/* =========================================================================
   Outlook Integration · Release notes
   Visual identity mirrors the in-product UI (monday / @vibe/core).
   Tokens copied from outlook-addin-front/src/styles/setup/variables.css
   ========================================================================= */

@font-face {
  font-family: "poppins-bold";
  src: url("./assets/fonts/Poppins-Bold.ttf") format("truetype");
  font-display: swap;
}
@font-face {
  font-family: "poppins-regular";
  src: url("./assets/fonts/Poppins-Regular.ttf") format("truetype");
  font-display: swap;
}
@font-face {
  font-family: "figtree-normal";
  src: url("./assets/fonts/Figtree-Regular.ttf") format("truetype");
  font-display: swap;
}
@font-face {
  font-family: "figtree-bold";
  src: url("./assets/fonts/Figtree-Bold.ttf") format("truetype");
  font-display: swap;
}
@font-face {
  font-family: "figtree-light";
  src: url("./assets/fonts/Figtree-Light.ttf") format("truetype");
  font-display: swap;
}

:root {
  /* Color (matches frontend :root.light-mode) */
  --primary-color: #0073ea;
  --primary-hover-color: #0060b9;
  --primary-selected-color: #cce5ff;
  --primary-text-color: #323338;
  --secondary-text-color: #676879;
  --primary-background-color: #ffffff;
  --secondary-background-color: #ffffff;
  --grey-background-color: #f6f7fb;
  --ui-border-color: #c3c6d4;
  --positive-color: #00854d;
  --warning-color: #ffcb00;
  --negative-color: #d83a52;

  /* Chip palette (page-specific, derived from above) */
  --chip-feature-bg: #cce5ff;
  --chip-feature-fg: #0060b9;
  --chip-improve-bg: #fff4d6;
  --chip-improve-fg: #8a6500;
  --chip-fix-bg: #ffe1e6;
  --chip-fix-fg: #a01d33;
  --chip-misc-bg: #eef0f5;
  --chip-misc-fg: #676879;

  /* Spacing */
  --spacing-xs: 4px;
  --spacing-small: 8px;
  --spacing-medium: 16px;
  --spacing-large: 24px;
  --spacing-xl: 32px;
  --spacing-xxl: 48px;
  --spacing-xxxl: 64px;

  /* Radius */
  --border-radius-small: 4px;
  --border-radius-medium: 8px;
  --border-radius-big: 16px;

  /* Shadow */
  --box-shadow-xs: 0px 4px 6px -4px rgba(0, 0, 0, 0.1);
  --box-shadow-small: 0px 4px 8px rgba(0, 0, 0, 0.08);
  --box-shadow-medium: 0px 6px 20px rgba(0, 0, 0, 0.1);

  /* Motion */
  --motion-productive-medium: 100ms;
  --motion-productive-long: 150ms;
  --motion-timing-enter: cubic-bezier(0, 0, 0.35, 1);
  --motion-timing-transition: cubic-bezier(0.4, 0, 0.2, 1);
}

/* ---------- Reset / base ---------- */

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "figtree-normal", "Roboto", "Noto Sans Hebrew", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--primary-text-color);
  background: var(--grey-background-color);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

a {
  color: var(--primary-color);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  transition: color var(--motion-productive-long) var(--motion-timing-transition);
}
a:hover {
  color: var(--primary-hover-color);
  text-decoration-thickness: 2px;
}

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

p {
  margin: 0;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

b,
strong {
  font-family: "figtree-bold", "Roboto", system-ui, sans-serif;
  font-weight: 700;
}

/* ---------- Page header ---------- */

.page-head {
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--spacing-xxxl) var(--spacing-large) var(--spacing-xxl);
  text-align: left;
}

.page-mark {
  width: 64px;
  height: 64px;
  display: block;
  margin: 0 0 var(--spacing-large);
  border-radius: var(--border-radius-medium);
  box-shadow: 0 8px 24px -10px rgba(0, 115, 234, 0.35), 0 1px 0 rgba(0, 0, 0, 0.04);
  background: var(--secondary-background-color);
}

.page-title {
  font-family: "poppins-bold", "Roboto", system-ui, sans-serif;
  font-size: clamp(24px, 3vw, 32px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.005em;
  color: var(--primary-text-color);
  margin: 0;
}
.page-title-sep {
  display: inline-block;
  margin: 0 6px;
  color: var(--ui-border-color);
}
.page-title-soft {
  color: var(--secondary-text-color);
  font-weight: 700;
}

.page-divider {
  max-width: 1180px;
  height: 1px;
  margin: 0 auto var(--spacing-xl);
  background: var(--ui-border-color);
  opacity: 0.6;
}

/* ---------- Layout ---------- */

.layout {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 var(--spacing-large) var(--spacing-xxxl);
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: var(--spacing-xxxl);
  align-items: start;
}

/* ---------- Sidebar ---------- */

.sidebar {
  position: sticky;
  top: var(--spacing-large);
  align-self: start;
  background: var(--secondary-background-color);
  border: 1px solid var(--ui-border-color);
  border-radius: var(--border-radius-big);
  padding: var(--spacing-medium);
  box-shadow: var(--box-shadow-xs);
  max-height: calc(100vh - var(--spacing-xl));
  display: flex;
  flex-direction: column;
  gap: var(--spacing-medium);
}

.sidebar-nav {
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 2px;
  padding-right: 2px;
}
.sidebar-nav::-webkit-scrollbar {
  width: 6px;
}
.sidebar-nav::-webkit-scrollbar-thumb {
  background: var(--ui-border-color);
  border-radius: 999px;
}

.sidebar-era {
  font-family: "figtree-bold", system-ui, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--secondary-text-color);
  margin: var(--spacing-medium) 0 var(--spacing-xs) var(--spacing-small);
}
.sidebar-era:first-child {
  margin-top: 0;
}

.sidebar-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-small);
  padding: 8px 12px;
  font-family: "figtree-normal", system-ui, sans-serif;
  font-size: 13px;
  font-weight: 500;
  color: var(--secondary-text-color);
  text-decoration: none;
  border-radius: var(--border-radius-small);
  border-left: 3px solid transparent;
  transition: background var(--motion-productive-long), color var(--motion-productive-long), border-color var(--motion-productive-long);
}
.sidebar-link:hover {
  background: var(--grey-background-color);
  color: var(--primary-text-color);
  text-decoration: none;
}
.sidebar-link.is-active {
  background: var(--primary-selected-color);
  color: var(--primary-color);
  border-left-color: var(--primary-color);
  font-family: "figtree-bold", system-ui, sans-serif;
  font-weight: 700;
}

.sidebar-tag {
  font-family: "figtree-bold", system-ui, sans-serif;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--primary-color);
  background: var(--primary-selected-color);
  padding: 2px 6px;
  border-radius: 999px;
}
.sidebar-link.is-active .sidebar-tag {
  background: var(--primary-color);
  color: #ffffff;
}

/* ---------- Releases ---------- */

.releases {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-large);
  padding-left: var(--spacing-large);
}
.releases::before {
  content: "";
  position: absolute;
  left: 7px;
  top: 32px;
  bottom: 32px;
  width: 1px;
  background: var(--ui-border-color);
}

.release {
  position: relative;
  background: var(--secondary-background-color);
  border: 1px solid var(--ui-border-color);
  border-radius: var(--border-radius-big);
  padding: var(--spacing-xl);
  box-shadow: var(--box-shadow-xs);
  transition: box-shadow var(--motion-productive-long), transform var(--motion-productive-long);
  opacity: 0;
  transform: translateY(8px);
  animation: release-in 360ms var(--motion-timing-enter) forwards;
}
.release:hover {
  box-shadow: var(--box-shadow-small);
}
.release::before {
  content: "";
  position: absolute;
  top: 38px;
  left: -28px;
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--secondary-background-color);
  border: 2px solid var(--ui-border-color);
  transition: background var(--motion-productive-long), border-color var(--motion-productive-long);
}
.release:hover::before {
  border-color: var(--primary-color);
}

.release.is-hidden {
  display: none;
}

/* Stagger first 8 only — rest are revealed by IntersectionObserver */
.release:nth-child(1) { animation-delay: 0ms; }
.release:nth-child(2) { animation-delay: 40ms; }
.release:nth-child(3) { animation-delay: 80ms; }
.release:nth-child(4) { animation-delay: 120ms; }
.release:nth-child(5) { animation-delay: 160ms; }
.release:nth-child(6) { animation-delay: 200ms; }
.release:nth-child(7) { animation-delay: 240ms; }
.release:nth-child(8) { animation-delay: 280ms; }
.release:nth-child(n + 9) {
  animation: none;
}
.release:nth-child(n + 9).is-visible {
  animation: release-in 360ms var(--motion-timing-enter) forwards;
}

@keyframes release-in {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Hero release (latest) */
.release-hero {
  padding: var(--spacing-xxl) var(--spacing-xl);
  background: linear-gradient(180deg, #ffffff 0%, #f6faff 100%);
  border-color: rgba(0, 115, 234, 0.25);
  box-shadow: 0 12px 32px -20px rgba(0, 115, 234, 0.35);
  overflow: hidden;
}
.release-hero::after {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: var(--primary-color);
  border-top-left-radius: var(--border-radius-big);
  border-top-right-radius: var(--border-radius-big);
}
.release-hero::before {
  background: var(--primary-color);
  border-color: var(--primary-color);
  width: 12px;
  height: 12px;
  left: -29px;
  top: 56px;
  box-shadow: 0 0 0 4px rgba(0, 115, 234, 0.15);
}

/* Release header */
.release-head {
  display: flex;
  align-items: center;
  gap: var(--spacing-medium);
  flex-wrap: wrap;
  margin-bottom: var(--spacing-large);
}
.release-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: "figtree-bold", system-ui, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #ffffff;
  background: var(--primary-color);
  padding: 5px 10px;
  border-radius: 999px;
}
.release-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #ffffff;
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 0.6; transform: scale(0.85); }
  50%      { opacity: 1;   transform: scale(1.15); }
}
.release-version {
  font-family: "poppins-bold", "Roboto", system-ui, sans-serif;
  font-size: 26px;
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.01em;
  color: var(--primary-text-color);
  margin: 0;
}
.release-hero .release-version {
  font-size: 40px;
}
.release-rule {
  flex: 1;
  height: 1px;
  background: var(--ui-border-color);
  opacity: 0.7;
}

/* Release intro paragraph (V4.00) */
.release-intro {
  margin-bottom: var(--spacing-large);
  padding: var(--spacing-medium) var(--spacing-medium);
  background: var(--grey-background-color);
  border-left: 3px solid var(--primary-color);
  border-radius: var(--border-radius-small);
}
.release-intro h3 {
  font-family: "poppins-bold", system-ui, sans-serif;
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 var(--spacing-xs);
  color: var(--primary-text-color);
}
.release-intro p {
  margin: 0;
  font-size: 14px;
  color: var(--secondary-text-color);
}

/* Feature list */
.release-features {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-large);
}
.feature {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-small);
}
.feature p {
  font-family: "figtree-normal", system-ui, sans-serif;
  font-size: 15px;
  line-height: 1.65;
  color: var(--primary-text-color);
}

/* Chips */
.chip {
  align-self: flex-start;
  display: inline-flex;
  align-items: center;
  font-family: "figtree-bold", system-ui, sans-serif;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--chip-misc-bg);
  color: var(--chip-misc-fg);
  white-space: nowrap;
  margin-bottom: var(--spacing-xs);
}
.chip-feature { background: var(--chip-feature-bg); color: var(--chip-feature-fg); }
.chip-improve { background: var(--chip-improve-bg); color: var(--chip-improve-fg); }
.chip-fix     { background: var(--chip-fix-bg);     color: var(--chip-fix-fg); }
.chip-misc    { background: var(--chip-misc-bg);    color: var(--chip-misc-fg); }

/* Figure (image wrapper) */
.release-figure {
  margin: var(--spacing-small) 0 0;
  padding: 0;
  max-width: 250px;
  border: 1px solid var(--ui-border-color);
  border-radius: var(--border-radius-medium);
  overflow: hidden;
  background: var(--grey-background-color);
  box-shadow: var(--box-shadow-xs);
}
.release-figure.is-narrow {
  max-width: 150px;
}
.release-figure img {
  display: block;
  width: 100%;
  height: auto;
}

/* Mobile-support sub-list (V4.35) */
.mobile-support {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-medium);
  margin-top: var(--spacing-small);
  counter-reset: step;
}
.mobile-support > li {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-small);
  padding-left: var(--spacing-large);
  position: relative;
  font-size: 14px;
  color: var(--primary-text-color);
}
.mobile-support > li::before {
  counter-increment: step;
  content: counter(step);
  position: absolute;
  left: 0;
  top: 1px;
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--primary-selected-color);
  color: var(--primary-color);
  font-family: "figtree-bold", system-ui, sans-serif;
  font-size: 11px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

/* ---------- Footer ---------- */

.page-foot {
  max-width: 1180px;
  margin: 0 auto;
  padding: var(--spacing-xxxl) var(--spacing-large);
  text-align: center;
  border-top: 1px solid var(--ui-border-color);
}
.page-foot-thanks {
  font-family: "poppins-bold", system-ui, sans-serif;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--primary-text-color);
  margin: 0 0 var(--spacing-medium);
}
.page-foot img {
  margin: 0 auto;
  max-width: 200px;
  opacity: 0.85;
}

/* ---------- Mobile sidebar toggle (only renders on small screens) ---------- */

.mobile-toggle { display: none; }

/* ---------- Responsive ---------- */

@media (max-width: 960px) {
  .layout {
    grid-template-columns: 1fr;
    gap: var(--spacing-xl);
  }
  .sidebar {
    position: static;
    max-height: none;
  }
  .sidebar-nav {
    max-height: 280px;
  }
  .release-hero .release-version {
    font-size: 32px;
  }
}

@media (max-width: 720px) {
  .page-head {
    padding: var(--spacing-xl) var(--spacing-medium) var(--spacing-large);
  }
  .layout {
    padding: 0 var(--spacing-medium) var(--spacing-xl);
    gap: var(--spacing-large);
  }
  .releases {
    padding-left: var(--spacing-medium);
  }
  .releases::before {
    left: 3px;
  }
  .release {
    padding: var(--spacing-large);
    border-radius: var(--border-radius-medium);
  }
  .release::before {
    left: -20px;
    top: 28px;
    width: 8px;
    height: 8px;
  }
  .release-hero {
    padding: var(--spacing-xl) var(--spacing-large);
  }
  .release-hero .release-version {
    font-size: 28px;
  }
  .release-version {
    font-size: 22px;
  }

  /* Sticky compact sidebar */
  .sidebar {
    position: sticky;
    top: 0;
    z-index: 10;
    border-radius: 0;
    border-left: 0;
    border-right: 0;
    border-top: 0;
    padding: var(--spacing-small) var(--spacing-medium);
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: saturate(160%) blur(8px);
    -webkit-backdrop-filter: saturate(160%) blur(8px);
    margin: 0 calc(-1 * var(--spacing-medium)) var(--spacing-medium);
    gap: var(--spacing-small);
  }
  .sidebar-nav {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--motion-productive-long) var(--motion-timing-transition);
  }
  .sidebar.is-open .sidebar-nav {
    max-height: 60vh;
    overflow-y: auto;
    padding-top: var(--spacing-small);
  }
  .mobile-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--spacing-small);
    width: 100%;
    height: 36px;
    padding: 0 var(--spacing-medium);
    font-family: "figtree-bold", system-ui, sans-serif;
    font-size: 13px;
    color: var(--primary-text-color);
    background: var(--grey-background-color);
    border: 1px solid var(--ui-border-color);
    border-radius: var(--border-radius-medium);
    cursor: pointer;
  }
  .mobile-toggle::after {
    content: "▾";
    transition: transform var(--motion-productive-long);
  }
  .sidebar.is-open .mobile-toggle::after {
    transform: rotate(180deg);
  }

  .page-foot {
    padding: var(--spacing-xl) var(--spacing-medium);
  }
}

/* ---------- Reduced motion ---------- */

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .release {
    opacity: 1;
    transform: none;
  }
  .release-pill::before {
    animation: none;
  }
  html {
    scroll-behavior: auto;
  }
}