/* Modo Enfoque — hoja de estilos v2 (rediseño visual, octubre 2026) */

:root {
  --ink: #1b1816;
  --ink-soft: #4a433d;
  --muted: #7a7066;
  --paper: #fffdfa;
  --card-bg: #ffffff;
  --border: #ece4d8;
  --shadow: 0 10px 30px -14px rgba(27, 24, 22, 0.18);
  --shadow-sm: 0 4px 14px -8px rgba(27, 24, 22, 0.16);
  --radius: 20px;
  --radius-sm: 12px;

  --accent: #1f6f5c;
  --accent-dark: #144a3d;
  --accent-soft: #e4f0ec;
  --warm: #e4622d;
  --warm-dark: #b8491c;
  --warm-soft: #fbe8de;
  --plum: #5b4b8a;
  --plum-dark: #3e3264;
  --plum-soft: #eae6f5;

  --max-w: 1080px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "Inter", "Helvetica Neue", Arial, sans-serif;
  background: var(--paper);
  background-image:
    radial-gradient(circle at 8% 0%, rgba(31, 111, 92, 0.06), transparent 40%),
    radial-gradient(circle at 92% 18%, rgba(228, 98, 45, 0.05), transparent 38%);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .logo, .eyebrow, .tag {
  font-family: "Space Grotesk", "Inter", sans-serif;
}

a { color: var(--accent-dark); }
a:hover { color: var(--warm); }

img { max-width: 100%; display: block; }

/* ---------- Header ---------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(255, 253, 250, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 1.1rem 1.4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 3.45rem;
  text-decoration: none;
  color: var(--ink);
  letter-spacing: -0.01em;
  line-height: 1;
}
.logo span { color: var(--accent); }
.logo-mark { width: 62px; height: 62px; flex: none; }

.main-nav { display: flex; gap: 1.6rem; align-items: center; }
.main-nav a {
  text-decoration: none;
  color: var(--ink-soft);
  font-weight: 600;
  font-size: 0.95rem;
  white-space: nowrap;
  transition: color 0.15s ease;
}
.main-nav a:hover { color: var(--accent-dark); }
.main-nav a.active { color: var(--plum-dark); }

/* ---------- Hero ---------- */

.hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3.4rem 1.4rem 2.2rem;
}
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent-dark);
  background: var(--accent-soft);
  padding: 0.35rem 0.8rem;
  border-radius: 999px;
  margin-bottom: 1.1rem;
}
.hero h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.2rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  margin: 0 0 1rem;
  max-width: 18ch;
}
.hero .lead {
  font-size: 1.14rem;
  color: var(--ink-soft);
  max-width: 54ch;
  margin: 0;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 1.8rem;
  margin-top: 2rem;
  padding-top: 1.6rem;
  border-top: 1px solid var(--border);
}
.hero-stat strong {
  display: block;
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.4rem;
  color: var(--ink);
}
.hero-stat span {
  font-size: 0.85rem;
  color: var(--muted);
}

/* ---------- Article list / cards ---------- */

.article-list {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0.6rem 1.4rem 1rem;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(290px, 1fr));
  gap: 1.5rem;
}

.article-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}
.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: #ddd0bd;
}

.card-hero { width: 100%; aspect-ratio: 2 / 1; flex: none; background: var(--accent-soft); overflow: hidden; }
.card-hero svg { width: 100%; height: 100%; display: block; }
.card-hero img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.25s ease; }
.article-card:hover .card-hero img { transform: scale(1.04); }

.card-body { padding: 1.3rem 1.5rem 1.6rem; display: flex; flex-direction: column; gap: 0.6rem; }
.card-body h2 { margin: 0; font-size: 1.22rem; line-height: 1.32; letter-spacing: -0.01em; }
.card-body h2 a { color: var(--ink); text-decoration: none; }
.card-body h2 a:hover { color: var(--accent-dark); }
.card-body p { margin: 0; color: var(--ink-soft); font-size: 0.97rem; }

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.8rem;
  color: var(--muted);
  margin-top: 0.2rem;
}
.card-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); }

.tag {
  display: inline-flex;
  align-self: flex-start;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.32rem 0.7rem;
  border-radius: 999px;
}
.tag.tools { background: var(--accent-soft); color: var(--accent-dark); }
.tag.habits { background: var(--warm-soft); color: var(--warm-dark); }
.tag.focus { background: var(--plum-soft); color: var(--plum-dark); }

/* ---------- Herramientas gratuitas (homepage section) ---------- */

.tools-section {
  max-width: var(--max-w);
  margin: 0 auto 2.2rem;
  padding: 0 1.4rem;
}
.tools-section-panel {
  background: var(--plum-soft);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.8rem 2rem 0.4rem;
  box-shadow: var(--shadow-sm);
}
.tools-section-head { margin-bottom: 0.4rem; }
.tools-section-eyebrow {
  display: inline-flex;
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--plum-dark);
  background: rgba(255,255,255,0.6);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
  margin-bottom: 0.7rem;
}
.tools-section-head h2 {
  margin: 0;
  font-size: 1.3rem;
  color: var(--ink);
  letter-spacing: -0.01em;
  font-family: "Space Grotesk", sans-serif;
}

.tools-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.4rem;
  flex-wrap: wrap;
  padding: 1.4rem 0;
  border-top: 1px solid rgba(62, 50, 100, 0.14);
}
.tools-item-copy h3 { margin: 0 0 0.3rem; font-size: 1.1rem; color: var(--ink); letter-spacing: -0.01em; }
.tools-item-copy p { margin: 0; color: var(--ink-soft); font-size: 0.95rem; max-width: 48ch; }
.tools-item-btn {
  flex: none;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--plum);
  color: #fff;
  font-weight: 700;
  font-size: 0.92rem;
  text-decoration: none;
  padding: 0.75rem 1.3rem;
  border-radius: 999px;
  transition: background 0.15s ease;
}
.tools-item-btn:hover { background: var(--plum-dark); color: #fff; }

.tools-section-foot {
  text-align: right;
  padding: 0.9rem 0 1.3rem;
}
.tools-section-foot a {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--plum-dark);
  text-decoration: none;
}
.tools-section-foot a:hover { color: var(--warm); }

/* ---------- Ad slot ---------- */

.ad-slot {
  max-width: var(--max-w);
  margin: 2.2rem auto;
  padding: 1.6rem;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: #fbf7f1;
}

/* ---------- Article page ---------- */

.post {
  max-width: 720px;
  margin: 0 auto;
  padding: 2.6rem 1.4rem 3rem;
}
.post .tag { margin-bottom: 0.9rem; }
.post h1 {
  font-size: clamp(1.9rem, 4vw, 2.5rem);
  line-height: 1.16;
  letter-spacing: -0.02em;
  margin: 0 0 0.8rem;
}
.post-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.6rem 0.9rem;
  color: var(--muted);
  font-size: 0.92rem;
  margin: 0 0 1.8rem;
}
.post-meta .dot { width: 3px; height: 3px; border-radius: 50%; background: var(--muted); }

.article-hero {
  width: 100%;
  aspect-ratio: 2 / 1;
  border-radius: var(--radius);
  overflow: hidden;
  margin: 0 0 2.1rem;
  box-shadow: var(--shadow);
  background: var(--accent-soft);
}
.article-hero svg { width: 100%; height: 100%; display: block; }
.article-hero img { width: 100%; height: 100%; object-fit: cover; display: block; }

.post-photo {
  margin: 2rem 0;
}
.post-photo img {
  width: 100%;
  display: block;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.post-photo figcaption {
  margin-top: 0.6rem;
  font-size: 0.85rem;
  color: var(--muted);
  text-align: center;
}

.illustration-inline {
  width: 100%;
  aspect-ratio: 2 / 1;
  border-radius: var(--radius);
  overflow: hidden;
  margin: 2rem 0;
  box-shadow: var(--shadow);
  background: var(--accent-soft);
}
.illustration-inline svg { width: 100%; height: 100%; display: block; }

.post p { font-size: 1.06rem; color: var(--ink-soft); margin: 0 0 1.25rem; }
.post p:first-of-type { font-size: 1.16rem; color: var(--ink); }
.post h2 {
  font-size: 1.5rem;
  letter-spacing: -0.01em;
  margin: 2.2rem 0 0.9rem;
  color: var(--ink);
}
.post h3 { font-size: 1.14rem; margin: 1.6rem 0 0.6rem; color: var(--ink); }
.post ul, .post ol { padding-left: 1.3rem; color: var(--ink-soft); font-size: 1.04rem; }
.post li { margin-bottom: 0.55rem; }
.post li strong { color: var(--ink); }
.post a { text-decoration: underline; text-decoration-color: #d8cdbb; text-underline-offset: 3px; }

.toc {
  background: var(--accent-soft);
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.4rem;
  margin: 0 0 2rem;
}
.toc p { margin: 0 0 0.5rem; font-weight: 700; color: var(--accent-dark); font-size: 0.92rem; }
.toc ol { margin: 0; padding-left: 1.2rem; font-size: 0.94rem; }
.toc a { color: var(--accent-dark); text-decoration: none; }
.toc a:hover { color: var(--warm); }

.callout {
  background: var(--plum-soft);
  border-left: 4px solid var(--plum);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 1.1rem 1.4rem;
  margin: 1.8rem 0;
  font-size: 0.98rem;
  color: var(--ink-soft);
}
.callout strong { color: var(--plum-dark); }

.key-points {
  background: #fbf7f1;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.3rem 1.5rem;
  margin: 1.8rem 0;
}
.key-points p.kp-title {
  margin: 0 0 0.7rem;
  font-weight: 700;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  font-size: 0.95rem;
}
.key-points ul { margin: 0; padding-left: 1.2rem; font-size: 0.97rem; }
.key-points li { margin-bottom: 0.4rem; }

.faq { margin: 2.2rem 0; }
.faq-item {
  border-top: 1px solid var(--border);
  padding: 1.1rem 0;
}
.faq-item h3 { margin: 0 0 0.5rem; font-size: 1.04rem; }
.faq-item p { margin: 0; font-size: 1rem; }

.related {
  margin: 2.6rem 0 0;
  padding: 1.5rem 0 0;
  border-top: 1px solid var(--border);
}
.related p.rel-title {
  font-weight: 700;
  font-family: "Space Grotesk", sans-serif;
  color: var(--ink);
  margin: 0 0 0.7rem;
  font-size: 0.92rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--muted);
}
.related ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 0.5rem; }
.related a { font-size: 1rem; font-weight: 600; text-decoration: none; color: var(--accent-dark); }
.related a:hover { color: var(--warm); }

/* Author box at end of article */
.author-box {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin: 2.6rem 0 0;
  padding: 1.4rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
}
.author-box .avatar-sm {
  width: 56px; height: 56px; border-radius: 50%;
  flex: none; object-fit: cover;
  background: var(--accent-dark);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 1.1rem;
}
.author-box .author-name { font-weight: 700; margin: 0 0 0.2rem; color: var(--ink); }
.author-box p { margin: 0; font-size: 0.93rem; color: var(--ink-soft); }
.author-box a { font-size: 0.88rem; }

/* ---------- Sobre mí ---------- */

.about-hero {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3rem 1.4rem 1rem;
  display: flex;
  gap: 2rem;
  align-items: center;
  flex-wrap: wrap;
}
.avatar-photo {
  width: 136px; height: 136px; border-radius: 50%;
  object-fit: cover; display: block;
  border: 4px solid var(--card-bg); box-shadow: var(--shadow);
}
.avatar {
  width: 136px; height: 136px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--plum));
  color: #fff; font-family: "Space Grotesk", sans-serif; font-weight: 700; font-size: 2.2rem;
  box-shadow: var(--shadow);
}
.about-copy { max-width: 56ch; }
.about-copy h1 { margin: 0 0 0.6rem; font-size: 2rem; }
.about-copy p.role { color: var(--accent-dark); font-weight: 700; margin: 0 0 0.8rem; }

.about-body {
  max-width: 720px;
  margin: 0 auto;
  padding: 1rem 1.4rem 3rem;
}
.about-body p { font-size: 1.05rem; color: var(--ink-soft); }
.about-body h2 { font-size: 1.3rem; margin: 2rem 0 0.8rem; }

.social-row { display: flex; gap: 0.8rem; margin-top: 1rem; flex-wrap: wrap; }
.social-row a {
  display: inline-flex; align-items: center; gap: 0.4rem;
  font-size: 0.86rem; font-weight: 600; text-decoration: none;
  color: var(--ink-soft); background: var(--card-bg);
  border: 1px solid var(--border); border-radius: 999px;
  padding: 0.4rem 0.85rem;
  transition: border-color 0.15s ease, color 0.15s ease;
}
.social-row a:hover { border-color: var(--accent); color: var(--accent-dark); }

/* ---------- Contact ---------- */

.contact-wrap {
  max-width: 640px;
  margin: 0 auto;
  padding: 3rem 1.4rem 3.5rem;
}
.contact-wrap h1 { font-size: 2rem; margin: 0 0 0.6rem; }
.contact-wrap p { color: var(--ink-soft); font-size: 1.04rem; }
.contact-card {
  margin-top: 1.6rem;
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1.4rem 1.6rem;
  box-shadow: var(--shadow-sm);
}
.contact-card a { font-weight: 700; }

/* ---------- Footer ---------- */

.site-footer {
  margin-top: 3rem;
  border-top: 1px solid var(--border);
  background: #fbf7f1;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 2.2rem 1.4rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 1.4rem;
  align-items: center;
}
.footer-inner .footer-brand {
  display: flex; align-items: center; gap: 0.5rem;
  font-family: "Space Grotesk", sans-serif; font-weight: 700; color: var(--ink);
}
.footer-inner .footer-brand span { color: var(--accent); }
.footer-links { display: flex; gap: 1.4rem; flex-wrap: wrap; }
.footer-links a { color: var(--ink-soft); text-decoration: none; font-size: 0.9rem; }
.footer-links a:hover { color: var(--accent-dark); }
.footer-note { width: 100%; font-size: 0.8rem; color: var(--muted); }

/* ---------- Herramienta: test interactivo ---------- */

.tool-intro { color: var(--ink-soft); font-size: 1.06rem; margin: 0 0 1.8rem; }

.quiz-wrap {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.8rem 1.8rem 2rem;
  margin: 0 0 2rem;
}

.quiz-progress-track {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: var(--border);
  overflow: hidden;
  margin: 0 0 1.6rem;
}
.quiz-progress-fill {
  height: 100%;
  background: var(--plum);
  border-radius: 999px;
  width: 0%;
  transition: width 0.3s ease;
}
.quiz-progress-label {
  font-size: 0.82rem;
  color: var(--muted);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  margin: 0 0 0.6rem;
}

.quiz-question { display: none; }
.quiz-question.active { display: block; animation: quizFadeIn 0.25s ease; }
@keyframes quizFadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}
.quiz-question h2 {
  font-size: 1.28rem;
  margin: 0 0 1.2rem;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.quiz-options { display: flex; flex-direction: column; gap: 0.7rem; }
.quiz-option {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  padding: 0.9rem 1.1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--paper);
  cursor: pointer;
  font-size: 0.98rem;
  color: var(--ink-soft);
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
  text-align: left;
}
.quiz-option:hover { border-color: var(--plum); background: var(--plum-soft); color: var(--ink); }
.quiz-option.selected { border-color: var(--plum); background: var(--plum-soft); color: var(--ink); font-weight: 600; }
.quiz-option .quiz-dot {
  width: 20px; height: 20px; border-radius: 50%;
  border: 2px solid var(--muted); flex: none; position: relative;
}
.quiz-option.selected .quiz-dot { border-color: var(--plum); }
.quiz-option.selected .quiz-dot::after {
  content: ""; position: absolute; inset: 3px; border-radius: 50%; background: var(--plum);
}

.quiz-nav { display: flex; justify-content: space-between; align-items: center; margin-top: 1.8rem; }

.quiz-btn {
  font-family: "Inter", sans-serif;
  font-weight: 700;
  font-size: 0.96rem;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  border: none;
  cursor: pointer;
  transition: opacity 0.15s ease, transform 0.15s ease;
}
.quiz-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.quiz-btn.primary { background: var(--plum); color: #fff; }
.quiz-btn.primary:hover:not(:disabled) { background: var(--plum-dark); }
.quiz-btn.ghost { background: transparent; color: var(--ink-soft); }
.quiz-btn.ghost:hover:not(:disabled) { color: var(--ink); }

.quiz-result { display: none; }
.quiz-result.active { display: block; animation: quizFadeIn 0.3s ease; }
.quiz-result-score {
  text-align: center;
  padding: 1.6rem 1rem 1.8rem;
  border-radius: var(--radius-sm);
  margin: 0 0 1.6rem;
}
.quiz-result-score.low { background: var(--accent-soft); }
.quiz-result-score.mid { background: var(--warm-soft); }
.quiz-result-score.high { background: var(--plum-soft); }
.quiz-result-score .score-num {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 2.6rem;
  display: block;
  line-height: 1;
  margin-bottom: 0.3rem;
}
.quiz-result-score.low .score-num { color: var(--accent-dark); }
.quiz-result-score.mid .score-num { color: var(--warm-dark); }
.quiz-result-score.high .score-num { color: var(--plum-dark); }
.quiz-result-score .score-label {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--ink);
}
.quiz-result p.result-desc { font-size: 1.03rem; color: var(--ink-soft); margin: 0 0 1.6rem; }

.quiz-result .result-recs { display: flex; flex-direction: column; gap: 0.8rem; margin: 0 0 1.6rem; }
.result-rec-link {
  display: block;
  padding: 1rem 1.2rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  background: var(--paper);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.result-rec-link:hover { border-color: var(--plum); box-shadow: var(--shadow-sm); }
.result-rec-link .rec-eyebrow {
  display: block; font-size: 0.74rem; font-weight: 700; letter-spacing: 0.05em;
  text-transform: uppercase; color: var(--plum); margin-bottom: 0.3rem;
}
.result-rec-link .rec-title { font-weight: 700; color: var(--ink); font-size: 1rem; }

/* ---------- Matriz de Eisenhower ---------- */

.matrix-input-row {
  display: flex;
  gap: 0.7rem;
  margin-bottom: 0.9rem;
}
.matrix-input-row input[type="text"] {
  flex: 1;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  color: var(--ink);
  background: var(--paper);
}
.matrix-input-row input[type="text"]:focus {
  outline: none;
  border-color: var(--plum);
}
.matrix-input-row .quiz-btn { white-space: nowrap; }

.matrix-hint {
  font-size: 0.9rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.matrix-unsorted {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  min-height: 48px;
  padding: 0.9rem;
  margin-bottom: 1.3rem;
  background: var(--paper);
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
}
.matrix-empty {
  font-size: 0.9rem;
  color: var(--muted);
  font-style: italic;
}

.matrix-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.4rem 0.5rem 0.85rem;
  background: var(--card-bg);
  border: 1.5px solid var(--border);
  border-radius: 999px;
  font-size: 0.9rem;
  color: var(--ink);
  cursor: pointer;
  transition: border-color 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  max-width: 100%;
}
.matrix-chip:hover { border-color: var(--plum); box-shadow: var(--shadow-sm); }
.matrix-chip.selected {
  border-color: var(--plum);
  background: var(--plum-soft);
  box-shadow: var(--shadow-sm);
}
.matrix-chip-text {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 220px;
}
.matrix-chip-x {
  border: none;
  background: transparent;
  color: var(--muted);
  font-size: 1.1rem;
  line-height: 1;
  cursor: pointer;
  padding: 0 0.2rem;
  border-radius: 50%;
}
.matrix-chip-x:hover { color: var(--warm-dark); }

.matrix-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
.matrix-quad {
  border-radius: var(--radius-sm);
  padding: 1.1rem 1.1rem 1.2rem;
  min-height: 140px;
  border: 1.5px solid var(--border);
  cursor: pointer;
  transition: box-shadow 0.15s ease, border-color 0.15s ease;
}
.matrix-quad:hover { box-shadow: var(--shadow-sm); }
.matrix-quad h3 {
  margin: 0 0 0.15rem;
  font-size: 1.02rem;
  font-family: "Space Grotesk", "Inter", sans-serif;
}
.matrix-quad-sub {
  display: block;
  font-size: 0.78rem;
  color: var(--muted);
  margin-bottom: 0.7rem;
}
.matrix-quad-tasks {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}
.matrix-quad.do { background: var(--accent-soft); border-color: var(--accent); }
.matrix-quad.do h3 { color: var(--accent-dark); }
.matrix-quad.plan { background: var(--plum-soft); border-color: var(--plum); }
.matrix-quad.plan h3 { color: var(--plum-dark); }
.matrix-quad.delegate { background: var(--warm-soft); border-color: var(--warm); }
.matrix-quad.delegate h3 { color: var(--warm-dark); }
.matrix-quad.delete { background: #f2efe9; border-color: var(--muted); }
.matrix-quad.delete h3 { color: var(--ink-soft); }

/* ---------- Responsive ---------- */

@media (max-width: 1500px) {
  .header-inner { flex-wrap: wrap; row-gap: 0.7rem; }
  .main-nav { width: 100%; flex-wrap: wrap; gap: 0.5rem 1.3rem; }
}

@media (max-width: 640px) {
  .header-inner { padding: 0.9rem 1.1rem; flex-wrap: wrap; row-gap: 0.6rem; }
  .logo { font-size: 1.9rem; gap: 0.5rem; }
  .logo-mark { width: 36px; height: 36px; }
  .main-nav { gap: 1.1rem; }
  .hero { padding: 2.2rem 1.1rem 1.6rem; }
  .article-list { padding: 0.4rem 1.1rem 0.6rem; grid-template-columns: 1fr; }
  .post, .about-body, .contact-wrap { padding-left: 1.1rem; padding-right: 1.1rem; }
  .about-hero { padding: 2.2rem 1.1rem 0.8rem; }
  .author-box { flex-direction: column; }
  .quiz-wrap { padding: 1.3rem 1.2rem 1.6rem; }
  .quiz-question h2 { font-size: 1.12rem; }
  .tools-section-panel { padding: 1.4rem 1.3rem 0.2rem; }
  .tools-item { flex-direction: column; align-items: flex-start; }
  .tools-item-btn { width: 100%; justify-content: center; }
  .tools-section-foot { text-align: left; }
  .matrix-grid { grid-template-columns: 1fr; }
  .matrix-input-row { flex-direction: column; }
  .matrix-chip-text { max-width: 160px; }
}