-self: flex-start; }
  .comment-card__time { margin-left: 0; }
}

@media (max-width: 480px) {
  .nav__logo { display: none; }
  .gallery-grid { grid-template-columns: 1fr; }
  .apod__image { max-height: 280px; }
  .lightbox { padding: var(--sp-md); }
  .lightbox__image { max-height: 300px; }

  .community__filters { gap: 4px; }
  .filter-chip { padding: 4px 8px; font-size: 0.7rem; }
  .comment-card { padding: var(--sp-md); }
  .comment-card__avatar { width: 30px; height: 30px; font-size: 0.75rem; }
}