/* KPTimes app — design system.
 * Hallmark · pre-emit critique: P5 H4 E5 S5 R4 V4
 * Genre: editorial. Macrostructure: directory-led home (search hero + explorer + resource river);
 * document-led subject/paper pages; workbench tool pages. Theme: KPTimes brand (dark + lime).
 * Tokens only: every colour/font below references a var(). No italic headers. No re-drawn chrome.
 */
:root {
  --color-paper: #07070d;
  --color-paper-2: #0d0d18;
  --color-card: #131322;
  --color-card-2: #19192e;
  --color-line: rgba(255, 255, 255, 0.08);
  --color-line-bright: rgba(255, 255, 255, 0.16);
  --color-ink: #f5f5fa;
  --color-muted: #9e9ebb;
  --color-faint: #6a6a88;
  --color-accent: #c8f542;
  --color-accent-text: #c8f542;
  --color-accent-ink: #131a05;
  --color-accent-dim: rgba(200, 245, 66, 0.12);
  --color-violet: #a78bfa;
  --color-violet-dim: rgba(167, 139, 250, 0.12);
  --color-gold: #ffcf3f;
  --color-gold-dim: rgba(255, 207, 63, 0.12);
  --color-cyan: #38bdf8;
  --color-cyan-dim: rgba(56, 189, 248, 0.12);
  --color-orange: #fb923c;
  --color-orange-dim: rgba(251, 146, 60, 0.12);
  --color-red: #ff8f8f;
  --color-green: #34d399;
  --color-green-dim: rgba(52, 211, 153, 0.12);
  --font-display: "Space Grotesk", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, sans-serif;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --nav-h: 64px;
  --wrap: 1120px;
}
[data-theme="light"] {
  --color-paper: #f6f6f2;
  --color-paper-2: #ffffff;
  --color-card: #ffffff;
  --color-card-2: #f0f0ea;
  --color-line: rgba(10, 10, 20, 0.1);
  --color-line-bright: rgba(10, 10, 20, 0.2);
  --color-ink: #14141f;
  --color-muted: #55556e;
  --color-faint: #8a8aa5;
  --color-accent-text: #4a6d00;
  --color-accent-dim: rgba(120, 150, 10, 0.12);
  --color-violet-dim: rgba(120, 90, 220, 0.1);
  --color-gold-dim: rgba(180, 140, 0, 0.12);
  --color-cyan-dim: rgba(10, 120, 180, 0.1);
  --color-orange-dim: rgba(200, 100, 10, 0.1);
  --color-green-dim: rgba(10, 140, 90, 0.1);
}
*, *::before, *::after { box-sizing: border-box; }
html, body { overflow-x: clip; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--color-paper);
  color: var(--color-ink);
  font: 400 1rem/1.6 var(--font-body);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-accent-text); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-style: normal;
  font-weight: 700;
  line-height: 1.15;
  margin: 0 0 0.5em;
  overflow-wrap: anywhere;
  min-width: 0;
}
h1 { font-size: clamp(2rem, 5.4vw, 3.4rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3.4vw, 2.1rem); letter-spacing: -0.01em; }
h3 { font-size: 1.25rem; }
p { margin: 0 0 1em; }
.lede { color: var(--color-muted); font-size: 1.08rem; line-height: 1.65; }
.small { font-size: 0.85rem; color: var(--color-muted); }
.muted { color: var(--color-muted); }
.lime { color: var(--color-accent-text); }
.wrap { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; }
section { padding: 56px 0; }
:focus-visible { outline: 2px solid var(--color-accent); outline-offset: 2px; border-radius: 4px; }

/* ————— Nav ————— */
.site-nav {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--color-paper) 88%, transparent);
  backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-line);
}
.nav-inner { max-width: var(--wrap); margin: 0 auto; padding: 0 20px; height: var(--nav-h); display: flex; align-items: center; gap: 16px; }
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand img { height: 34px; width: auto; }
/* Light theme: kp's wordmark is built for dark backgrounds — keep it on a dark pill. */
[data-theme="light"] .brand img { background: #101018; border-radius: 8px; padding: 4px 6px; height: 42px; }
.brand-name { font: 800 1.25rem var(--font-display); color: var(--color-ink); letter-spacing: -0.02em; }
.brand-name b { color: var(--color-accent-text); }
.nav-links { display: flex; gap: 2px; margin-left: 12px; }
.nav-links a {
  color: var(--color-muted); font-weight: 600; font-size: 0.92rem;
  padding: 8px 11px; border-radius: 999px; white-space: nowrap; text-decoration: none;
}
.nav-links a:hover { color: var(--color-ink); background: var(--color-card-2); text-decoration: none; }
.nav-links a[aria-current="page"] { color: var(--color-accent-text); background: var(--color-accent-dim); }
.nav-right { margin-left: auto; display: flex; align-items: center; gap: 8px; }
.icon-btn {
  min-width: 44px; min-height: 44px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--color-line-bright); border-radius: 999px; background: transparent;
  color: var(--color-ink); font-size: 1.05rem; cursor: pointer; padding: 0 10px;
}
.icon-btn:hover { border-color: var(--color-accent); color: var(--color-accent-text); }
.nav-search-btn { font: 600 0.9rem var(--font-body); color: var(--color-muted); gap: 8px; }
.nav-search-btn kbd {
  font: 600 0.72rem var(--font-body); border: 1px solid var(--color-line-bright);
  border-radius: 5px; padding: 1px 6px; color: var(--color-faint);
}
.menu-btn { display: none; }
@media (max-width: 900px) {
  .nav-links { display: none; }
  .menu-btn { display: inline-flex; }
  .nav-search-btn kbd { display: none; }
}
.mobile-menu {
  display: none; border-bottom: 1px solid var(--color-line);
  background: var(--color-paper-2); padding: 8px 20px 16px;
}
.mobile-menu.open { display: block; }
.mobile-menu a {
  display: block; padding: 12px 4px; font: 600 1rem var(--font-body);
  color: var(--color-ink); border-bottom: 1px solid var(--color-line); text-decoration: none;
}
.mobile-menu a:last-child { border-bottom: none; }

/* ————— Search overlay ————— */
.search-overlay {
  position: fixed; inset: 0; z-index: 200; display: none;
  background: rgba(4, 4, 8, 0.82); backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  padding: 12vh 20px 20px; align-items: flex-start; justify-content: center;
}
.search-overlay.open { display: flex; }
.search-box { width: 100%; max-width: 640px; }
.search-box input {
  width: 100%; padding: 16px 20px; font: 600 1.15rem var(--font-body);
  color: var(--color-ink); background: var(--color-card);
  border: 1px solid var(--color-accent); border-radius: var(--radius-md); outline: none;
}
.search-results { margin-top: 12px; max-height: 55vh; overflow-y: auto; }
.search-hit {
  display: block; padding: 13px 16px; margin-bottom: 8px; border-radius: var(--radius-md);
  background: var(--color-card); border: 1px solid var(--color-line); text-decoration: none;
}
.search-hit:hover { border-color: var(--color-accent); text-decoration: none; }
.search-hit b { color: var(--color-ink); font-weight: 700; display: block; }
.search-hit span { color: var(--color-muted); font-size: 0.85rem; }
.search-hint { color: var(--color-faint); font-size: 0.85rem; text-align: center; margin-top: 14px; }

/* ————— Hero ————— */
.hero { padding: 72px 0 40px; position: relative; }
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background: radial-gradient(560px 300px at 18% -40px, rgba(200, 245, 66, 0.13), transparent 70%),
              radial-gradient(480px 260px at 88% 0px, rgba(167, 139, 250, 0.1), transparent 70%);
}
.hero-inner { position: relative; }
.eyebrow {
  display: inline-block; font: 800 0.75rem var(--font-body); letter-spacing: 0.09em; text-transform: uppercase;
  color: var(--color-accent-text); background: var(--color-accent-dim);
  border: 1px solid rgba(200, 245, 66, 0.3); padding: 5px 12px; border-radius: 999px; margin-bottom: 16px;
}
.hero h1 { max-width: 16ch; }
.hero .lede { max-width: 56ch; }
.hero-search { display: flex; gap: 10px; max-width: 640px; margin: 28px 0 18px; }
.hero-search input {
  flex: 1; min-width: 0; padding: 15px 18px; font: 500 1rem var(--font-body);
  color: var(--color-ink); background: var(--color-card);
  border: 1px solid var(--color-line-bright); border-radius: var(--radius-md); outline: none;
}
.hero-search input:focus { border-color: var(--color-accent); }
.hero-cta { display: flex; gap: 12px; flex-wrap: wrap; }
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 48px; padding: 12px 22px; border-radius: 999px; cursor: pointer;
  font: 700 0.98rem var(--font-body); text-decoration: none; border: 1px solid transparent;
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--color-accent); color: var(--color-accent-ink); }
.btn-primary:hover { box-shadow: 0 8px 28px rgba(200, 245, 66, 0.28); }
.btn-ghost { background: transparent; color: var(--color-ink); border-color: var(--color-line-bright); }
.btn-ghost:hover { border-color: var(--color-accent); color: var(--color-accent-text); }
.btn-sm { min-height: 40px; padding: 8px 16px; font-size: 0.9rem; }
.hero-stats { display: flex; gap: 28px; flex-wrap: wrap; margin-top: 36px; }
.hero-stat b { font: 800 1.5rem var(--font-display); color: var(--color-ink); display: block; }
.hero-stat span { color: var(--color-muted); font-size: 0.85rem; }

/* ————— Page head / breadcrumbs ————— */
.page-head { padding: 44px 0 8px; }
.crumbs { font-size: 0.85rem; color: var(--color-faint); margin-bottom: 14px; }
.crumbs a { color: var(--color-muted); }
.crumbs a:hover { color: var(--color-accent-text); }
.crumbs span.sep { margin: 0 6px; }

/* ————— Section heads ————— */
.sec-head { display: flex; align-items: end; justify-content: space-between; gap: 16px; margin-bottom: 22px; flex-wrap: wrap; }
.sec-head h2 { margin: 0; }
.sec-head p { margin: 4px 0 0; color: var(--color-muted); max-width: 62ch; }
@media (max-width: 640px) { .sec-head { flex-direction: column; align-items: flex-start; } }

/* ————— Cards & grids ————— */
.grid { display: grid; gap: 16px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid-4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
@media (max-width: 900px) { .grid-4 { grid-template-columns: repeat(2, minmax(0, 1fr)); } .grid-3 { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 560px) { .grid-2, .grid-3, .grid-4 { grid-template-columns: minmax(0, 1fr); } }
@media (max-width: 560px) {
  .brand-name { display: none; }
  .nav-search-btn span { display: none; }
  .hero-search { flex-direction: column; }
  .hero-search .btn { width: 100%; }
}
.card {
  background: var(--color-card); border: 1px solid var(--color-line);
  border-radius: var(--radius-lg); padding: 22px;
  display: flex; flex-direction: column; gap: 8px; min-width: 0;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
a.card { color: var(--color-ink); text-decoration: none; }
.card:hover { border-color: var(--color-accent); transform: translateY(-2px); text-decoration: none; }
.card h3 { margin: 0; font-size: 1.18rem; }
.card p { margin: 0; color: var(--color-muted); font-size: 0.94rem; }
.card .meta { font-size: 0.82rem; color: var(--color-faint); }
.card .foot { margin-top: auto; padding-top: 10px; display: flex; gap: 8px; flex-wrap: wrap; align-items: center; }
.chip {
  display: inline-flex; align-items: center; gap: 5px;
  font: 700 0.74rem var(--font-body); letter-spacing: 0.02em;
  padding: 4px 10px; border-radius: 999px; border: 1px solid var(--color-line-bright);
  color: var(--color-muted); background: transparent; white-space: nowrap;
}
.chip-lime { color: var(--color-accent-text); border-color: rgba(200, 245, 66, 0.35); background: var(--color-accent-dim); }
.chip-violet { color: var(--color-violet); border-color: rgba(167, 139, 250, 0.35); background: var(--color-violet-dim); }
.chip-gold { color: var(--color-gold); border-color: rgba(255, 207, 63, 0.35); background: var(--color-gold-dim); }
.chip-cyan { color: var(--color-cyan); border-color: rgba(56, 189, 248, 0.35); background: var(--color-cyan-dim); }
.chip-green { color: var(--color-green); border-color: rgba(52, 211, 153, 0.35); background: var(--color-green-dim); }
.uni-card { border-left: 4px solid var(--color-accent); }
.paper-row {
  display: flex; gap: 16px; align-items: flex-start; padding: 18px 0;
  border-bottom: 1px solid var(--color-line);
}
.paper-row:last-child { border-bottom: none; }
.paper-row .grow { flex: 1; min-width: 0; }
.paper-row h3 { margin: 0 0 4px; font-size: 1.08rem; }
.paper-row h3 a { color: var(--color-ink); }
.paper-row h3 a:hover { color: var(--color-accent-text); }

/* ————— Filters ————— */
.filters {
  display: flex; gap: 10px; flex-wrap: wrap; align-items: center;
  padding: 16px; background: var(--color-card); border: 1px solid var(--color-line);
  border-radius: var(--radius-md); margin-bottom: 20px;
}
.filters label { font: 700 0.8rem var(--font-body); color: var(--color-muted); }
.filters select, .filters input[type="search"], .filters input[type="text"] {
  padding: 10px 12px; font: 500 0.92rem var(--font-body); color: var(--color-ink);
  background: var(--color-paper-2); border: 1px solid var(--color-line-bright);
  border-radius: var(--radius-sm); outline: none; min-height: 44px;
}
.filters select:focus, .filters input:focus { border-color: var(--color-accent); }

/* ————— Tables ————— */
.table-wrap { overflow-x: auto; border: 1px solid var(--color-line); border-radius: var(--radius-md); }
table { width: 100%; border-collapse: collapse; font-size: 0.94rem; }
th, td { padding: 11px 14px; text-align: left; border-bottom: 1px solid var(--color-line); vertical-align: top; }
th { font: 700 0.8rem var(--font-body); text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-muted); background: var(--color-paper-2); }
tr:last-child td { border-bottom: none; }
.bar-track { height: 8px; background: var(--color-card-2); border-radius: 99px; overflow: hidden; min-width: 90px; }
.bar-fill { height: 100%; background: var(--color-accent); border-radius: 99px; }

/* ————— Forms / tools ————— */
.tool-wrap { max-width: 760px; }
.tool-card { background: var(--color-card); border: 1px solid var(--color-line); border-radius: var(--radius-lg); padding: 24px; margin-bottom: 16px; }
.field { margin-bottom: 14px; }
.field label { display: block; font: 700 0.88rem var(--font-body); margin-bottom: 6px; color: var(--color-ink); }
.field .hint { font-size: 0.82rem; color: var(--color-faint); margin-top: 4px; }
.input, select.input {
  width: 100%; padding: 12px 14px; font: 500 1rem var(--font-body); color: var(--color-ink);
  background: var(--color-paper-2); border: 1px solid var(--color-line-bright);
  border-radius: var(--radius-sm); outline: none; min-height: 48px;
}
.input:focus { border-color: var(--color-accent); }
.error-text { color: var(--color-red); font-size: 0.88rem; margin: 6px 0 0; }
.result-box {
  display: none; padding: 20px; border-radius: var(--radius-md); margin-top: 8px;
  background: var(--color-accent-dim); border: 1px solid rgba(200, 245, 66, 0.35);
}
.result-box.show { display: block; }
.result-box .big { font: 800 2rem var(--font-display); color: var(--color-ink); }
.result-box p { margin: 4px 0 0; color: var(--color-muted); }
.row-line { display: flex; gap: 10px; align-items: center; }
.row-line .input { flex: 1; min-width: 0; }
.check-item { display: flex; gap: 10px; align-items: flex-start; padding: 10px 0; border-bottom: 1px solid var(--color-line); }
.check-item input[type="checkbox"] { width: 22px; height: 22px; margin-top: 2px; accent-color: var(--color-accent); flex-shrink: 0; }
.check-item.done span { text-decoration: line-through; color: var(--color-faint); }

/* ————— Empty states / notices ————— */
.empty {
  padding: 36px 24px; text-align: center; border: 1px dashed var(--color-line-bright);
  border-radius: var(--radius-lg); color: var(--color-muted);
}
.empty b { color: var(--color-ink); display: block; font: 700 1.1rem var(--font-display); margin-bottom: 6px; }
.notice {
  padding: 14px 18px; border-radius: var(--radius-md); margin: 0 0 20px;
  background: var(--color-gold-dim); border: 1px solid rgba(255, 207, 63, 0.35);
  color: var(--color-ink); font-size: 0.94rem;
}
.notice b { color: var(--color-gold); }

/* ————— Footer ————— */
.site-footer { border-top: 1px solid var(--color-line); background: var(--color-paper-2); padding: 48px 0 28px; margin-top: 40px; }
.foot-grid { display: grid; grid-template-columns: 1.6fr repeat(3, minmax(0, 1fr)); gap: 28px; }
@media (max-width: 820px) { .foot-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 520px) { .foot-grid { grid-template-columns: minmax(0, 1fr); } }
.foot-grid h4 { font-size: 0.95rem; margin-bottom: 12px; }
.foot-grid ul { list-style: none; margin: 0; padding: 0; }
.foot-grid li { margin-bottom: 8px; }
.foot-grid a { color: var(--color-muted); font-size: 0.92rem; }
.foot-grid a:hover { color: var(--color-accent-text); }
.foot-base { border-top: 1px solid var(--color-line); margin-top: 36px; padding-top: 20px; font-size: 0.85rem; color: var(--color-faint); display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; }

/* ————— Legal / prose ————— */
.prose { max-width: 760px; }
.prose h2 { margin-top: 36px; }
.prose ul { padding-left: 22px; }
.prose li { margin-bottom: 6px; }
.kbd-hint { font-size: 0.85rem; color: var(--color-faint); }
.skip-link { position: absolute; left: -9999px; top: 0; background: var(--color-accent); color: var(--color-accent-ink); padding: 10px 16px; z-index: 300; font-weight: 700; }
.skip-link:focus { left: 8px; top: 8px; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
  html { scroll-behavior: auto; }
}