/* 80-20 Software ------------------------------------------------ */

:root {
  --ink: #0e1116;
  --ink-soft: #1a1f27;
  --paper: #f6f2e9;
  --paper-pure: #fffdf8;
  --accent: #ff5a1f;     /* signal orange */
  --accent-2: #2547ff;   /* electric blue */
  --lime: #ccf24a;       /* bold lime */
  --line: #0e1116;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, .brand-mark, .stat-figure {
  font-family: "Space Grotesk", system-ui, sans-serif;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

a { color: inherit; text-decoration: none; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap;
}

/* HEADER -------------------------------------------------------- */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px clamp(20px, 5vw, 72px);
  border-bottom: 3px solid var(--line);
  background: var(--paper);
  position: sticky;
  top: 0;
  z-index: 20;
}

.brand { display: flex; align-items: baseline; gap: 10px; }
.brand-mark {
  font-size: 1.5rem;
  font-weight: 700;
  background: var(--ink);
  color: var(--paper);
  padding: 4px 10px;
}
.brand-slash { color: var(--accent); }
.brand-word { font-weight: 600; font-size: 1.05rem; letter-spacing: 0.01em; }

.nav { display: flex; align-items: center; gap: clamp(14px, 2.5vw, 34px); }
.nav a { font-weight: 500; font-size: 0.98rem; }
.nav a:not(.nav-cta):hover { color: var(--accent); }
.nav-cta {
  background: var(--ink);
  color: var(--paper);
  padding: 9px 18px;
  border: 3px solid var(--ink);
  font-weight: 600;
  transition: background 0.15s ease, color 0.15s ease;
}
.nav-cta:hover { background: var(--accent); border-color: var(--accent); color: var(--ink); }

/* BUTTONS ------------------------------------------------------- */
.btn {
  display: inline-block;
  font-weight: 600;
  font-size: 1rem;
  padding: 15px 26px;
  border: 3px solid var(--ink);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.15s ease, color 0.15s ease;
}
.btn-primary { background: var(--accent); color: var(--ink); }
.btn-primary:hover { transform: translateY(-2px); }
.btn-ghost { background: transparent; color: var(--ink); }
.btn-ghost:hover { background: var(--ink); color: var(--paper); }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-dark:hover { transform: translateY(-2px); }

/* HERO ---------------------------------------------------------- */
.hero {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  padding: clamp(48px, 8vw, 110px) clamp(20px, 5vw, 72px);
  border-bottom: 3px solid var(--line);
}
.eyebrow {
  display: inline-block;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.8rem;
  background: var(--lime);
  color: var(--ink);
  padding: 6px 12px;
  border: 3px solid var(--ink);
  margin-bottom: 24px;
}
.hero-title {
  font-size: clamp(2.6rem, 6.2vw, 5.2rem);
  font-weight: 700;
  margin-bottom: 22px;
}
.hero-title .hl {
  background: var(--accent);
  color: var(--ink);
  padding: 0 10px;
}
.hero-sub {
  font-size: clamp(1.05rem, 1.5vw, 1.3rem);
  max-width: 38ch;
  margin-bottom: 34px;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; }

/* HERO VISUAL: 80/20 bar --------------------------------------- */
.hero-visual { display: flex; flex-direction: column; gap: 14px; }
.split-bar {
  display: grid;
  grid-template-rows: 1fr 4fr;
  height: clamp(320px, 42vw, 460px);
  border: 3px solid var(--ink);
}
.split-20, .split-80 {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 18px 22px;
}
.split-20 { background: var(--accent); border-bottom: 3px solid var(--ink); }
.split-80 { background: var(--ink); color: var(--paper); }
.split-pct {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  line-height: 1;
}
.split-label { font-weight: 500; font-size: 0.95rem; margin-top: 4px; }
.split-80 .split-label { opacity: 0.7; }
.visual-caption { font-size: 0.85rem; opacity: 0.65; }

/* SECTIONS ------------------------------------------------------ */
.section { padding: clamp(56px, 9vw, 120px) clamp(20px, 5vw, 72px); }
.section-dark { background: var(--ink); color: var(--paper); }
.section-accent { background: var(--accent-2); color: var(--paper-pure); }
.section-orange { background: var(--accent); color: var(--ink); }

.section-head { max-width: 760px; margin-bottom: 54px; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 3.2rem); font-weight: 700; }

.tag {
  display: inline-block;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  padding: 6px 12px;
  margin-bottom: 18px;
  background: var(--accent);
  color: var(--ink);
}
.tag-dark { background: var(--ink); color: var(--paper); }

/* PROBLEM CARDS ------------------------------------------------- */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.card {
  background: var(--ink-soft);
  color: var(--paper);
  border: 3px solid var(--paper);
  padding: 30px 26px;
  transition: transform 0.12s ease;
}
.card:hover { transform: translateY(-3px); }
.card-num {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  color: var(--accent);
  margin-bottom: 16px;
}
.card h3 { font-size: 1.3rem; margin-bottom: 10px; }
.card p { opacity: 0.82; }

/* OBJECTION ------------------------------------------------------ */
.objection-head { max-width: 820px; margin-bottom: clamp(48px, 6vw, 80px); }
.objection-head h2 {
  font-size: clamp(2rem, 4.6vw, 3.4rem);
  font-weight: 700;
  margin-bottom: 24px;
}
.objection-head .objection-lead {
  font-size: clamp(1.05rem, 1.5vw, 1.25rem);
  opacity: 0.85;
  margin-bottom: 16px;
}
.founder-note {
  margin-top: 32px;
  background: var(--accent);
  color: var(--ink);
  border: 3px solid var(--paper);
  padding: 30px 32px;
}
.founder-note p { font-size: clamp(1.05rem, 1.6vw, 1.25rem); max-width: 80ch; }
.founder-note strong { font-weight: 700; }
#diy .card-grid { grid-template-columns: repeat(2, 1fr); }
#diy .card-num { font-size: 1.8rem; line-height: 1; }

/* APPROACH ------------------------------------------------------ */
.approach-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: clamp(36px, 6vw, 80px);
  align-items: center;
}
.approach-copy h2 { font-size: clamp(1.9rem, 4vw, 3.2rem); margin-bottom: 22px; }
.approach-copy p { font-size: 1.1rem; margin-bottom: 18px; max-width: 46ch; }
.approach-copy .btn { margin-top: 12px; }

.benefit-list { list-style: none; display: flex; flex-direction: column; gap: 0; }
.benefit-list li {
  background: var(--paper-pure);
  color: var(--ink);
  border: 3px solid var(--ink);
  border-bottom-width: 0;
  padding: 22px 24px;
  font-size: 1.05rem;
}
.benefit-list li:last-child { border-bottom-width: 3px; }
.benefit-list strong { font-weight: 700; }

/* PROCESS / STEPS ----------------------------------------------- */
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.step {
  border: 3px solid var(--ink);
  padding: 32px 28px;
  background: var(--paper-pure);
  transition: transform 0.12s ease;
}
.step:hover { transform: translateY(-3px); }
.step-num {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  font-size: 1.4rem;
  width: 54px; height: 54px;
  display: flex; align-items: center; justify-content: center;
  background: var(--accent);
  color: var(--ink);
  border: 3px solid var(--ink);
  margin-bottom: 22px;
}
.step h3 { font-size: 1.4rem; margin-bottom: 10px; }
.step p { opacity: 0.85; }

/* STAT BAND ----------------------------------------------------- */
.stat-band {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  background: var(--lime);
  border-top: 3px solid var(--ink);
  border-bottom: 3px solid var(--ink);
}
.stat {
  padding: clamp(34px, 5vw, 56px) clamp(20px, 4vw, 48px);
  border-right: 3px solid var(--ink);
}
.stat:last-child { border-right: 0; }
.stat-figure {
  display: block;
  font-size: clamp(2.6rem, 5vw, 4rem);
  font-weight: 700;
  margin-bottom: 8px;
}
.stat-text { font-weight: 500; font-size: 1.02rem; }

/* CTA ----------------------------------------------------------- */
.section-cta { background: var(--accent); }
.cta-inner { max-width: 720px; }
.section-cta h2 { font-size: clamp(2rem, 4.4vw, 3.4rem); margin-bottom: 18px; }
.section-cta p { font-size: 1.15rem; max-width: 52ch; margin-bottom: 30px; }
.cta-form { display: flex; flex-wrap: wrap; gap: 14px; }
.cta-form input {
  flex: 1 1 220px;
  font-size: 1rem;
  padding: 15px 16px;
  border: 3px solid var(--ink);
  background: var(--paper-pure);
  font-family: inherit;
}
.cta-form input:focus { outline: 3px solid var(--ink); outline-offset: 2px; }
.cta-form .btn-primary { background: var(--ink); color: var(--paper); flex: 1 1 auto; }
.hp-field { position: absolute; left: -9999px; width: 1px; height: 1px; opacity: 0; }
.cta-note { font-size: 0.9rem; margin-top: 16px; opacity: 0.8; }

/* FOOTER -------------------------------------------------------- */
.site-footer {
  background: var(--ink);
  color: var(--paper);
  padding: clamp(40px, 6vw, 64px) clamp(20px, 5vw, 72px);
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-brand { display: flex; align-items: baseline; gap: 10px; }
.footer-tag { font-size: 1.1rem; font-weight: 500; }
.footer-legal { font-size: 0.85rem; opacity: 0.6; margin-top: 8px; }

/* RESPONSIVE ---------------------------------------------------- */
@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; }
  .approach-grid { grid-template-columns: 1fr; }
  .card-grid, .steps, #diy .card-grid { grid-template-columns: 1fr; }
  .stat-band { grid-template-columns: 1fr; }
  .stat { border-right: 0; border-bottom: 3px solid var(--ink); }
  .stat:last-child { border-bottom: 0; }
}
@media (max-width: 620px) {
  .nav a:not(.nav-cta) { display: none; }
}