/* ── Rosé Pine — Main ───────────────────────────────────── */
:root {
  --base:    #191724;
  --surface: #1f1d2e;
  --overlay: #26233a;
  --muted:   #6e6a86;
  --subtle:  #908caa;
  --text:    #e0def4;
  --love:    #eb6f92;
  --gold:    #f6c177;
  --rose:    #ebbcba;
  --pine:    #31748f;
  --foam:    #9ccfd8;
  --iris:    #c4a7e7;
  --hl-med:  #403d52;
  --hl-high: #524f67;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--base);
  color: var(--text);
  min-height: 100vh;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ── Entrance animation ──────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
  opacity: 0;
  animation: fadeUp 0.4s ease forwards;
}

/* ── Header ─────────────────────────────────────────────── */
header {
  background: var(--surface);
  padding: 1rem 1.25rem;
  border-bottom: 1px solid var(--overlay);
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.header-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}

header h1 {
  font-size: clamp(1.1rem, 4vw, 1.5rem);
  font-weight: 700;
  color: var(--rose);
  letter-spacing: -0.01em;
}

#news-date {
  font-size: 0.72rem;
  color: var(--muted);
  line-height: 1.5;
  margin-top: 0.15rem;
}

/* ── Nav sidebar ─────────────────────────────────────────── */
#nav-sidebar {
  display: none;
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: 52px;
  background: var(--surface);
  border-right: 1px solid var(--overlay);
  z-index: 20;
  flex-direction: column;
  align-items: center;
  padding: 1rem 0;
  gap: 0.25rem;
}

@media (min-width: 860px) {
  #nav-sidebar { display: flex; }
  body { padding-left: 52px; }
}

.nav-spacer { flex: 1; }

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  color: var(--muted);
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
  font: inherit;
}

.nav-link:hover  { background: var(--overlay); color: var(--subtle); }
.nav-link.active { background: var(--overlay); color: var(--text); }

.nav-link::after {
  content: attr(data-label);
  position: absolute;
  left: calc(100% + 10px);
  top: 50%;
  transform: translateY(-50%);
  background: var(--overlay);
  color: var(--text);
  font-size: 0.72rem;
  font-weight: 500;
  white-space: nowrap;
  padding: 0.3rem 0.65rem;
  border-radius: 6px;
  border: 1px solid var(--hl-med);
  pointer-events: none;
  opacity: 0;
  transition: opacity 0.15s ease;
  z-index: 30;
}

.nav-link:hover::after { opacity: 1; }

/* ── Settings popout ─────────────────────────────────────── */
#settings-popout {
  display: none;
  position: fixed;
  left: 60px;
  bottom: 8px;
  width: 196px;
  background: var(--surface);
  border: 1px solid var(--hl-med);
  border-radius: 10px;
  padding: 0.75rem;
  z-index: 100;
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  opacity: 0;
  transform: translateX(-6px);
  pointer-events: none;
  transition: opacity 0.15s ease, transform 0.15s ease;
}

@media (min-width: 860px) {
  #settings-popout { display: block; }
}

#settings-popout.open {
  opacity: 1;
  transform: translateX(0);
  pointer-events: all;
}

.settings-title {
  font-size: 0.63rem;
  font-weight: 700;
  color: var(--muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 0.55rem;
}

.settings-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.45rem 0;
  font-size: 0.8rem;
  color: var(--subtle);
  cursor: pointer;
  user-select: none;
  gap: 0.5rem;
}

.settings-row + .settings-row {
  border-top: 1px solid var(--overlay);
}

.toggle-wrap { display: flex; align-items: center; flex-shrink: 0; }

.toggle-wrap input[type="checkbox"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-track {
  width: 32px;
  height: 18px;
  background: var(--overlay);
  border: 1px solid var(--hl-med);
  border-radius: 9px;
  position: relative;
  transition: background 0.2s ease, border-color 0.2s ease;
  cursor: pointer;
  flex-shrink: 0;
}

.toggle-thumb {
  position: absolute;
  top: 2px;
  left: 2px;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--muted);
  transition: transform 0.2s ease, background 0.2s ease;
}

.toggle-wrap input:checked + .toggle-track {
  background: var(--iris);
  border-color: var(--iris);
}

.toggle-wrap input:checked + .toggle-track .toggle-thumb {
  transform: translateX(14px);
  background: var(--base);
}

/* ── Light mode (Rosé Pine Dawn) ─────────────────────────── */
body.light-mode {
  --base:    #faf4ed;
  --surface: #fffaf3;
  --overlay: #f2e9de;
  --muted:   #9893a5;
  --subtle:  #797593;
  --text:    #575279;
  --love:    #b4637a;
  --gold:    #ea9d34;
  --rose:    #d7827a;
  --pine:    #286983;
  --foam:    #56949f;
  --iris:    #907aa9;
  --hl-med:  #dfdad9;
  --hl-high: #cecacd;
}

/* ── List view ───────────────────────────────────────────── */
body.list-view .section-grid {
  grid-template-columns: 1fr !important;
}

body.list-view .article summary {
  padding: 0.6rem 0.85rem;
}

body.list-view .article h2 {
  font-size: 0.85rem;
}

body.list-view .preview {
  display: none;
}

/* ── Main layout ─────────────────────────────────────────── */
main {
  max-width: 1180px;
  margin: 1.5rem auto;
  padding: 0 1rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  align-items: start;
}

@media (min-width: 860px) {
  main {
    grid-template-columns: 1fr 280px;
  }
}

#news-container {
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

/* ── Section labels ──────────────────────────────────────── */
.section-label {
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  padding-bottom: 0.45rem;
  border-bottom: 1px solid currentColor;
  opacity: 0.9;
}
.label-red    { color: var(--love); }
.label-blue   { color: var(--pine); }
.label-green  { color: var(--foam); }
.label-yellow { color: var(--gold); }
.label-iris   { color: var(--iris); }
.label-rose   { color: var(--rose); }

/* ── Grid ────────────────────────────────────────────────── */
.section-grid {
  display: grid;
  gap: 0.65rem;
  grid-template-columns: 1fr;
  margin-bottom: 0.75rem;
}

@media (min-width: 540px) {
  .section-grid {
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  }
}

/* ── Cards ───────────────────────────────────────────────── */
.article {
  background: var(--surface);
  border-radius: 12px;
  border: 1px solid var(--overlay);
  overflow: hidden;
  transition:
    border-color 0.25s ease,
    box-shadow   0.25s ease,
    transform    0.2s ease;
  will-change: transform;
}

.article:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

/* Accent left border per section when open */
.article[open] { border-color: var(--hl-high); }
.article.accent-love[open] { border-left: 3px solid var(--love); }
.article.accent-pine[open] { border-left: 3px solid var(--pine); }
.article.accent-foam[open] { border-left: 3px solid var(--foam); }
.article.accent-gold[open] { border-left: 3px solid var(--gold); }
.article.accent-rose[open] { border-left: 3px solid var(--rose); }

/* ── Summary (collapsed state) ───────────────────────────── */
.article summary {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  padding: 1rem;
  cursor: pointer;
  list-style: none;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
  transition: background 0.15s ease;
}

.article summary::-webkit-details-marker { display: none; }

.article summary:hover  { background: rgba(255,255,255,0.03); }
.article summary:active { background: var(--overlay); }

.summary-inner { flex: 1; min-width: 0; }

.article h2 {
  font-size: 0.93rem;
  font-weight: 600;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 0.3rem;
  letter-spacing: -0.01em;
}

.preview {
  font-size: 0.8rem;
  line-height: 1.55;
  color: var(--subtle);
}

/* ── Chevron ─────────────────────────────────────────────── */
.chevron {
  flex-shrink: 0;
  margin-top: 2px;
  color: var(--muted);
  transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), color 0.2s ease;
  display: flex;
  align-items: center;
}

.article[open] .chevron {
  transform: rotate(180deg);
  color: var(--subtle);
}

/* ── Expanded content ────────────────────────────────────── */
.expanded {
  overflow: hidden;
  transition: height 0.32s cubic-bezier(0.4, 0, 0.2, 1);
}

.expanded p {
  font-size: 0.86rem;
  line-height: 1.75;
  color: var(--subtle);
  padding: 0.75rem 1rem 0.5rem;
  border-top: 1px solid var(--overlay);
}

.source {
  display: block;
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0 1rem 0.85rem;
  letter-spacing: 0.01em;
}

.lean-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  margin-right: 4px;
  vertical-align: middle;
  margin-bottom: 1px;
}
.lean-left         { background: #5b8dee; }
.lean-center-left  { background: #82b4ee; }
.lean-center       { background: var(--muted); }
.lean-center-right { background: #e8a97e; }
.lean-right        { background: var(--love); }

.single { grid-column: 1 / -1; }

@media (min-width: 540px) {
  .article.spanning { grid-column: 1 / -1; }
}

/* ── X Trending ──────────────────────────────────────────── */
.x-divider {
  border: none;
  border-top: 1px solid var(--overlay);
  margin: 0.85rem 0;
}

.x-item {
  display: flex;
  gap: 0.55rem;
  align-items: flex-start;
  padding: 0.5rem 0.65rem;
  background: var(--surface);
  border: 1px solid var(--overlay);
  border-radius: 6px;
  text-decoration: none;
  color: var(--text);
  transition: background 0.15s ease, border-color 0.2s ease;
  margin-bottom: 0.3rem;
}

.x-item:hover {
  background: var(--overlay);
  border-color: var(--foam);
}

.x-rank {
  font-size: 0.65rem;
  font-weight: 700;
  color: var(--foam);
  min-width: 1rem;
  padding-top: 1px;
  flex-shrink: 0;
}

.x-topic {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.x-meta {
  font-size: 0.65rem;
  color: var(--muted);
  margin-top: 2px;
}

/* ── Home page ───────────────────────────────────────────── */
.home-main {
  max-width: 860px;
  margin: 2.5rem auto;
  padding: 0 1.25rem;
}

.home-hero {
  margin-bottom: 2.5rem;
}

.home-hero h2 {
  font-size: clamp(1.5rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--text);
  line-height: 1.25;
  margin-bottom: 0.85rem;
  letter-spacing: -0.02em;
}

.home-hero p {
  font-size: 0.95rem;
  color: var(--subtle);
  line-height: 1.7;
  max-width: 520px;
  margin-bottom: 1.5rem;
}

.home-cta {
  display: inline-block;
  background: var(--iris);
  color: var(--base);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.6rem 1.2rem;
  border-radius: 8px;
  text-decoration: none;
  transition: opacity 0.15s ease;
}

.home-cta:hover { opacity: 0.82; }

.home-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 0.75rem;
}

.home-card {
  background: var(--surface);
  border: 1px solid var(--overlay);
  border-left: 3px solid var(--overlay);
  border-radius: 10px;
  padding: 1rem 1.1rem;
  transition: border-color 0.2s ease;
}

.home-card:hover { border-color: var(--hl-high); }
.home-card.accent-love  { border-left-color: var(--love); }
.home-card.accent-pine  { border-left-color: var(--pine); }
.home-card.accent-foam  { border-left-color: var(--foam); }
.home-card.accent-gold  { border-left-color: var(--gold); }
.home-card.accent-iris  { border-left-color: var(--iris); }
.home-card.accent-rose  { border-left-color: var(--rose); }
.home-card.accent-foam-x { border-left-color: var(--foam); }

.home-card-label {
  font-size: 0.62rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 0.5rem;
}

.home-card p {
  font-size: 0.78rem;
  color: var(--subtle);
  line-height: 1.55;
}

/* ── Contact page ────────────────────────────────────────── */
.contact-main {
  max-width: 540px;
  margin: 2.5rem auto;
  padding: 0 1.25rem;
}

.contact-wrap h2 {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.contact-wrap > p {
  font-size: 0.88rem;
  color: var(--subtle);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.contact-form .field {
  margin-bottom: 1.1rem;
}

.contact-form label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--subtle);
  margin-bottom: 0.35rem;
  letter-spacing: 0.02em;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--overlay);
  border-radius: 8px;
  padding: 0.6rem 0.85rem;
  font-size: 0.88rem;
  color: var(--text);
  font-family: inherit;
  transition: border-color 0.2s ease;
  outline: none;
  resize: vertical;
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--iris);
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: var(--muted);
}

.submit-btn {
  background: var(--iris);
  color: var(--base);
  border: none;
  border-radius: 8px;
  padding: 0.6rem 1.4rem;
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: opacity 0.15s ease;
}

.submit-btn:hover { opacity: 0.82; }

/* ── HN pager ────────────────────────────────────────────── */
.hn-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.75rem;
}

.hn-label {
  margin-bottom: 0 !important;
  border-bottom: none !important;
  padding-bottom: 0 !important;
}

.hn-tabs {
  display: flex;
  gap: 2px;
  background: var(--overlay);
  border-radius: 6px;
  padding: 2px;
}

.hn-tab {
  background: none;
  border: none;
  border-radius: 4px;
  padding: 0.18rem 0.5rem;
  font-size: 0.63rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--muted);
  cursor: pointer;
  font-family: inherit;
  transition: background 0.15s ease, color 0.15s ease;
}

.hn-tab.active {
  background: var(--surface);
  color: var(--iris);
}

/* ── HN Sidebar ──────────────────────────────────────────── */
#hn-container {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

@media (min-width: 860px) {
  #hn-container {
    position: sticky;
    top: 4.5rem;
  }
}

.hn-item {
  display: flex;
  gap: 0.6rem;
  align-items: flex-start;
  padding: 0.65rem 0.75rem;
  background: var(--surface);
  border: 1px solid var(--overlay);
  border-radius: 8px;
  text-decoration: none;
  color: var(--text);
  transition: background 0.15s ease, border-color 0.2s ease, transform 0.15s ease;
}

.hn-item:hover {
  background: var(--overlay);
  border-color: var(--iris);
  transform: translateX(2px);
}

.hn-rank {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--iris);
  min-width: 1.1rem;
  padding-top: 1px;
  flex-shrink: 0;
}

.hn-title {
  font-size: 0.8rem;
  font-weight: 500;
  line-height: 1.4;
  color: var(--text);
  margin-bottom: 0.25rem;
}

.hn-meta {
  font-size: 0.68rem;
  color: var(--muted);
}

/* ── Footer ──────────────────────────────────────────────── */
footer {
  text-align: center;
  padding: 2.5rem 1rem;
  font-size: 0.72rem;
  color: var(--muted);
  letter-spacing: 0.02em;
}

.error {
  color: var(--love);
  font-size: 0.9rem;
  padding: 1rem;
}

/* ── Reduced motion ──────────────────────────────────────── */
@media (prefers-reduced-motion: reduce) {
  .fade-in { animation: none; opacity: 1; }
  .article, .chevron, .expanded { transition: none; }
  .article:hover { transform: none; }
}