/* ─────────────────────────────────────────
   PetPulse Landing Page — style.css
   ───────────────────────────────────────── */

/* === RESET & BASE === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:        #6B9B8C;
  --primary-dark:   #4A7A6C;
  --primary-light:  #8CB4A7;
  --bg:             #FAFAF8;
  --bg-alt:         #F3F4F0;
  --white:          #FFFFFF;
  --text:           #1A1A1A;
  --text-2:         #4B5563;
  --text-3:         #9CA3AF;
  --border:         #E5E7EB;
  --radius-sm:      8px;
  --radius:         16px;
  --radius-lg:      24px;
  --shadow-sm:      0 1px 4px rgba(0,0,0,.06);
  --shadow:         0 4px 20px rgba(0,0,0,.08);
  --shadow-lg:      0 16px 60px rgba(0,0,0,.12);
  --font:           'Inter', system-ui, sans-serif;
  --transition:     .2s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { text-decoration: none; color: inherit; }
img { display: block; max-width: 100%; }

.container {
  max-width: 1120px;
  margin-inline: auto;
  padding-inline: 24px;
}

.section { padding-block: 96px; }

/* === BUTTONS === */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font);
  font-weight: 600;
  border-radius: 50px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
  border: 2px solid transparent;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 8px 24px rgba(107,155,140,.35); }
.btn-outline {
  background: transparent;
  color: var(--primary-dark);
  border-color: var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--white); transform: translateY(-1px); }
.btn-sm  { font-size: 14px; padding: 8px 20px; }
.btn-lg  { font-size: 16px; padding: 14px 28px; }

/* === NAV === */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250,250,248,.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.nav.scrolled { border-bottom-color: var(--border); }

.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 64px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  margin-right: auto;
}
.logo-icon { font-size: 22px; }
.logo-text { color: var(--primary-dark); }

.nav-links {
  display: flex;
  gap: 28px;
}
.nav-links a {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--primary-dark); }

/* === HERO === */
.hero {
  position: relative;
  padding-top: 80px;
  background: linear-gradient(160deg, #e8f3ef 0%, #f5f9f7 40%, var(--bg) 100%);
  overflow: hidden;
}

.hero-bg-blobs { position: absolute; inset: 0; pointer-events: none; }
.blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: .45;
}
.blob-1 {
  width: 500px; height: 500px;
  background: radial-gradient(circle, #a7d4c8, transparent 70%);
  top: -120px; right: -100px;
}
.blob-2 {
  width: 350px; height: 350px;
  background: radial-gradient(circle, #c7e8e0, transparent 70%);
  bottom: 80px; left: -60px;
}
.blob-3 {
  width: 250px; height: 250px;
  background: radial-gradient(circle, #b4d7ce, transparent 70%);
  top: 40%; left: 40%;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  align-items: center;
  gap: 64px;
  padding-bottom: 80px;
}

.hero-copy { max-width: 520px; }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(107,155,140,.12);
  color: var(--primary-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 50px;
  border: 1px solid rgba(107,155,140,.25);
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(36px, 5vw, 58px);
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.03em;
  color: var(--text);
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 18px;
  color: var(--text-2);
  line-height: 1.7;
  margin-bottom: 36px;
}

.hero-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-note {
  font-size: 13px;
  color: var(--text-3);
}

/* === PHONE MOCKUP === */
.hero-phone {
  display: flex;
  justify-content: center;
  align-items: center;
}
.phone-wrap {
  position: relative;
  display: flex;
  justify-content: center;
}
.phone-glow {
  position: absolute;
  inset: -30px;
  background: radial-gradient(ellipse at center, rgba(107,155,140,.25) 0%, transparent 70%);
  pointer-events: none;
  border-radius: 50%;
}
.phone-frame {
  width: 280px;
  background: #1a1a1a;
  border-radius: 44px;
  padding: 12px;
  box-shadow:
    0 0 0 1px #333,
    0 30px 70px rgba(0,0,0,.4),
    inset 0 0 0 2px #2a2a2a;
  position: relative;
  z-index: 1;
}
.phone-screen {
  background: var(--bg);
  border-radius: 34px;
  overflow: hidden;
  height: 560px;
  display: flex;
  flex-direction: column;
}

/* Phone internals – mock UI */
.mock-status-bar {
  background: var(--bg);
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 20px 4px;
  font-size: 11px;
  font-weight: 600;
  color: var(--text);
}
.mock-icons { letter-spacing: 2px; font-size: 9px; }

.mock-app { flex: 1; overflow: hidden; padding: 8px 12px; }
.mock-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.mock-title { font-size: 18px; font-weight: 700; color: var(--text); }
.mock-icon-btn { font-size: 16px; color: var(--primary); }

.mock-pet-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}
.mock-pet-card {
  background: white;
  border-radius: 14px;
  padding: 10px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  box-shadow: var(--shadow-sm);
}
.mock-pet-img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 2px;
}
.mock-pet-card--dog .mock-pet-img   { background: #EDE9FE; }
.mock-pet-card--cat .mock-pet-img   { background: #FCE7F3; }
.mock-pet-card--rabbit .mock-pet-img{ background: #FCE7F3; }
.mock-pet-card--add .mock-pet-img   { background: #F3F4F6; color: #9CA3AF; font-size: 20px; }
.mock-pet-name { font-size: 12px; font-weight: 600; color: var(--text); }
.mock-pet-sub  { font-size: 10px; color: var(--text-3); }

.mock-upcoming { }
.mock-section-label {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--text-3);
  display: block;
  margin-bottom: 8px;
}
.mock-reminder {
  display: flex;
  align-items: center;
  gap: 8px;
  background: white;
  border-radius: 10px;
  padding: 8px 10px;
  margin-bottom: 6px;
  box-shadow: var(--shadow-sm);
}
.mock-r-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.mock-r-info { flex: 1; }
.mock-r-title { font-size: 11px; font-weight: 600; color: var(--text); display: block; }
.mock-r-date  { font-size: 10px; color: var(--text-3); display: block; }
.mock-r-check { font-size: 14px; color: var(--border); }

.mock-tab-bar {
  display: flex;
  background: white;
  border-top: 1px solid var(--border);
  padding: 8px 0 16px;
}
.mock-tab {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  font-size: 9px;
  color: var(--text-3);
  font-weight: 500;
}
.mock-tab span:first-child { font-size: 16px; }
.mock-tab.active { color: var(--primary-dark); }

.hero-wave {
  position: relative;
  margin-top: -1px;
  line-height: 0;
}
.hero-wave svg { width: 100%; display: block; }

/* === PROOF STRIP === */
.proof { padding-block: 48px; }
.proof-inner {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: white;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
}
.proof-stat {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 28px 20px;
  gap: 4px;
}
.proof-num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary-dark);
  letter-spacing: -0.02em;
}
.proof-label {
  font-size: 13px;
  color: var(--text-3);
  font-weight: 500;
  text-align: center;
}
.proof-divider {
  width: 1px;
  height: 56px;
  background: var(--border);
  flex-shrink: 0;
}

/* === SECTION HEADER === */
.section-header {
  text-align: center;
  margin-bottom: 56px;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: 56px;
}
.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: var(--primary-dark);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 16px;
  color: var(--text);
}
.section-sub {
  font-size: 17px;
  color: var(--text-2);
  line-height: 1.7;
}

/* === FEATURES === */
.features { background: var(--bg-alt); }

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card--wide { grid-column: span 3; }

.feature-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.feature-card--wide {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  flex-wrap: wrap;
}
.feature-card--wide .feature-text { flex: 1; min-width: 240px; }
.feature-card--wide .feature-tags { display: flex; flex-wrap: wrap; gap: 8px; align-items: flex-start; padding-top: 4px; }

.feature-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  flex-shrink: 0;
  margin-bottom: 16px;
}
.feature-card--wide .feature-icon { margin-bottom: 0; }

.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
  color: var(--text);
}
.feature-card p {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.65;
}

/* Tags */
.tag {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
}
.tag--blue   { background: #DBEAFE; color: #1D4ED8; }
.tag--purple { background: #EDE9FE; color: #6D28D9; }
.tag--pink   { background: #FCE7F3; color: #BE185D; }
.tag--red    { background: #FEE2E2; color: #B91C1C; }
.tag--yellow { background: #FEF3C7; color: #B45309; }
.tag--green  { background: #D1FAE5; color: #065F46; }
.tag--cyan   { background: #CFFAFE; color: #0E7490; }
.tag--indigo { background: #E0E7FF; color: #3730A3; }
.tag--gray   { background: #F3F4F6; color: #374151; }

/* === HOW IT WORKS === */
.how { background: var(--bg); }

.steps {
  display: flex;
  align-items: flex-start;
  gap: 0;
  max-width: 960px;
  margin-inline: auto;
}
.step {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 16px;
}
.step-number {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  font-size: 20px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  box-shadow: 0 4px 16px rgba(107,155,140,.35);
}
.step-content h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
}
.step-content p {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.65;
  padding-inline: 8px;
}
.step-connector {
  flex-shrink: 0;
  width: 40px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary-light), #d1e8e0);
  margin-top: 26px;
  border-radius: 2px;
}

/* === PETS === */
.pets-section { background: var(--bg-alt); }
.pets-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  max-width: 700px;
  margin-inline: auto;
}
.pet-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: white;
  border: 1.5px solid color-mix(in srgb, var(--pet-color) 25%, transparent);
  color: var(--text);
  padding: 12px 22px;
  border-radius: 50px;
  font-size: 15px;
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(0,0,0,.05);
  transition: transform var(--transition), box-shadow var(--transition);
}
.pet-pill:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 20px color-mix(in srgb, var(--pet-color) 25%, transparent);
}
.pet-emoji { font-size: 20px; }

/* === PRIVACY === */
.privacy-section { background: var(--bg); }
.privacy-card {
  background: linear-gradient(135deg, #e8f4f0 0%, #f0f7f4 100%);
  border: 1px solid rgba(107,155,140,.2);
  border-radius: var(--radius-lg);
  padding: 52px 56px;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 40px;
  align-items: center;
}
.privacy-icon {
  font-size: 56px;
  line-height: 1;
}
.privacy-text h2 {
  font-size: 26px;
  font-weight: 800;
  margin-bottom: 10px;
  color: var(--text);
}
.privacy-text p {
  font-size: 16px;
  color: var(--text-2);
  line-height: 1.7;
}
.privacy-checks {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}
.check-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  white-space: nowrap;
}
.check-dot--green {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
}

/* === DOWNLOAD CTA === */
.download { background: var(--bg-alt); }
.download-card {
  position: relative;
  background: linear-gradient(135deg, var(--primary-dark) 0%, #3a6a5e 100%);
  border-radius: var(--radius-lg);
  padding: 72px 56px;
  text-align: center;
  overflow: hidden;
  color: white;
}
.download-blob {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,.08) 0%, transparent 70%);
  top: -200px;
  right: -150px;
  pointer-events: none;
}
.download-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .1em;
  color: rgba(255,255,255,.7);
  margin-bottom: 16px;
}
.download-title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 800;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: 16px;
  position: relative;
}
.download-sub {
  font-size: 17px;
  color: rgba(255,255,255,.75);
  max-width: 440px;
  margin-inline: auto;
  margin-bottom: 40px;
}
.download-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,.12);
  border: 1.5px solid rgba(255,255,255,.3);
  color: white;
  padding: 14px 28px;
  border-radius: 14px;
  transition: all var(--transition);
  text-decoration: none;
  backdrop-filter: blur(4px);
}
.store-btn:hover {
  background: rgba(255,255,255,.22);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,.2);
}
.store-icon { opacity: .9; display: flex; }
.store-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  gap: 1px;
}
.store-sub  { font-size: 12px; opacity: .75; }
.store-name { font-size: 18px; font-weight: 700; }

/* === FOOTER === */
.footer {
  background: var(--text);
  color: rgba(255,255,255,.6);
  padding-block: 40px;
}
.footer-inner {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.footer .nav-logo { color: white; }
.footer .logo-text { color: rgba(255,255,255,.9); }
.footer-tagline {
  flex: 1;
  font-size: 14px;
  text-align: center;
}
.footer-links {
  display: flex;
  gap: 20px;
}
.footer-links a {
  font-size: 14px;
  transition: color var(--transition);
}
.footer-links a:hover { color: white; }

/* === RESPONSIVE === */
@media (max-width: 1000px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-phone { order: -1; }
  .hero-copy  { max-width: 100%; text-align: center; }
  .hero-actions { justify-content: center; }
  .hero-note { text-align: center; }
  .badge { display: block; width: fit-content; margin-inline: auto; }
  .features-grid { grid-template-columns: 1fr 1fr; }
  .feature-card--wide { grid-column: span 2; }
  .privacy-card { grid-template-columns: 1fr; text-align: center; }
  .privacy-checks { align-items: center; }
}

@media (max-width: 720px) {
  .section { padding-block: 64px; }
  .nav-links { display: none; }
  .features-grid { grid-template-columns: 1fr; }
  .feature-card--wide { grid-column: span 1; flex-direction: column; }
  .steps { flex-direction: column; align-items: center; gap: 32px; }
  .step-connector { width: 2px; height: 32px; }
  .proof-inner { flex-direction: column; }
  .proof-divider { width: 80%; height: 1px; }
  .download-card { padding: 48px 28px; }
  .privacy-card { padding: 36px 28px; }
  .footer-inner { flex-direction: column; text-align: center; }
  .footer-tagline { order: 1; }
  .footer-links { justify-content: center; }
}

@media (max-width: 480px) {
  .hero { padding-top: 40px; }
  .phone-frame { width: 240px; }
  .phone-screen { height: 475px; }
}