/* IN-KluSo Tools — Base Styles */
@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=Inter:wght@300;400;500;600&display=swap');

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

:root {
  --cream: #FAF6EE;
  --orange: #E85D26;
  --black: #1A1A1A;
  --gray: #6B6B6B;
  --light-gray: #E8E2D9;
  --warm-white: #FFFDF9;
  --blue: #2D6BE4;
  --green: #2A7A4F;
  --magenta: #C2185B;
  --lilac: #7B61C4;
}

html { font-size: 16px; }
body {
  background: var(--cream);
  color: var(--black);
  font-family: 'Inter', system-ui, sans-serif;
  font-weight: 400;
  line-height: 1.65;
  min-height: 100vh;
}

/* NAV */
nav {
  background: var(--black);
  padding: 0 2rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  height: 52px;
  position: sticky;
  top: 0;
  z-index: 100;
}
nav .nav-brand {
  font-family: 'DM Serif Display', serif;
  font-size: 1.05rem;
  color: var(--cream);
  text-decoration: none;
  letter-spacing: 0.02em;
  margin-right: auto;
}
nav .nav-brand span { color: var(--orange); }
nav a {
  color: var(--light-gray);
  text-decoration: none;
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.15s;
}
nav a:hover, nav a.active { color: var(--orange); }

/* STRIPE */
.stripe {
  height: 4px;
  background: linear-gradient(90deg, var(--orange) 0%, var(--orange) 60%, transparent 100%);
}

/* LAYOUT */
.container { max-width: 860px; margin: 0 auto; padding: 0 2rem; }
.container--wide { max-width: 1100px; margin: 0 auto; padding: 0 2rem; }

/* HERO */
.hero { padding: 5rem 0 3.5rem; border-bottom: 1px solid var(--light-gray); }
.hero-kicker {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1rem;
}
.hero h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.1;
  letter-spacing: -0.01em;
  max-width: 700px;
  margin-bottom: 1.25rem;
}
.hero h1 em { font-style: italic; color: var(--orange); }
.hero p {
  font-size: 1.1rem;
  color: var(--gray);
  max-width: 580px;
  line-height: 1.7;
}

/* SECTION HEADERS */
.section-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1.5rem;
}
.section-tag {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--orange);
  color: #fff;
  padding: 0.2rem 0.6rem;
  border-radius: 2px;
}
.section-tag.blue { background: var(--blue); }
.section-tag.green { background: var(--green); }
.section-tag.magenta { background: var(--magenta); }
.section-tag.lilac { background: var(--lilac); }
.section-header hr { flex: 1; border: none; border-top: 1px solid var(--light-gray); }

/* CARDS */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}
.card {
  background: var(--warm-white);
  border: 1px solid var(--light-gray);
  border-radius: 4px;
  padding: 1.75rem;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.card:hover { border-color: var(--orange); box-shadow: 0 2px 12px rgba(232,93,38,0.08); }
.card-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.6rem;
}
.card h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.25rem;
  line-height: 1.25;
  margin-bottom: 0.75rem;
}
.card p { font-size: 0.9rem; color: var(--gray); }
.card a.card-link {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--black);
  text-decoration: none;
  border-bottom: 2px solid var(--orange);
  padding-bottom: 1px;
  transition: color 0.15s;
}
.card a.card-link:hover { color: var(--orange); }

/* FORMS */
.tool-form { margin: 2.5rem 0; }
.form-group { margin-bottom: 1.5rem; }
.form-group label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--black);
  margin-bottom: 0.45rem;
}
.form-group .field-hint {
  font-size: 0.8rem;
  color: var(--gray);
  margin-bottom: 0.45rem;
  font-style: italic;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--light-gray);
  border-radius: 3px;
  background: var(--warm-white);
  font-family: 'Inter', sans-serif;
  font-size: 0.95rem;
  color: var(--black);
  transition: border-color 0.15s;
  appearance: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--orange);
}
.form-group textarea { min-height: 110px; resize: vertical; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 600px) { .form-row { grid-template-columns: 1fr; } }

/* BUTTONS */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  font-family: 'Inter', sans-serif;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  border: none;
  border-radius: 3px;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  text-decoration: none;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--orange); color: #fff; }
.btn-primary:hover { background: #c94e1e; }
.btn-secondary { background: var(--black); color: #fff; }
.btn-secondary:hover { background: #333; }
.btn-outline { background: transparent; color: var(--black); border: 1.5px solid var(--black); }
.btn-outline:hover { background: var(--black); color: #fff; }
.btn-row { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 1.75rem; }

/* OUTPUT PREVIEW */
.output-box {
  background: var(--black);
  border-radius: 4px;
  padding: 1.5rem;
  margin-top: 2rem;
  display: none;
}
.output-box.visible { display: block; }
.output-box pre {
  color: #A8E6A3;
  font-family: 'Courier New', monospace;
  font-size: 0.8rem;
  white-space: pre-wrap;
  word-break: break-word;
  max-height: 400px;
  overflow-y: auto;
}
.output-label {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.75rem;
}

/* HOW IT WORKS */
.how-it-works {
  background: var(--warm-white);
  border: 1px solid var(--light-gray);
  border-left: 4px solid var(--orange);
  border-radius: 0 4px 4px 0;
  padding: 2rem;
  margin: 3rem 0;
}
.how-it-works h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem;
  margin-bottom: 1rem;
}
.how-it-works ol {
  padding-left: 1.25rem;
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.8;
}
.how-it-works ol li { margin-bottom: 0.4rem; }
.how-it-works ol strong { color: var(--black); }
.sample-link {
  display: inline-block;
  margin-top: 1.25rem;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--orange);
  text-decoration: none;
  border-bottom: 1px solid var(--orange);
}

/* WORKFLOW STRIP */
.workflow-strip {
  display: flex;
  align-items: flex-start;
  gap: 0;
  margin: 3rem 0;
  overflow-x: auto;
}
.workflow-step {
  flex: 1;
  min-width: 160px;
  padding: 1.5rem 1.25rem;
  background: var(--warm-white);
  border: 1px solid var(--light-gray);
  position: relative;
}
.workflow-step:not(:last-child)::after {
  content: "→";
  position: absolute;
  right: -12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--orange);
  font-size: 1.1rem;
  z-index: 1;
}
.workflow-step .step-num {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.4rem;
}
.workflow-step p { font-size: 0.85rem; color: var(--gray); line-height: 1.5; }
.workflow-step strong { color: var(--black); font-size: 0.92rem; display: block; margin-bottom: 0.3rem; }

/* DIVIDER */
.divider { border: none; border-top: 1px solid var(--light-gray); margin: 3rem 0; }

/* FOOTER */
footer {
  margin-top: 5rem;
  border-top: 1px solid var(--light-gray);
  padding: 2rem;
  text-align: center;
  font-size: 0.78rem;
  color: var(--gray);
}
footer strong { color: var(--black); }

/* ARTICLE STYLES (for output pages) */
.article-wrap { max-width: 720px; margin: 0 auto; padding: 3rem 2rem 5rem; }
.article-meta { font-size: 0.78rem; color: var(--gray); margin-bottom: 2rem; letter-spacing: 0.04em; }
.article-h1 {
  font-family: 'DM Serif Display', serif;
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1.12;
  margin-bottom: 0.5rem;
}
.article-deck {
  font-size: 1.1rem;
  color: var(--gray);
  font-style: italic;
  margin-bottom: 2rem;
  line-height: 1.6;
}
.article-section-tag {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--orange);
  margin: 2.5rem 0 0.6rem;
}
.article-section-tag.blue { color: var(--blue); }
.article-section-tag.green { color: var(--green); }
.article-section-tag.lilac { color: var(--lilac); }
.article-section-tag.magenta { color: var(--magenta); }
.article-h2 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.55rem;
  margin-bottom: 0.9rem;
  line-height: 1.2;
}
.article-body p { font-size: 1rem; line-height: 1.75; margin-bottom: 1.1rem; color: var(--black); }
.article-body p em { font-style: italic; }
.evidence-box, .inference-box {
  background: var(--warm-white);
  border: 1px solid var(--light-gray);
  border-left: 4px solid var(--orange);
  border-radius: 0 4px 4px 0;
  padding: 1.5rem 1.75rem;
  margin: 2.5rem 0;
}
.inference-box { border-left-color: var(--blue); }
.evidence-box h4, .inference-box h4 {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 1rem;
}
.inference-box h4 { color: var(--blue); }
.evidence-box ul, .inference-box ul {
  font-size: 0.88rem;
  color: var(--gray);
  padding-left: 1.1rem;
  line-height: 1.8;
}
.evidence-box ul li, .inference-box ul li { margin-bottom: 0.3rem; }
.source-chip {
  display: inline-block;
  font-size: 0.68rem;
  font-weight: 600;
  background: var(--light-gray);
  color: var(--black);
  padding: 0.1rem 0.45rem;
  border-radius: 2px;
  margin-left: 0.3rem;
}

/* OPS plan styles */
.plan-block {
  background: var(--warm-white);
  border: 1px solid var(--light-gray);
  border-radius: 4px;
  padding: 1.75rem;
  margin: 1.5rem 0;
}
.plan-block h3 {
  font-family: 'DM Serif Display', serif;
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}
.plan-block.track-a { border-top: 4px solid var(--green); }
.plan-block.track-b { border-top: 4px solid var(--orange); }
.plan-block.track-c { border-top: 4px solid var(--lilac); }
.plan-block ul {
  font-size: 0.9rem;
  color: var(--gray);
  padding-left: 1.1rem;
  line-height: 1.8;
}
.irreversible-step {
  background: var(--black);
  color: var(--cream);
  border-radius: 4px;
  padding: 1.5rem 1.75rem;
  margin: 2rem 0;
}
.irreversible-step .step-label {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--orange);
  margin-bottom: 0.5rem;
}
.irreversible-step p { font-size: 1rem; line-height: 1.6; }

/* COPY NOTICE */
.copy-notice {
  display: none;
  font-size: 0.78rem;
  color: var(--green);
  font-weight: 600;
  margin-left: 0.5rem;
}
.copy-notice.visible { display: inline; }