/* ============================================
   モモル LP - スタイルシート
   カラーパレット: アプリのデザインシステムを踏襲
   ============================================ */

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

:root {
  /* Primary (Salmon Pink / Coral) */
  --primary: #FF9A9E;
  --primary-light: #FECFEF;
  --primary-dark: #E8847A;
  --primary-gradient-start: #FF9A9E;
  --primary-gradient-end: #FECFEF;

  /* Secondary */
  --secondary: #FFF5F5;
  --secondary-light: #FFFCF5;
  --secondary-dark: #FFE8E8;

  /* Accent */
  --accent: #E88A9E;
  --accent-mint: #A8D8C8;
  --accent-light: #FFD4D8;

  /* Text (warm brown tones, never pure black) */
  --text-primary: #4A3C3C;
  --text-secondary: #6D5D5D;
  --text-disabled: #9A8A7A;
  --text-on-primary: #FFFFFF;

  /* Background (warm cream/pink, never pure white) */
  --bg: #FFF8F5;
  --bg-white: #FFFFFF;
  --bg-elevated: #FFF0ED;

  /* Status */
  --success: #8BC48F;

  /* Shadows */
  --shadow-soft: 0 4px 20px rgba(255, 154, 158, 0.12);
  --shadow-card: 0 8px 32px rgba(255, 154, 158, 0.10);
  --shadow-hover: 0 12px 40px rgba(255, 154, 158, 0.18);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-xxl: 24px;

  /* Font */
  --font: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Hiragino Sans', 'Hiragino Kaku Gothic ProN', Meiryo, sans-serif;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

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

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

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

/* --- Navbar --- */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 248, 245, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 154, 158, 0.1);
  transition: box-shadow 0.3s ease;
}

.navbar.scrolled {
  box-shadow: 0 2px 20px rgba(255, 154, 158, 0.1);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.nav-logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  gap: 32px;
}

.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  position: relative;
}

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 1px;
  transition: width 0.2s;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  background: var(--primary);
  color: var(--text-on-primary);
  font-size: 14px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.2s;
}

.nav-cta-btn:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.nav-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: all 0.3s;
}

.nav-hamburger.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.nav-hamburger.active span:nth-child(2) {
  opacity: 0;
}

.nav-hamburger.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 16px 24px 24px;
  gap: 16px;
  background: rgba(255, 248, 245, 0.98);
}

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

.mobile-link {
  font-size: 16px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 154, 158, 0.1);
}

.mobile-cta-btn {
  display: block;
  text-align: center;
  padding: 14px;
  background: var(--primary);
  color: var(--text-on-primary);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  margin-top: 8px;
}

/* --- Hero --- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding-top: 64px;
  overflow: hidden;
  background: linear-gradient(180deg, var(--bg) 0%, var(--secondary) 50%, var(--primary-light) 100%);
}

.hero-bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.15;
}

.shape-1 {
  width: 400px;
  height: 400px;
  background: var(--primary);
  top: -100px;
  right: -100px;
  animation: float 8s ease-in-out infinite;
}

.shape-2 {
  width: 300px;
  height: 300px;
  background: var(--accent-mint);
  bottom: 10%;
  left: -80px;
  animation: float 10s ease-in-out infinite reverse;
}

.shape-3 {
  width: 200px;
  height: 200px;
  background: var(--primary-light);
  top: 40%;
  right: 20%;
  animation: float 12s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translate(0, 0); }
  50% { transform: translate(20px, -20px); }
}

.hero-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 24px;
  display: flex;
  align-items: center;
  gap: 40px;
  position: relative;
  z-index: 1;
}

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

.hero-label {
  display: inline-block;
  font-size: 14px;
  font-weight: 600;
  color: var(--primary-dark);
  background: rgba(255, 154, 158, 0.15);
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}

.hero-title {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--text-primary);
  margin-bottom: 20px;
}

.hero-title-accent {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 32px;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  padding: 16px 36px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: var(--text-on-primary);
  font-size: 16px;
  font-weight: 600;
  border-radius: var(--radius-md);
  transition: all 0.3s;
  box-shadow: 0 4px 16px rgba(255, 154, 158, 0.3);
}

.hero-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(255, 154, 158, 0.4);
}

/* Phone Mockups */
.hero-visual {
  flex: 1;
  display: flex;
  justify-content: center;
  min-width: 0;
}

.phone-mockups {
  display: flex;
  align-items: center;
  gap: 16px;
  position: relative;
}

.phone-frame {
  width: 200px;
  background: #1a1a1a;
  border-radius: 28px;
  padding: 8px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
  position: relative;
}

.phone-frame .phone-notch {
  width: 80px;
  height: 20px;
  background: #1a1a1a;
  border-radius: 0 0 12px 12px;
  margin: 0 auto;
  position: relative;
  z-index: 2;
}

.phone-screen {
  background: var(--bg);
  border-radius: 20px;
  overflow: hidden;
  min-height: 380px;
}

.phone-mama {
  transform: translateY(-20px);
}

.phone-papa {
  transform: translateY(20px);
}

.phone-label {
  text-align: center;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-top: 12px;
}

/* Mock screens */
.mock-header {
  padding: 6px 16px;
  display: flex;
  justify-content: center;
}

.mock-time {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-primary);
}

.mock-chat-screen {
  padding: 8px 12px;
}

.mock-chat-title {
  font-size: 16px;
  font-weight: 700;
  color: var(--text-primary);
  text-align: center;
  margin-bottom: 2px;
}

.mock-chat-subtitle {
  font-size: 10px;
  color: var(--text-disabled);
  text-align: center;
  margin-bottom: 12px;
}

.mock-messages {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mock-msg {
  max-width: 85%;
}

.mock-msg-user {
  align-self: flex-end;
  background: var(--primary);
  color: white;
  padding: 8px 12px;
  border-radius: 14px 14px 4px 14px;
  font-size: 10px;
  line-height: 1.5;
}

.mock-msg-ai {
  display: flex;
  gap: 6px;
  align-items: flex-start;
}

.mock-avatar {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  flex-shrink: 0;
}

.mock-msg-bubble {
  background: var(--bg-white);
  padding: 8px 12px;
  border-radius: 14px 14px 14px 4px;
  font-size: 10px;
  line-height: 1.5;
  color: var(--text-primary);
  box-shadow: 0 1px 4px rgba(0,0,0,0.05);
}

.mock-share-screen {
  padding: 8px 12px;
}

.mock-share-card {
  background: var(--bg-white);
  border-radius: 12px;
  padding: 12px;
  margin-top: 12px;
  box-shadow: 0 2px 8px rgba(255, 154, 158, 0.1);
}

.mock-share-date {
  font-size: 11px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 6px;
}

.mock-share-body {
  font-size: 10px;
  line-height: 1.6;
  color: var(--text-primary);
  margin-bottom: 10px;
}

.mock-stamps {
  display: flex;
  gap: 6px;
}

.mock-stamp {
  display: flex;
  align-items: center;
  gap: 3px;
  padding: 4px 8px;
  border-radius: 12px;
  background: var(--secondary);
  font-size: 9px;
  color: var(--text-secondary);
}

.mock-stamp-active {
  background: rgba(255, 107, 107, 0.1);
  color: #FF6B6B;
}

.mock-stamp-icon {
  font-size: 11px;
}

.mock-stamp-label {
  font-weight: 500;
}

/* Hero Momoru */
.hero-momoru {
  position: relative;
  z-index: 2;
  flex-shrink: 0;
}

.hero-momoru-img {
  width: 120px;
  height: 120px;
  animation: bounce 3s ease-in-out infinite;
}

@keyframes bounce {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* Scroll hint */
.hero-scroll-hint {
  position: absolute;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-disabled);
  font-size: 12px;
  letter-spacing: 2px;
  animation: fadeInUp 1s ease 1s both;
}

.scroll-arrow {
  width: 2px;
  height: 24px;
  background: linear-gradient(to bottom, var(--text-disabled), transparent);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { opacity: 1; transform: scaleY(1); }
  50% { opacity: 0.4; transform: scaleY(0.6); }
}

/* --- Section Common --- */
.section-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 80px 24px;
}

.section-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 48px;
}

.section-title-center {
  text-align: center;
}

/* --- About --- */
.about {
  background: var(--bg-white);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}

.about-visual {
  display: flex;
  justify-content: center;
}

.about-expressions {
  position: relative;
  width: 300px;
  height: 300px;
}

.expr-img {
  position: absolute;
  border-radius: 50%;
}

.expr-main {
  width: 180px;
  height: 180px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  animation: bounce 4s ease-in-out infinite;
}

.expr-sub {
  width: 90px;
  height: 90px;
  opacity: 0.9;
}

.expr-1 {
  top: 0;
  right: 10px;
  animation: floatSub 5s ease-in-out infinite;
}

.expr-2 {
  bottom: 10px;
  left: 0;
  animation: floatSub 6s ease-in-out infinite reverse;
}

.expr-3 {
  bottom: 20px;
  right: 0;
  animation: floatSub 7s ease-in-out infinite;
}

@keyframes floatSub {
  0%, 100% { transform: translate(0, 0) scale(1); }
  50% { transform: translate(5px, -8px) scale(1.05); }
}

.about-text {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.about-text-accent {
  color: var(--text-primary);
  font-weight: 500;
  padding: 16px 20px;
  background: linear-gradient(135deg, rgba(255, 154, 158, 0.08) 0%, rgba(254, 207, 239, 0.08) 100%);
  border-radius: var(--radius-md);
  border-left: 3px solid var(--primary);
}

/* --- Features --- */
.features {
  background: var(--bg);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.feature-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 36px 28px;
  box-shadow: var(--shadow-card);
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(30px);
}

.feature-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.feature-icon {
  width: 72px;
  height: 72px;
  background: linear-gradient(135deg, var(--secondary) 0%, var(--primary-light) 100%);
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.feature-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.feature-desc {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* --- How It Works --- */
.how-it-works {
  background: var(--bg-white);
}

.flow-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.flow-column {
  background: var(--bg);
  border-radius: var(--radius-xxl);
  padding: 32px;
}

.flow-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 2px solid;
}

.flow-header-mama {
  border-color: var(--primary-light);
}

.flow-header-papa {
  border-color: var(--accent-mint);
}

.flow-role-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.flow-role-img {
  width: 44px;
  height: 44px;
}

.flow-role-title {
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
}

.flow-steps {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.flow-step {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  opacity: 0;
  transform: translateX(-20px);
}

.flow-step.visible {
  opacity: 1;
  transform: translateX(0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.flow-step-num {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  flex-shrink: 0;
}

.papa-num {
  background: linear-gradient(135deg, var(--accent-mint) 0%, #7BC4B0 100%);
}

.flow-step-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

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

/* --- Testimonials --- */
.testimonials {
  background: var(--bg);
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonial-card {
  background: var(--bg-white);
  border-radius: var(--radius-xl);
  padding: 32px 24px;
  box-shadow: var(--shadow-card);
  position: relative;
  opacity: 0;
  transform: translateY(20px);
}

.testimonial-card.visible {
  opacity: 1;
  transform: translateY(0);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.testimonial-quote {
  font-size: 48px;
  font-weight: 700;
  color: var(--primary-light);
  line-height: 1;
  margin-bottom: 8px;
}

.testimonial-text {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}

.testimonial-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
}

.mama-avatar {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
}

.papa-avatar {
  background: linear-gradient(135deg, var(--accent-mint) 0%, #7BC4B0 100%);
}

.testimonial-name {
  font-size: 14px;
  font-weight: 600;
  color: var(--text-primary);
}

.testimonials-note {
  text-align: center;
  font-size: 13px;
  color: var(--text-disabled);
  margin-top: 24px;
}

/* --- FAQ --- */
.faq {
  background: var(--bg-white);
}

.faq-list {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.faq-item {
  background: var(--bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: box-shadow 0.3s;
}

.faq-item:hover {
  box-shadow: var(--shadow-soft);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font);
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  gap: 16px;
}

.faq-toggle {
  font-size: 24px;
  font-weight: 300;
  color: var(--primary);
  transition: transform 0.3s;
  flex-shrink: 0;
}

.faq-item.open .faq-toggle {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease, padding 0.3s ease;
}

.faq-item.open .faq-answer {
  max-height: 300px;
}

.faq-answer p {
  padding: 0 24px 20px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-secondary);
}

/* --- CTA --- */
.cta {
  position: relative;
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 50%, var(--primary-dark) 100%);
  overflow: hidden;
}

.cta-bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.cta-shape {
  position: absolute;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
}

.cta-shape-1 {
  width: 400px;
  height: 400px;
  top: -150px;
  right: -100px;
}

.cta-shape-2 {
  width: 300px;
  height: 300px;
  bottom: -100px;
  left: -80px;
}

.cta-inner {
  text-align: center;
  position: relative;
  z-index: 1;
}

.cta-momoru {
  width: 140px;
  height: 140px;
  margin: 0 auto 24px;
  animation: bounce 3s ease-in-out infinite;
  filter: drop-shadow(0 8px 24px rgba(0, 0, 0, 0.1));
}

.cta-title {
  font-size: 32px;
  font-weight: 700;
  color: var(--text-on-primary);
  margin-bottom: 12px;
  line-height: 1.4;
}

.cta-subtitle {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 24px;
}

.cta-details {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.cta-badge {
  display: inline-block;
  padding: 6px 16px;
  background: rgba(255, 255, 255, 0.2);
  color: white;
  font-size: 14px;
  font-weight: 500;
  border-radius: 20px;
  backdrop-filter: blur(4px);
}

.cta-form-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.cta-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 18px 48px;
  background: var(--bg-white);
  color: var(--primary-dark);
  font-size: 18px;
  font-weight: 700;
  border-radius: var(--radius-md);
  transition: all 0.3s;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
}

.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15);
}

.cta-form-note {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.7);
}

/* --- Footer --- */
.footer {
  background: var(--text-primary);
  color: rgba(255, 255, 255, 0.7);
}

.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 48px 24px 32px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  margin-bottom: 32px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
}

.footer-brand-name {
  font-size: 18px;
  font-weight: 700;
  color: white;
}

.footer-brand-desc {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.6);
  transition: color 0.2s;
}

.footer-links a:hover {
  color: white;
}

.footer-bottom {
  text-align: center;
}

.footer-bottom p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
}

/* --- Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-content {
  animation: fadeInUp 0.8s ease both;
}

.hero-visual {
  animation: fadeInUp 0.8s ease 0.2s both;
}

/* --- Responsive --- */
@media (max-width: 1023px) {
  .hero-inner {
    flex-direction: column;
    text-align: center;
    padding-top: 60px;
  }

  .hero-title {
    font-size: 32px;
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .phone-frame {
    width: 170px;
  }

  .phone-screen {
    min-height: 320px;
  }

  .hero-momoru-img {
    width: 90px;
    height: 90px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .about-visual {
    order: -1;
  }

  .about-expressions {
    width: 240px;
    height: 240px;
  }

  .expr-main {
    width: 140px;
    height: 140px;
  }

  .expr-sub {
    width: 70px;
    height: 70px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .flow-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .testimonials-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .section-title {
    font-size: 26px;
  }
}

@media (max-width: 767px) {
  .nav-links {
    display: none;
  }

  .nav-cta-btn {
    display: none;
  }

  .nav-hamburger {
    display: flex;
  }

  .hero {
    min-height: auto;
    padding-top: 80px;
    padding-bottom: 60px;
  }

  .hero-title {
    font-size: 26px;
  }

  .hero-label {
    font-size: 12px;
  }

  .hero-subtitle {
    font-size: 14px;
    line-height: 1.7;
  }

  .hide-sp {
    display: none;
  }

  .phone-mockups {
    gap: 8px;
    transform: scale(0.85);
  }

  .phone-frame {
    width: 150px;
  }

  .phone-screen {
    min-height: 280px;
  }

  .hero-momoru-img {
    width: 70px;
    height: 70px;
  }

  .hero-scroll-hint {
    display: none;
  }

  .section-inner {
    padding: 56px 20px;
  }

  .section-title {
    font-size: 24px;
    margin-bottom: 32px;
  }

  .feature-card {
    padding: 28px 20px;
  }

  .flow-column {
    padding: 24px 20px;
  }

  .cta-title {
    font-size: 24px;
  }

  .cta-btn {
    padding: 16px 36px;
    font-size: 16px;
  }

  .footer-top {
    flex-direction: column;
    gap: 24px;
  }

  .footer-links {
    gap: 16px;
  }
}

/* --- Utility --- */
.transition-all {
  transition: all 0.3s ease;
}

/* --- Smooth transitions for animated elements --- */
[data-animate] {
  transition: opacity 0.6s ease, transform 0.6s ease;
}

/* --- Mobile landscape fix --- */
@media (max-height: 500px) and (orientation: landscape) {
  .hero {
    min-height: auto;
    padding: 80px 0 40px;
  }
  .phone-mockups {
    transform: scale(0.7);
  }
}