/* ==================================================================
   ShipAI — shared stylesheet · Atlas design system
   One deep navy carries the site. A single sky accent points.
   Native system UI type. Light/dark via [data-theme] on <html>.

   The original editorial token names are kept (--cream, --ink,
   --accent, --line …) and re-mapped to Atlas values, so every page's
   own styles re-theme automatically. Atlas-native names (--navy,
   --sky, --rule …) are also exposed for new work.
   ================================================================== */


:root {
  /* ---- Atlas-native (dark) ---- */
  --navy:    #0F2236;
  --navy-d:  #081320;
  --slate:   #16304A;
  --sky:     #6BA6DD;
  --sky-d:   #3C75AC;
  --rule:    #28425E;
  --rule-soft: rgba(147,168,190,.16);

  /* ---- Legacy names re-mapped to Atlas (dark) ---- */
  --cream:  #0F2236;   /* page background          */
  --paper:  #16304A;   /* raised surfaces / cards  */
  --ink:    #E9EFF5;   /* primary text             */
  --ink-2:  #B7C6D6;   /* secondary text           */
  --mute:   #93A8BE;   /* metadata / muted         */
  --mute-2: #647A90;   /* faint labels             */
  --line:   #28425E;   /* lines / borders          */
  --line-2: #34516E;   /* softer lines / shimmer   */
  --accent: #6BA6DD;   /* action + accent (sky)    */
  --accent-soft: #12283F; /* tinted CTA band       */
  --tag:    #16304A;
  --success: #5BB489;
  --violet: #8E91E6;

  /* ---- Type: native system UI stack ---- */
  --display: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --body:    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono:    ui-monospace, "SF Mono", "Segoe UI Mono", "Roboto Mono", Menlo, Consolas, monospace;
  --serif:   -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

/* ---- Light mode: same names, light values (the palette signed off on the homepage) ---- */
html[data-theme="light"] {
  --navy:    #F4F6F9;
  --navy-d:  #E8EDF3;
  --slate:   #FFFFFF;
  --sky:     #2D6FB0;
  --sky-d:   #1F5485;
  --rule:    #D2DAE4;
  --rule-soft: rgba(18,36,56,.10);

  --cream:  #F4F6F9;
  --paper:  #FFFFFF;
  --ink:    #122438;
  --ink-2:  #2D4156;
  --mute:   #4F6378;
  --mute-2: #5E7388;
  --line:   #D2DAE4;
  --line-2: #E2E8EF;
  --accent: #2D6FB0;
  --accent-soft: #EAF1F8;
  --tag:    #EEF2F7;
  --success: #2B7A4E;
  --violet: #5B5ED6;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
html { -webkit-font-smoothing: antialiased; }
body {
  background: var(--navy);
  color: var(--ink);
  font-family: var(--body);
  font-size: 16px; line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
.mono   { font-family: var(--mono); }
.serif  { font-family: var(--display); }
button  { font-family: inherit; }
a       { color: inherit; text-decoration: none; }
input, textarea, select { font-family: inherit; }

/* ---------- Layout primitives ---------- */
.max        { max-width: 1220px; margin: 0 auto; padding: 0 60px; }
.max-narrow { max-width: 920px;  margin: 0 auto; padding: 0 60px; }

.caps   { text-transform: uppercase; letter-spacing: 0.08em; font-size: 12px; font-weight: 600; }
.rule   { border-top: 1px solid var(--line); }
.dash   { border-top: 1px dashed var(--line); }

/* dot-grid texture (Atlas) */
.dotted {
  background-image: radial-gradient(var(--rule-soft) 1px, transparent 1px);
  background-size: 30px 30px;
}

/* ---------- Tag pill (mono pill) ---------- */
.tag-pill {
  display: inline-block;
  font-family: var(--mono);
  font-size: 12px; font-weight: 600;
  padding: 5px 11px;
  border: 1px solid var(--line); border-radius: 999px;
  color: var(--ink-2);
  text-transform: uppercase; letter-spacing: 0.05em;
  white-space: nowrap; background: transparent;
}
.tag-pill.is-accent { color: var(--accent); border-color: var(--sky-d); }

/* ---------- Avatars (sky initial on slate) ---------- */
.avatar {
  --size: 40px;
  width: var(--size); height: var(--size); border-radius: 50%;
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 700;
  font-size: calc(var(--size) * 0.44);
  color: var(--sky);
  background: var(--slate);
  border: 1px solid var(--rule);
  flex-shrink: 0; user-select: none;
  letter-spacing: -0.01em;
}

/* ---------- Pills ---------- */
.pill {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: 999px;
  font-size: 12px; font-weight: 600;
  border: 1px solid var(--line); background: var(--slate);
}
.pill.accent { background: var(--sky); color: var(--navy); border-color: var(--sky); }
.pill.ghost  { background: transparent; }
.pill.ink    { background: var(--navy-d); color: var(--ink); border-color: var(--rule); }

/* ---------- Buttons (Atlas) ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 11px 20px; border-radius: 7px;
  font-family: var(--body); font-size: 14.5px; font-weight: 600;
  cursor: pointer; border: 1px solid transparent;
  transition: background 0.15s, color 0.15s, border-color 0.15s, transform 0.12s, filter 0.15s;
  text-decoration: none; color: var(--ink); white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--sky); color: var(--navy); }
.btn-primary:hover { filter: brightness(1.08); }
.btn-accent  { background: var(--sky); color: var(--navy); }
.btn-accent:hover { filter: brightness(1.08); }
.btn-sky     { background: var(--sky); color: #fff; }
.btn-sky:hover { filter: brightness(1.08); }
.btn-rec { gap: 8px; }
.btn-rec .btn-rec-icon { display: inline-block; flex-shrink: 0; }
.btn-ghost   { background: transparent; color: var(--ink); border-color: var(--rule); }
.btn-ghost:hover { border-color: var(--sky); color: var(--sky); }
.btn-sm      { padding: 9px 16px; font-size: 13px; }
.btn-lg      { padding: 14px 26px; font-size: 15px; }

/* ---------- Card / thumb helpers ---------- */
.thumb {
  aspect-ratio: 4/3;
  background: var(--slate);
  border: 1px solid var(--line); border-radius: 10px;
  position: relative; overflow: hidden;
}
.thumb.dark { background: var(--navy-d); border-color: var(--rule); }
.stripes {
  background-image: repeating-linear-gradient(
    135deg, transparent 0 8px, var(--rule-soft) 8px 9px);
}
.stripes-dark {
  background-image: repeating-linear-gradient(
    135deg, transparent 0 8px, rgba(255,255,255,0.04) 8px 9px);
}
.cropmarks { position: relative; }
.cropmarks::before, .cropmarks::after {
  content: ''; position: absolute; width: 10px; height: 10px;
  border-color: var(--sky);
}
.cropmarks::before { top: -1px; left: -1px; border-top: 1px solid; border-left: 1px solid; }
.cropmarks::after  { bottom: -1px; right: -1px; border-bottom: 1px solid; border-right: 1px solid; }

/* ---------- Forms ---------- */
.input {
  width: 100%; padding: 12px 14px;
  border: 1px solid var(--line); border-radius: 8px;
  background: var(--slate); color: var(--ink);
  font-size: 15px; outline: none;
  transition: border 0.15s, background 0.15s;
}
.input:focus { border-color: var(--sky); }
.input::placeholder { color: var(--mute-2); }

/* ---------- Masthead / nav (Atlas) ---------- */
.mast {
  background: var(--navy); border-bottom: 1px solid var(--rule);
  position: relative;
}
.mast .max {
  display: flex; align-items: center; justify-content: space-between;
  padding: 20px 60px; gap: 32px;
}
.brand { display: flex; align-items: center; gap: 14px; }
.brand .wm {
  font-family: var(--display); font-weight: 800; font-size: 27px;
  letter-spacing: -0.03em; line-height: 1; color: var(--ink);
}
.brand .wm .ai { color: var(--sky); }
.brand .by {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--mute-2);
  padding-left: 13px; margin-left: 1px; border-left: 1px solid var(--rule);
  align-self: stretch; display: inline-flex; align-items: center;
}
.brand .by b { color: var(--mute); font-weight: 600; margin-left: 5px; }
.brand .by-tds {
  font-family: var(--display);
  font-size: 11px; font-weight: 600; line-height: 1;
  letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--ink); white-space: nowrap;
  align-self: center;
  margin: 2px 0 0 2px;
}

.mast-nav, .nav { display: flex; gap: 30px; font-size: 14.5px; font-weight: 500; }
.mast-nav a, .nav a { color: var(--mute); padding: 4px 0; position: relative; transition: color 0.15s; }
.mast-nav a:hover, .nav a:hover { color: var(--ink); }
.mast-nav a.active, .nav a.active { color: var(--ink); }

.mast-cta { display: flex; align-items: center; gap: 16px; }
.mast-burger, .burger {
  display: none; background: transparent; border: 1px solid var(--rule);
  width: 42px; height: 42px; border-radius: 8px; color: var(--ink); cursor: pointer;
  align-items: center; justify-content: center;
}
.mast-burger svg, .burger svg { width: 18px; height: 18px; }

#mobile-menu {
  display: none; position: fixed; inset: 0;
  background: var(--navy); z-index: 200;
  padding: 88px 32px 40px;
  flex-direction: column; gap: 22px;
  font-size: 22px; font-weight: 600;
}
#mobile-menu.open { display: flex; }
#mobile-menu a { color: var(--ink); }
#mobile-menu .close {
  position: absolute; top: 20px; right: 20px;
  width: 44px; height: 44px;
  border: 1px solid var(--rule); border-radius: 8px;
  background: transparent; color: var(--ink); cursor: pointer; font-size: 22px;
}
#mobile-menu .submit-btn {
  margin-top: 24px; padding: 14px 24px;
  background: var(--sky); color: #fff;
  border-radius: 7px; text-align: center;
  font-size: 16px; font-weight: 600;
}

/* ---------- Footer action buttons (theme toggle + social) ---------- */
.foot-actions { display: flex; align-items: center; gap: 10px; }

/* ---------- Theme toggle (sun/moon icon button) ---------- */
.theme-toggle {
  background: transparent; border: 1px solid var(--rule);
  width: 42px; height: 42px; border-radius: 8px; color: var(--mute); cursor: pointer;
  display: inline-flex; align-items: center; justify-content: center;
  transition: color 0.15s, border-color 0.15s;
}
.theme-toggle:hover { color: var(--sky); border-color: var(--sky); }
.theme-toggle svg { width: 18px; height: 18px; }
.theme-toggle .i-sun { display: none; }
html[data-theme="light"] .theme-toggle .i-sun { display: block; }
html[data-theme="light"] .theme-toggle .i-moon { display: none; }

/* ---------- Footer (Atlas) ---------- */
.foot {
  margin-top: 0;
  background: var(--navy-d); color: var(--ink);
  padding: 64px 0 34px;
  border-top: 1px solid var(--rule);
}
.foot .max { padding: 0 60px; }
.foot-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr;
  gap: 56px; padding-bottom: 48px;
  border-bottom: 1px solid var(--rule);
}
.foot-brand .brand { margin-bottom: 16px; }
.foot-brand p { color: var(--mute); font-size: 15px; line-height: 1.6; max-width: 320px; margin: 0; }
.foot-col h4 {
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--mute-2); margin: 0 0 16px; font-weight: 600;
}
.foot-col ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 11px; }
.foot-col a { color: var(--mute); font-size: 15px; transition: color 0.15s; }
.foot-col a:hover { color: var(--sky); }
.foot-base {
  padding-top: 26px; display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.06em;
  text-transform: uppercase; color: var(--mute-2); gap: 18px; flex-wrap: wrap;
}
.foot-base a { color: var(--mute); }
.foot-base a:hover { color: var(--sky); }
.foot-legal { display: flex; gap: 12px; align-items: center; flex-wrap: wrap; }
.foot-legal .sep { color: var(--rule); }
@media (max-width: 760px) {
  .foot-grid { grid-template-columns: 1fr; gap: 40px; }
  .foot-base { flex-direction: row; }
}

/* ---------- Project meta helpers ---------- */
.meta-row {
  display: flex; gap: 14px; align-items: center;
  font-size: 13px; color: var(--mute);
  font-family: var(--mono);
}
.meta-row .sep { color: var(--mute-2); }

/* ---------- Sticky submit CTA (disabled) ---------- */
.sticky-submit { display: none !important; }

/* ---------- Mobile breakpoints ---------- */
@media (max-width: 980px) {
  .max, .max-narrow { padding: 0 28px; }
  .mast .max { padding-left: 28px; padding-right: 28px; }
  .mast-nav, .nav { display: none; }
  .mast-cta .btn-ghost { display: none; }
  .mast-burger, .burger { display: inline-flex; }
}
@media (max-width: 600px) {
  /* Compact the masthead so brand + submit CTA + burger fit a 360px
     viewport without clipping the burger off the right edge. */
  .mast .max { padding: 18px; gap: 12px; }
  .brand { gap: 10px; }
  .brand .wm { font-size: 24px; }
  .mast-cta { gap: 10px; }
  .mast-cta .btn { padding: 9px 13px; font-size: 13px; }
  .mast-burger, .burger { flex-shrink: 0; }
}

/* ---------- Print ---------- */
@media print {
  .sticky-submit, .mast-burger, .burger, #mobile-menu { display: none !important; }
  body { background: #fff; color: #000; }
  .foot { background: #fff; color: #000; border-top: 1px solid #000; }
}
