/* ===== CSS Variables ===== */
:root {
  --color-primary: #2563EB;
  --color-primary-light: #3B82F6;
  --color-primary-dark: #1E3A8A;
  --color-primary-50: #EFF6FF;
  --color-primary-100: #DBEAFE;
  --color-accent: #FCD34D;
  --color-accent-dark: #F59E0B;
  --color-white: #FFFFFF;
  --color-bg: #FAFAFA;
  --color-bg-alt: #F4F4F5;
  --color-bg-warm: #F9FAFB;
  --color-text: #18181B;
  --color-text-secondary: #52525B;
  --color-text-tertiary: #A1A1AA;
  --color-border: #E4E4E7;
  --color-border-light: #F0F0F0;
  --font-family: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --max-width: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-xl: 28px;
  --shadow-sm: 0 1px 2px rgba(0,0,0,0.04);
  --shadow-md: 0 4px 24px rgba(0,0,0,0.05);
  --shadow-lg: 0 16px 48px rgba(0,0,0,0.08);
  --shadow-primary: 0 4px 20px rgba(37,99,235,0.2);
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-family);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; }

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.2s;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.035em;
  word-break: keep-all;
}

h1 { font-size: 3.75rem; }
h2 { font-size: 2.75rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.125rem; }

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--color-primary);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--color-primary);
  border-radius: 1px;
}

.section-heading {
  margin-bottom: 20px;
}

.section-desc {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  line-height: 1.8;
  max-width: 640px;
}

.text-center { text-align: center; }
.text-center .section-desc { margin: 0 auto; }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 16px 34px;
  border-radius: 100px;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: var(--font-family);
  cursor: pointer;
  border: none;
  transition: all 0.4s var(--ease-out-expo);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--color-text);
  color: var(--color-white);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.14);
  color: var(--color-white);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--color-text);
  border: 1.5px solid var(--color-border);
}

.btn-outline:hover {
  border-color: var(--color-text);
  color: var(--color-text);
  transform: translateY(-2px);
}

.btn-group {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== Store Badges ===== */
.store-badges {
  display: flex;
  gap: 10px;
  margin-top: 20px;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-text);
  color: var(--color-white);
  padding: 13px 24px;
  border-radius: 14px;
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.4s var(--ease-out-expo);
}

.store-badge:hover {
  color: var(--color-white);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.18);
}

.store-badge:active {
  transform: translateY(0);
}

.store-badge i { font-size: 1.125rem; }

/* ===== Skip Link ===== */
.skip-link {
  position: absolute;
  top: -100px;
  left: 16px;
  background: var(--color-primary);
  color: var(--color-white);
  padding: 8px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 600;
  z-index: 200;
  transition: top 0.2s;
}

.skip-link:focus {
  top: 16px;
  color: var(--color-white);
}

/* ===== Navigation ===== */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  border-bottom: 1px solid transparent;
  transition: all 0.4s var(--ease-out-expo);
}

.nav.scrolled {
  border-bottom-color: rgba(0,0,0,0.04);
  background: rgba(255,255,255,0.88);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  transition: opacity 0.2s;
}

.nav-logo:hover {
  opacity: 0.7;
  color: var(--color-text);
}

.nav-logo img {
  width: 36px;
  height: 36px;
  border-radius: 10px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links li a {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all 0.25s;
  position: relative;
}

.nav-links li a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -4px;
  width: 0;
  height: 2px;
  background: var(--color-text);
  border-radius: 1px;
  transition: width 0.3s var(--ease-out-expo);
}

.nav-links li a:hover {
  color: var(--color-text);
}

.nav-links li a:hover::after {
  width: 100%;
}

.nav-cta {
  padding: 10px 24px !important;
  font-size: 0.875rem !important;
  border-radius: 100px !important;
  background: var(--color-text) !important;
  color: var(--color-white) !important;
  transition: all 0.3s var(--ease-out-expo) !important;
}

.nav-cta::after { display: none !important; }

.nav-cta:hover {
  opacity: 0.85 !important;
  box-shadow: 0 4px 16px rgba(0,0,0,0.12) !important;
}

.nav-mobile-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  cursor: pointer;
  color: var(--color-text);
  padding: 4px;
  transition: transform 0.3s var(--ease-spring);
}

.nav-mobile-toggle:hover {
  opacity: 0.7;
}

/* Mobile menu */
.mobile-menu {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  background: rgba(255,255,255,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border-light);
  padding: 16px 24px 24px;
  z-index: 99;
}

.mobile-menu.open { display: block; }

.mobile-menu a {
  display: block;
  padding: 14px 0;
  color: var(--color-text);
  font-size: 1.0625rem;
  font-weight: 500;
  border-bottom: 1px solid var(--color-border-light);
  transition: padding-left 0.3s var(--ease-out-expo);
}

.mobile-menu a:hover {
  padding-left: 8px;
  color: var(--color-primary);
}

.mobile-menu a:last-child { border-bottom: none; }

/* ===== Hero Section ===== */
.hero {
  padding: 160px 24px 120px;
  background: var(--color-white);
  overflow: hidden;
  position: relative;
}


.hero-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  position: relative;
}

.hero-text {
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-bg-alt);
  border-radius: 100px;
  padding: 8px 18px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-secondary);
  margin-bottom: 28px;
  transition: all 0.3s var(--ease-out-expo);
}

.hero-badge:hover {
  background: var(--color-primary-50);
  color: var(--color-primary);
}

.hero-badge i {
  color: var(--color-primary);
}

.hero h1 {
  margin-bottom: 24px;
  line-height: 1.15;
}

.hero h1 .highlight {
  color: var(--color-primary);
  position: relative;
  display: inline-block;
}

.hero h1 .highlight::after {
  content: '';
  position: absolute;
  left: -4px;
  right: -4px;
  bottom: 4px;
  height: 12px;
  background: rgba(37,99,235,0.1);
  border-radius: 4px;
  z-index: -1;
}

.hero-desc {
  color: var(--color-text-secondary);
  font-size: 1.125rem;
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-visual {
  display: flex;
  justify-content: center;
  position: relative;
}


/* ===== Phone Mockup ===== */
.phone-mockup {
  width: 300px;
  height: 600px;
  background: #1a1a1a;
  border-radius: 44px;
  padding: 12px;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.08) inset,
    0 24px 64px rgba(0,0,0,0.12),
    0 8px 24px rgba(0,0,0,0.06);
  position: relative;
  z-index: 1;
  transition: transform 0.6s var(--ease-out-expo);
}

.phone-mockup:hover {
  transform: translateY(-6px);
}

.phone-screen {
  width: 100%;
  height: 100%;
  background: var(--color-white);
  border-radius: 34px;
  overflow: hidden;
  position: relative;
}

.phone-screenshot {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  border-radius: 34px;
}

/* ===== Screenshot Frame ===== */
.screenshot-frame {
  background: #1a1a1a;
  border-radius: 32px;
  padding: 8px;
  box-shadow:
    0 0 0 1px rgba(255,255,255,0.06) inset,
    var(--shadow-lg);
  max-width: 280px;
  margin: 0 auto;
  overflow: hidden;
  transition: transform 0.5s var(--ease-out-expo);
}

.screenshot-frame:hover {
  transform: translateY(-4px);
}

.screenshot-frame .screenshot-img {
  width: 100%;
  border-radius: 24px;
  display: block;
}

/* Dual screenshot layout */
.screenshot-dual {
  display: flex;
  gap: 16px;
  justify-content: center;
  align-items: flex-start;
}

.screenshot-dual .screenshot-frame.small {
  max-width: 220px;
}

/* ===== App Gallery ===== */
.gallery-scroll {
  margin-top: 56px;
  overflow-x: auto;
  overflow-y: hidden;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  padding-bottom: 8px;
}

.gallery-scroll::-webkit-scrollbar { display: none; }

.gallery-track {
  display: flex;
  gap: 24px;
  justify-content: center;
  padding: 0 24px;
}

.gallery-item {
  flex-shrink: 0;
  text-align: center;
}

.gallery-phone {
  width: 180px;
  background: #1a1a1a;
  border-radius: 28px;
  padding: 6px;
  box-shadow: var(--shadow-md);
  transition: all 0.5s var(--ease-out-expo);
  cursor: pointer;
}

.gallery-phone:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.1);
}

.gallery-phone img {
  width: 100%;
  border-radius: 22px;
  display: block;
}

.gallery-label {
  display: block;
  margin-top: 14px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-text-tertiary);
  transition: color 0.3s;
}

.gallery-item:hover .gallery-label {
  color: var(--color-text);
}

/* ===== Section Spacing ===== */
.section {
  padding: 120px 24px;
  position: relative;
}

.section-alt {
  background: var(--color-bg);
}

/* ===== Problems Section ===== */
.problems-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  margin-top: 56px;
}

.problem-card {
  background: var(--color-white);
  border-radius: var(--radius-xl);
  padding: 40px 32px;
  border: 1px solid var(--color-border-light);
  transition: all 0.4s var(--ease-out-expo);
  cursor: default;
  position: relative;
  overflow: hidden;
  text-align: center;
}

.problem-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.5s var(--ease-out-expo);
}

.problem-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 48px rgba(0,0,0,0.06);
  border-color: transparent;
}

.problem-card:hover::before {
  transform: scaleX(1);
}

.problem-icon {
  width: 64px;
  height: 64px;
  background: var(--color-primary-50);
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  transition: background 0.3s, color 0.3s;
}

.problem-icon i {
  font-size: 1.75rem;
  color: var(--color-primary);
  transition: color 0.3s;
}

.problem-card:hover .problem-icon {
  background: var(--color-primary);
}

.problem-card:hover .problem-icon i {
  color: var(--color-white);
}

.problem-card h4 {
  margin-bottom: 10px;
  font-size: 1.125rem;
}

.problem-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

/* ===== Features Section ===== */
.feature-block {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.feature-block.reverse {
  direction: rtl;
}

.feature-block.reverse > * {
  direction: ltr;
}

.feature-block + .feature-block {
  margin-top: 140px;
}

.feature-text {
  max-width: 480px;
}

.feature-text .section-label { margin-bottom: 12px; }

.feature-text h2 {
  font-size: 2.25rem;
  margin-bottom: 20px;
}

.feature-text p {
  color: var(--color-text-secondary);
  font-size: 1.0625rem;
  line-height: 1.8;
  margin-bottom: 28px;
}

.feature-points {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.feature-points li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  transition: all 0.3s var(--ease-out-expo);
  padding: 4px 0;
}

.feature-points li:hover {
  color: var(--color-text);
  transform: translateX(4px);
}

.feature-points li i {
  color: var(--color-primary);
  font-size: 1.125rem;
  flex-shrink: 0;
}

/* Feature Visual Cards */
.feature-visual {
  background: var(--color-bg);
  border-radius: var(--radius-xl);
  padding: 32px;
  border: 1px solid var(--color-border-light);
  position: relative;
  overflow: hidden;
  transition: all 0.5s var(--ease-out-expo);
}

.feature-visual:hover {
  border-color: transparent;
  box-shadow: 0 24px 64px rgba(0,0,0,0.06);
}

.section-alt .feature-visual {
  background: var(--color-white);
}

/* ===== Steps Section ===== */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
  margin-top: 56px;
}

.step-card {
  text-align: center;
  position: relative;
  padding: 40px 24px;
  border-radius: var(--radius-xl);
  transition: all 0.4s var(--ease-out-expo);
  cursor: default;
}

.step-card:hover {
  background: var(--color-white);
  box-shadow: 0 16px 48px rgba(0,0,0,0.04);
}

.step-number {
  width: 60px;
  height: 60px;
  background: var(--color-text);
  color: var(--color-white);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  font-weight: 700;
  margin: 0 auto 24px;
  transition: all 0.4s var(--ease-spring);
}

.step-card:hover .step-number {
  background: var(--color-primary);
}

.step-card h4 {
  margin-bottom: 10px;
  font-size: 1.125rem;
}

.step-card p {
  color: var(--color-text-secondary);
  font-size: 0.9375rem;
  line-height: 1.7;
}

.step-connector {
  position: absolute;
  right: -20px;
  top: 68px;
  color: var(--color-border);
  font-size: 1.25rem;
}

/* ===== Benefits Section ===== */
.benefits-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 56px;
}

.benefit-card {
  border-radius: var(--radius-xl);
  padding: 44px 40px;
  border: 1px solid transparent;
  transition: all 0.4s var(--ease-out-expo);
  cursor: default;
  position: relative;
  overflow: hidden;
}

.benefit-card:hover {
  transform: translateY(-4px);
}

.benefit-card.owner {
  background: var(--color-bg);
  border-color: var(--color-border-light);
}

.benefit-card.owner:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-100);
  box-shadow: 0 20px 48px rgba(37,99,235,0.06);
}

.benefit-card.resident {
  background: var(--color-bg);
  border-color: var(--color-border-light);
}

.benefit-card.resident:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-100);
  box-shadow: 0 20px 48px rgba(37,99,235,0.06);
}

.benefit-card-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 28px;
}

.benefit-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  color: var(--color-white);
  transition: transform 0.4s var(--ease-spring);
}

.benefit-card:hover .benefit-card-icon {
  transform: scale(1.06);
}

.benefit-card.owner .benefit-card-icon { background: var(--color-primary); }
.benefit-card.resident .benefit-card-icon { background: var(--color-primary-dark); }

.benefit-card h3 { font-size: 1.25rem; }

.benefit-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.benefit-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  transition: transform 0.3s var(--ease-out-expo);
}

.benefit-list li:hover {
  transform: translateX(4px);
}

.benefit-list li i {
  margin-top: 3px;
  font-size: 1rem;
  flex-shrink: 0;
}

.benefit-card.owner .benefit-list li i { color: var(--color-primary); }
.benefit-card.resident .benefit-list li i { color: var(--color-primary-dark); }

/* ===== CTA Section ===== */
.cta {
  padding: 140px 24px;
  background: var(--color-text);
  color: var(--color-white);
  text-align: center;
  position: relative;
  overflow: hidden;
}


.cta h2 {
  color: var(--color-white);
  margin-bottom: 16px;
  font-size: 2.75rem;
}

.cta > .container > p {
  color: rgba(255,255,255,0.6);
  font-size: 1.125rem;
  margin-bottom: 44px;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta .store-badges {
  justify-content: center;
}

.cta .store-badge {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  backdrop-filter: blur(8px);
  border-radius: 14px;
}

.cta .store-badge:hover {
  background: rgba(255,255,255,0.16);
  border-color: rgba(255,255,255,0.24);
  transform: translateY(-3px);
  box-shadow: 0 12px 32px rgba(0,0,0,0.3);
}

.cta-contact {
  margin-top: 32px;
  font-size: 0.875rem;
  color: rgba(255,255,255,0.5);
}

/* ===== Footer ===== */
.footer {
  padding: 40px 24px;
  background: var(--color-text);
  color: rgba(255,255,255,0.4);
  border-top: 1px solid rgba(255,255,255,0.06);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--color-white);
  font-weight: 700;
  font-size: 1.0625rem;
  transition: opacity 0.3s;
}

.footer-logo:hover {
  opacity: 0.7;
}

.footer-logo img {
  width: 28px;
  height: 28px;
  border-radius: 6px;
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
}

.footer-links a {
  color: rgba(255,255,255,0.4);
  font-size: 0.8125rem;
  transition: all 0.3s;
  position: relative;
}

.footer-links a::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: rgba(255,255,255,0.6);
  transition: width 0.3s var(--ease-out-expo);
}

.footer-links a:hover {
  color: rgba(255,255,255,0.85);
}

.footer-links a:hover::after {
  width: 100%;
}

.footer-copy {
  font-size: 0.8125rem;
}

/* ===== Email Form ===== */
.email-form-wrap {
  max-width: 520px;
}

.email-input-group {
  display: flex;
  align-items: center;
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: 100px;
  padding: 6px 6px 6px 20px;
  gap: 12px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.email-input-group:focus-within {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}

.email-input-group > i {
  color: var(--color-text-tertiary);
  font-size: 1.125rem;
  flex-shrink: 0;
}

.email-input-group input {
  flex: 1;
  border: none;
  outline: none;
  background: transparent;
  font-family: var(--font-family);
  font-size: 0.9375rem;
  color: var(--color-text);
  min-width: 0;
}

.email-input-group input::placeholder {
  color: var(--color-text-tertiary);
}

.email-submit-btn {
  padding: 12px 24px !important;
  border-radius: 100px !important;
  font-size: 0.875rem !important;
  white-space: nowrap;
  flex-shrink: 0;
}

.email-submit-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.email-hint {
  margin-top: 12px;
  font-size: 0.8125rem;
  color: var(--color-text-tertiary);
}

.email-form-msg {
  margin-top: 10px;
  font-size: 0.875rem;
  min-height: 1.4em;
  transition: opacity 0.3s;
}

.email-form-msg.success { color: #16a34a; }
.email-form-msg.info { color: var(--color-primary); }
.email-form-msg.error { color: #dc2626; }

.waitlist-count {
  margin-top: 10px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
}

/* CTA section email form overrides */
.cta-email .email-input-group {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.15);
}

.cta-email .email-input-group:focus-within {
  border-color: rgba(255, 255, 255, 0.4);
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.06);
}

.cta-email .email-input-group > i {
  color: rgba(255, 255, 255, 0.4);
}

.cta-email .email-input-group input {
  color: var(--color-white);
}

.cta-email .email-input-group input::placeholder {
  color: rgba(255, 255, 255, 0.35);
}

.cta-email .email-submit-btn {
  background: var(--color-white) !important;
  color: var(--color-text) !important;
}

.cta-email .email-submit-btn:hover {
  background: var(--color-primary-50) !important;
}

.cta-email .email-form-msg.success { color: #86efac; }
.cta-email .email-form-msg.info { color: var(--color-primary-100); }
.cta-email .email-form-msg.error { color: #fca5a5; }

.cta-email .waitlist-count {
  color: rgba(255, 255, 255, 0.6);
}

.cta-email .email-form-wrap {
  margin: 0 auto;
}

.cta .email-form-wrap {
  max-width: 520px;
  margin: 0 auto;
}

/* ===== Scroll Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-out-expo), transform 0.8s var(--ease-out-expo);
}

.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Stagger children */
.fade-up-group > .fade-up:nth-child(2) { transition-delay: 0.08s; }
.fade-up-group > .fade-up:nth-child(3) { transition-delay: 0.16s; }
.fade-up-group > .fade-up:nth-child(4) { transition-delay: 0.24s; }


/* ===== Responsive ===== */
@media (max-width: 1023px) {
  h1 { font-size: 2.75rem; }
  h2 { font-size: 2rem; }
  .section { padding: 80px 24px; }

  .hero { padding: 130px 24px 80px; }
  .hero-inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 56px;
  }
  .hero .btn-group, .hero .store-badges { justify-content: center; }

  .feature-block, .feature-block.reverse {
    grid-template-columns: 1fr;
    gap: 40px;
    direction: ltr;
  }
  .feature-text { max-width: 100%; }
  .feature-block + .feature-block { margin-top: 80px; }

  .problems-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-links { display: none; }
  .nav-mobile-toggle { display: block; }
}

@media (max-width: 767px) {
  h1 { font-size: 2.125rem; }
  h2 { font-size: 1.625rem; }
  .section { padding: 64px 20px; }

  .hero { padding: 110px 20px 64px; }
  .hero h1 { font-size: 2.25rem; }
  .hero-desc { font-size: 1rem; }

  .email-input-group {
    flex-direction: column;
    border-radius: var(--radius-md);
    padding: 14px;
    gap: 10px;
  }

  .email-input-group > i { display: none; }

  .email-input-group input {
    width: 100%;
    text-align: center;
    padding: 4px 0;
  }

  .email-submit-btn {
    width: 100%;
    justify-content: center;
    border-radius: var(--radius-sm) !important;
    padding: 14px 24px !important;
  }

  .email-form-wrap { max-width: 100%; }

  .phone-mockup {
    width: 240px;
    height: 480px;
  }

  .screenshot-frame { max-width: 240px; }
  .screenshot-dual .screenshot-frame.small { max-width: 170px; }
  .screenshot-dual { gap: 10px; }

  .gallery-track {
    justify-content: flex-start;
    padding: 0 20px;
  }

  .gallery-phone { width: 150px; border-radius: 22px; padding: 5px; }
  .gallery-phone img { border-radius: 18px; }

  .problems-grid,
  .steps-grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin-left: auto;
    margin-right: auto;
  }

  .step-connector { display: none; }
  .step-card { padding: 24px 16px; }

  .benefits-grid {
    grid-template-columns: 1fr;
  }

  .benefit-card { padding: 32px 28px; }

  .store-badges {
    flex-direction: column;
    align-items: stretch;
  }

  .store-badge { justify-content: center; }

  .footer-inner {
    flex-direction: column;
    gap: 20px;
    text-align: center;
  }

  .cta { padding: 100px 20px; }
  .cta h2 { font-size: 2rem; }
}