/* ==========================================================================
   Demain IA — editorial design system
   Tokens → base → components → views → states → responsive
   ========================================================================== */

/* ---------------------------- design tokens ---------------------------- */
:root {
  /* palette — light */
  --bg: #ffffff;
  --bg-2: #f4f5f7;
  --bg-3: #eceef2;
  --ink: #0b0d12;
  --ink-2: #3c4250;
  --ink-3: #61697a;
  --line: #e4e6eb;
  --line-strong: #cfd4de;
  --accent: #1e4bff;
  --accent-ink: #ffffff;
  --accent-tint: #e8edff;

  --cat-news: #1e4bff;
  --cat-guides: #0e7c5a;
  --cat-tutorials: #b3245b;

  /* type */
  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --font-body: "Public Sans", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --fs-display: clamp(2.35rem, 5.4vw, 3.9rem);
  --fs-h1: clamp(1.8rem, 3.6vw, 2.65rem);
  --fs-h2: clamp(1.32rem, 2.1vw, 1.6rem);
  --fs-h3: 1.15rem;
  --fs-lead: clamp(1.06rem, 1.4vw, 1.3rem);
  --fs-body: 1.0625rem;
  --fs-prose: clamp(1.09rem, 0.6vw + 0.95rem, 1.22rem);
  --fs-small: 0.875rem;
  --fs-kicker: 0.75rem;

  --lh-tight: 1.1;
  --lh-head: 1.18;
  --lh-body: 1.62;
  --lh-prose: 1.72;
  --measure: 68ch;
  --measure-narrow: 640px;

  /* space (8px grid) */
  --sp-1: 4px;
  --sp-2: 8px;
  --sp-3: 12px;
  --sp-4: 16px;
  --sp-5: 24px;
  --sp-6: 32px;
  --sp-7: 40px;
  --sp-8: 48px;
  --sp-9: 64px;
  --sp-10: 80px;
  --sp-11: 96px;

  /* radius + elevation */
  --r-sm: 6px;
  --r-md: 10px;
  --r-lg: 14px;
  --r-pill: 999px;
  --shadow-1: 0 1px 2px rgba(11, 13, 18, 0.06), 0 8px 24px -12px rgba(11, 13, 18, 0.18);

  /* motion */
  --dur-1: 160ms;
  --dur-2: 220ms;
  --dur-3: 300ms;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);

  --container: 1200px;
  --header-h: 68px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0b0d12;
    --bg-2: #14171e;
    --bg-3: #1b2029;
    --ink: #f5f6f8;
    --ink-2: #c3c8d2;
    --ink-3: #98a0b0;
    --line: #232833;
    --line-strong: #343c4a;
    --accent: #6e8bff;
    --accent-ink: #0b0d12;
    --accent-tint: #1a2033;
    --cat-news: #7c95ff;
    --cat-guides: #34b48c;
    --cat-tutorials: #e0709a;
    --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.4), 0 10px 30px -14px rgba(0, 0, 0, 0.7);
  }
}

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

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.no-scroll { overflow: hidden; }

img { max-width: 100%; }

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 600;
  line-height: var(--lh-head);
  letter-spacing: -0.01em;
}

p { margin: 0; }

a { color: inherit; text-decoration: none; }

a.link { color: var(--accent); text-underline-offset: 3px; }
a.link:hover { text-decoration: underline; }

::selection { background: var(--accent-tint); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -60px;
  z-index: 100;
  padding: 10px 16px;
  background: var(--ink);
  color: var(--bg);
  border-radius: var(--r-sm);
  transition: top var(--dur-1) var(--ease-out);
}
.skip-link:focus { top: 12px; }

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0);
  white-space: nowrap; border: 0;
}

/* --------------------------- layout helpers ---------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(20px, 5vw, 44px);
}

.section { padding-block: clamp(40px, 6vw, 72px); }
.section--tight { padding-block: clamp(28px, 4vw, 48px); }
.divider { border-top: 1px solid var(--line); }

.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--sp-4);
  margin-bottom: var(--sp-6);
  padding-bottom: var(--sp-3);
  border-bottom: 2px solid var(--ink);
}
.section-head h2 { font-size: var(--fs-h2); }
.section-head .more {
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}
.section-head .more:hover { text-decoration: underline; }

/* ------------------------------ kicker --------------------------------- */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  font-family: var(--font-body);
  font-size: var(--fs-kicker);
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--cat, var(--accent));
}
.kicker::before {
  content: "";
  width: 18px;
  height: 2px;
  background: currentColor;
  display: inline-block;
}
.cat-news { --cat: var(--cat-news); }
.cat-guides { --cat: var(--cat-guides); }
.cat-tutorials { --cat: var(--cat-tutorials); }

.meta {
  font-size: var(--fs-small);
  color: var(--ink-3);
}
.meta--row { display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-2); }
.meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--line-strong); }

/* ------------------------------ buttons -------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  min-height: 44px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: 0.01em;
  cursor: pointer;
  transition: background var(--dur-1) var(--ease-out), color var(--dur-1) var(--ease-out),
    border-color var(--dur-1) var(--ease-out), transform var(--dur-1) var(--ease-out);
}
.btn--primary { background: var(--accent); color: var(--accent-ink); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn:active { transform: translateY(1px); }
.btn[disabled] { opacity: 0.55; cursor: not-allowed; }

@media (hover: hover) {
  .btn--primary:hover { background: color-mix(in srgb, var(--accent) 88%, #000); }
  .btn--ghost:hover { border-color: var(--ink); }
}

/* ------------------------------- header -------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header.is-stuck { box-shadow: var(--shadow-1); }

.header-inner {
  display: flex;
  align-items: center;
  gap: var(--sp-5);
  height: var(--header-h);
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.32rem;
  letter-spacing: -0.02em;
  color: var(--ink);
}
.brand .brand-mark {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  transform: translateY(-1px);
}

.nav {
  display: flex;
  align-items: center;
  gap: var(--sp-1);
  margin-inline-start: var(--sp-4);
}
.nav a {
  display: inline-flex;
  align-items: center;
  height: 36px;
  padding: 0 12px;
  border-radius: var(--r-sm);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--ink-2);
  transition: color var(--dur-1) var(--ease-out), background var(--dur-1) var(--ease-out);
}
.nav a[aria-current="page"] { color: var(--ink); background: var(--bg-2); }
@media (hover: hover) { .nav a:hover { color: var(--ink); background: var(--bg-2); } }

.header-tools { display: flex; align-items: center; gap: var(--sp-2); margin-inline-start: auto; }

.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--ink-2);
  cursor: pointer;
  transition: border-color var(--dur-1) var(--ease-out), color var(--dur-1) var(--ease-out);
}
@media (hover: hover) { .icon-btn:hover { border-color: var(--ink); color: var(--ink); } }

.nav-toggle { display: none; }

/* mobile drawer */
.drawer {
  display: none;
  border-bottom: 1px solid var(--line);
  background: var(--bg);
}
.drawer[data-open="true"] { display: block; }
.drawer nav { display: grid; margin: 0; }
.drawer nav a {
  padding: 15px 0;
  border-bottom: 1px solid var(--line);
  font-family: var(--font-display);
  font-size: 1.3rem;
  color: var(--ink);
  height: auto;
  border-radius: 0;
  background: none;
}
.drawer nav a:last-child { border-bottom: 0; }

/* ------------------------------- hero ---------------------------------- */
.hero { padding-block: clamp(32px, 5vw, 64px); }
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
}
.hero-copy { display: flex; flex-direction: column; gap: var(--sp-4); max-width: 620px; }
.hero-title {
  font-size: var(--fs-display);
  line-height: var(--lh-tight);
  letter-spacing: -0.02em;
}
.hero-title a { display: inline; }
.hero-deck { font-size: var(--fs-lead); color: var(--ink-2); line-height: 1.5; max-width: 56ch; }
.hero-cta { margin-top: var(--sp-2); display: flex; gap: var(--sp-3); flex-wrap: wrap; }

.cover {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-3);
  border-radius: var(--r-md);
  border: 1px solid var(--line);
}
.cover img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.94) contrast(1.02);
}
.hero .cover { border-radius: var(--r-lg); }

/* ---------------------------- category rail ---------------------------- */
.cat-rail {
  border-block: 1px solid var(--line);
  padding-block: var(--sp-3);
  margin-bottom: var(--sp-8);
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  height: 38px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  font-size: var(--fs-small);
  font-weight: 600;
  color: var(--ink-2);
  white-space: nowrap;
  transition: border-color var(--dur-1) var(--ease-out), color var(--dur-1) var(--ease-out),
    background var(--dur-1) var(--ease-out);
}
.chip .swatch { width: 8px; height: 8px; border-radius: 50%; background: var(--cat, var(--accent)); }
.chip[aria-pressed="true"] { background: var(--ink); color: var(--bg); border-color: var(--ink); }
@media (hover: hover) { .chip:hover { border-color: var(--ink); color: var(--ink); } }

/* ------------------------------ stories -------------------------------- */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(20px, 3vw, 36px);
}

.card { display: flex; flex-direction: column; gap: var(--sp-3); }
.card .card-title {
  font-size: 1.28rem;
  line-height: 1.24;
  letter-spacing: -0.01em;
}
.card .card-deck { color: var(--ink-2); font-size: 0.95rem; line-height: 1.55; }
.card .cover { border-radius: var(--r-md); }
.card a.card-body { display: flex; flex-direction: column; gap: var(--sp-2); }
.card a.card-title-link { color: var(--ink); }
@media (hover: hover) {
  .card:hover .card-title { color: var(--accent); }
  .card:hover .cover img { transform: scale(1.02); }
}
.card .cover img { transition: transform var(--dur-3) var(--ease-out); }

/* list rows */
.rows { display: grid; }
.row-item {
  display: grid;
  grid-template-columns: 168px 1fr;
  gap: clamp(16px, 2.4vw, 28px);
  padding-block: var(--sp-5);
  border-top: 1px solid var(--line);
  align-items: start;
}
.row-item:last-child { border-bottom: 1px solid var(--line); }
.row-item .cover { border-radius: var(--r-sm); }
.row-item .row-title { font-size: 1.2rem; line-height: 1.24; }
.row-item .row-deck { color: var(--ink-2); font-size: 0.94rem; margin-top: 6px; }
.row-item .meta { margin-top: 10px; }
@media (hover: hover) { .row-item:hover .row-title { color: var(--accent); } }

/* --------------------------- newsletter band --------------------------- */
.band {
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(28px, 4vw, 48px);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: clamp(20px, 3vw, 48px);
  align-items: center;
}
.band h2 { font-size: var(--fs-h2); }
.band p { color: var(--ink-2); margin-top: 8px; max-width: 46ch; }
.band form { min-width: 340px; }

/* ------------------------------- form ---------------------------------- */
.field { display: grid; gap: 6px; }
.field label { font-size: var(--fs-small); font-weight: 600; color: var(--ink-2); }
.field input {
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-sm);
  background: var(--bg);
  color: var(--ink);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color var(--dur-1) var(--ease-out), box-shadow var(--dur-1) var(--ease-out);
}
.field input::placeholder { color: var(--ink-3); }
.field input:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-tint); }
.field[data-invalid="true"] input { border-color: var(--cat-tutorials); box-shadow: 0 0 0 3px color-mix(in srgb, var(--cat-tutorials) 18%, transparent); }
.field .error {
  font-size: 0.8125rem;
  color: var(--cat-tutorials);
  display: none;
}
.field[data-invalid="true"] .error { display: block; }
.inline-form { display: flex; gap: var(--sp-2); align-items: flex-start; }
.inline-form .field { flex: 1; }
.form-note { font-size: var(--fs-small); color: var(--ink-3); margin-top: var(--sp-3); }

.form-status {
  display: none;
  align-items: center;
  gap: var(--sp-3);
  padding: 14px 16px;
  border: 1px solid var(--cat-guides);
  border-radius: var(--r-sm);
  background: color-mix(in srgb, var(--cat-guides) 8%, var(--bg));
  color: var(--ink);
  font-size: 0.95rem;
}
.form-status[data-state="success"] { display: flex; }
.form-status .tick { color: var(--cat-guides); flex: none; }

.spinner {
  width: 16px; height: 16px;
  border: 2px solid color-mix(in srgb, var(--accent-ink) 40%, transparent);
  border-top-color: var(--accent-ink);
  border-radius: 50%;
  animation: spin 720ms linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.btn[data-loading="true"] { pointer-events: none; opacity: 0.8; }

/* ------------------------------ article -------------------------------- */
.article-head { padding-block: clamp(28px, 4vw, 52px); }
.breadcrumb { font-size: var(--fs-small); color: var(--ink-3); margin-bottom: var(--sp-5); }
.breadcrumb a:hover { color: var(--ink); }
.breadcrumb .sep { margin-inline: 8px; color: var(--line-strong); }

.article-head .inner { max-width: 820px; }
.article-title {
  font-size: var(--fs-h1);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin-top: var(--sp-4);
}
.article-deck {
  font-size: var(--fs-lead);
  color: var(--ink-2);
  line-height: 1.5;
  margin-top: var(--sp-4);
  max-width: 60ch;
}
.byline {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--sp-3);
  margin-top: var(--sp-6);
  padding-top: var(--sp-4);
  border-top: 1px solid var(--line);
}
.byline .who { font-weight: 600; color: var(--ink); }
.byline .role { color: var(--ink-3); font-size: var(--fs-small); }

.article-cover { margin-block: clamp(24px, 3vw, 40px); max-width: 1000px; }
.article-cover .cover { border-radius: var(--r-lg); }
.article-cover figcaption {
  margin-top: 10px;
  font-size: 0.8125rem;
  color: var(--ink-3);
}

.prose {
  max-width: var(--measure);
  font-family: var(--font-display);
  font-size: var(--fs-prose);
  line-height: var(--lh-prose);
  color: var(--ink);
}
.prose > * + * { margin-top: 1.15em; }
.prose h2 {
  font-size: clamp(1.4rem, 2.4vw, 1.85rem);
  margin-top: 1.7em;
  letter-spacing: -0.015em;
}
.prose ul { padding-left: 1.15em; }
.prose li + li { margin-top: 0.5em; }
.prose strong { font-weight: 600; }
.prose blockquote {
  margin: 1.6em 0;
  padding: 4px 0 4px 24px;
  border-left: 3px solid var(--accent);
  font-style: italic;
  font-size: 1.16em;
  color: var(--ink);
}
.prose pre {
  margin: 1.6em 0;
  padding: 20px;
  background: var(--bg-2);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  overflow-x: auto;
}
.prose code {
  font-family: var(--font-mono);
  font-size: 0.86em;
}
.prose p code, .prose li code {
  background: var(--bg-2);
  padding: 2px 6px;
  border-radius: 4px;
  border: 1px solid var(--line);
}

.tags { display: flex; flex-wrap: wrap; gap: var(--sp-2); margin-top: var(--sp-8); }

.article-foot {
  max-width: var(--measure);
  margin-top: var(--sp-8);
  padding-top: var(--sp-6);
  border-top: 1px solid var(--line);
}

/* ------------------------------- pages --------------------------------- */
.page-head { padding-block: clamp(36px, 6vw, 72px) clamp(20px, 3vw, 36px); }
.page-head h1 { font-size: var(--fs-h1); letter-spacing: -0.02em; }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(28px, 5vw, 72px);
  align-items: start;
}
.lede { font-size: var(--fs-lead); line-height: 1.5; color: var(--ink); font-family: var(--font-display); }
.prose-plain { max-width: var(--measure); color: var(--ink-2); }
.prose-plain > * + * { margin-top: 1em; }
.prose-plain h3 { color: var(--ink); font-size: 1.1rem; margin-top: 1.4em; }

.stat-block { display: grid; gap: var(--sp-6); }
.stat {
  border-top: 1px solid var(--line);
  padding-top: var(--sp-4);
}
.stat .num { font-family: var(--font-display); font-size: 1.5rem; }
.stat .lbl { font-size: var(--fs-small); color: var(--ink-3); }

/* empty state */
.empty {
  text-align: center;
  padding: clamp(48px, 8vw, 96px) 20px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-lg);
  display: grid;
  gap: var(--sp-3);
  justify-items: center;
}
.empty h2 { font-size: 1.3rem; }
.empty p { color: var(--ink-3); max-width: 44ch; }

/* ------------------------------- search -------------------------------- */
.search-field {
  display: flex;
  align-items: center;
  gap: var(--sp-2);
  height: 46px;
  padding: 0 14px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-pill);
  background: var(--bg);
  min-width: 220px;
}
.search-field input {
  border: 0;
  background: transparent;
  color: var(--ink);
  font: inherit;
  font-size: 0.9375rem;
  width: 100%;
  outline: none;
}
.search-field svg { color: var(--ink-3); flex: none; }

/* ------------------------------- footer -------------------------------- */
.site-footer {
  margin-top: clamp(48px, 7vw, 96px);
  border-top: 1px solid var(--line);
  background: var(--bg-2);
  padding-block: clamp(40px, 6vw, 64px) var(--sp-7);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: var(--sp-7);
}
.footer-brand .brand { font-size: 1.5rem; }
.footer-brand p { color: var(--ink-2); margin-top: var(--sp-3); max-width: 34ch; font-size: 0.94rem; }
.footer-col h3 {
  font-family: var(--font-body);
  font-size: var(--fs-kicker);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.09em;
  color: var(--ink-3);
  margin-bottom: var(--sp-3);
}
.footer-col a { display: block; padding: 5px 0; color: var(--ink-2); font-size: 0.94rem; }
@media (hover: hover) { .footer-col a:hover { color: var(--accent); } }

.credits {
  margin-top: var(--sp-8);
  border-top: 1px solid var(--line);
  padding-top: var(--sp-4);
}
.credits summary {
  cursor: pointer;
  font-size: var(--fs-small);
  color: var(--ink-3);
  font-weight: 600;
}
.credits ul { list-style: none; padding: 0; margin: var(--sp-4) 0 0; display: grid; gap: 6px; }
.credits li { font-size: 0.8125rem; color: var(--ink-3); }
.credits a { color: var(--accent); }

.footer-bottom {
  margin-top: var(--sp-7);
  padding-top: var(--sp-5);
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: space-between;
  align-items: center;
  color: var(--ink-3);
  font-size: var(--fs-small);
}

/* ------------------------------ motion --------------------------------- */
.view-enter { animation: viewIn var(--dur-3) var(--ease-out) both; }
@keyframes viewIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: none; }
}
.stagger > * { animation: viewIn var(--dur-3) var(--ease-out) both; }
.stagger > *:nth-child(1) { animation-delay: 0ms; }
.stagger > *:nth-child(2) { animation-delay: 40ms; }
.stagger > *:nth-child(3) { animation-delay: 80ms; }
.stagger > *:nth-child(4) { animation-delay: 120ms; }
.stagger > *:nth-child(5) { animation-delay: 160ms; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

/* ------------------------------ responsive ----------------------------- */
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero .cover { order: -1; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: var(--sp-6); }
  .about-grid { grid-template-columns: 1fr; }
}

@media (max-width: 900px) {
  .nav { display: none; }
  .nav-toggle { display: inline-flex; }
  .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .band { grid-template-columns: 1fr; }
  .band form { min-width: 0; }
  .header-search { display: none; }
}

@media (max-width: 640px) {
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .row-item { grid-template-columns: 116px 1fr; }
  .row-item .row-deck { display: none; }
  .inline-form { flex-direction: column; }
  .inline-form .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; }
  .header-tools .btn { padding: 0 14px; }
}

@media (max-width: 560px) {
  .brand-mark { display: none; }
}

@media (max-width: 400px) {
  .row-item { grid-template-columns: 1fr; }
  .row-item .cover { aspect-ratio: 16 / 9; }
}