/* iknowihave — marketing site styles. Hand-rolled, ADS color palette. */
:root {
  --c-bg: #FFFFFF;
  --c-bg-alt: #F7F8F9;
  --c-fg: #172B4D;
  --c-muted: #44546F;
  --c-subtle: #626F86;
  --c-border: #DCDFE4;
  --c-brand: #0C66E4;
  --c-brand-strong: #0055CC;
  --c-brand-bg: #E9F2FF;
  --c-success: #1F845A;
  --c-warning-bg: #FFF7D6;
  --radius: 6px;
  --radius-lg: 12px;
  --shadow-sm: 0 1px 2px rgba(9,30,66,.08);
  --shadow-md: 0 4px 8px rgba(9,30,66,.10);
  --shadow-lg: 0 8px 16px rgba(9,30,66,.12);
  --max: 1080px;
  --pad: clamp(16px, 4vw, 48px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --c-bg: #1D2125;
    --c-bg-alt: #22272B;
    --c-fg: #B6C2CF;
    --c-muted: #9FADBC;
    --c-subtle: #8C9BAB;
    --c-border: #2C333A;
    --c-brand: #579DFF;
    --c-brand-strong: #85B8FF;
    --c-brand-bg: #1C2B41;
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Inter", Roboto, "Helvetica Neue", Arial, sans-serif;
  font-size: 17px;
  line-height: 1.55;
  color: var(--c-fg);
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-brand); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { color: var(--c-fg); margin: 0; line-height: 1.15; letter-spacing: -.01em; }
h1 { font-size: clamp(40px, 6vw, 64px); font-weight: 700; letter-spacing: -.02em; }
h2 { font-size: clamp(28px, 3.5vw, 40px); font-weight: 700; }
h3 { font-size: 20px; font-weight: 600; }
p { margin: 0; color: var(--c-muted); }

/* Nav */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px var(--pad);
  max-width: var(--max);
  margin: 0 auto;
  position: sticky;
  top: 0;
  background: rgba(255,255,255,.85);
  backdrop-filter: saturate(180%) blur(12px);
  z-index: 10;
  border-bottom: 1px solid var(--c-border);
}
@media (prefers-color-scheme: dark) {
  .nav { background: rgba(29,33,37,.85); }
}
.brand { font-weight: 700; font-size: 22px; letter-spacing: -.02em; color: var(--c-fg); }
.brand:hover { text-decoration: none; }
.brand-mark { color: var(--c-brand); }
.nav-links { display: flex; gap: 24px; align-items: center; }
.nav-links a:not(.btn) { color: var(--c-muted); font-weight: 500; font-size: 15px; }
.nav-links a:not(.btn):hover { color: var(--c-fg); text-decoration: none; }
@media (max-width: 640px) {
  .nav-links a:not(.btn) { display: none; }
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 16px;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color .15s ease, transform .05s ease;
}
.btn:hover { text-decoration: none; }
.btn-primary {
  background: var(--c-brand);
  color: #fff;
}
.btn-primary:hover { background: var(--c-brand-strong); color: #fff; }
.btn-link {
  background: transparent;
  color: var(--c-brand);
}
.btn-large { padding: 12px 24px; font-size: 17px; }

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
  padding: clamp(48px, 8vw, 96px) var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}
.eyebrow {
  display: inline-block;
  background: var(--c-brand-bg);
  color: var(--c-brand-strong);
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 24px;
}
.lede { font-size: 19px; color: var(--c-muted); margin-top: 16px; max-width: 540px; }
.lede.center { margin-left: auto; margin-right: auto; text-align: center; margin-top: 24px; }
.cta-row { display: flex; gap: 12px; margin: 32px 0 12px; flex-wrap: wrap; }
.micro-copy { font-size: 13px; color: var(--c-subtle); }

@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
}

/* Hero art: simulated grid */
.hero-art .grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  transform: rotate(-2deg);
}
.card-mini {
  background: var(--c-bg-alt);
  border: 1px solid var(--c-border);
  border-radius: var(--radius);
  padding: 12px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease;
}
.card-mini:nth-child(2n) { transform: translateY(12px); }
.card-mini .ph { font-size: 32px; margin-bottom: 8px; }
.card-mini .t { font-weight: 600; color: var(--c-fg); font-size: 14px; }
.card-mini .m { font-size: 12px; color: var(--c-subtle); margin-top: 2px; }

/* Problem section */
.problem {
  padding: clamp(48px, 8vw, 96px) var(--pad);
  max-width: var(--max);
  margin: 0 auto;
  text-align: center;
}
.problem h2 { max-width: 720px; margin: 0 auto 32px; }
.cols {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin: 32px 0;
}
.cols .big {
  font-size: 18px;
  font-weight: 500;
  color: var(--c-fg);
  background: var(--c-warning-bg);
  padding: 24px;
  border-radius: var(--radius-lg);
}
@media (prefers-color-scheme: dark) {
  .cols .big { background: #2D2A1E; color: #F0E6CC; }
}
@media (max-width: 760px) {
  .cols { grid-template-columns: 1fr; }
}

/* How it works */
.how {
  background: var(--c-bg-alt);
  padding: clamp(48px, 8vw, 96px) var(--pad);
}
.how h2 { text-align: center; max-width: var(--max); margin: 0 auto 48px; }
.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  list-style: none;
  padding: 0;
  max-width: var(--max);
  margin: 0 auto;
}
.steps li {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--c-brand);
  color: #fff;
  font-weight: 700;
  margin-bottom: 16px;
}
.steps h3 { margin-bottom: 8px; }
@media (max-width: 760px) {
  .steps { grid-template-columns: 1fr; }
}

/* Features */
.features {
  padding: clamp(48px, 8vw, 96px) var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}
.features h2 { text-align: center; margin-bottom: 48px; }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}
.feature-grid article {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 24px;
}
.feature-grid h3 { margin-bottom: 8px; display: flex; align-items: center; gap: 8px; }
.badge {
  display: inline-block;
  background: var(--c-brand-bg);
  color: var(--c-brand-strong);
  font-size: 11px;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: .04em;
}

/* Pricing */
.pricing {
  background: var(--c-bg-alt);
  padding: clamp(48px, 8vw, 96px) var(--pad);
}
.pricing h2 { text-align: center; }
.plans {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 720px;
  margin: 48px auto 0;
}
.plan {
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  position: relative;
  display: flex;
  flex-direction: column;
}
.plan-paid { border-color: var(--c-brand); box-shadow: var(--shadow-md); }
.ribbon {
  position: absolute;
  top: -12px;
  right: 24px;
  background: var(--c-brand);
  color: #fff;
  padding: 4px 12px;
  border-radius: var(--radius);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .04em;
}
.plan h3 { margin-bottom: 16px; }
.price { font-size: 40px; font-weight: 700; color: var(--c-fg); margin: 0; }
.price span { font-size: 17px; font-weight: 500; color: var(--c-subtle); }
.annual { font-size: 14px; color: var(--c-subtle); margin-top: 4px; }
.plan ul {
  list-style: none;
  padding: 0;
  margin: 24px 0;
  flex: 1;
}
.plan li {
  padding: 8px 0;
  border-bottom: 1px solid var(--c-border);
  color: var(--c-muted);
  font-size: 15px;
}
.plan li:last-child { border-bottom: 0; }
.plan li::before {
  content: "✓";
  color: var(--c-success);
  font-weight: 700;
  margin-right: 8px;
}
.plan .btn { margin-top: auto; }
@media (max-width: 760px) {
  .plans { grid-template-columns: 1fr; }
}

/* FAQ */
.faq {
  padding: clamp(48px, 8vw, 96px) var(--pad);
  max-width: 760px;
  margin: 0 auto;
}
.faq h2 { text-align: center; margin-bottom: 48px; }
.faq details {
  border-bottom: 1px solid var(--c-border);
  padding: 16px 0;
}
.faq summary {
  cursor: pointer;
  font-weight: 600;
  font-size: 17px;
  color: var(--c-fg);
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 24px;
  font-weight: 400;
  color: var(--c-subtle);
  transition: transform .2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq details p { margin-top: 12px; color: var(--c-muted); }

/* Closer */
.closer {
  text-align: center;
  padding: clamp(48px, 8vw, 96px) var(--pad);
}
.closer h2 { margin-bottom: 24px; }
.closer .micro-copy { margin-top: 16px; }

/* Footer */
.foot {
  border-top: 1px solid var(--c-border);
  padding: 24px var(--pad);
  max-width: var(--max);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--c-subtle);
}
.foot nav { display: flex; gap: 16px; }
.foot a { color: var(--c-subtle); }
@media (max-width: 600px) {
  .foot { flex-direction: column; gap: 12px; }
}