/* ============================================================
   KeepClose - page-specific styles (loads after design-system.css)
   ============================================================ */

/* Hero */
.hero { position: relative; text-align: center; padding-top: clamp(var(--space-16), 9vw, var(--space-24)); padding-bottom: 0; overflow: hidden; }
.hero::before { content: ""; position: absolute; inset: 0; z-index: -1; background: radial-gradient(120% 75% at 50% 0%, rgba(108,79,203,0.07), transparent 60%); }
.hero h1 { font-size: var(--step-4); letter-spacing: -0.015em; max-width: 15ch; margin-inline: auto; }
.hero .lead { margin: var(--space-6) auto 0; }
.hero-cta { margin-top: var(--space-8); display: flex; flex-direction: column; align-items: center; gap: var(--space-4); }
.trust-line { font-size: var(--step--1); color: var(--color-muted); max-width: 40ch; }
.hero-shot { margin-top: clamp(var(--space-12), 8vw, var(--space-24)); }
.hero-shot .device-shot { max-width: 340px; }

/* Feature rows (zigzag) */
.rows { display: grid; gap: clamp(var(--space-16), 9vw, var(--space-24)); }
.row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--row-gap); align-items: center; }
.row__text { max-width: 46ch; }
.row__text h3 { font-size: var(--step-2); margin-bottom: var(--space-4); }
.row__text p { color: var(--color-ink-body); }
@media (min-width: 768px) {
  .row--reverse .row__media { order: 2; }
  .row--reverse .row__text  { order: 1; }
}

/* How it works — animated 3-step flow */
.steps { position: relative; display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-8); margin-top: var(--space-12); }
/* gradient thread that draws itself across the badges on scroll (desktop) */
.step-thread { position: absolute; top: 1.75rem; left: 16%; right: 16%; height: 3px; border-radius: 3px; overflow: hidden; opacity: 0; transform: none; transition: opacity 0.4s ease; }
.step-thread.is-in { opacity: 1; }
.step-thread::after { content: ""; position: absolute; inset: 0; border-radius: inherit; background: var(--gradient-thread); transform: scaleX(0); transform-origin: left; }
.step-thread.is-in::after { animation: threadDraw 1.15s cubic-bezier(0.22, 1, 0.36, 1) 0.15s forwards; }
@keyframes threadDraw { to { transform: scaleX(1); } }

.step { position: relative; text-align: left; transition-delay: calc(var(--i, 0) * 150ms); }
.step .num {
  position: relative; z-index: 1; font-family: var(--font-display); font-size: 1.35rem; font-weight: 600; color: #fff;
  width: 3.4rem; height: 3.4rem; border-radius: 50%; display: grid; place-items: center; margin-bottom: var(--space-5);
  background: var(--gradient-thread); background-size: 220% 220%; background-position: 0% 50%;
  box-shadow: 0 10px 24px -10px rgba(194,65,127,0.5), inset 0 0 0 1px rgba(255,255,255,0.22);
  opacity: 0; transform: translateY(12px) scale(0.9);
  transition: opacity 0.55s ease, transform 0.55s cubic-bezier(0.22, 1, 0.36, 1), box-shadow 0.3s ease;
  transition-delay: calc(var(--i, 0) * 150ms + 0.12s);
}
.step.is-in .num { opacity: 1; transform: none; }
.step h3 { font-size: var(--step-1); margin-bottom: var(--space-2); }
.step p { color: var(--color-ink-body); font-size: var(--step-0); }
.step:hover .num { transform: translateY(-3px) scale(1.05); box-shadow: 0 16px 30px -10px rgba(194,65,127,0.6), inset 0 0 0 1px rgba(255,255,255,0.35); animation: gradPan 4s ease infinite; }
@keyframes gradPan { 0%, 100% { background-position: 0% 50%; } 50% { background-position: 100% 50%; } }

@media (prefers-reduced-motion: reduce) {
  .step .num { opacity: 1; transform: none; transition: none; }
  .step:hover .num { animation: none; }
  .step-thread { opacity: 1; }
  .step-thread::after { transform: scaleX(1); animation: none; }
}

/* Tagline band */
.tagline-band { padding-block: clamp(var(--space-12), 8vw, var(--space-16)); text-align: center; }
.tagline-band .container { display: flex; justify-content: center; }
.tagline-band__line {
  position: relative; display: inline-block; font-family: var(--font-display); font-style: italic; font-weight: 500;
  font-size: clamp(1.9rem, 1.3rem + 3.2vw, 3.4rem); line-height: 1.15; color: var(--color-ink); max-width: 18ch; padding-bottom: 0.5rem;
}
.tagline-band__line::after {
  content: ""; position: absolute; left: 50%; bottom: -0.15rem; height: 4px; width: 0; border-radius: 4px;
  background: var(--gradient-thread); transform: translateX(-50%); transition: width 1.1s cubic-bezier(0.22, 1, 0.36, 1) 0.25s;
}
.tagline-band__line.is-in::after { width: min(72%, 22rem); }
@media (prefers-reduced-motion: reduce) { .tagline-band__line::after { transition: none; width: min(72%, 22rem); } }

/* Privacy trust bullets */
.privacy .trust-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: var(--space-4) var(--space-8); margin-top: var(--space-8); max-width: 52ch; }
.trust-item { display: flex; gap: 0.6rem; align-items: flex-start; font-weight: 500; color: var(--color-ink); }
.trust-item svg { width: 22px; height: 22px; flex: none; color: var(--knot-teal); margin-top: 2px; }

/* Testimonials */
.testimonials .head { text-align: center; margin-bottom: var(--space-12); }
.testimonials .subnote { font-size: var(--step--1); color: var(--color-muted); margin-top: var(--space-3); }
.quote-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
.quote { background: var(--color-surface); border: 1px solid var(--color-line); border-radius: var(--radius-card); padding: var(--space-8); display: flex; flex-direction: column; gap: var(--space-4); box-shadow: 0 1px 2px rgba(34,51,92,0.05), 0 14px 30px -20px rgba(34,51,92,0.25); }
.quote .stars { color: var(--knot-orange); letter-spacing: 2px; font-size: 0.9rem; }
.quote blockquote { margin: 0; font-family: var(--font-display); font-size: var(--step-1); line-height: 1.4; color: var(--color-ink); }
.quote .attr { font-size: var(--step--1); color: var(--color-muted); font-weight: 600; }

/* Pricing */
.pricing .card { background: var(--color-surface); border: 1px solid var(--color-line-strong); border-radius: 28px; max-width: 560px; margin-inline: auto; padding: clamp(var(--space-8), 5vw, var(--space-16)); text-align: center; position: relative; overflow: hidden; box-shadow: 0 1px 2px rgba(34,51,92,0.05), 0 30px 60px -30px rgba(34,51,92,0.3); }
.pricing .card::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: var(--gradient-thread); }
.pricing .price { font-family: var(--font-display); font-size: clamp(2.5rem, 6vw, 3.6rem); color: var(--color-ink); margin: var(--space-4) 0; }
.pricing .price span { font-family: var(--font-body); font-size: 1rem; color: var(--color-muted); font-weight: 500; }
.price-annual { color: var(--color-muted); font-size: var(--step-0); margin-top: -0.35rem; margin-bottom: var(--space-6); }
.pricing ul { list-style: none; padding: 0; margin: var(--space-8) auto; max-width: 30ch; text-align: left; display: grid; gap: var(--space-3); }
.pricing li { display: flex; gap: 0.6rem; align-items: flex-start; }
.pricing li svg { width: 20px; height: 20px; flex: none; color: var(--knot-teal); margin-top: 3px; }
.pricing .cta-wrap { display: flex; flex-direction: column; align-items: center; gap: var(--space-3); margin-top: var(--space-8); }

/* Closing */
.closing { text-align: center; }
.closing h2 { font-size: var(--step-3); max-width: 20ch; margin-inline: auto; }
.closing .signoff { font-family: var(--font-display); font-style: italic; font-size: var(--step-2); color: var(--color-ink); max-width: 24ch; margin: var(--space-12) auto 0; }

/* Mobile sticky CTA */
.sticky-cta { position: fixed; left: 0; right: 0; bottom: 0; z-index: 50; background: color-mix(in srgb, var(--color-surface) 96%, transparent); backdrop-filter: blur(10px); border-top: 1px solid var(--color-line); padding: 0.6rem var(--container-pad); display: none; justify-content: center; transform: translateY(100%); transition: transform 0.25s ease; }
.sticky-cta.is-visible { transform: translateY(0); }
.sticky-cta .appstore-btn { padding-block: 0.6rem; }

@media (max-width: 767px) {
  .row { grid-template-columns: 1fr; gap: var(--space-8); }
  .row__media { order: -1; }
  .row__text { max-width: none; }
  .steps { grid-template-columns: 1fr; gap: var(--space-8); }
  .step-thread { display: none; }
  .quote-grid { grid-template-columns: 1fr; }
  .privacy .trust-grid { grid-template-columns: 1fr; }
  .sticky-cta { display: flex; }
  body { padding-bottom: 4.5rem; }
  .hero-shot .device-shot { max-width: 260px; }
  /* full "MissionPilot KeepClose" lockup needs the room; download lives in the sticky bar */
  .header-cta { display: none; }
}
@media (min-width: 768px) and (max-width: 1023px) {
  .quote-grid { grid-template-columns: 1fr 1fr; }
}
@media (prefers-reduced-motion: reduce) { .sticky-cta { transition: none; } }