/* ============================================
   Our Moment Landing Page — styles.css
   Design tokens from lib/config/constants.dart
   ============================================ */

/* --- Custom Properties --- */
:root {
  --color-primary: #FF85A2;
  --color-primary-light: #FFB3C6;
  --color-primary-dark: #E55C7A;
  --color-accent: #FFAFC3;
  --color-gradient-end: #FFB088;

  --color-bg: #FAFAF9;
  --color-surface: #FFFFFF;
  --color-text-primary: #111827;
  --color-text-secondary: #6B7280;
  --color-text-muted: #9CA3AF;
  --color-border: #F3F4F6;
  --color-border-strong: #E5E7EB;

  --color-success: #4CAF50;

  --font-sans: 'Pretendard Variable', 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-8: 32px;
  --space-10: 40px;
  --space-12: 48px;
  --space-16: 64px;
  --space-20: 80px;
  --space-24: 96px;

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-2xl: 24px;
  --radius-full: 9999px;

  --shadow-card: 0 2px 10px rgba(0, 0, 0, 0.06);
  --shadow-romantic: 0 4px 16px rgba(255, 133, 162, 0.25);

  --max-width: 1120px;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--color-text-primary);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

ul {
  list-style: none;
}

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

button {
  font: inherit;
  border: none;
  cursor: pointer;
  background: none;
}

/* --- Skip Link --- */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  padding: var(--space-2) var(--space-4);
  background: var(--color-primary);
  color: white;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-size: 14px;
}

.skip-link:focus {
  top: var(--space-2);
}

/* --- Container --- */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

/* --- Navigation --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 250, 249, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.3s ease;
}

.nav.scrolled {
  border-bottom-color: var(--color-border-strong);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.nav-icon {
  border-radius: var(--radius-sm);
}

.nav-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.3px;
}

.lang-switcher {
  display: flex;
  gap: var(--space-1);
  background: var(--color-border);
  border-radius: var(--radius-full);
  padding: 3px;
}

.lang-btn {
  padding: 6px 12px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-text-muted);
  border-radius: var(--radius-full);
  transition: all 0.2s ease;
}

.lang-btn:hover {
  color: var(--color-text-secondary);
}

.lang-btn.active {
  background: var(--color-surface);
  color: var(--color-text-primary);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

/* --- Hero --- */
.hero {
  padding: var(--space-24) 0 var(--space-16);
  background:
    radial-gradient(ellipse at 50% 0%, rgba(255, 133, 162, 0.06) 0%, transparent 70%),
    var(--color-bg);
}

.hero-content {
  text-align: center;
}

.hero-text {
  max-width: 560px;
  margin: 0 auto;
}

/* --- iPhone 17 Mockup --- */
.hero-mockup {
  display: none;
}

.iphone-frame {
  position: relative;
  width: 280px;
  height: 572px;
  border-radius: 48px;
  border: 6px solid #1E1E1E;
  background: var(--color-bg);
  box-shadow:
    inset 0 0 0 2px #2A2A2A,
    0 20px 60px rgba(0, 0, 0, 0.12),
    0 8px 24px rgba(0, 0, 0, 0.08);
  overflow: hidden;
}

.iphone-notch {
  position: absolute;
  top: 12px;
  left: 50%;
  transform: translateX(-50%);
  width: 90px;
  height: 28px;
  background: #1E1E1E;
  border-radius: 14px;
  z-index: 2;
}

.iphone-screen {
  position: absolute;
  inset: 0;
  border-radius: 42px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(170deg, #FFF5F7 0%, #FAFAF9 40%, #FFF0E8 100%);
}

.iphone-carousel {
  position: relative;
  width: 100%;
  height: 100%;
}

.iphone-carousel img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0;
  transition: opacity 0.8s ease;
}

.iphone-carousel img.active {
  opacity: 1;
}

.iphone-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text-muted);
}

.iphone-placeholder svg {
  opacity: 0.4;
}

.iphone-placeholder span {
  font-size: 13px;
  font-weight: 500;
  opacity: 0.5;
}

.iphone-bar {
  position: absolute;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  width: 100px;
  height: 4px;
  background: #1E1E1E;
  border-radius: 2px;
  z-index: 2;
}

.hero-label {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-primary);
  margin-bottom: var(--space-6);
  letter-spacing: 0.5px;
}

.hero-icon {
  width: 80px;
  height: 80px;
  border-radius: 22px;
  margin: 0 auto var(--space-6);
  animation: pulse 3s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.05); }
}

.hero-title {
  font-size: 40px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.5px;
  line-height: 1.1;
  margin-bottom: var(--space-3);
}

.hero-tagline {
  font-size: 18px;
  font-weight: 400;
  color: var(--color-text-secondary);
  margin-bottom: var(--space-4);
}

.hero-desc {
  font-size: 15px;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: var(--space-10);
}

.hero-buttons {
  display: flex;
  gap: var(--space-3);
  justify-content: center;
  flex-wrap: wrap;
}

.store-badge {
  display: inline-block;
  transition: transform 0.2s ease, opacity 0.2s ease;
  border-radius: 8px;
}

.store-badge:hover {
  transform: translateY(-2px);
  opacity: 0.9;
}

.store-badge svg {
  display: block;
  height: 50px;
  width: auto;
}

/* --- Section Header --- */
.section-header {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-title {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-text-primary);
  letter-spacing: -0.3px;
  line-height: 1.2;
  margin-bottom: var(--space-3);
}

.section-subtitle {
  font-size: 15px;
  color: var(--color-text-secondary);
}

/* --- Features --- */
.features {
  padding: var(--space-20) 0;
}

.features-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-8) var(--space-6);
  transition: border-color 0.3s ease;
}

.feature-card:hover {
  border-color: var(--color-border-strong);
}

.feature-icon-wrap {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: rgba(255, 133, 162, 0.08);
  margin-bottom: var(--space-5);
}

.feature-icon-wrap svg {
  color: var(--color-primary);
}

.feature-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
  letter-spacing: -0.2px;
}

.feature-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- How it Works --- */
.how-it-works {
  padding: var(--space-20) 0;
  background: var(--color-surface);
}

.steps {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-2);
}

.step {
  text-align: center;
  max-width: 280px;
  padding: var(--space-6);
}

.step-number {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-4);
  font-size: 16px;
  font-weight: 700;
  color: var(--color-primary);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background:
    linear-gradient(var(--color-surface), var(--color-surface)) padding-box,
    linear-gradient(135deg, #FF85A2, #FFB088) border-box;
}

.step-connector {
  width: 2px;
  height: 32px;
  border-left: 2px dashed var(--color-border-strong);
}

.step-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.step-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

/* --- Pricing --- */
.pricing {
  padding: var(--space-20) 0;
}

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
  max-width: 900px;
  margin: 0 auto;
}

.pricing-card {
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-lg);
  background: var(--color-surface);
  overflow: hidden;
}

.pricing-card-popular {
  border: 2px solid var(--color-primary);
  box-shadow: var(--shadow-romantic);
}

.pricing-badge {
  width: 100%;
  padding: 6px 0;
  text-align: center;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: white;
  background: linear-gradient(135deg, #FF85A2, #FFB088);
}

.pricing-card-inner {
  padding: var(--space-6);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.pricing-header {
  text-align: center;
  margin-bottom: var(--space-4);
}

.pricing-name {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.pricing-card-popular .pricing-name {
  color: var(--color-primary);
}

.pricing-price {
  display: flex;
  align-items: baseline;
  justify-content: center;
  gap: 2px;
}

.pricing-amount {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-text-primary);
}

.pricing-period {
  font-size: 13px;
  color: var(--color-text-muted);
}

.pricing-divider {
  height: 1px;
  background: var(--color-border);
  margin-bottom: var(--space-4);
}

.pricing-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  flex: 1;
  margin-bottom: var(--space-6);
}

.pricing-feature {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 13px;
  line-height: 1.4;
}

.pricing-feature.included {
  color: var(--color-text-primary);
}

.pricing-feature.included svg {
  color: var(--color-success);
  flex-shrink: 0;
}

.pricing-feature.excluded {
  color: var(--color-text-muted);
}

.pricing-feature.excluded svg {
  color: var(--color-text-muted);
  flex-shrink: 0;
}

.pricing-cta {
  display: block;
  width: 100%;
  padding: 12px;
  text-align: center;
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.pricing-cta-outline {
  color: var(--color-text-secondary);
  background: var(--color-border);
}

.pricing-cta-outline:hover {
  background: var(--color-border-strong);
  color: var(--color-text-primary);
}

.pricing-cta-filled {
  color: white;
  background: var(--color-primary);
}

.pricing-cta-filled:hover {
  background: var(--color-primary-dark);
}

.pricing-notice {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  max-width: 900px;
  margin: var(--space-4) auto 0;
  padding: var(--space-3) var(--space-4);
  background: rgba(255, 133, 162, 0.06);
  border: 1px solid rgba(255, 133, 162, 0.15);
  border-radius: var(--radius-md);
  font-size: 13px;
  color: var(--color-text-secondary);
}

.pricing-notice svg {
  color: var(--color-primary);
  flex-shrink: 0;
}

/* --- Footer --- */
.footer {
  padding: var(--space-12) 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-4);
  text-align: center;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.footer-icon {
  border-radius: 6px;
}

.footer-name {
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text-primary);
}

.footer-links {
  display: flex;
  gap: var(--space-4);
}

.footer-link {
  font-size: 13px;
  color: var(--color-text-secondary);
  transition: color 0.2s ease;
}

.footer-link:hover {
  color: var(--color-text-primary);
}

.footer-copyright {
  font-size: 12px;
  color: var(--color-text-muted);
}

/* --- Scroll Animations --- */
[data-animate] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate].visible {
  opacity: 1;
  transform: translateY(0);
}

/* --- Focus Styles --- */
:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

/* --- Reduced Motion --- */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  [data-animate] {
    opacity: 1;
    transform: none;
  }
}

/* ============================================
   Responsive — Mobile First
   ============================================ */

/* sm: 480px+ */
@media (min-width: 480px) {
  .features-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* md: 768px+ */
@media (min-width: 768px) {
  .hero {
    padding: var(--space-24) 0 var(--space-20);
  }

  .hero-mockup {
    display: flex;
    justify-content: center;
    margin-top: var(--space-12);
  }

  .hero-title {
    font-size: 52px;
  }

  .hero-tagline {
    font-size: 20px;
  }

  .section-title {
    font-size: 34px;
  }

  .steps {
    flex-direction: row;
    justify-content: center;
    align-items: flex-start;
    gap: 0;
  }

  .step-connector {
    width: 64px;
    height: 2px;
    border-left: none;
    border-top: 2px dashed var(--color-border-strong);
    margin-top: 44px;
  }

  .step {
    flex: 0 0 auto;
  }
}

/* lg: 1024px+ */
@media (min-width: 1024px) {
  .nav-inner {
    height: 72px;
  }

  .hero {
    padding: 120px 0 var(--space-24);
  }

  .hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-16);
    text-align: left;
  }

  .hero-text {
    margin: 0;
    flex: 1;
    min-width: 0;
  }

  .hero-icon {
    margin: 0 0 var(--space-6);
  }

  .hero-buttons {
    justify-content: flex-start;
  }

  .hero-mockup {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    margin-top: 0;
  }

  .hero-title {
    font-size: 56px;
  }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-6);
  }

  .feature-card {
    padding: var(--space-10) var(--space-8);
  }

  .footer-inner {
    flex-direction: row;
    justify-content: space-between;
    text-align: left;
  }
}

/* xl: 1280px+ */
@media (min-width: 1280px) {
  .container {
    padding: 0 var(--space-10);
  }
}