/* EMG launch site: shared styles.
   The tokens follow the platform's tokens.css (emg-portal web/platform), version 2: Montserrat, navy and coral,
   square corners, light and dark themes. Layout: one 1200px column, the diamond as the one motif. */
:root {
  /* Brand (fixed in both themes) */
  --tile-n: #415A7E;
  --tile-s: #9DC0D7;
  --tile-i: #CCEBF7;
  --tile-c: #E47454;
  --charcoal: #2B3340;
  --sheet-paper: #FFFFFF;
  --sheet-grid: #DCE3EC;
  --sheet-head: #F1F4F8;
  --sheet-head-ink: #7C889A;
  --sheet-ink: #2B3340;
  --sheet-err: #B5492A;
  --st-new: #60A5FA;
  --st-progress: #FBBF24;
  --st-hold: #FB923C;
  --st-done: #4ADE80;

  /* Semantic: light */
  --bg: #FFFFFF;
  --bg-alt: #F7FAFC;
  --panel: #FFFFFF;
  --raised: #F4F7FA;
  --text: #2B3340;
  --heading: #415A7E;
  --muted: #566275;
  --faint: #8793A5;
  --line: #E2E8F0;
  --line-strong: #CBD5E0;
  --accent: #E06C4B;
  --accent-ink: #B5492A;
  --accent-soft: #FCEDE8;
  --primary: #415A7E;
  --primary-hover: #2B3340;
  --on-primary: #FFFFFF;
  --link: #415A7E;
  --focus: #1F6FD1;
  --good: #23794A;
  --good-bg: #E4F3EA;
  --tile-d: #2E3541;
  --logo-word: #231F20;
  --ghost: #CBD5E0;
  --band-bg: #2B3340;
  --band-bg-2: #232A35;
  --shadow: 0 1px 2px rgba(43, 51, 64, .05), 0 22px 44px -26px rgba(43, 51, 64, .38);

  --font: "Montserrat", "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, "SFMono-Regular", "Cascadia Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --ease: cubic-bezier(.2, .75, .25, 1);
  --snap: cubic-bezier(.5, -0.3, .3, 1.4);
  color-scheme: light;
}
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #161B22; --bg-alt: #1A2029; --panel: #222A35; --raised: #262E3A;
    --text: #E8EEF5; --heading: #F4F7FB; --muted: #A9B5C6; --faint: #7C889A;
    --line: #2C3542; --line-strong: #3A4655;
    --accent: #E47454; --accent-ink: #F49C80; --accent-soft: rgba(228, 116, 84, .13);
    --primary: #E47454; --primary-hover: #F08A6C; --on-primary: #161B22;
    --link: #A3BBE0; --focus: #7DB4FF; --good: #6FD9A2; --good-bg: rgba(79, 201, 138, .14);
    --tile-d: #FFFFFF; --logo-word: #FFFFFF; --ghost: #3A4655;
    --band-bg: #1F252E; --band-bg-2: #1A2029;
    --shadow: 0 1px 0 rgba(0, 0, 0, .25), 0 24px 54px -26px rgba(0, 0, 0, .75);
    color-scheme: dark;
  }
}
:root[data-theme="dark"] {
  --bg: #161B22; --bg-alt: #1A2029; --panel: #222A35; --raised: #262E3A;
  --text: #E8EEF5; --heading: #F4F7FB; --muted: #A9B5C6; --faint: #7C889A;
  --line: #2C3542; --line-strong: #3A4655;
  --accent: #E47454; --accent-ink: #F49C80; --accent-soft: rgba(228, 116, 84, .13);
  --primary: #E47454; --primary-hover: #F08A6C; --on-primary: #161B22;
  --link: #A3BBE0; --focus: #7DB4FF; --good: #6FD9A2; --good-bg: rgba(79, 201, 138, .14);
  --tile-d: #FFFFFF; --logo-word: #FFFFFF; --ghost: #3A4655;
  --band-bg: #1F252E; --band-bg-2: #1A2029;
  --shadow: 0 1px 0 rgba(0, 0, 0, .25), 0 24px 54px -26px rgba(0, 0, 0, .75);
  color-scheme: dark;
}

/* A band is dark in both themes, like the platform's .emg-band. */
.band {
  --bg: var(--band-bg); --bg-alt: var(--band-bg-2); --panel: #262E3A; --raised: #2C3542;
  --text: #E8EEF5; --heading: #FFFFFF; --muted: #B7C2D0; --faint: #8793A5;
  --line: rgba(255, 255, 255, .12); --line-strong: rgba(255, 255, 255, .22);
  --accent: #E47454; --accent-ink: #F49C80; --accent-soft: rgba(228, 116, 84, .14);
  --primary: #E47454; --primary-hover: #F08A6C; --on-primary: #161B22;
  --link: #A3BBE0; --focus: #7DB4FF;
  --tile-d: #FFFFFF; --logo-word: #FFFFFF; --ghost: rgba(255, 255, 255, .2);
  background: var(--bg);
  color: var(--text);
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 16px/1.6 var(--font);
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3, h4 { color: var(--heading); margin: 0; text-wrap: balance; font-weight: 700; }
p { margin: 0; }
a { color: var(--link); }
:focus-visible { outline: 2px solid var(--focus); outline-offset: 3px; }
code, .mono { font-family: var(--mono); }
[hidden] { display: none !important; }

.wrap {
  width: 100%;
  max-width: 1232px;
  margin-inline: auto;
  padding-left: max(16px, env(safe-area-inset-left, 0px));
  padding-right: max(16px, env(safe-area-inset-right, 0px));
}

/* Type */
.eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: .72rem; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
  color: var(--accent-ink);
}
.eyebrow::after { content: ""; width: 30px; height: 2px; background: var(--accent); }
.hl { color: var(--accent); }
.band .hl { color: var(--accent); }
.h1 { font-size: clamp(2.5rem, 5.4vw, 4.4rem); line-height: 1.02; letter-spacing: -.035em; font-weight: 800; }
.h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); line-height: 1.12; letter-spacing: -.025em; }
.h3 { font-size: 1.15rem; line-height: 1.3; letter-spacing: -.01em; }
.lede { font-size: clamp(1.02rem, 1.4vw, 1.15rem); color: var(--muted); max-width: 62ch; }
.small { font-size: .875rem; }
.label { font-size: .7rem; font-weight: 700; letter-spacing: .12em; text-transform: uppercase; color: var(--faint); }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 10px; min-height: 46px; padding: 0 20px;
  border: 2px solid var(--primary); background: var(--primary); color: var(--on-primary);
  font: 700 .95rem/1 var(--font); text-decoration: none; cursor: pointer; border-radius: 0;
  transition: background .2s, border-color .2s, color .2s;
}
.btn:hover { background: var(--primary-hover); border-color: var(--primary-hover); }
.btn svg { width: 18px; height: 18px; transition: transform .2s var(--ease); }
.btn:hover svg.arrow { transform: translateX(3px); }
.btn--line { background: transparent; color: var(--text); border-color: var(--accent); }
.btn--line:hover { background: var(--accent-soft); border-color: var(--accent); }
.btn--sm { min-height: 38px; padding: 0 14px; font-size: .85rem; }
.linkbtn { background: none; border: 0; padding: 0; color: var(--link); font: inherit; font-weight: 600; cursor: pointer; text-decoration: underline; text-underline-offset: 3px; }

/* The diamond */
.dia { display: inline-block; width: 9px; height: 9px; background: var(--accent); transform: rotate(45deg); flex: none; }

/* Logo and mark */
.logo { display: block; height: 40px; width: auto; }
.logo .ln, .mark .t-n { fill: var(--tile-n); }
.logo .ls, .mark .t-s { fill: var(--tile-s); }
.logo .li, .mark .t-i { fill: var(--tile-i); }
.logo .lc, .mark .t-c { fill: var(--tile-c); }
.logo .ld, .mark .t-d { fill: var(--tile-d); }
.logo .lw { fill: var(--logo-word); }
.mark { display: block; width: 100%; height: auto; overflow: visible; }
.mark .t-ghost { fill: transparent; stroke: var(--ghost); stroke-width: 1.2px; vector-effect: non-scaling-stroke; }
.mark .t-plan { fill: var(--accent-soft); stroke: var(--accent); stroke-width: 1.2px; vector-effect: non-scaling-stroke; }
.mark path { transition: fill .3s, stroke .3s, opacity .3s; }

/* Placeholder marker for anything not yet confirmed */
.tbc {
  display: inline-block; padding: 0 6px; margin-left: 4px; vertical-align: 2px;
  font: 700 .6rem/1.6 var(--font); letter-spacing: .1em; text-transform: uppercase;
  color: var(--accent-ink); border: 1px dashed var(--accent);
}

/* Top bar */
body::before { content: ""; position: fixed; inset: 0 0 auto; height: env(safe-area-inset-top, 0px); z-index: 10; background: var(--bg); }
.top { position: sticky; top: env(safe-area-inset-top, 0px); z-index: 5; background: color-mix(in srgb, var(--bg) 92%, transparent); backdrop-filter: blur(8px); border-bottom: 1px solid var(--line); }
.top .wrap { display: flex; align-items: center; gap: 24px; min-height: 68px; }
.top .logo { height: 34px; }
.top__title { font-weight: 700; color: var(--heading); padding-left: 22px; border-left: 1px solid var(--line-strong); text-decoration: none; }
.top nav { display: flex; gap: 22px; margin-left: auto; }
.top nav a { color: var(--text); text-decoration: none; font-size: .88rem; font-weight: 600; }
.top nav a:hover { color: var(--accent-ink); }
.iconbtn { width: 40px; height: 40px; display: grid; place-items: center; border: 1px solid var(--line-strong); background: transparent; color: var(--text); cursor: pointer; border-radius: 0; flex: none; }
.iconbtn .ic { width: 18px; height: 18px; }
@media (max-width: 1120px) { .top nav { display: none; } .top .theme { margin-left: auto; } }
@media (max-width: 520px) { .top .btn, .top__title { display: none; } .top .logo { height: 30px; } }

/* Sections */
.sec { padding-block: clamp(56px, 8vw, 104px); }
.sec--alt { background: var(--bg-alt); border-block: 1px solid var(--line); }
.sec__head { display: grid; gap: 14px; margin-bottom: clamp(28px, 4vw, 48px); max-width: 780px; }

/* Footer */
.foot { border-top: 1px solid var(--line); }
.foot .wrap { display: flex; flex-wrap: wrap; gap: 18px 40px; align-items: center; justify-content: space-between; padding-block: 34px; color: var(--muted); font-size: .85rem; }
.foot .logo { height: 32px; }
.foot p { max-width: 60ch; }

/* Sheet drawings */
.sheet .sh-paper { fill: var(--sheet-paper); }
.sheet .sh-grid { stroke: var(--sheet-grid); stroke-width: 1px; vector-effect: non-scaling-stroke; }
.sheet .sh-tile { stroke: var(--sheet-paper); stroke-width: 1px; vector-effect: non-scaling-stroke; }
.sheet .sh-sel { fill: none; stroke: var(--tile-c); stroke-width: 2.5px; vector-effect: non-scaling-stroke; }
.sheet .t-d { fill: #2E3541; }

.skip { position: absolute; left: -999px; top: 8px; z-index: 20; background: var(--panel); padding: 8px 12px; }
.skip:focus { left: max(16px, env(safe-area-inset-left, 0px)); }

/* Rise on load: visible at rest, a short lift as it arrives. */
@media (prefers-reduced-motion: no-preference) {
  .rise { animation: rise .7s var(--ease) both; animation-delay: var(--d, 0s); }
  @keyframes rise { from { transform: translateY(14px); opacity: .001; } to { transform: none; opacity: 1; } }
}

@media print {
  .top, .theme { display: none; }
}