/* ============================================================
   Changelog — Release notes timeline
   "Computer / terminal" flavour on the site's cream-white glass:
   monospace metadata, a faint tech grid, a glowing timeline spine
   and smooth scroll-reveal motion.
   Relies on: variables.css, base.css, animations.css, home.css (navbar/footer)
   ============================================================ */

.cl-page {
  --cl-mono: 'JetBrains Mono', var(--font-family-mono);
  --cl-spine-x: 156px;            /* horizontal position of the timeline spine */
  min-height: 100vh;
  min-height: 100dvh;
  background:
    radial-gradient(1100px 560px at 82% -12%, rgba(88, 86, 214, 0.07), transparent 60%),
    radial-gradient(900px 500px at -12% 8%, rgba(0, 113, 227, 0.07), transparent 55%),
    var(--color-bg-primary);
}

/* ---- Ambient background: orbs + faint tech grid --------------- */
.cl-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.cl-grid {
  position: absolute;
  inset: -2px;
  background-image:
    linear-gradient(to right, rgba(0, 113, 227, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(0, 113, 227, 0.05) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
  -webkit-mask-image: radial-gradient(circle at 50% 20%, #000 0%, transparent 78%);
  animation: clGridDrift 24s ease-in-out infinite alternate;
  will-change: transform;
}
.cl-orb {
  position: absolute;
  border-radius: var(--radius-full);
  filter: blur(95px);
  opacity: 0.4;
  animation: clOrbFloat 18s ease-in-out infinite;
  will-change: transform;
}
.cl-orb--1 {
  width: 440px; height: 440px;
  background: radial-gradient(circle, rgba(0, 113, 227, 0.42), transparent 70%);
  top: -150px; right: -110px;
  animation-duration: 19s;
}
.cl-orb--2 {
  width: 360px; height: 360px;
  background: radial-gradient(circle, rgba(175, 82, 222, 0.34), transparent 70%);
  bottom: -130px; left: -90px;
  animation-delay: -7s; animation-duration: 23s;
}
.cl-orb--3 {
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(10, 162, 176, 0.28), transparent 70%);
  top: 48%; left: 60%;
  animation-delay: -12s; animation-duration: 27s;
}

/* ---- Page shell ---------------------------------------------- */
.cl-main {
  position: relative;
  z-index: var(--z-base);
  max-width: var(--container-narrow);
  margin: 0 auto;
  padding: calc(var(--navbar-height) + var(--spacing-2xl)) var(--spacing-lg) var(--spacing-4xl);
}

/* ============================================================
   Hero
   ============================================================ */
.cl-hero {
  margin-bottom: var(--spacing-2xl);
}
.cl-hero__eyebrow {
  display: inline-flex;
  align-items: baseline;
  gap: 2px;
  font-family: var(--cl-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-medium);
  color: var(--color-accent-primary);
  letter-spacing: var(--letter-spacing-wide);
  margin-bottom: var(--spacing-md);
}
.cl-hero__eyebrow .cl-slash { opacity: 0.55; margin-right: 6px; }
.cl-caret {
  display: inline-block;
  width: 8px;
  height: 1.05em;
  margin-left: 3px;
  transform: translateY(2px);
  background: var(--color-accent-primary);
  border-radius: 1px;
  animation: clCaretBlink 1.15s steps(1) infinite;
}

.cl-hero__title {
  font-size: var(--font-size-5xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
  line-height: var(--line-height-tight);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}
.cl-hero__subtitle {
  font-size: var(--font-size-lg);
  color: var(--color-text-secondary);
  max-width: 620px;
  line-height: var(--line-height-normal);
}

/* ---- Hero stat tiles ----------------------------------------- */
.cl-stats {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
}
.cl-stat {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-lg);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.cl-stat:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--glass-border-hover);
}
.cl-stat__value {
  font-family: var(--cl-mono);
  font-size: var(--font-size-2xl);
  font-weight: var(--font-weight-bold);
  letter-spacing: var(--letter-spacing-tight);
  line-height: 1.1;
  color: var(--color-text-primary);
  display: flex;
  align-items: baseline;
  gap: 4px;
}
.cl-stat__value .cl-stat__prefix {
  font-size: var(--font-size-base);
  color: var(--color-accent-primary);
  font-weight: var(--font-weight-semibold);
}
.cl-stat__label {
  margin-top: var(--spacing-2xs);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-medium);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-text-tertiary);
}

/* ============================================================
   Toolbar — search + date + category filters
   ============================================================ */
.cl-toolbar {
  position: sticky;
  top: calc(var(--navbar-height) + var(--spacing-sm));
  z-index: 10;
  margin-bottom: var(--spacing-2xl);
  padding: var(--spacing-md);
  border-radius: var(--radius-xl);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-glass);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
}
.cl-toolbar__row {
  display: flex;
  gap: var(--spacing-sm);
  flex-wrap: wrap;
}

/* Search field */
.cl-search {
  position: relative;
  flex: 1 1 260px;
  min-width: 0;
}
.cl-search__icon {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px; height: 16px;
  color: var(--color-text-tertiary);
  pointer-events: none;
}
.cl-search__input {
  width: 100%;
  height: 44px;
  padding: 0 40px 0 40px;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: inherit;
  font-size: var(--font-size-sm);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.cl-search__input::placeholder { color: var(--color-text-tertiary); }
.cl-search__input:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.16);
}
.cl-search__clear {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 26px; height: 26px;
  display: none;
  place-items: center;
  border: none;
  border-radius: var(--radius-full);
  background: var(--color-bg-tertiary);
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: background var(--transition-fast), color var(--transition-fast);
}
.cl-search__clear.is-shown { display: grid; }
.cl-search__clear:hover { background: var(--color-accent-primary); color: #fff; }
.cl-search__clear svg { width: 13px; height: 13px; }

/* Date field */
.cl-date {
  position: relative;
  flex: 0 0 auto;
}
.cl-date__input {
  height: 44px;
  padding: 0 var(--spacing-md);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: var(--color-bg-primary);
  color: var(--color-text-primary);
  font-family: var(--cl-mono);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}
.cl-date__input:focus {
  outline: none;
  border-color: var(--color-accent-primary);
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.16);
}
.cl-date__input::-webkit-calendar-picker-indicator { cursor: pointer; opacity: 0.6; }
.cl-date__input:hover::-webkit-calendar-picker-indicator { opacity: 1; }

/* Category chips */
.cl-filters {
  display: flex;
  gap: var(--spacing-xs);
  flex-wrap: wrap;
  margin-top: var(--spacing-sm);
}
.cl-chip {
  --chip: var(--color-accent-primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 32px;
  padding: 0 var(--spacing-md);
  border-radius: var(--radius-full);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text-secondary);
  font-family: inherit;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-wide);
  cursor: pointer;
  transition: all var(--transition-fast);
}
.cl-chip__dot {
  width: 8px; height: 8px;
  border-radius: var(--radius-full);
  background: var(--chip);
}
.cl-chip:hover {
  border-color: var(--chip);
  color: var(--color-text-primary);
  transform: translateY(-1px);
}
.cl-chip.is-active {
  color: #fff;
  background: var(--chip);
  border-color: var(--chip);
}
.cl-chip.is-active .cl-chip__dot { background: rgba(255, 255, 255, 0.9); }
.cl-chip[data-type="all"] { --chip: #64748b; }
.cl-chip[data-type="feature"] { --chip: #0071e3; }
.cl-chip[data-type="improve"] { --chip: #5e5ce6; }
.cl-chip[data-type="fix"]     { --chip: #ff9500; }
.cl-chip[data-type="content"] { --chip: #0aa2b0; }
.cl-chip[data-type="design"]  { --chip: #af52de; }

/* Toolbar meta row: result count + reset */
.cl-toolbar__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-sm);
  margin-top: var(--spacing-sm);
  padding-top: var(--spacing-sm);
  border-top: 1px solid var(--color-border);
}
.cl-count {
  font-family: var(--cl-mono);
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}
.cl-count strong {
  color: var(--color-text-primary);
  font-weight: var(--font-weight-bold);
}
.cl-reset {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border: none;
  background: transparent;
  color: var(--color-accent-primary);
  font-family: inherit;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  cursor: pointer;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-fast), color var(--transition-fast);
}
.cl-reset.is-shown { opacity: 1; pointer-events: auto; }
.cl-reset:hover { color: var(--color-accent-secondary); }
.cl-reset svg { width: 13px; height: 13px; }

/* ============================================================
   Timeline
   ============================================================ */
.cl-timeline {
  position: relative;
}
/* Glowing spine */
.cl-timeline::before {
  content: '';
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: var(--cl-spine-x);
  width: 2px;
  transform: translateX(-50%);
  background: linear-gradient(180deg,
    rgba(0, 113, 227, 0.15) 0%,
    rgba(0, 113, 227, 0.85) 12%,
    rgba(94, 92, 230, 0.85) 45%,
    rgba(175, 82, 222, 0.7) 78%,
    rgba(175, 82, 222, 0.1) 100%);
  border-radius: var(--radius-full);
  box-shadow: 0 0 14px rgba(0, 113, 227, 0.35);
}
/* Downward shimmer travelling along the spine */
.cl-timeline::after {
  content: '';
  position: absolute;
  left: var(--cl-spine-x);
  top: 0;
  width: 2px;
  height: 90px;
  transform: translateX(-50%);
  background: linear-gradient(180deg, transparent, rgba(255, 255, 255, 0.9), transparent);
  border-radius: var(--radius-full);
  filter: blur(1px);
  opacity: 0.7;
  animation: clSpineShimmer 4.5s cubic-bezier(0.4, 0, 0.2, 1) infinite;
}

/* Entry (one calendar day) */
.cl-entry {
  position: relative;
  display: grid;
  grid-template-columns: calc(var(--cl-spine-x) - 30px) 1fr;
  column-gap: 44px;
  padding-bottom: var(--spacing-2xl);
}
.cl-entry:last-child { padding-bottom: 0; }

/* Node marker on the spine */
.cl-entry__marker {
  position: absolute;
  left: var(--cl-spine-x);
  top: 6px;
  width: 15px; height: 15px;
  transform: translateX(-50%);
  border-radius: var(--radius-full);
  background: var(--color-bg-primary);
  border: 2px solid var(--color-accent-primary);
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.12);
  z-index: 1;
}
.cl-entry__marker::after {
  content: '';
  position: absolute;
  inset: 3px;
  border-radius: var(--radius-full);
  background: var(--color-accent-primary);
}
.cl-entry--latest .cl-entry__marker {
  border-color: var(--color-accent-secondary);
  animation: clNodePulse 2.4s ease-out infinite;
}
.cl-entry--latest .cl-entry__marker::after { background: var(--color-accent-secondary); }

/* Left aside — mono date */
.cl-entry__aside {
  text-align: right;
  padding-top: 2px;
}
.cl-entry__date {
  font-family: var(--cl-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  letter-spacing: -0.01em;
  line-height: 1.3;
}
.cl-entry__weekday {
  display: block;
  margin-top: 2px;
  font-size: var(--font-size-xs);
  color: var(--color-text-tertiary);
}
.cl-entry__rel {
  display: inline-block;
  margin-top: var(--spacing-xs);
  padding: 2px var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: 0.68rem;
  font-weight: var(--font-weight-semibold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  color: var(--color-accent-primary);
  background: rgba(0, 113, 227, 0.1);
}

/* Card */
.cl-card {
  position: relative;
  padding: var(--spacing-lg) var(--spacing-xl);
  border-radius: var(--radius-xl);
  background: var(--glass-bg-strong);
  border: 1px solid var(--glass-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}
.cl-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: var(--glass-border-hover);
}

.cl-card__head {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-md);
}
.cl-version {
  font-family: var(--cl-mono);
  font-size: var(--font-size-sm);
  font-weight: var(--font-weight-bold);
  letter-spacing: 0;
  padding: 3px var(--spacing-sm);
  border-radius: var(--radius-sm);
  color: var(--color-accent-primary);
  background: rgba(0, 113, 227, 0.1);
  border: 1px solid rgba(0, 113, 227, 0.2);
}
.cl-badge-latest {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--letter-spacing-wide);
  padding: 3px var(--spacing-sm);
  border-radius: var(--radius-full);
  color: #fff;
  background: linear-gradient(135deg, #0a84ff, #5e5ce6);
  box-shadow: 0 2px 8px rgba(94, 92, 230, 0.35);
}
.cl-badge-latest::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: var(--radius-full);
  background: #fff;
  animation: clDotPulse 1.8s ease-in-out infinite;
}

/* Change rows */
.cl-changes {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}
.cl-change {
  --tag: var(--color-accent-primary);
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: start;
  gap: var(--spacing-sm);
}
.cl-change[data-type="feature"] { --tag: #0071e3; }
.cl-change[data-type="improve"] { --tag: #5e5ce6; }
.cl-change[data-type="fix"]     { --tag: #ff9500; }
.cl-change[data-type="content"] { --tag: #0aa2b0; }
.cl-change[data-type="design"]  { --tag: #af52de; }

.cl-tag {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px var(--spacing-sm);
  border-radius: var(--radius-full);
  font-size: var(--font-size-xs);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-wide);
  white-space: nowrap;
  color: var(--tag);
  background: color-mix(in srgb, var(--tag) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--tag) 24%, transparent);
}
.cl-tag__dot {
  width: 7px; height: 7px;
  border-radius: var(--radius-full);
  background: var(--tag);
}
.cl-change__text {
  font-size: var(--font-size-base);
  line-height: var(--line-height-normal);
  color: var(--color-text-secondary);
  padding-top: 1px;
}
.cl-change__text mark {
  background: rgba(255, 214, 0, 0.4);
  color: inherit;
  border-radius: 3px;
  padding: 0 1px;
}

/* Hidden entries (filtered out) */
.cl-entry[hidden] { display: none; }

/* ============================================================
   Empty state
   ============================================================ */
.cl-empty {
  display: none;
  text-align: center;
  padding: var(--spacing-3xl) var(--spacing-lg);
  background: var(--glass-bg);
  border: 1px dashed var(--color-border-hover);
  border-radius: var(--radius-xl);
}
.cl-empty.is-shown { display: block; animation: clFadeIn var(--transition-base) ease; }
.cl-empty__icon {
  width: 52px; height: 52px;
  margin: 0 auto var(--spacing-md);
  display: grid;
  place-items: center;
  border-radius: var(--radius-full);
  background: var(--color-bg-secondary);
  color: var(--color-text-tertiary);
}
.cl-empty__icon svg { width: 26px; height: 26px; }
.cl-empty__title {
  font-size: var(--font-size-lg);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-xs);
}
.cl-empty__hint {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
}

/* ============================================================
   Keyframes
   ============================================================ */
@keyframes clOrbFloat {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50%      { transform: translate(26px, -30px) scale(1.06); }
}
@keyframes clGridDrift {
  from { transform: translate(0, 0); }
  to   { transform: translate(-24px, -18px); }
}
@keyframes clCaretBlink {
  0%, 49%  { opacity: 1; }
  50%, 100% { opacity: 0; }
}
@keyframes clSpineShimmer {
  0%   { top: -12%; opacity: 0; }
  15%  { opacity: 0.8; }
  85%  { opacity: 0.8; }
  100% { top: 100%; opacity: 0; }
}
@keyframes clNodePulse {
  0%   { box-shadow: 0 0 0 0 rgba(94, 92, 230, 0.4); }
  70%  { box-shadow: 0 0 0 9px rgba(94, 92, 230, 0); }
  100% { box-shadow: 0 0 0 0 rgba(94, 92, 230, 0); }
}
@keyframes clDotPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%      { opacity: 0.5; transform: scale(0.7); }
}
@keyframes clFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 767px) {
  .cl-page { --cl-spine-x: 20px; }
  .cl-main { padding-top: calc(var(--navbar-height) + var(--spacing-xl)); }
  .cl-hero__title { font-size: var(--font-size-4xl); }
  .cl-hero__subtitle { font-size: var(--font-size-base); }

  .cl-stats { grid-template-columns: 1fr; gap: var(--spacing-sm); }
  .cl-stat { padding: var(--spacing-sm) var(--spacing-md); }

  .cl-toolbar { position: static; }
  .cl-search { flex: 1 1 100%; }
  .cl-date, .cl-date__input { width: 100%; }

  /* Single-column timeline: spine hugs the left, date sits above card */
  .cl-entry {
    grid-template-columns: 1fr;
    padding-left: 40px;
    padding-bottom: var(--spacing-xl);
  }
  .cl-entry__marker { top: 4px; }
  .cl-entry__aside {
    text-align: left;
    margin-bottom: var(--spacing-sm);
    display: flex;
    align-items: baseline;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
  }
  .cl-entry__weekday { margin-top: 0; }
  .cl-entry__rel { margin-top: 0; }
  .cl-card { padding: var(--spacing-md) var(--spacing-lg); }
}

@media (max-width: 479px) {
  .cl-main { padding-left: var(--spacing-md); padding-right: var(--spacing-md); }
  .cl-hero__title { font-size: var(--font-size-3xl); }
  .cl-change { grid-template-columns: 1fr; gap: var(--spacing-xs); }
  .cl-change__text { font-size: var(--font-size-sm); }
}

@media (min-width: 1440px) {
  .cl-hero__title { font-size: var(--font-size-6xl); }
}

/* Honour reduced-motion */
@media (prefers-reduced-motion: reduce) {
  .cl-orb,
  .cl-grid,
  .cl-caret,
  .cl-timeline::after,
  .cl-entry--latest .cl-entry__marker,
  .cl-badge-latest::before {
    animation: none !important;
  }
  .cl-stat,
  .cl-card,
  .cl-chip { transition: none !important; }
}