/* =========================
   PetDentify · page-app.css
   Purpose: owner-app page (/app)
   ========================= */

.app-hero {
  padding: var(--space-9) 0 var(--space-8);
  background: linear-gradient(180deg, #f6fbf8 0%, #ffffff 100%);
  border-bottom: 1px solid var(--line);
}

.app-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
  gap: var(--space-9);
  align-items: center;
}

.app-hero-copy h1 {
  margin: var(--space-2) 0 var(--space-4);
  font-size: clamp(2rem, 4.4vw, 3rem);
  line-height: var(--leading-tight);
  letter-spacing: -0.02em;
}

.app-hero-copy .lead {
  margin: 0;
  max-width: 46ch;
  color: #334155;
  font-size: var(--text-lg);
  line-height: var(--leading-normal);
}

.app-hero-note {
  margin: var(--space-4) 0 0;
  color: var(--muted);
  font-size: var(--text-sm);
}

/* ---------- Walkthrough video ---------- */
.app-hero-video {
  margin: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
}

.app-video {
  width: 100%;
  max-width: 300px;
  height: auto;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: #000;
  box-shadow: var(--shadow-lg);
}

.app-hero-video figcaption {
  max-width: 34ch;
  text-align: center;
  color: var(--muted);
  font-size: var(--text-sm);
  line-height: 1.5;
}

.app-hero-video figcaption strong {
  display: block;
  color: var(--fg);
  font-size: var(--text-base);
  margin-bottom: 2px;
}

/* ---------- Sections ---------- */
.app-section { padding: var(--space-9) 0; }
.app-section + .app-section { border-top: 1px solid var(--line); }

.app-section-head { max-width: 62ch; margin-bottom: var(--space-8); }
.app-section-head h2 {
  margin: var(--space-2) 0 var(--space-3);
  font-size: clamp(1.6rem, 3vw, var(--h2));
  letter-spacing: -0.015em;
}
.app-section-head .lead { margin: 0; color: #475569; }

/* ---------- Four setup steps ---------- */
.app-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: var(--space-5);
}

.app-step { padding: var(--space-6); position: relative; }

.app-step-number {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 999px;
  background: var(--green);
  color: #fff;
  font-weight: 700;
  font-size: var(--text-sm);
  margin-bottom: var(--space-3);
}

.app-step h3 { margin: 0 0 var(--space-2); font-size: 1.0625rem; }
.app-step p { margin: 0; color: #475569; line-height: var(--leading-normal); }

.app-section-link-row { margin-top: var(--space-7); }

/* ---------- Why an app ---------- */
.app-update-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: var(--space-9);
  align-items: start;
}

.app-update-grid h2 {
  margin: var(--space-2) 0 var(--space-4);
  font-size: clamp(1.6rem, 3vw, var(--h2));
  letter-spacing: -0.015em;
}

.app-update-grid p { color: #475569; line-height: var(--leading-normal); }

.app-finder-note { padding: var(--space-6); background: #f8fafc; }
.app-finder-note h3 { margin: 0 0 var(--space-4); font-size: 1.0625rem; }

.app-finder-list {
  margin: 0 0 var(--space-4);
  padding: 0;
  list-style: none;
  display: grid;
  gap: var(--space-3);
}

.app-finder-list li {
  padding-left: 26px;
  position: relative;
  color: #475569;
  line-height: 1.5;
}

.app-finder-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 7px;
  width: 14px;
  height: 8px;
  border-left: 2.5px solid var(--green);
  border-bottom: 2.5px solid var(--green);
  transform: rotate(-45deg);
}

.app-finder-negative {
  margin: 0 0 var(--space-4);
  padding: var(--space-4);
  border-radius: 10px;
  background: #fff;
  border: 1px solid var(--line);
  color: var(--fg);
  font-weight: 600;
  line-height: 1.5;
}

/* ---------- Privacy ---------- */
.app-privacy { max-width: 70ch; }
.app-privacy h2 {
  margin: var(--space-2) 0 var(--space-3);
  font-size: clamp(1.5rem, 2.6vw, 1.9rem);
  letter-spacing: -0.015em;
}
.app-privacy p { color: #475569; line-height: var(--leading-normal); }
.app-privacy-links { display: flex; flex-wrap: wrap; gap: var(--space-5); margin-top: var(--space-4); }

/* ---------- Final CTA ---------- */
.app-final {
  padding: var(--space-9) 0;
  border-top: 1px solid var(--line);
  background: #f6fbf8;
}

.app-final-inner {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  align-items: center;
  justify-content: space-between;
}

.app-final-inner h2 {
  margin: var(--space-2) 0 var(--space-2);
  font-size: clamp(1.5rem, 2.8vw, 1.9rem);
  letter-spacing: -0.015em;
  max-width: 24ch;
}

.app-final-inner p { margin: 0; color: #475569; max-width: 52ch; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .app-hero-inner,
  .app-update-grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }
  .app-hero-video { order: -1; }
  .app-video { max-width: 260px; }
}

@media (max-width: 560px) {
  .app-hero { padding-top: var(--space-8); }
  .app-section { padding: var(--space-8) 0; }
  .app-final-inner { flex-direction: column; align-items: flex-start; }
}