/* ==========================================================================
   KRYSTIAN OSTROWSKI — SITE STYLESHEET
   "The Manifest" design system. This file is the single source of truth for
   every page. Change a token here, it changes everywhere.
   Sage = primary (light). Espresso = secondary (dark, via [data-theme]).
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=Lora:ital,wght@0,400;0,500;1,400&display=swap');

/* --- SAGE (primary / light) --- */
:root {
  --paper:      #DDE3DC;
  --paper-mid:  #D5DDD4;
  --paper-deep: #CFD8CE;
  --card:       #E4E9E3;
  --ink:        #26302A;
  --steel:      #5E6B60;
  --rule:       #C3CCC2;
  --stamp:      #B45A1E;
  --route:      #C0392B;

  --mono:  'JetBrains Mono', 'SF Mono', Consolas, monospace;
  --serif: 'Lora', Georgia, serif;
  --s1: 8px; --s2: 16px; --s3: 24px; --s4: 32px; --s5: 48px; --s6: 64px;
  --r-tag: 2px; --r-card: 6px;
  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
}

/* --- ESPRESSO (secondary / dark) --- */
[data-theme="dark"] {
  --paper:      #26211C;
  --paper-mid:  #2B251F;
  --paper-deep: #1E1915;
  --card:       #2E281F;
  --ink:        #E9E1D4;
  --steel:      #A69B8B;
  --rule:       #3E362C;
  --stamp:      #E8863B;
  --route:      #E24E3B;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
  background: var(--paper);
  color: var(--ink);
  font-family: var(--serif);
  font-size: 16px;
  line-height: 1.65;
  transition: background 0.3s var(--ease), color 0.3s var(--ease);
}

.wrap { max-width: 760px; margin: 0 auto; padding: var(--s5) var(--s4); }

/* --- masthead --- */
.masthead { display: flex; justify-content: space-between; align-items: flex-start; }
.brand { font-family: var(--mono); font-size: 15px; font-weight: 500; letter-spacing: 0.03em; }
.cursor { color: var(--stamp); }
@media (prefers-reduced-motion: no-preference) {
  @keyframes blink { 0%,49% { opacity: 1; } 50%,100% { opacity: 0; } }
  .cursor { animation: blink 1.1s step-end infinite; }
}
.tagline { font-style: italic; font-size: 14px; color: var(--steel); margin-top: 6px; }
.intro { font-size: 14px; line-height: 1.6; margin-top: var(--s2); max-width: 520px; }

/* --- theme toggle --- */
.toggle {
  font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em;
  color: var(--steel); background: transparent;
  border: 1px solid var(--rule); border-radius: var(--r-tag);
  padding: 4px 10px; cursor: pointer;
  transition: border-color 0.2s var(--ease), color 0.2s var(--ease);
}
.toggle:hover { border-color: var(--stamp); color: var(--stamp); }

/* --- section labels --- */
.label {
  font-family: var(--mono); font-size: 11px; font-weight: 500;
  letter-spacing: 0.06em; color: var(--steel); text-transform: uppercase;
  margin-top: var(--s5);
}
.rule { border: none; border-top: 1px solid var(--rule); margin-top: var(--s1); }

/* --- tags / stamps --- */
.tag {
  display: inline-block; font-family: var(--mono); font-size: 10px;
  color: var(--stamp); border: 1px solid var(--stamp);
  padding: 1px 6px; border-radius: var(--r-tag); letter-spacing: 0.04em;
}
.tag.red { color: var(--route); border-color: var(--route); }

/* --- entry rows --- */
.entry {
  display: block; text-decoration: none; color: inherit;
  padding: 14px 0 14px 14px; border-left: 3px solid var(--route);
  border-bottom: 0.5px solid var(--rule);
  transition: background 0.2s var(--ease);
}
.entry:hover { background: color-mix(in srgb, var(--stamp) 7%, transparent); }
.entry .head { display: flex; gap: 10px; align-items: baseline; flex-wrap: wrap; }
.entry .date { font-family: var(--mono); font-size: 11px; color: var(--steel); }
.entry .title { font-family: var(--mono); font-size: 14px; font-weight: 500; }
.entry .sub { font-size: 14px; color: var(--steel); margin-top: 4px; }

/* --- cards grid --- */
.grid2 { display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 12px; margin-top: 10px; }
.card {
  display: block; text-decoration: none; color: inherit;
  border: 0.5px solid var(--rule); border-radius: var(--r-card);
  padding: 14px; background: var(--card);
  transition: border-color 0.2s var(--ease);
}
.card:hover { border-color: var(--stamp); }
.card .c-title { font-family: var(--mono); font-size: 13px; font-weight: 500; margin-top: 8px; }
.card .c-sub { font-size: 13px; color: var(--steel); margin-top: 3px; }

/* --- demo rows --- */
.demo {
  display: flex; justify-content: space-between; align-items: center;
  padding: 12px 8px; border-bottom: 0.5px solid var(--rule);
  text-decoration: none; color: inherit; border-radius: 4px;
  transition: background 0.2s var(--ease);
}
.demo:hover { background: color-mix(in srgb, var(--stamp) 7%, transparent); }
.demo .left { display: flex; align-items: center; gap: 14px; }
.demo .stat { font-family: var(--mono); font-size: 12px; color: var(--route); min-width: 74px; }
.demo .name { font-family: var(--mono); font-size: 13px; }
.demo .arrow { font-family: var(--mono); font-size: 13px; color: var(--stamp); }

/* --- footer nav --- */
.nav {
  display: flex; gap: 22px; margin-top: var(--s5); padding-top: var(--s2);
  border-top: 1px solid var(--rule);
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.04em;
}
.nav a { text-decoration: none; color: var(--ink); }
.nav a:hover { color: var(--stamp); }
.nav .dot { color: var(--steel); }
.byline { font-family: var(--mono); font-size: 10px; color: var(--steel); margin-top: 10px; }

/* --- animated framework motifs --- */
@media (prefers-reduced-motion: no-preference) {
  @keyframes ladder { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-26px); } }
  @keyframes grow1 { 0%,100% { width: 38%; } 50% { width: 58%; } }
  @keyframes grow2 { 0%,100% { width: 62%; } 50% { width: 44%; } }
  @keyframes grow3 { 0%,100% { width: 50%; } 50% { width: 70%; } }
  @keyframes dash { to { stroke-dashoffset: -24; } }
  @keyframes count { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
  @keyframes rise { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
  .ladder-dot { animation: ladder 3.2s ease-in-out infinite; }
  .bar1 { animation: grow1 4s ease-in-out infinite; }
  .bar2 { animation: grow2 4s ease-in-out infinite 0.4s; }
  .bar3 { animation: grow3 4s ease-in-out infinite 0.8s; }
  .flow { stroke-dasharray: 4 4; animation: dash 1.4s linear infinite; }
  .calcnum { animation: count 2.4s ease-in-out infinite; }
  .row { animation: rise 0.6s ease-out backwards; }
  .r1 { animation-delay: 0.05s; } .r2 { animation-delay: 0.15s; }
  .r3 { animation-delay: 0.25s; } .r4 { animation-delay: 0.35s; }
}
.bars { height: 60px; display: flex; flex-direction: column; justify-content: center; gap: 9px; }
.bars .brow { display: flex; align-items: center; gap: 6px; }
.bars .blabel { font-family: var(--mono); font-size: 9px; color: var(--steel); width: 26px; }
.bars .bar { height: 8px; border-radius: 2px; }

/* --- post / article typography --- */
.post-meta { display: flex; gap: 10px; align-items: center; flex-wrap: wrap; margin: var(--s2) 0 12px; }
.post-title {
  font-family: var(--mono); font-size: 26px; font-weight: 500; letter-spacing: 0.02em;
  line-height: 1.2; border-left: 3px solid var(--route); padding-left: 14px;
}
.post-sub { font-style: italic; color: var(--steel); font-size: 15px; margin-top: 8px; padding-left: 17px; }
.article { margin-top: var(--s4); }
.article p { margin-bottom: var(--s2); }
.article h2 { font-family: var(--mono); font-size: 15px; font-weight: 500; letter-spacing: 0.04em; margin: var(--s4) 0 var(--s2); text-transform: uppercase; color: var(--steel); }
.pull {
  border-left: 3px solid var(--stamp); padding: 12px 0 12px 18px; margin: var(--s3) 0;
  font-style: italic; font-size: 19px; line-height: 1.5;
}
.back { font-family: var(--mono); font-size: 11px; color: var(--steel); text-decoration: none; }
.back:hover { color: var(--stamp); }

/* --- demo tool surface --- */
.tool { background: var(--paper-deep); border: 0.5px solid var(--rule); border-radius: var(--r-card); padding: var(--s4); margin-top: var(--s3); }
.tool .inputs { display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 12px; }
.field { border: 0.5px solid var(--rule); border-radius: var(--r-card); padding: 12px; background: var(--card); }
.field label { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.06em; color: var(--steel); margin-bottom: 6px; text-transform: uppercase; }
.field input {
  width: 100%; font-family: var(--mono); font-size: 18px; font-weight: 500;
  background: transparent; border: none; color: var(--ink); outline: none;
}
.field input:focus { color: var(--stamp); }
.result { margin-top: var(--s3); padding-top: 16px; border-top: 1px solid var(--rule); display: flex; align-items: baseline; gap: 10px; }
.result .rlabel { font-family: var(--mono); font-size: 11px; letter-spacing: 0.04em; color: var(--steel); }
.result .rvalue { font-family: var(--mono); font-size: 26px; font-weight: 500; color: var(--route); }