@layer reset, tokens, base, layout, components, utilities;

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

  html {
    -webkit-text-size-adjust: 100%;
    scroll-behavior: smooth;
    overflow-x: clip;
  }

  body,
  h1,
  h2,
  h3,
  p,
  ul,
  button {
    margin: 0;
  }

  button,
  input {
    font: inherit;
    color: inherit;
  }

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

@layer tokens {
  :root {
    --navy: #102044;
    --navy-soft: #3d4d73;
    --muted: #7b889f;
    --muted-2: #9aa6b8;
    --line: #e4ebf4;
    --page: #f7f9fc;
    --surface: #ffffff;
    --ring: #3b82f6;

    --q1: #3b82f6;
    --q1-deep: #2563eb;
    --q1-head: #eaf3ff;
    --q1-border: #d5e6fb;
    --q1-badge: #c5dbf8;
    --q1-badge-text: #2157a8;

    --q2: #2f9a55;
    --q2-deep: #217a41;
    --q2-head: #eaf8ef;
    --q2-border: #cfead8;
    --q2-badge: #d4efdd;
    --q2-badge-text: #2a7a46;

    --q3: #e07022;
    --q3-deep: #c45c14;
    --q3-head: #fff1e6;
    --q3-border: #f5d7bd;
    --q3-badge: #f8ddc6;
    --q3-badge-text: #c45c14;

    --q4: #6d4ec9;
    --q4-deep: #5b3db3;
    --q4-head: #f1ecff;
    --q4-border: #ddd2f7;
    --q4-badge: #e3d9fb;
    --q4-badge-text: #5b3db3;

    --dot-green: #22c55e;
    --dot-purple: #7c3aed;
    --dot-blue: #3b82f6;
    --dot-orange: #f59e0b;
    --dot-red: #ef4444;
    --dot-pink: #ec4899;
    --dot-teal: #14b8a6;
    --dot-cyan: #06b6d4;
    --dot-violet: #8b5cf6;
    --dot-indigo: #6366f1;
    --dot-crimson: #e11d48;
    --dot-navy: #1d4ed8;

    --font: "Plus Jakarta Sans", "Segoe UI", sans-serif;
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.25rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --radius-sm: 0.7rem;
    --radius-md: 1.15rem;
    --radius-lg: 1.4rem;
    --radius-pill: 999px;
    --shadow-card: 0 10px 30px hsl(220 40% 20% / 0.05);
    --shadow-dialog: 0 24px 70px hsl(220 40% 12% / 0.18);
    --ease: cubic-bezier(0.22, 1, 0.36, 1);
    --page-pad: clamp(0.85rem, 2.2vw, 1.5rem);
  }
}

@layer base {
  body {
    min-height: 100dvh;
    font-family: var(--font);
    background:
      radial-gradient(1200px 480px at 50% -120px, hsl(214 100% 96%), transparent 70%),
      var(--page);
    color: var(--navy);
    line-height: 1.5;
  }

  body::after {
    content: "";
    position: fixed;
    inset: 0;
    pointer-events: none;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
    z-index: 20;
  }

  :focus-visible {
    outline: 2px solid var(--ring);
    outline-offset: 3px;
  }

  a {
    color: inherit;
  }
}

@layer layout {
  .page {
    width: min(1560px, 100% - var(--page-pad) * 2);
    max-width: 100%;
    margin-inline: auto;
    padding-block: clamp(1.75rem, 4vw, 3.5rem) 3rem;
    padding-bottom: max(3rem, env(safe-area-inset-bottom));
  }

  .hero {
    text-align: center;
    margin-bottom: clamp(1.25rem, 3vw, 2rem);
  }

  .quarters {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.15rem;
  }

  @media (min-width: 64rem) {
    .quarters {
      grid-template-columns: repeat(2, minmax(0, 1fr));
      gap: 1.35rem;
    }
  }
}

@layer components {
  .skip-link {
    position: absolute;
    left: 1rem;
    top: -4rem;
    z-index: 30;
    background: var(--navy);
    color: white;
    padding: 0.6rem 0.9rem;
    border-radius: 0.5rem;
  }

  .skip-link:focus {
    top: 1rem;
  }

  .hero-title {
    font-size: clamp(1.5rem, 0.95rem + 2.7vw, 3.35rem);
    font-weight: 800;
    letter-spacing: -0.045em;
    line-height: 1.08;
    color: var(--navy);
    text-wrap: balance;
  }

  .hero-sub {
    margin-top: 0.7rem;
    color: var(--navy-soft);
    font-size: clamp(0.98rem, 0.9rem + 0.4vw, 1.18rem);
    font-weight: 500;
  }

  .toolbar {
    display: grid;
    gap: 0.75rem;
    margin-bottom: 0.85rem;
    min-width: 0;
  }

  .search {
    position: relative;
    display: block;
  }

  .search-icon {
    position: absolute;
    left: 0.95rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--muted);
    pointer-events: none;
  }

  .search input {
    width: 100%;
    min-height: 2.75rem;
    padding: 0.65rem 1rem 0.65rem 2.6rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: var(--surface);
    font-size: 1rem;
    box-shadow: 0 1px 0 hsl(220 30% 50% / 0.03);
  }

  .search input::placeholder {
    color: var(--muted-2);
  }

  .search input:focus {
    outline: none;
    border-color: color-mix(in srgb, var(--ring) 55%, var(--line));
    box-shadow: 0 0 0 4px hsl(213 94% 68% / 0.18);
  }

  .chip {
    min-height: 2.75rem;
    padding: 0.35rem 0.85rem;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: var(--surface);
    color: var(--navy-soft);
    font-weight: 650;
    font-size: 0.88rem;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    cursor: pointer;
    transition: background 0.2s var(--ease), color 0.2s var(--ease);
  }

  .chip[aria-pressed="true"] {
    background: var(--navy);
    color: white;
  }

  .chip:hover {
    background: hsl(214 45% 95%);
  }

  .chip[aria-pressed="true"]:hover {
    background: color-mix(in srgb, var(--navy) 88%, white);
  }

  .filters-wrap {
    display: grid;
    gap: 0.45rem;
    margin-bottom: 0.7rem;
  }

  .filters-label {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
  }

  .filters {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
    min-width: 0;
  }

  .chip-dot {
    background: var(--dot);
    width: 0.5rem;
    height: 0.5rem;
    border-radius: 50%;
    background: var(--dot, var(--muted));
    flex-shrink: 0;
  }

  .status {
    min-height: 1.3rem;
    margin-bottom: 0.85rem;
    color: var(--muted);
    font-size: 0.9rem;
    font-weight: 500;
    overflow-wrap: anywhere;
  }

  .quarter {
    background: var(--surface);
    border: 1px solid var(--q-border);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
    display: grid;
    grid-template-rows: auto 1fr;
    min-width: 0;
    animation: rise 0.55s var(--ease) both;
  }

  .quarter:nth-child(2) { animation-delay: 0.06s; }
  .quarter:nth-child(3) { animation-delay: 0.12s; }
  .quarter:nth-child(4) { animation-delay: 0.18s; }

  .quarter[data-quarter="q1"] {
    --q-accent: var(--q1);
    --q-accent-deep: var(--q1-deep);
    --q-head: var(--q1-head);
    --q-border: var(--q1-border);
    --q-badge: var(--q1-badge);
    --q-badge-text: var(--q1-badge-text);
  }

  .quarter[data-quarter="q2"] {
    --q-accent: var(--q2);
    --q-accent-deep: var(--q2-deep);
    --q-head: var(--q2-head);
    --q-border: var(--q2-border);
    --q-badge: var(--q2-badge);
    --q-badge-text: var(--q2-badge-text);
  }

  .quarter[data-quarter="q3"] {
    --q-accent: var(--q3);
    --q-accent-deep: var(--q3-deep);
    --q-head: var(--q3-head);
    --q-border: var(--q3-border);
    --q-badge: var(--q3-badge);
    --q-badge-text: var(--q3-badge-text);
  }

  .quarter[data-quarter="q4"] {
    --q-accent: var(--q4);
    --q-accent-deep: var(--q4-deep);
    --q-head: var(--q4-head);
    --q-border: var(--q4-border);
    --q-badge: var(--q4-badge);
    --q-badge-text: var(--q4-badge-text);
  }

  .quarter-head {
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    grid-template-areas: "id meta year";
    align-items: center;
    gap: 0.55rem 0.75rem;
    padding: 0.95rem 1.05rem;
    background: var(--q-head);
    border-bottom: 1px solid color-mix(in srgb, var(--q-border) 80%, white);
  }

  .quarter-id {
    grid-area: id;
    font-size: clamp(1.7rem, 1.3rem + 1.4vw, 2.5rem);
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 1;
    color: var(--q-accent);
  }

  .quarter-rule {
    display: none;
    width: 1px;
    height: 2.1rem;
    background: color-mix(in srgb, var(--q-accent) 28%, transparent);
  }

  .quarter-meta {
    grid-area: meta;
    min-width: 0;
  }

  .quarter-range {
    font-weight: 800;
    font-size: 1.02rem;
    letter-spacing: -0.02em;
    color: var(--navy);
    overflow-wrap: anywhere;
  }

  .quarter-tagline {
    color: var(--navy-soft);
    font-size: 0.86rem;
    font-weight: 500;
    overflow-wrap: anywhere;
  }

  .quarter-year {
    grid-area: year;
    padding: 0.22rem 0.7rem;
    border-radius: var(--radius-pill);
    background: var(--q-badge);
    color: var(--q-badge-text);
    font-size: 0.78rem;
    font-weight: 700;
  }

  .months {
    display: grid;
    grid-template-columns: 1fr;
    min-width: 0;
  }

  .month {
    min-width: 0;
    padding: 0.85rem 0.7rem 1rem;
    border-top: 1px solid var(--line);
    display: grid;
    align-content: start;
    gap: 0.7rem;
  }

  .month:first-child {
    border-top: 0;
  }

  .month.is-current {
    background: linear-gradient(180deg, color-mix(in srgb, var(--q-head) 55%, white), white 70%);
  }

  .month-name {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    font-weight: 800;
    font-size: 0.88rem;
    letter-spacing: -0.02em;
    color: var(--navy);
  }

  .now-badge {
    padding: 0.12rem 0.5rem;
    border-radius: var(--radius-pill);
    background: var(--navy);
    color: white;
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
  }

  .models {
    display: grid;
    gap: 0.7rem;
    align-content: start;
  }

  .model {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.4rem;
    align-items: start;
    width: 100%;
    min-height: 2.5rem;
    padding: 0.1rem 0.15rem 0.1rem 0;
    border: 0;
    background: transparent;
    text-align: left;
    cursor: pointer;
    border-radius: 0.6rem;
    transition: background 0.2s var(--ease), transform 0.2s var(--ease);
  }

  .model:hover {
    background: hsl(214 60% 97%);
  }

  .model:active {
    transform: translateY(1px);
  }

  .model.is-match .model-name {
    background: linear-gradient(transparent 62%, hsl(48 100% 80%) 62%);
  }

  .model-dot {
    width: 0.5rem;
    height: 0.5rem;
    margin-top: 0.32rem;
    border-radius: 50%;
    background: var(--dot);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--dot) 18%, transparent);
    flex-shrink: 0;
  }

  :is(.model-dot, .detail-dot, .chip-dot)[data-color="green"] { --dot: var(--dot-green); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="purple"] { --dot: var(--dot-purple); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="blue"] { --dot: var(--dot-blue); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="orange"] { --dot: var(--dot-orange); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="red"] { --dot: var(--dot-red); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="pink"] { --dot: var(--dot-pink); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="teal"] { --dot: var(--dot-teal); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="cyan"] { --dot: var(--dot-cyan); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="violet"] { --dot: var(--dot-violet); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="indigo"] { --dot: var(--dot-indigo); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="crimson"] { --dot: var(--dot-crimson); }
  :is(.model-dot, .detail-dot, .chip-dot)[data-color="navy"] { --dot: var(--dot-navy); }

  .model-name {
    display: block;
    font-weight: 800;
    font-size: 0.78rem;
    letter-spacing: -0.03em;
    line-height: 1.25;
    color: var(--navy);
    overflow-wrap: break-word;
  }

  .model-company {
    display: block;
    margin-top: 0.08rem;
    color: var(--muted);
    font-size: 0.7rem;
    font-weight: 500;
  }

  .model.is-expected .model-dot {
    background: transparent;
    box-shadow: inset 0 0 0 2px var(--dot), 0 0 0 3px color-mix(in srgb, var(--dot) 16%, transparent);
  }

  .expected-tag {
    display: inline-block;
    margin-left: 0.2rem;
    padding: 0.05rem 0.35rem;
    border-radius: var(--radius-pill);
    background: hsl(38 90% 92%);
    color: hsl(28 70% 32%);
    font-size: 0.58rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    vertical-align: 0.08em;
  }

  .empty {
    color: var(--muted-2);
    font-size: 0.88rem;
  }

  .empty-dash {
    display: block;
    margin-bottom: 0.15rem;
    color: #c5cedb;
    font-weight: 600;
  }

  .empty-text {
    font-style: italic;
  }

  .site-footer {
    margin-top: 2.4rem;
    padding-top: 1.15rem;
    border-top: 1px solid var(--line);
    text-align: center;
    color: var(--muted-2);
    font-size: 0.78rem;
    font-weight: 500;
    letter-spacing: 0.02em;
  }

  #detail {
    width: min(32rem, calc(100vw - 1.5rem));
    max-width: calc(100vw - 1.5rem);
    padding: 0;
    border: 1px solid var(--line);
    border-radius: 1.25rem;
    box-shadow: var(--shadow-dialog);
    background: var(--surface);
    color: var(--navy);
  }

  #detail::backdrop {
    background: hsl(222 40% 12% / 0.42);
    backdrop-filter: blur(6px);
  }

  .detail-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.9rem 1rem 0 1.15rem;
  }

  .detail-kicker {
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--muted);
  }

  .detail-close {
    width: 2.75rem;
    height: 2.75rem;
    border: 0;
    background: transparent;
    font-size: 1.7rem;
    line-height: 1;
    color: var(--navy-soft);
    cursor: pointer;
    border-radius: 0.7rem;
  }

  .detail-close:hover {
    background: hsl(214 45% 96%);
  }

  .detail-body {
    padding: 0.2rem 1.25rem 1.4rem;
  }

  .detail-title {
    display: flex;
    gap: 0.7rem;
    align-items: flex-start;
    margin-bottom: 0.85rem;
  }

  .detail-title h2 {
    font-size: 1.45rem;
    letter-spacing: -0.03em;
    line-height: 1.15;
  }

  .detail-dot {
    width: 0.85rem;
    height: 0.85rem;
    margin-top: 0.4rem;
    border-radius: 50%;
    background: var(--dot);
    box-shadow: 0 0 0 4px color-mix(in srgb, var(--dot) 16%, transparent);
    flex-shrink: 0;
  }

  .facts {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.55rem;
    margin-bottom: 1rem;
  }

  .fact {
    padding: 0.7rem 0.8rem;
    border-radius: 0.8rem;
    background: hsl(214 45% 97%);
  }

  .fact-label {
    display: block;
    font-size: 0.7rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    margin-bottom: 0.15rem;
  }

  .fact-value {
    font-weight: 700;
  }

  .detail-copy {
    color: var(--navy-soft);
    font-size: 0.95rem;
    line-height: 1.6;
    overflow-wrap: anywhere;
  }

  .noscript {
    position: fixed;
    left: 1rem;
    right: 1rem;
    bottom: 1rem;
    padding: 0.9rem 1rem;
    background: #fff4e5;
    border: 1px solid #f0d3a8;
    border-radius: 0.8rem;
  }

  @media (min-width: 30rem) {
    .quarter-head {
      grid-template-columns: auto auto minmax(0, 1fr) auto;
      grid-template-areas: "id rule meta year";
    }

    .quarter-rule {
      display: block;
      grid-area: rule;
    }
  }

  @media (min-width: 48rem) {
    .months {
      grid-template-columns: repeat(3, minmax(0, 1fr));
    }

    .month {
      border-top: 0;
      border-left: 1px solid var(--line);
      min-height: 13.5rem;
      padding-inline: 0.85rem;
    }

    .month:first-child {
      border-left: 0;
    }

    .facts {
      grid-template-columns: 1fr 1fr;
    }
  }

  @media (min-width: 64rem) {
    .month {
      min-height: 15rem;
      padding-inline: 1rem;
    }

    .model-name {
      font-size: 0.82rem;
    }
  }

  @media (min-width: 80rem) {
    .model-name {
      font-size: 0.86rem;
    }
  }
}

@layer utilities {
  .sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
    border: 0;
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .quarter,
  .model {
    animation: none !important;
    transition: none !important;
  }
}