*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; }

:root {
  /* ── Muted dark palette ────────────────────── */
  --bg:           #0d1117;
  --text:         #e6edf3;
  --text-muted:   #8b949e;
  --text-dim:     #484f58;
  --accent:       #58a6ff;
  --green:        #3fb950;
  --green-dim:    rgba(63,185,80, 0.12);
  --orange:       #d29922;
  --purple:       #bc8cff;
  --red:          #f85149;

  --header-height: 58px;

  /* per-source RGB triplets for rgba() composition */
  --src-github-rgb:  88,166,255;
  --src-github-fg:   #58a6ff;
  --src-hn-rgb:      255,152,0;
  --src-hn-fg:       #ff9800;
  --src-devto-rgb:   124,135,245;
  --src-devto-fg:    #7c87f5;
  --src-tc-rgb:      76,175,80;
  --src-tc-fg:       #4caf50;
  --src-tnw-rgb:     255,64,129;
  --src-tnw-fg:      #ff4081;
  --src-verge-rgb:   187,134,252;
  --src-verge-fg:    #bb86fc;

  /* card grid */
  --card-width:     340px;
  --grid-columns:   3;

  /* ── GLASS tokens ─────────────────────────── */
  --glass-bg:       rgba(255,255,255, 0.03);
  --glass-bg-heavy: rgba(255,255,255, 0.05);
  --glass-border:   rgba(255,255,255, 0.10);
  --glass-border-hi: rgba(255,255,255, 0.20);
  --glass-edge:     rgba(255,255,255, 0.2);
  --glass-blur:     20px;
  --glass-saturate: 140%;
  --glass-radius:   22px;
  --glass-shadow:   0 8px 32px rgba(0,0,0,0.35),
                    0 1.5px 0 rgba(255,255,255,0.06) inset;
}

/* ─── Body — rich layered background visible through glass ── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI",
               "Noto Sans KR", Helvetica, Arial, sans-serif;
  min-height: 100vh;
  line-height: 1.6;
  position: relative;
}

/* Ambient color orbs that show through the frosted glass */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 50% 50% at 15% 25%, rgba(var(--src-github-rgb),0.08) 0%, transparent 70%),
    radial-gradient(ellipse 45% 45% at 80% 15%, rgba(var(--src-verge-rgb),0.06) 0%, transparent 70%),
    radial-gradient(ellipse 40% 55% at 60% 75%, rgba(var(--src-tnw-rgb),0.04) 0%, transparent 70%),
    radial-gradient(ellipse 50% 40% at 35% 70%, rgba(var(--src-tc-rgb),0.04) 0%, transparent 70%),
    radial-gradient(ellipse 35% 35% at 90% 60%, rgba(var(--src-hn-rgb),0.04) 0%, transparent 70%),
    radial-gradient(ellipse 30% 30% at 50% 40%, rgba(var(--src-devto-rgb),0.03) 0%, transparent 70%);
  pointer-events: none;
}

/* ─── Shared glass panel mixin via class ──────── */
.glass-panel {
  background: var(--glass-bg);
  border: 1px solid transparent;
  border-radius: var(--glass-radius);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  box-shadow: var(--glass-shadow);
  transition: border-color 0.3s ease;
}
.glass-panel:hover {
  border-color: var(--glass-border);
}

/* ─── Header — frosted glass bar ────────────────── */
header {
  background: rgba(13,17,23, 0.65);
  border-bottom: 1px solid var(--glass-border);
  padding: 0 1.5rem;
  position: sticky;
  top: 0;
  z-index: 200;
  -webkit-backdrop-filter: blur(30px) saturate(160%);
  backdrop-filter: blur(30px) saturate(160%);
  height: var(--header-height);
  /* Bright top edge — hallmark of glass */
  box-shadow: inset 0 1px 0 var(--glass-edge),
              0 4px 24px rgba(0,0,0,0.25);
}

.header-inner {
  margin: 0 auto;
  display: flex;
  align-items: center;
  height: 100%;
  gap: 1.5rem;
  position: relative;
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
  flex-shrink: 0;
}
.logo svg {
  height: 34px;
  width: auto;
}

nav {
  display: flex;
  gap: 0;
  margin-left: auto;
  height: 100%;
  align-items: stretch;
}

nav a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 0 1.1rem;
  font-size: 0.875rem;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: 2px solid transparent;
  transition: color 0.15s, border-color 0.15s;
}

nav a:hover { color: var(--text); }

/* ─── Layout ──────────────────────────────────── */
main {
  max-width: 2400px;
  margin: 0 auto;
  padding: 1.5rem;
}

/* ─── Filter bar — glass panel ────────────────── */
.filter-section {
  display: none;
  position: relative;
  z-index: 150;
  background: rgba(13,17,23, 0.35);
  -webkit-backdrop-filter: blur(20px) saturate(140%);
  backdrop-filter: blur(20px) saturate(140%);
  padding: 1rem 0;
  margin: -1rem 0 1rem;
  border-bottom: 1px solid var(--glass-border);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.08);
}

.filter-section.filter-overlay {
  display: block;
  position: fixed;
  top: var(--header-height);
  left: 0;
  right: 0;
  margin: 0;
  padding: 1rem 1.5rem;
  background: rgba(13,17,23, 0.75);
  -webkit-backdrop-filter: blur(28px) saturate(160%);
  backdrop-filter: blur(28px) saturate(160%);
  box-shadow: var(--glass-shadow);
  border-radius: 0;
  animation: filterSlideDown 0.3s ease;
}

.filter-inner {
  max-width: calc(var(--grid-columns) * var(--card-width) + (var(--grid-columns) - 1) * 1rem);
  margin: 0 auto;
}

@keyframes filterSlideDown {
  from { transform: translateY(-100%); opacity: 0; }
  to   { transform: translateY(0);     opacity: 1; }
}

@keyframes filterSlideUp {
  from { transform: translateY(0);     opacity: 1; }
  to   { transform: translateY(-100%); opacity: 0; }
}

.filter-section.filter-overlay.filter-overlay-hiding {
  animation: filterSlideUp 0.3s ease forwards;
}

/* ─── Pull-tab handle ────────────────────────── */
.filter-pull-tab {
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.25rem;
  border-radius: 4px;
  transition: color 0.2s ease;
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
}

.filter-pull-tab:hover {
  color: var(--text);
}

.filter-pull-tab svg {
  transition: transform 0.3s ease;
}

.filter-pull-tab:hover svg {
  animation: pullTabBounce 2s ease-in-out infinite;
}

.filter-pull-tab.active svg {
  transform: rotate(180deg);
  animation: none;
}

@keyframes pullTabBounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(2px); }
}

.filter-bar {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
  align-items: center;
}

.filter-bar:last-child {
  margin-bottom: 0;
}

.filter-label {
  color: var(--text-dim);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-right: 0.25rem;
}

.filter-pill {
  padding: 0.3rem 0.85rem;
  border-radius: 999px;
  border: 1px solid transparent;
  background: rgba(255,255,255,0.04);
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  transform: translateY(-1px);
}

.filter-pill:hover {
  border-color: var(--glass-border-hi);
  color: var(--text);
  background: rgba(255,255,255,0.05);
  box-shadow: 0 0 10px rgba(255,255,255,0.03);
}

.filter-pill.active {
  background: rgba(88,166,255, 0.15);
  border-color: rgba(88,166,255, 0.35);
  color: #fff;
  box-shadow: 0 0 16px rgba(88,166,255, 0.10), inset 0 1px 0 rgba(255,255,255,0.12);
}

.lang-btn {
  font-family: inherit;
}

/* ─── Hero row: Tech Pulse (left) + Headline Banner (right) ── */
.hero-row {
  max-width: calc(var(--grid-columns) * var(--card-width) + (var(--grid-columns) - 1) * 1rem);
  margin: 0 auto 1.5rem;
  display: flex;
  gap: 1rem;
  align-items: stretch;
}

/* ─── Tech Pulse Dashboard ───────────────────── */
.tech-pulse {
  flex: 1 1 340px;
  min-width: 0;
  border-radius: var(--glass-radius);
  border: 1px solid transparent;
  background: rgba(255,255,255,0.03);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  box-shadow: var(--glass-shadow);
  padding: 1.2rem 1.4rem;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  overflow: hidden;
  transition: border-color 0.3s;
}
.tech-pulse:hover { border-color: var(--glass-border); }

.tech-pulse-header {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.tech-pulse-icon { font-size: 1.15rem; }
.tech-pulse-title {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.01em;
}

.pulse-section { display: flex; flex-direction: column; gap: 0.35rem; }
.pulse-section-label {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--accent);
}

/* Source bar chart */
.pulse-source-bars { display: flex; flex-direction: column; gap: 0.25rem; }
.pulse-source-row {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.75rem;
}
.pulse-source-name {
  width: 85px;
  flex-shrink: 0;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.pulse-bar-track {
  flex: 1;
  height: 6px;
  border-radius: 3px;
  background: rgba(255,255,255,0.06);
  overflow: hidden;
}
.pulse-bar-fill {
  height: 100%;
  border-radius: 3px;
  min-width: 4px;
  transition: width 0.6s ease;
}
.pulse-bar-fill[data-source="hackernews"] { background: var(--src-hn-fg); }
.pulse-bar-fill[data-source="devto"]      { background: var(--src-devto-fg); }
.pulse-bar-fill[data-source="techcrunch"] { background: var(--src-tc-fg); }
.pulse-bar-fill[data-source="thenextweb"] { background: var(--src-tnw-fg); }
.pulse-bar-fill[data-source="theverge"]   { background: var(--src-verge-fg); }
.pulse-source-count {
  width: 28px;
  text-align: right;
  font-weight: 700;
  color: var(--text);
  font-size: 0.72rem;
}

/* Keyword cloud */
.pulse-keyword-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem 0.5rem;
  line-height: 1.4;
}
.pulse-keyword {
  color: var(--text);
  font-weight: 600;
  white-space: nowrap;
}
.pulse-keyword--lg {
  font-size: 0.7rem;
  font-weight: 500;
  opacity: 1;
  background: rgba(255,255,255,0.05);
  color: var(--text-dim);
  padding: 0.12rem 0.45rem;
  border-radius: 6px;
  border: 1px solid rgba(255,255,255,0.10);
}
.pulse-keyword--md { font-size: 0.95rem; opacity: 0.85; }
.pulse-keyword--sm { font-size: 0.8rem; opacity: 0.65; }

/* Top repos */
.pulse-repo-list { display: flex; flex-direction: column; gap: 0.15rem; }
.pulse-repo-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.25rem 0.4rem;
  border-radius: 6px;
  text-decoration: none;
  color: var(--text);
  font-size: 0.75rem;
  transition: background 0.15s;
}
.pulse-repo-item:hover { background: rgba(255,255,255,0.06); }
.pulse-repo-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.pulse-repo-name strong { color: var(--accent); font-weight: 700; }
.pulse-repo-stars {
  flex-shrink: 0;
  font-weight: 700;
  color: var(--orange);
  font-size: 0.72rem;
  margin-left: 0.5rem;
}

/* Summary stats row */
.pulse-summary-row {
  display: flex;
  gap: 1.2rem;
  padding-top: 0.3rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: auto;
  transform: translateY(7px);
}
.pulse-stat { display: flex; align-items: baseline; gap: 0.3rem; }
.pulse-stat-num {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--accent);
}
.pulse-stat-label {
  font-size: 0.7rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ─── Headline banner carousel — glass panel ──── */
.headline-banner {
  flex: 1.5 1 500px;
  min-width: 0;
  position: relative;
  overflow: hidden;
  border-radius: var(--glass-radius);
  border: 1px solid transparent;
  background: rgba(255,255,255,0.03);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  box-shadow: var(--glass-shadow);
  transition: border-color 0.3s ease;
}
.headline-banner:hover {
  border-color: var(--glass-border);
}

.headline-track {
  display: flex;
  height: 100%;
}

.headline-slide {
  min-width: 100%;
  height: 100%;
  position: relative;
  display: flex;
  flex-direction: column;
  justify-content: center;
  text-decoration: none;
  color: inherit;
  padding: 0;
  overflow: hidden;
}

.headline-slide-img {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.headline-slide-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* When image exists: push text to bottom with gradient overlay */
.headline-slide:has(.headline-slide-img) .headline-slide-body {
  margin-top: auto;
  background: linear-gradient(to top, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.5) 55%, transparent 100%);
  color: #fff;
}
.headline-slide:has(.headline-slide-img) .headline-slide-title {
  color: #fff;
}
.headline-slide:has(.headline-slide-img) .headline-slide-meta {
  color: rgba(255,255,255,0.7);
}

.headline-slide-body {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 0.5rem;
  min-width: 0;
  padding: 1rem 1.5rem;
}

.headline-slide:not(:has(.headline-slide-img)) .headline-slide-body {
  flex: 1;
  padding: 1.5rem 4.5rem;
}

.headline-slide-title {
  font-size: 1.2rem;
  font-weight: 800;
  line-height: 1.35;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.headline-slide-meta {
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.headline-dots {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  justify-content: center;
  gap: 0.4rem;
  padding: 0 0 0.6rem;
  z-index: 2;
  pointer-events: none;
}

.headline-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: rgba(255,255,255,0.25);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  pointer-events: auto;
}

.headline-dot.active {
  background: #fff;
  transform: scale(1.3);
  box-shadow: 0 0 8px rgba(255,255,255, 0.5);
}

.headline-nav {
  position: absolute;
  top: 0;
  bottom: 0;
  width: 3.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 2;
  background: transparent;
  border: none;
  color: #fff;
  font-size: 1.5rem;
  opacity: 0;
  transition: opacity 0.25s;
}

.headline-banner:hover .headline-nav {
  opacity: 1;
}

.headline-nav:hover {
  color: #fff;
}

.headline-nav--prev {
  left: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.45), transparent);
}

.headline-nav--next {
  right: 0;
  background: linear-gradient(to left, rgba(0,0,0,0.45), transparent);
}

@media (max-width: 640px) {
  .hero-row { flex-direction: column; gap: 0.75rem; }
  .headline-banner { flex: 0 1 auto; min-height: unset; max-height: 240px; }
  .headline-slide { height: auto; min-height: 0; }
  .headline-slide-img { position: relative; inset: auto; max-height: 150px; }
  .headline-slide-img img { max-height: 150px; }
  .headline-slide:has(.headline-slide-img) .headline-slide-body {
    position: relative;
    margin-top: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.65) 100%);
  }
  .headline-slide-body { padding: 0.75rem 0.85rem; }
  .headline-slide:not(:has(.headline-slide-img)) .headline-slide-body { padding: 0.85rem; }
  .headline-slide-title { font-size: 0.92rem; }
  .headline-nav { display: none; }
  .headline-dots { padding-bottom: 0.4rem; }
  .tech-pulse { display: none; }
}

/* ─── Section container ───────────────────────── */
#tech-feed {
  max-width: calc(var(--grid-columns) * var(--card-width) + (var(--grid-columns) - 1) * 1rem);
  margin-inline: auto;
}

/* ─── News Card Grid ─────────────────────────── */
.news-grid {
  column-count: var(--grid-columns);
  column-gap: 1rem;
}


@media (max-width: 720px) {
  :root {
    --grid-columns: 1;
    --card-width: 100%;
    --glass-radius: 16px;
  }

  .news-card {
    margin-bottom: 0.75rem;
  }

  #tech-feed {
    padding-inline: 0.5rem;
  }
}

@media (min-width: 721px) and (max-width: 1080px) {
  :root { --grid-columns: 2; }
}

@media (min-width: 1081px) and (max-width: 1440px) {
  :root { --grid-columns: 3; }
}

@media (min-width: 1441px) and (max-width: 1800px) {
  :root { --grid-columns: 4; }
}

@media (min-width: 1801px) and (max-width: 2160px) {
  :root { --grid-columns: 5; }
}

@media (min-width: 2161px) {
  :root { --grid-columns: 6; }
}

/* ╔══════════════════════════════════════════════╗
   ║  NEWS CARD — TRUE LIQUID GLASS              ║
   ║  Key: translucent bg, bright top edge,      ║
   ║  inner gradient refraction, always-visible   ║
   ║  specular shine, per-source color tint       ║
   ╚══════════════════════════════════════════════╝ */
.news-card {
  /* Glass surface — light-tinted translucency */
  background:
    linear-gradient(
      168deg,
      rgba(255,255,255,0.05) 0%,
      rgba(255,255,255,0.015) 50%,
      rgba(255,255,255,0.00) 100%
    );
  border: 1px solid transparent;
  /* Bright top edge — THE hallmark of liquid glass */
  border-top: 1px solid var(--glass-edge);
  border-radius: var(--glass-radius);
  padding: 1.1rem 1.2rem 1rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  cursor: pointer;
  position: relative;
  overflow: hidden;
  break-inside: avoid;
  margin-bottom: 1rem;
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  /* Multi-layer shadow: outer depth + inner top highlight */
  box-shadow:
    0 6px 24px rgba(0,0,0,0.22),
    0 2px 6px rgba(0,0,0,0.15),
    inset 0 1px 0 var(--glass-edge);
}

.card-content {
  display: flex;
  flex-direction: column;
  flex: 1;
  min-width: 0;
}

/* Always-visible specular shine — light refraction through glass */
.news-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--glass-radius);
  opacity: 1;
  transition: opacity 0.3s ease;
  background: linear-gradient(
    135deg,
    rgba(255,255,255,0.06) 0%,
    rgba(255,255,255,0.02) 25%,
    transparent 50%,
    transparent 100%
  );
  pointer-events: none;
  z-index: 0;
}

/* Per-source colored glass tint — always slightly visible */
.news-card::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--glass-radius);
  opacity: 0.25;
  transition: opacity 0.3s ease;
  pointer-events: none;
  z-index: 0;
  /* Tint uses per-card --_src-rgb set below */
  background: linear-gradient(180deg,
    rgba(var(--_src-rgb, 255,255,255), 0.06) 0%,
    rgba(var(--_src-rgb, 255,255,255), 0.01) 60%,
    transparent 100%);
}

/* Set --_src-rgb per source — single declaration drives both ::after tint and hover glow */
.news-card[data-source="github"]    { --_src-rgb: var(--src-github-rgb); }
.news-card[data-source="hackernews"]{ --_src-rgb: var(--src-hn-rgb); }
.news-card[data-source="devto"]     { --_src-rgb: var(--src-devto-rgb); }
.news-card[data-source="techcrunch"]{ --_src-rgb: var(--src-tc-rgb); }
.news-card[data-source="thenextweb"]{ --_src-rgb: var(--src-tnw-rgb); }
.news-card[data-source="theverge"]  { --_src-rgb: var(--src-verge-rgb); }

.news-card:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--_src-rgb, 255,255,255), 0.30);
  box-shadow:
    0 10px 36px rgba(var(--_src-rgb, 0,0,0), 0.08),
    0 4px 10px rgba(0,0,0,0.18),
    inset 0 1px 0 rgba(255,255,255,0.30);
}

.news-card:hover::before { opacity: 1.0; }
.news-card:hover::after  { opacity: 0.5; }

/* Touch devices — disable hover lift to avoid sticky hover states */
@media (hover: none) {
  .news-card:hover { transform: none; }
  .news-card:active {
    transform: scale(0.98);
    transition-duration: 0.1s;
  }
  .headline-nav { opacity: 1; }
}

/* Keyboard-focused card */
.news-card.kbd-focus {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow:
    0 0 0 2px var(--accent),
    0 10px 36px rgba(var(--_src-rgb, 0,0,0), 0.08),
    0 4px 10px rgba(0,0,0,0.18),
    inset 0 1px 0 rgba(255,255,255,0.30);
}
.news-card.kbd-focus::before { opacity: 1.0; }
.news-card.kbd-focus::after  { opacity: 0.5; }

/* Keyboard shortcut help toast */
.kbd-help {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%) translateY(120%);
  background: var(--glass-surface, rgba(30,30,30,0.92));
  color: var(--text);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  padding: 0.75rem 1.2rem;
  font-size: 0.82rem;
  line-height: 1.7;
  z-index: 9999;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3);
  transition: transform 0.3s ease, opacity 0.3s ease;
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
}
.kbd-help.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
  pointer-events: auto;
}
.kbd-help kbd {
  display: inline-block;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 4px;
  padding: 0.1em 0.45em;
  font-family: inherit;
  font-size: 0.85em;
  margin: 0 0.1em;
  vertical-align: baseline;
}

/* Cover link */
.news-card-cover {
  position: absolute;
  inset: 0;
  z-index: 0;
}

a.card-metric {
  position: relative;
  z-index: 1;
  text-decoration: none;
}

a.card-metric:hover {
  color: var(--text);
  text-decoration: underline;
}

/* Card thumbnail */
.card-thumbnail {
  margin: -1.1rem -1.2rem 1rem;
  border-radius: calc(var(--glass-radius) - 1px) calc(var(--glass-radius) - 1px) 0 0;
  overflow: hidden;
  background: rgba(255,255,255,0.03);
}

.card-thumbnail img {
  width: 100%;
  height: auto;
  display: block;
}

/* Card eyebrow: source badge + date */
.card-eyebrow {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.65rem;
}

.source-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  padding: 0.2rem 0.65rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  /* Glass pill with per-source tint */
  border: 1px solid;
}

.source-pill.github     { background: rgba(var(--src-github-rgb), 0.15); color: var(--src-github-fg); border-color: rgba(var(--src-github-rgb), 0.30); }
.source-pill.hackernews { background: rgba(var(--src-hn-rgb), 0.15);     color: var(--src-hn-fg);     border-color: rgba(var(--src-hn-rgb), 0.30); }
.source-pill.devto      { background: rgba(var(--src-devto-rgb), 0.15);  color: var(--src-devto-fg);  border-color: rgba(var(--src-devto-rgb), 0.30); }
.source-pill.techcrunch { background: rgba(var(--src-tc-rgb), 0.15);     color: var(--src-tc-fg);     border-color: rgba(var(--src-tc-rgb), 0.30); }
.source-pill.thenextweb { background: rgba(var(--src-tnw-rgb), 0.15);    color: var(--src-tnw-fg);    border-color: rgba(var(--src-tnw-rgb), 0.30); }
.source-pill.theverge   { background: rgba(var(--src-verge-rgb), 0.15);  color: var(--src-verge-fg);  border-color: rgba(var(--src-verge-rgb), 0.30); }

/* Topic pills – subtle coloured badges */
.topic-pill {
  display: inline-flex;
  align-items: center;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  border: 1px solid;
}
.topic-pill.topic-ai       { background: rgba(168, 85, 247, 0.15); color: #c084fc; border-color: rgba(168, 85, 247, 0.30); }
.topic-pill.topic-webdev   { background: rgba(59, 130, 246, 0.15); color: #60a5fa; border-color: rgba(59, 130, 246, 0.30); }
.topic-pill.topic-cloud    { background: rgba(14, 165, 233, 0.15); color: #38bdf8; border-color: rgba(14, 165, 233, 0.30); }
.topic-pill.topic-security { background: rgba(239, 68, 68, 0.15);  color: #f87171; border-color: rgba(239, 68, 68, 0.30); }
.topic-pill.topic-mobile   { background: rgba(34, 197, 94, 0.15);  color: #4ade80; border-color: rgba(34, 197, 94, 0.30); }
.topic-pill.topic-game     { background: rgba(234, 179, 8, 0.15);  color: #facc15; border-color: rgba(234, 179, 8, 0.30); }
.topic-pill.topic-opensource { background: rgba(251, 146, 60, 0.15); color: #fb923c; border-color: rgba(251, 146, 60, 0.30); }
.topic-pill.topic-startup  { background: rgba(236, 72, 153, 0.15); color: #f472b6; border-color: rgba(236, 72, 153, 0.30); }

.card-date {
  font-size: 0.72rem;
  color: var(--text-dim);
}

.card-headline {
  font-size: 0.975rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.01em;
}

.card-summary {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 0.6rem;
}

.card-body {
  font-size: 0.825rem;
  color: var(--text-muted);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
  flex: 1;
  margin-bottom: 0.85rem;
}

.card-footer {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: auto;
  padding-top: 0.75rem;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.card-metric {
  display: inline-flex;
  align-items: center;
  gap: 0.22rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  white-space: nowrap;
}

.card-metric svg {
  width: 12px;
  height: 12px;
  opacity: 0.7;
  flex-shrink: 0;
}

/* Trending badge — glass pill */
.trending-badge {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  background: rgba(61,224,160, 0.12);
  color: var(--green);
  padding: 0.18rem 0.55rem;
  border-radius: 999px;
  font-size: 0.7rem;
  font-weight: 700;
  border: 1px solid rgba(61,224,160, 0.25);
}

.lang-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  flex-shrink: 0;
}

.card-tag {
  background: rgba(255,255,255,0.05);
  color: var(--text-dim);
  padding: 0.12rem 0.45rem;
  border-radius: 6px;
  font-size: 0.7rem;
  font-weight: 500;
  border: 1px solid rgba(255,255,255,0.10);
}

.card-author {
  font-size: 0.75rem;
  color: var(--text-dim);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 120px;
}

.score-highlight {
  font-weight: 600;
}

/* ─── Stat strip ──────────────────────────────── */
.stat-strip {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
  flex-wrap: wrap;
}

.stat-chip {
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
  border-radius: 12px;
  padding: 0.3rem 0.75rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 0.35rem;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.10);
  transition: border-color 0.3s ease;
}
.stat-chip:hover {
  border-color: var(--glass-border);
}
.news-card:hover .stat-chip {
  border-color: var(--glass-border);
}

.stat-chip strong { color: var(--text); }

/* ─── Ad card ─────────────────────────────────── */
.news-card--ad {
  background: rgba(255,255,255,0.03);
  border: 1px solid transparent;
  border-radius: var(--glass-radius);
  padding: 1.1rem 1.2rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 250px;
  break-inside: avoid;
  margin-top: 0.5rem;
  margin-bottom: 1.5rem;
  overflow: hidden;
  -webkit-backdrop-filter: blur(var(--glass-blur));
  backdrop-filter: blur(var(--glass-blur));
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
  transition: border-color 0.3s ease;
}
.news-card--ad:hover {
  border-color: var(--glass-border);
}

.news-card--ad .ad-label {
  font-size: 0.65rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.news-card--ad ins.adsbygoogle {
  display: block;
  width: 100%;
}

/* ─── Read state ──────────────────────────────── */
.read-badge {
  display: none;
  position: absolute;
  top: 0.6rem;
  right: 0.6rem;
  z-index: 2;
  padding: 0.15rem 0.55rem;
  border-radius: 999px;
  background: rgba(88,166,255, 0.18);
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.03em;
  pointer-events: none;
  border: 1px solid rgba(88,166,255, 0.25);
}

.news-card.is-read {
  opacity: 0.45;
}

.news-card.is-read .read-badge {
  display: inline-block;
}

.news-card.is-read:hover {
  opacity: 0.75;
}

.news-card.is-hidden-read {
  display: none;
}

/* ─── Load More button ────────────────────────── */
.load-more-container {
  display: flex;
  justify-content: center;
  padding: 2rem 0 3rem;
}

.load-more-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 2rem;
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: 12px;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s, transform 0.15s;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}

.load-more-btn:hover {
  background: var(--glass-hover);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.load-more-btn:active {
  transform: translateY(0);
}

.load-more-spinner {
  width: 16px;
  height: 16px;
  border: 2px solid var(--text-muted);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: load-more-spin 0.6s linear infinite;
}

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

/* ─── Empty state ─────────────────────────────── */
.empty-state {
  text-align: center;
  padding: 5rem 2rem;
  color: var(--text-muted);
}

.empty-state .icon { font-size: 3.5rem; margin-bottom: 1rem; }

.empty-state h3 {
  color: var(--text);
  font-size: 1.1rem;
  margin-bottom: 0.5rem;
}

.empty-state code {
  display: inline-block;
  margin-top: 1rem;
  background: rgba(255,255,255,0.04);
  border: 1px solid transparent;
  padding: 0.5rem 1.1rem;
  border-radius: 12px;
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: border-color 0.3s ease;
}
.empty-state code:hover {
  border-color: var(--glass-border);
}

/* ─── RSS icon ────────────────────────────────── */
.rss-icon-link,
.header-icon-link {
  display: flex;
  align-items: center;
  color: var(--text-muted);
  padding: 0.4rem;
  transition: color 0.15s;
}
.rss-icon-link:hover,
.header-icon-link:hover { color: var(--text); }

/* ─── Search panel — glass dropdown ──────────── */
.search-wrapper {
  position: relative;
  margin-left: auto;
}

.search-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.4rem;
  display: flex;
  align-items: center;
}

.search-toggle:hover { color: var(--text); }

.search-panel {
  display: none;
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  width: 380px;
  max-width: 90vw;
  background: rgba(22,27,34, 0.80);
  border: 1px solid transparent;
  border-radius: var(--glass-radius);
  box-shadow: var(--glass-shadow);
  z-index: 300;
  overflow: hidden;
  -webkit-backdrop-filter: blur(30px) saturate(160%);
  backdrop-filter: blur(30px) saturate(160%);
  transition: border-color 0.3s ease;
}

.search-panel.open { display: block; }
.search-panel:hover {
  border-color: var(--glass-border);
}

.search-input-wrap {
  display: flex;
  align-items: center;
  padding: 0.75rem 1rem;
  gap: 0.5rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.search-input-wrap svg { color: var(--text-dim); flex-shrink: 0; }

.search-input {
  flex: 1;
  background: none;
  border: none;
  color: var(--text);
  font-size: 0.9rem;
  outline: none;
  font-family: inherit;
}

.search-input::placeholder { color: var(--text-dim); }

.search-results {
  max-height: 400px;
  overflow-y: auto;
  padding: 0.25rem 0;
}

.search-results:empty::after {
  content: '';
  display: none;
}

.search-result-item {
  display: block;
  padding: 0.65rem 1rem;
  text-decoration: none;
  color: var(--text);
  font-size: 0.85rem;
  line-height: 1.4;
  transition: background 0.15s;
}

.search-result-item:hover { background: rgba(255,255,255,0.06); }

.search-result-type {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  margin-right: 0.35rem;
  padding: 0.1rem 0.4rem;
  border-radius: 6px;
  vertical-align: middle;
}

.search-result-type.github     { background: rgba(var(--src-github-rgb), 0.15); color: var(--src-github-fg); }
.search-result-type.hackernews { background: rgba(var(--src-hn-rgb), 0.15);     color: var(--src-hn-fg); }
.search-result-type.devto      { background: rgba(var(--src-devto-rgb), 0.15);  color: var(--src-devto-fg); }
.search-result-type.techcrunch { background: rgba(var(--src-tc-rgb), 0.15);     color: var(--src-tc-fg); }
.search-result-type.thenextweb { background: rgba(var(--src-tnw-rgb), 0.15);    color: var(--src-tnw-fg); }
.search-result-type.theverge   { background: rgba(var(--src-verge-rgb), 0.15);  color: var(--src-verge-fg); }

.search-result-meta {
  font-size: 0.72rem;
  color: var(--text-dim);
  margin-top: 0.15rem;
}

.search-result-desc {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.search-no-results {
  padding: 1.5rem 1rem;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.85rem;
}

/* ─── Share button / menu — glass ────────────── */
.share-btn {
  position: relative;
  z-index: 1;
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  padding: 0.15rem;
  display: inline-flex;
  align-items: center;
  transition: color 0.15s;
  margin-left: auto;
}

.share-btn:hover { color: var(--text); }

.share-menu {
  display: none;
  position: fixed;
  background: rgba(22,27,34, 0.88);
  border: 1px solid transparent;
  border-radius: 14px;
  box-shadow: var(--glass-shadow);
  z-index: 1000;
  min-width: 160px;
  padding: 0.3rem 0;
  -webkit-backdrop-filter: blur(28px) saturate(160%);
  backdrop-filter: blur(28px) saturate(160%);
  transition: border-color 0.3s ease;
}

.share-menu.open { display: block; }
.share-menu:hover {
  border-color: var(--glass-border);
}

.share-menu-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-decoration: none;
  cursor: pointer;
  background: none;
  border: none;
  width: 100%;
  font-family: inherit;
  transition: background 0.15s, color 0.15s;
}

.share-menu-item:hover {
  background: rgba(255,255,255,0.06);
  color: var(--text);
}

/* Toast — glass */
.toast {
  position: fixed;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%) translateY(calc(100% + 3rem));
  background: rgba(12,16,28, 0.55);
  border: 1px solid transparent;
  color: var(--text);
  padding: 0.6rem 1.2rem;
  border-radius: 14px;
  font-size: 0.82rem;
  z-index: 9999;
  box-shadow: var(--glass-shadow);
  transition: transform 0.3s ease, opacity 0.3s ease;
  pointer-events: none;
  opacity: 0;
  -webkit-backdrop-filter: blur(28px) saturate(200%);
  backdrop-filter: blur(28px) saturate(200%);
}

.toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}


/* ─── Responsive ─────────────────────────────── */
@media (max-width: 640px) {
  main { padding: 0.75rem; }
  .header-inner { gap: 0.5rem; }
  nav a { padding: 0 0.65rem; font-size: 0.8rem; }

  /* ── Header mobile ── */
  header { padding: 0 0.75rem; }
  .logo svg { height: 28px; }
  /* Touch-friendly tap targets for header icons */
  .search-toggle,
  .theme-toggle,
  .rss-icon-link,
  .header-icon-link { min-width: 40px; min-height: 40px; justify-content: center; }
  .filter-pull-tab { min-width: 40px; min-height: 36px; }

  /* ── Filter section mobile ── */
  .filter-section.filter-overlay { padding: 0.75rem 0.75rem; }
  .filter-bar { gap: 0.3rem; margin-bottom: 1rem; }
  .filter-bar#source-filter,
  .filter-bar#topic-filter {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    padding-bottom: 0.15rem;
  }
  .filter-bar#source-filter::-webkit-scrollbar,
  .filter-bar#topic-filter::-webkit-scrollbar { display: none; }
  .filter-label { font-size: 0.7rem; margin-right: 0.15rem; }
  .filter-pill {
    padding: 0.35rem 0.65rem;
    font-size: 0.72rem;
    min-height: 32px;
    display: inline-flex;
    align-items: center;
  }

  /* ── Hero row mobile ── */
  .hero-row { gap: 0.75rem; margin-bottom: 1rem; }
  .tech-pulse { display: none; }
  .headline-banner { min-height: unset; max-height: 240px; flex: 0 1 auto; }
  .headline-track { height: auto; }
  .headline-slide { height: auto; min-height: 0; }
  .headline-slide-img { position: relative; inset: auto; max-height: 150px; }
  .headline-slide-img img { max-height: 150px; }
  .headline-slide:has(.headline-slide-img) .headline-slide-body {
    position: relative;
    margin-top: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.85) 0%, rgba(0,0,0,0.65) 100%);
  }
  .headline-slide-body { padding: 0.75rem 0.85rem; }
  .headline-slide:not(:has(.headline-slide-img)) .headline-slide-body { padding: 0.85rem; }
  .headline-slide-label { font-size: 0.65rem; }
  .headline-slide-title { font-size: 0.92rem; line-height: 1.3; -webkit-line-clamp: 2; }
  .headline-slide-meta { font-size: 0.72rem; gap: 0.5rem; }
  .headline-dots { padding-bottom: 0.4rem; gap: 0.3rem; }
  .headline-dot { width: 6px; height: 6px; }

  /* ── News cards mobile ── */
  .news-card {
    padding: 0.85rem 0.9rem 0.75rem;
    border-radius: 16px;
    margin-bottom: 0.75rem;
  }
  .news-card::before,
  .news-card::after { border-radius: 16px; }
  .news-card:hover { transform: none; }
  .card-thumbnail {
    margin: -0.85rem -0.9rem 0.75rem;
    border-radius: 15px 15px 0 0;
  }
  .card-eyebrow { margin-bottom: 0.5rem; }
  .source-pill { padding: 0.15rem 0.5rem; font-size: 0.65rem; }
  .card-headline { font-size: 0.9rem; margin-bottom: 0.35rem; }
  .card-body { font-size: 0.78rem; margin-bottom: 0.6rem; }
  .card-summary { font-size: 0.75rem; margin-bottom: 0.5rem; }
  .card-footer { gap: 0.45rem; padding-top: 0.6rem; }
  .card-metric { font-size: 0.7rem; }
  .card-tag { font-size: 0.65rem; padding: 0.1rem 0.35rem; }
  .card-author { font-size: 0.7rem; max-width: 100px; }

  /* ── Share menu mobile ── */
  .share-menu { min-width: 140px; }
  .share-menu-item { padding: 0.55rem 0.75rem; font-size: 0.75rem; }

  /* ── Search panel mobile ── */
  .search-panel {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    width: 100%;
    max-width: 100vw;
    border-radius: 0 0 16px 16px;
  }

  /* ── Load more mobile ── */
  .load-more-container { padding: 1.5rem 0 2rem; }
  .load-more-btn { padding: 0.7rem 1.5rem; font-size: 0.88rem; }

  /* ── Empty state mobile ── */
  .empty-state { padding: 3rem 1rem; }
  .empty-state .icon { font-size: 2.5rem; }
  .empty-state h3 { font-size: 1rem; }
  .empty-state code { font-size: 0.78rem; padding: 0.4rem 0.8rem; }

  /* ── Toast mobile ── */
  .toast {
    bottom: 1rem;
    left: 0.75rem;
    right: 0.75rem;
    transform: translateY(calc(100% + 3rem));
    width: auto;
    text-align: center;
    font-size: 0.78rem;
  }
  .toast.show { transform: translateY(0); }

  /* ── Stat chips mobile ── */
  .stat-strip { gap: 0.35rem; margin-bottom: 0.85rem; }
  .stat-chip { padding: 0.2rem 0.55rem; font-size: 0.72rem; }

  /* ── Ad card mobile ── */
  .news-card--ad { min-height: 200px; border-radius: 16px; }

  /* ── Glass tweaks for mobile performance ── */
  .news-card,
  .tech-pulse,
  .headline-banner {
    -webkit-backdrop-filter: blur(12px) saturate(120%);
    backdrop-filter: blur(12px) saturate(120%);
  }

  /* ── Pulse dashboard mobile ── */
  .pulse-source-name { width: 72px; font-size: 0.7rem; }
  .pulse-source-count { font-size: 0.68rem; }
  .pulse-repo-item { font-size: 0.72rem; padding: 0.2rem 0.3rem; }
  .pulse-stat-num { font-size: 1rem; }
  .pulse-stat-label { font-size: 0.65rem; }
  .pulse-summary-row { gap: 0.9rem; }
  .pulse-keyword--md { font-size: 0.85rem; }
  .pulse-keyword--sm { font-size: 0.72rem; }
  .pulse-keyword--lg { font-size: 0.65rem; padding: 0.1rem 0.35rem; }

  /* ── Keyboard help mobile ── */
  .kbd-help { display: none !important; }

  /* ── Read badge mobile ── */
  .read-badge { top: 0.5rem; right: 0.5rem; font-size: 0.62rem; padding: 0.12rem 0.45rem; }
}

/* ── Extra-small mobile (≤ 380px) ── */
@media (max-width: 380px) {
  main { padding: 0.5rem; }
  header { padding: 0 0.5rem; }
  .logo svg { height: 24px; }
  .header-inner { gap: 0.35rem; }

  .filter-pill { padding: 0.3rem 0.5rem; font-size: 0.68rem; }
  .filter-label { font-size: 0.65rem; }

  .hero-row { margin-bottom: 0.75rem; }
  .tech-pulse { display: none; }
  .headline-banner { max-height: 200px; }
  .headline-slide-title { font-size: 0.85rem; }

  .news-card { padding: 0.7rem 0.75rem 0.65rem; border-radius: 14px; }
  .news-card::before,
  .news-card::after { border-radius: 14px; }
  .card-thumbnail { margin: -0.7rem -0.75rem 0.65rem; border-radius: 13px 13px 0 0; }
  .card-headline { font-size: 0.85rem; }
  .card-body { font-size: 0.75rem; }
  .card-summary { font-size: 0.72rem; }
  .source-pill { font-size: 0.6rem; padding: 0.12rem 0.4rem; }

  .search-panel { border-radius: 0 0 14px 14px; }
}

/* ═══════════════════════════════════════════════
   THEME TOGGLE BUTTON
   ═══════════════════════════════════════════════ */
.theme-toggle {
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 0.4rem;
  display: flex;
  align-items: center;
  transition: color 0.15s;
}
.theme-toggle:hover { color: var(--text); }
.theme-toggle .icon-sun,
.theme-toggle .icon-moon { display: none; }
html[data-theme="dark"] .theme-toggle .icon-sun { display: block; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* Logo text — adapts to theme */
.logo-text-main { fill: var(--text); }
.logo-text-sub  { fill: var(--text-muted); }
/* Logo icon mark — monochrome, adapts to theme */
.logo-mark-bg   { fill: var(--text); }
.logo-mark-icon { fill: var(--bg); }
.logo-mark-eye  { fill: var(--text); }

/* ═══════════════════════════════════════════════
   LIGHT MODE OVERRIDES
   All original dark-mode CSS stays untouched.
   Only html[data-theme="light"] rules below.
   ═══════════════════════════════════════════════ */
html[data-theme="light"] {
  --bg:             #F6F8FA;
  --text:           #1F2328;
  --text-muted:     #656d76;
  --text-dim:       #8b949e;
  --accent:         #0969da;
  --green:          #1a7f37;
  --green-dim:      rgba(26,127,55, 0.10);
  --orange:         #9a6700;
  --purple:         #8250df;
  --red:            #cf222e;

  /* Source pills */
  --src-github-fg:  #0550ae;
  --src-hn-fg:      #953800;
  --src-devto-fg:   #3b49df;
  --src-tc-fg:      #116329;
  --src-tnw-fg:     #cf222e;
  --src-verge-fg:   #6639ba;

  /* Glass tokens — clean flat style for light */
  --glass-bg:        rgba(255,255,255, 0.80);
  --glass-bg-heavy:  rgba(255,255,255, 0.90);
  --glass-border:    #D0D7DE;
  --glass-border-hi: #afb8c1;
  --glass-edge:      rgba(255,255,255, 0.80);
  --glass-blur:      12px;
  --glass-saturate:  110%;
  --glass-shadow:    0 1px 3px rgba(0,0,0,0.08), 0 0 0 1px rgba(0,0,0,0.04);
}

/* Ambient orbs — hide in light mode */
html[data-theme="light"] body::before { opacity: 0; }

/* Header */
html[data-theme="light"] header {
  background: rgba(255,255,255, 0.72);
  border-bottom-color: #D0D7DE;
  box-shadow: inset 0 -1px 0 #D0D7DE;
}

/* Filter section */
html[data-theme="light"] .filter-section {
  background: rgba(246,248,250, 0.85);
  box-shadow: none;
  border-bottom-color: #D0D7DE;
}
html[data-theme="light"] .filter-section.filter-overlay {
  background: rgba(255,255,255, 0.92);
}

/* Pull-tab — no special light theme styles needed (inherits from vars) */

/* Filter pills */
html[data-theme="light"] .filter-pill {
  background: #FFFFFF;
  border-color: #D0D7DE;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
html[data-theme="light"] .filter-pill:hover {
  background: #F6F8FA;
  border-color: #afb8c1;
  box-shadow: 0 1px 3px rgba(0,0,0,0.06);
}
html[data-theme="light"] .filter-pill.active {
  background: rgba(9,105,218, 0.12);
  border-color: rgba(9,105,218, 0.40);
  color: #0969da;
  box-shadow: none;
}

/* Tech Pulse dashboard */
html[data-theme="light"] .tech-pulse {
  background: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
html[data-theme="light"] .tech-pulse:hover {
  border-color: var(--glass-border);
}
html[data-theme="light"] .pulse-bar-track {
  background: rgba(0,0,0,0.05);
}
html[data-theme="light"] .pulse-repo-item:hover {
  background: #F6F8FA;
}
html[data-theme="light"] .pulse-summary-row {
  border-top-color: rgba(0,0,0,0.08);
}

/* Headline banner */
html[data-theme="light"] .headline-banner {
  background: #FFFFFF;
  border-color: transparent;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
html[data-theme="light"] .headline-banner:hover {
  border-color: var(--glass-border);
}
html[data-theme="light"] .headline-slide-img {
  background: #F6F8FA;
}
html[data-theme="light"] .headline-slide:has(.headline-slide-img) .headline-slide-body {
  background: linear-gradient(to top, rgba(0,0,0,0.78) 0%, rgba(0,0,0,0.45) 55%, transparent 100%);
}
html[data-theme="light"] .headline-dot {
  background: rgba(0,0,0, 0.20);
}
html[data-theme="light"] .headline-dot.active {
  background: #1F2328;
  box-shadow: 0 0 6px rgba(0,0,0, 0.2);
}
html[data-theme="light"] .headline-nav {
  color: #1F2328;
}
html[data-theme="light"] .headline-nav--prev {
  background: linear-gradient(to right, rgba(255,255,255,0.60), transparent);
}
html[data-theme="light"] .headline-nav--next {
  background: linear-gradient(to left, rgba(255,255,255,0.60), transparent);
}

/* News cards — clean white surface */
html[data-theme="light"] .news-card {
  background: #FFFFFF;
  border: 1px solid transparent;
  border-top: 1px solid transparent;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
html[data-theme="light"] .news-card::before { opacity: 0; }
html[data-theme="light"] .news-card::after  { opacity: 0.15; }
html[data-theme="light"] .news-card:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--_src-rgb, 0,0,0), 0.35);
  box-shadow: 0 4px 12px rgba(0,0,0,0.10);
}
html[data-theme="light"] .news-card:hover::before { opacity: 0; }
html[data-theme="light"] .news-card:hover::after  { opacity: 0.25; }
html[data-theme="light"] .news-card.kbd-focus {
  transform: translateY(-3px);
  border-color: var(--accent);
  box-shadow: 0 0 0 2px var(--accent), 0 4px 12px rgba(0,0,0,0.10);
}
html[data-theme="light"] .kbd-help {
  background: rgba(255,255,255,0.95);
  box-shadow: 0 8px 32px rgba(0,0,0,0.12);
}
html[data-theme="light"] .kbd-help kbd {
  background: rgba(0,0,0,0.06);
  border-color: rgba(0,0,0,0.15);
}

html[data-theme="light"] .card-thumbnail {
  background: #F6F8FA;
}
html[data-theme="light"] .card-footer {
  border-top-color: #eaeef2;
}
html[data-theme="light"] .trending-badge {
  background: rgba(26,127,55, 0.08);
  border-color: rgba(26,127,55, 0.20);
}
html[data-theme="light"] .card-tag {
  background: #F6F8FA;
  border-color: #D0D7DE;
}
html[data-theme="light"] .pulse-keyword--lg {
  background: #F6F8FA;
  border-color: #D0D7DE;
}

/* Stat chips */
html[data-theme="light"] .stat-chip {
  background: #FFFFFF;
  border-color: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
html[data-theme="light"] .stat-chip:hover {
  border-color: var(--glass-border);
}
html[data-theme="light"] .news-card:hover .stat-chip {
  border-color: var(--glass-border);
}

/* Ad card */
html[data-theme="light"] .news-card--ad {
  background: #FFFFFF;
  border-color: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
html[data-theme="light"] .news-card--ad:hover {
  border-color: var(--glass-border);
}

/* Read state */
html[data-theme="light"] .read-badge {
  background: rgba(9,105,218, 0.12);
  color: #0969da;
  border-color: rgba(9,105,218, 0.25);
}

html[data-theme="light"] .news-card.is-read {
  opacity: 0.45;
}

/* Empty state */
html[data-theme="light"] .empty-state code {
  background: #FFFFFF;
  border-color: transparent;
}
html[data-theme="light"] .empty-state code:hover {
  border-color: var(--glass-border);
}

/* Search panel */
html[data-theme="light"] .search-panel {
  background: rgba(255,255,255, 0.97);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
html[data-theme="light"] .search-panel:hover {
  border-color: var(--glass-border);
}
html[data-theme="light"] .search-input-wrap {
  border-bottom-color: #eaeef2;
}
html[data-theme="light"] .search-result-item:hover {
  background: #F6F8FA;
}

/* Share menu */
html[data-theme="light"] .share-menu {
  background: rgba(255,255,255, 0.97);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}
html[data-theme="light"] .share-menu:hover {
  border-color: var(--glass-border);
}
html[data-theme="light"] .share-menu-item:hover {
  background: #F6F8FA;
}

/* Toast */
html[data-theme="light"] .toast {
  background: rgba(255,255,255, 0.97);
  border-color: transparent;
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
}

/* Source pills — lighter background for light mode readability */
html[data-theme="light"] .source-pill.github     { background: rgba(var(--src-github-rgb), 0.10); border-color: rgba(var(--src-github-rgb), 0.25); }
html[data-theme="light"] .source-pill.hackernews { background: rgba(var(--src-hn-rgb), 0.10);     border-color: rgba(var(--src-hn-rgb), 0.25); }
html[data-theme="light"] .source-pill.devto      { background: rgba(var(--src-devto-rgb), 0.10);  border-color: rgba(var(--src-devto-rgb), 0.25); }
html[data-theme="light"] .source-pill.techcrunch { background: rgba(var(--src-tc-rgb), 0.10);     border-color: rgba(var(--src-tc-rgb), 0.25); }
html[data-theme="light"] .source-pill.thenextweb { background: rgba(var(--src-tnw-rgb), 0.10);    border-color: rgba(var(--src-tnw-rgb), 0.25); }
html[data-theme="light"] .source-pill.theverge   { background: rgba(var(--src-verge-rgb), 0.10);  border-color: rgba(var(--src-verge-rgb), 0.25); }

/* Topic pills — darker text for light mode readability */
html[data-theme="light"] .topic-pill.topic-ai       { color: #7c3aed; }
html[data-theme="light"] .topic-pill.topic-webdev   { color: #2563eb; }
html[data-theme="light"] .topic-pill.topic-cloud    { color: #0284c7; }
html[data-theme="light"] .topic-pill.topic-security { color: #dc2626; }
html[data-theme="light"] .topic-pill.topic-mobile   { color: #16a34a; }
html[data-theme="light"] .topic-pill.topic-game     { color: #a16207; }
html[data-theme="light"] .topic-pill.topic-opensource { color: #ea580c; }
html[data-theme="light"] .topic-pill.topic-startup  { color: #db2777; }

/* ═══════════════════════════════════════════════
   DIGEST PAGE
   ═══════════════════════════════════════════════ */
.digest-page {
  max-width: 960px;
  margin: 0 auto;
}

.digest-back a {
  color: var(--text-muted);
  text-decoration: none;
  font-size: 0.85rem;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 1.5rem;
  transition: color 0.15s;
}
.digest-back a:hover { color: var(--text); }

.digest-header {
  text-align: center;
  margin-bottom: 2.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid var(--glass-border);
}

.digest-title {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.digest-date-range {
  font-size: 0.95rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.digest-stats {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-bottom: 1rem;
}

.digest-stat {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.85rem;
  color: var(--text-muted);
  background: var(--glass-bg-heavy);
  border: 1px solid var(--glass-border);
  border-radius: 999px;
  padding: 0.4rem 1rem;
}

.digest-lang-bar {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* ── Sections ────────────────────────────── */
.digest-section {
  margin-bottom: 2.5rem;
}

.digest-section-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--glass-border);
}

/* ── Card Grid ───────────────────────────── */
.digest-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1rem;
}

.digest-card {
  display: flex;
  flex-direction: column;
  background:
    linear-gradient(168deg,
      rgba(255,255,255,0.05) 0%,
      rgba(255,255,255,0.015) 50%,
      rgba(255,255,255,0.00) 100%);
  border: 1px solid transparent;
  border-top: 1px solid var(--glass-edge);
  border-radius: var(--glass-radius);
  overflow: hidden;
  text-decoration: none;
  color: inherit;
  transition: border-color 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
  box-shadow:
    0 6px 24px rgba(0,0,0,0.22),
    0 2px 6px rgba(0,0,0,0.15),
    inset 0 1px 0 var(--glass-edge);
}

.digest-card:hover {
  transform: translateY(-3px);
  border-color: rgba(var(--_src-rgb, 255,255,255), 0.30);
  box-shadow:
    0 10px 36px rgba(var(--_src-rgb, 0,0,0), 0.08),
    0 4px 10px rgba(0,0,0,0.18),
    inset 0 1px 0 rgba(255,255,255,0.30);
}

.digest-card[data-source="github"]    { --_src-rgb: var(--src-github-rgb); }
.digest-card[data-source="hackernews"]{ --_src-rgb: var(--src-hn-rgb); }
.digest-card[data-source="devto"]     { --_src-rgb: var(--src-devto-rgb); }
.digest-card[data-source="techcrunch"]{ --_src-rgb: var(--src-tc-rgb); }
.digest-card[data-source="thenextweb"]{ --_src-rgb: var(--src-tnw-rgb); }
.digest-card[data-source="theverge"]  { --_src-rgb: var(--src-verge-rgb); }

.digest-card-thumb {
  background: rgba(255,255,255,0.03);
  overflow: hidden;
}
.digest-card-thumb img {
  width: 100%;
  height: 140px;
  object-fit: cover;
  display: block;
}

.digest-card-body {
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  flex: 1;
}

.digest-card-title {
  font-size: 0.925rem;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.digest-card-desc {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.digest-card-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: auto;
}

/* ── Source groups (Top 3 per source) ───── */
.digest-source-group {
  margin-bottom: 1.5rem;
}

.digest-source-label {
  margin-bottom: 0.65rem;
  font-size: 0.9rem;
}

.digest-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.digest-list-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 0.85rem 1rem;
  text-decoration: none;
  color: inherit;
  border-bottom: 1px solid var(--glass-border);
  transition: background 0.15s;
}
.digest-list-item:last-child { border-bottom: none; }
.digest-list-item:hover { background: var(--glass-bg-heavy); }

.digest-list-rank {
  flex-shrink: 0;
  width: 1.6rem;
  height: 1.6rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--glass-bg-heavy);
  border: 1px solid var(--glass-border);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent);
}

.digest-list-content {
  flex: 1;
  min-width: 0;
}

.digest-list-thumb {
  flex-shrink: 0;
  width: 4rem;
  height: 3rem;
  border-radius: 6px;
  overflow: hidden;
}

.digest-list-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.digest-list-title {
  font-size: 0.9rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 0.3rem;
}

.digest-list-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

/* ── Light mode overrides for digest ───── */
html[data-theme="light"] .digest-card {
  background: #FFFFFF;
  border-color: transparent;
  box-shadow: var(--glass-shadow);
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
html[data-theme="light"] .digest-card:hover {
  border-color: var(--glass-border);
  box-shadow: 0 4px 16px rgba(0,0,0,0.10);
}

html[data-theme="light"] .digest-list-item:hover {
  background: #F6F8FA;
}

@media (max-width: 640px) {
  .digest-title { font-size: 1.35rem; }
  .digest-grid { grid-template-columns: 1fr; }
  .digest-stats { flex-direction: column; align-items: center; gap: 0.5rem; }
}

/* ── PWA Install Banner ─────────────────────────── */
.pwa-install-banner {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.85rem 1.2rem;
  background: var(--glass-bg-heavy);
  border-top: 1px solid var(--glass-border);
  -webkit-backdrop-filter: blur(24px) saturate(150%);
  backdrop-filter: blur(24px) saturate(150%);
  transform: translateY(100%);
  transition: transform 0.3s ease;
}

.pwa-install-banner.show {
  transform: translateY(0);
}

.pwa-install-content {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex: 1;
  min-width: 0;
}

.pwa-install-icon {
  font-size: 1.3rem;
  flex-shrink: 0;
}

.pwa-install-text {
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.4;
}

.pwa-install-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}

.pwa-install-btn {
  padding: 0.45rem 1rem;
  border: none;
  border-radius: 999px;
  background: var(--accent);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  cursor: pointer;
  transition: opacity 0.2s;
}

.pwa-install-btn:hover {
  opacity: 0.85;
}

.pwa-dismiss-btn {
  padding: 0.3rem;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-size: 1rem;
  cursor: pointer;
  line-height: 1;
}

.pwa-dismiss-btn:hover {
  color: var(--text);
}

html[data-theme="light"] .pwa-install-banner {
  background: rgba(255,255,255,0.85);
  border-top-color: rgba(0,0,0,0.08);
}

@media (min-width: 769px) {
  .pwa-install-banner { display: none; }
}