/*
Theme Name: Ichi Labs Apple
Theme URI: https://ichi-labs.com
Author: Ichi Labs
Author URI: https://ichi-labs.com
Description: Apple公式サイト風ミニマルデザイン。白・ライトグレーベース、大胆な余白、細めフォント。
Version: 1.0.0
License: Private
Text Domain: ichi-labs-apple
*/

/* ============================================================
   CSS Variables
   ============================================================ */
:root {
  --white:        #FFFFFF;
  --gray-50:      #F5F5F7;
  --gray-100:     #E8E8ED;
  --gray-200:     #D2D2D7;
  --gray-300:     #AEAEB2;
  --gray-400:     #8E8E93;
  --gray-500:     #636366;
  --gray-600:     #48484A;
  --gray-700:     #3A3A3C;
  --gray-800:     #2C2C2E;
  --gray-900:     #1D1D1F;
  --text-primary:   #1D1D1F;
  --text-secondary: #424245;
  --text-muted:     #6E6E73;
  --text-subtle:    #AEAEB2;
  --accent:         #1D1D1F;
  --accent-hover:   #424245;
  --link:           #0066CC;
  --success:        #34C759;
  --error:          #FF3B30;
  --border:         #D2D2D7;
  --border-light:   #E8E8ED;
  --radius:         12px;
  --radius-sm:      8px;
  --radius-lg:      20px;
  --radius-xl:      28px;
  --shadow-sm:      0 2px 8px rgba(0,0,0,0.06);
  --shadow:         0 8px 30px rgba(0,0,0,0.08);
  --shadow-lg:      0 20px 60px rgba(0,0,0,0.10);
  --transition:     0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --font:           'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', sans-serif;
  --max-w:          1100px;
  --max-w-narrow:   720px;
}

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

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

body {
  font-family: var(--font);
  font-weight: 300;
  font-size: 17px;
  line-height: 1.75;
  background-color: var(--white);
  color: var(--text-primary);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul, ol {
  list-style: none;
}

button {
  cursor: pointer;
  font-family: var(--font);
  border: none;
  background: none;
}

/* ============================================================
   Typography
   ============================================================ */
h1, h2, h3, h4 {
  font-weight: 300;
  line-height: 1.1;
  letter-spacing: -0.025em;
  color: var(--text-primary);
}

h1 { font-size: clamp(2.8rem, 6vw, 5rem); }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: clamp(1.3rem, 2.5vw, 1.8rem); }
h4 { font-size: 1.1rem; font-weight: 400; }

p {
  color: var(--text-secondary);
  font-size: 1.0625rem;
  line-height: 1.8;
  font-weight: 300;
}

.eyebrow {
  display: block;
  font-size: 0.8125rem;
  font-weight: 400;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

/* ============================================================
   Layout
   ============================================================ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
}

.container-narrow {
  max-width: var(--max-w-narrow);
  margin: 0 auto;
  padding: 0 32px;
}

.section {
  padding: 120px 32px;
}

.section-alt {
  background-color: var(--gray-50);
}

.section-header {
  text-align: center;
  margin-bottom: 80px;
}

.section-header h2 {
  margin-bottom: 20px;
}

.section-header p {
  max-width: 560px;
  margin: 0 auto;
  font-size: 1.125rem;
  color: var(--text-muted);
}

/* ============================================================
   Buttons
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 400;
  border-radius: 980px;
  transition: var(--transition);
  white-space: nowrap;
  letter-spacing: 0.01em;
}

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

.btn-primary:hover {
  background: var(--accent-hover);
  transform: scale(1.02);
}

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text-primary);
  background: transparent;
}

.btn-outline:hover {
  background: var(--gray-50);
  border-color: var(--gray-400);
}

.btn-link {
  color: var(--link);
  font-weight: 400;
  padding: 0;
  border-radius: 0;
  gap: 4px;
}

.btn-link:hover {
  opacity: 0.8;
}

/* ============================================================
   Navigation
   ============================================================ */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 52px;
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  transition: background var(--transition);
}

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-size: 1.0625rem;
  font-weight: 400;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

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

.nav-links a {
  font-size: 0.8125rem;
  font-weight: 300;
  color: var(--text-primary);
  transition: color var(--transition);
  opacity: 0.85;
}

.nav-links a:hover {
  opacity: 1;
}

.nav-cta {
  color: var(--link) !important;
  opacity: 1 !important;
  font-weight: 400 !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 24px;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  height: 1px;
  background: var(--text-primary);
  border-radius: 1px;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 52px;
    left: 0;
    right: 0;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 24px 32px 32px;
    gap: 24px;
    transform: translateY(-110%);
    opacity: 0;
    transition: transform var(--transition), opacity var(--transition);
    border-bottom: 1px solid var(--border-light);
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
  }

  .nav-links a {
    font-size: 1rem;
  }
}

/* ============================================================
   Hero Section
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 100px 32px 80px;
  background: var(--white);
  position: relative;
}

.hero-content {
  max-width: 820px;
  position: relative;
  z-index: 1;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(3rem, 7vw, 5.5rem);
  font-weight: 200;
  color: var(--text-primary);
  margin-bottom: 28px;
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero h1 em {
  font-style: normal;
  font-weight: 400;
}

.hero-sub {
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 52px;
  line-height: 1.7;
  font-weight: 300;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  animation: scroll-fade 2.5s ease-in-out infinite;
}

.hero-scroll-indicator span {
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-subtle);
}

.hero-scroll-line {
  width: 1px;
  height: 36px;
  background: linear-gradient(to bottom, var(--text-subtle), transparent);
}

/* ============================================================
   Apps Section
   ============================================================ */
.apps-section {
  padding: 120px 32px;
  background: var(--gray-50);
}

.apps-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.app-card {
  background: var(--white);
  border-radius: var(--radius-xl);
  padding: 44px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

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

.app-icon {
  width: 76px;
  height: 76px;
  background: var(--gray-50);
  border-radius: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.2rem;
  flex-shrink: 0;
  overflow: hidden;  ← これを追加
}

.app-icon img {
  border-radius: 18px;
  display: block;
}

.app-card h3 {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--text-primary);
}

.app-card p {
  font-size: 0.9375rem;
  flex: 1;
  color: var(--text-secondary);
}

.app-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 20px;
  border-top: 1px solid var(--border-light);
}

.app-platform-badges {
  display: flex;
  gap: 6px;
}

.platform-badge {
  font-size: 0.6875rem;
  font-weight: 400;
  padding: 3px 10px;
  border: 1px solid var(--border);
  border-radius: 980px;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.app-link {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--link);
  display: flex;
  align-items: center;
  gap: 4px;
  transition: gap var(--transition);
}

.app-link:hover { gap: 8px; }

/* ============================================================
   About Section
   ============================================================ */
.about-section {
  padding: 140px 32px;
  background: var(--white);
}

.about-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 100px;
  align-items: center;
}

.about-text h2 {
  margin-bottom: 28px;
}

.about-text p {
  margin-bottom: 20px;
}

.about-values {
  margin-top: 44px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}

.about-value {
  display: flex;
  gap: 20px;
  align-items: flex-start;
}

.about-value-icon {
  width: 40px;
  height: 40px;
  flex-shrink: 0;
  background: var(--gray-50);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.about-value-text strong {
  display: block;
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.about-value-text span {
  font-size: 0.875rem;
  color: var(--text-muted);
}

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

/* About — Company info list (left column) */
.about-company-info {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--border-light);
}

.company-dl {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.company-dl-row {
  display: grid;
  grid-template-columns: 5em 1fr;
  gap: 12px;
  font-size: 0.875rem;
  line-height: 1.7;
}

.company-dl-row dt {
  color: var(--text-muted);
  font-size: 0.8rem;
  font-weight: 500;
  padding-top: 2px;
}

.company-dl-row dd {
  color: var(--text-secondary);
}

/* About — Company card (right column) */
.about-company-card {
  background: var(--gray-50);
  border-radius: var(--radius-xl);
  padding: 36px;
  width: 100%;
  max-width: 340px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: relative;
}

.about-company-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: calc(var(--radius-xl) + 1px);
  border: 1px solid var(--border-light);
  pointer-events: none;
}

.company-card-top {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.company-card-logo {
  font-size: 1.5rem;
  font-weight: 300;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.company-card-divider {
  height: 1px;
  background: var(--border-light);
}

.company-card-dl {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.company-card-row {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.company-card-row dt {
  font-size: 0.7rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.company-card-row dd {
  font-size: 0.9rem;
  color: var(--text-primary);
  line-height: 1.6;
}

.company-card-footer-line {
  padding-top: 16px;
  border-top: 1px solid var(--border-light);
}

.company-card-tagline {
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

@media (max-width: 768px) {
  .about-inner {
    grid-template-columns: 1fr;
    gap: 64px;
  }

  .about-visual {
    order: -1;
  }

  .about-company-card {
    max-width: 100%;
  }
}

/* ============================================================
   App Detail Page (Noctary)
   ============================================================ */
.page-hero {
  min-height: 70vh;
  display: flex;
  align-items: center;
  text-align: center;
  padding: 140px 32px 100px;
  background: var(--white);
}

.page-hero-inner {
  max-width: 620px;
  margin: 0 auto;
}

.app-icon-large {
  width: 120px;
  height: 120px;
  background: var(--gray-50);
  border-radius: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  margin: 0 auto 36px;
  box-shadow: var(--shadow);
}

.page-hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.6rem);
  margin-bottom: 20px;
}

.page-hero .lead {
  font-size: 1.1875rem;
  color: var(--text-muted);
  margin-bottom: 44px;
  line-height: 1.7;
}

.download-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.store-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 14px 24px;
  background: var(--text-primary);
  color: var(--white);
  border-radius: var(--radius);
  font-weight: 400;
  font-size: 0.875rem;
  transition: var(--transition);
  min-width: 160px;
}

.store-badge:hover {
  background: var(--gray-700);
  transform: scale(1.02);
}

.store-badge-icon {
  font-size: 1.5rem;
  line-height: 1;
}

.store-badge-text {
  display: flex;
  flex-direction: column;
  text-align: left;
}

.store-badge-text small {
  font-size: 0.625rem;
  font-weight: 300;
  opacity: 0.7;
  letter-spacing: 0.04em;
}

/* Features Section */
.features-section {
  padding: 120px 32px;
  background: var(--gray-50);
}

.features-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}

.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.feature-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
}

.feature-icon {
  font-size: 2rem;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 10px;
}

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

/* Screenshots Section */
.screenshots-section {
  padding: 120px 32px;
  background: var(--white);
}

.screenshots-grid {
  max-width: var(--max-w);
  margin: 0 auto;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.screenshot-frame {
  flex-shrink: 0;
  width: 210px;
  height: 400px;
  background: var(--gray-50);
  border-radius: 28px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  color: var(--text-subtle);
  font-size: 0.8rem;
  letter-spacing: 0.04em;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-light);
}

.screenshot-frame-icon {
  font-size: 2.5rem;
  opacity: 0.25;
}

/* ============================================================
   Privacy & Terms Page
   ============================================================ */
.legal-page {
  padding: 140px 32px 100px;
  min-height: 100vh;
}

.legal-inner {
  max-width: 720px;
  margin: 0 auto;
}

.legal-inner h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 8px;
}

.legal-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-bottom: 56px;
  padding-bottom: 28px;
  border-bottom: 1px solid var(--border-light);
}

.legal-body {
  display: flex;
  flex-direction: column;
  gap: 48px;
}

.legal-section h2 {
  font-size: 1.0625rem;
  font-weight: 400;
  color: var(--text-primary);
  margin-bottom: 14px;
}

.legal-section h3 {
  font-size: 0.9375rem;
  font-weight: 400;
  color: var(--text-secondary);
  margin-bottom: 10px;
  margin-top: 24px;
}

.legal-section p {
  font-size: 0.9375rem;
  margin-bottom: 14px;
  color: var(--text-secondary);
}

.legal-section ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.legal-section ul li {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  padding-left: 16px;
  position: relative;
}

.legal-section ul li::before {
  content: '–';
  position: absolute;
  left: 0;
  color: var(--text-subtle);
}

.legal-highlight {
  background: var(--gray-50);
  border-left: 3px solid var(--text-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  padding: 20px 24px;
  margin: 20px 0;
}

.legal-highlight p {
  font-size: 0.9rem;
  margin: 0;
  color: var(--text-secondary);
}

/* ============================================================
   Contact Page
   ============================================================ */
.contact-page {
  padding: 140px 32px 100px;
  min-height: 100vh;
}

.contact-inner {
  max-width: 640px;
  margin: 0 auto;
}

.contact-inner h1 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 20px;
}

.contact-inner > p {
  margin-bottom: 52px;
  font-size: 1rem;
  color: var(--text-muted);
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 400;
  color: var(--text-secondary);
}

.form-group label .required {
  color: var(--text-muted);
  margin-left: 3px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

input[type="text"],
input[type="email"],
textarea,
select {
  width: 100%;
  padding: 14px 18px;
  background: var(--gray-50);
  border: 1px solid var(--border-light);
  border-radius: var(--radius);
  color: var(--text-primary);
  font-family: var(--font);
  font-size: 0.9375rem;
  font-weight: 300;
  line-height: 1.6;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  -webkit-appearance: none;
}

input[type="text"]:focus,
input[type="email"]:focus,
textarea:focus,
select:focus {
  border-color: var(--gray-400);
  background: var(--white);
  box-shadow: 0 0 0 3px rgba(0,0,0,0.06);
}

input::placeholder,
textarea::placeholder {
  color: var(--text-subtle);
}

textarea {
  min-height: 160px;
  resize: vertical;
}

.form-submit {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding-top: 8px;
}

.form-message {
  font-size: 0.875rem;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  display: none;
}

.form-message.success {
  background: rgba(52, 199, 89, 0.08);
  border: 1px solid rgba(52, 199, 89, 0.3);
  color: #1a7d3a;
  display: block;
}

.form-message.error {
  background: rgba(255, 59, 48, 0.06);
  border: 1px solid rgba(255, 59, 48, 0.25);
  color: #c0392b;
  display: block;
}

/* ============================================================
   Footer
   ============================================================ */
.site-footer {
  background: var(--gray-50);
  border-top: 1px solid var(--border-light);
  padding: 64px 32px 40px;
}

.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}

.footer-top {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 80px;
  margin-bottom: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--border-light);
}

.footer-brand .site-logo {
  font-size: 1.0625rem;
  margin-bottom: 12px;
  display: block;
}

.footer-brand p {
  font-size: 0.875rem;
  color: var(--text-muted);
  max-width: 240px;
  line-height: 1.7;
}

.footer-nav-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}

.footer-nav-group h4 {
  font-size: 0.75rem;
  font-weight: 400;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
}

.footer-nav-group ul {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-nav-group a {
  font-size: 0.875rem;
  font-weight: 300;
  color: var(--text-secondary);
  transition: color var(--transition);
}

.footer-nav-group a:hover {
  color: var(--text-primary);
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--text-muted);
  font-weight: 300;
}

.footer-copy a {
  color: var(--link);
  transition: opacity var(--transition);
}

.footer-copy a:hover {
  opacity: 0.7;
}

@media (max-width: 768px) {
  .footer-top {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-nav-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 480px) {
  .footer-nav-grid {
    grid-template-columns: 1fr;
  }
}

/* ============================================================
   Animations
   ============================================================ */
@keyframes scroll-fade {
  0%, 100% { opacity: 1; transform: translateX(-50%) translateY(0); }
  50% { opacity: 0.4; transform: translateX(-50%) translateY(8px); }
}

.fade-in {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s ease, transform 0.8s ease;
}

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

.fade-in-delay-1 { transition-delay: 0.1s; }
.fade-in-delay-2 { transition-delay: 0.2s; }
.fade-in-delay-3 { transition-delay: 0.35s; }
.fade-in-delay-4 { transition-delay: 0.5s; }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 768px) {
  .section {
    padding: 80px 20px;
  }

  .apps-section,
  .features-section,
  .screenshots-section,
  .about-section {
    padding: 80px 20px;
  }

  .hero { padding: 80px 20px 60px; }

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

  .form-row {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 480px) {
  .features-grid {
    grid-template-columns: 1fr;
  }

  .hero-actions {
    flex-direction: column;
    align-items: center;
  }

  .download-buttons {
    flex-direction: column;
    align-items: center;
  }
}