/* ============================================
   Threads Analytics LP — Stylesheet
   ============================================ */

/* ---------- CSS Variables ---------- */
:root {
  --color-primary: #4F46E5;
  --color-primary-dark: #4338CA;
  --color-primary-light: #818CF8;
  --color-primary-bg: #EEF2FF;
  --color-accent: #06B6D4;
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-text: #1E293B;
  --color-text-secondary: #64748B;
  --color-text-light: #94A3B8;
  --color-bg: #FFFFFF;
  --color-bg-gray: #F8FAFC;
  --color-bg-dark: #0F172A;
  --color-border: #E2E8F0;
  --font-sans: 'Inter', 'Noto Sans JP', -apple-system, BlinkMacSystemFont, sans-serif;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -4px rgba(0, 0, 0, 0.04);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.04);
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

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

ul {
  list-style: none;
}

/* ---------- Utilities ---------- */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 8px;
  letter-spacing: -0.02em;
}

.section-subtitle {
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 1.05rem;
  margin-bottom: 48px;
}

.hide-sp {
  display: inline;
}

.hide-pc {
  display: none;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-sans);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  text-decoration: none;
}

.btn--sm {
  font-size: 0.875rem;
  padding: 8px 20px;
}

.btn--lg {
  font-size: 1rem;
  padding: 14px 32px;
}

.btn--primary {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
}

.btn--primary:hover {
  background: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

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

.btn--outline:hover {
  background: var(--color-primary);
  color: #fff;
  transform: translateY(-1px);
}

.btn--white {
  background: #fff;
  color: var(--color-primary);
  border-color: #fff;
}

.btn--white:hover {
  background: var(--color-primary-bg);
  transform: translateY(-1px);
  box-shadow: var(--shadow-lg);
}

.btn--outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.5);
}

.btn--outline-white:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
}

.btn--block {
  width: 100%;
}

/* ========================================
   HEADER
   ======================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  transition: all var(--transition);
}

.header--scrolled {
  box-shadow: var(--shadow-md);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.15rem;
}

.header__logo-icon {
  font-size: 1.4rem;
}

.header__nav-list {
  display: flex;
  gap: 32px;
}

.header__nav-link {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color var(--transition);
  position: relative;
}

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

.header__nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-primary);
  transition: width var(--transition);
}

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

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

.header__hamburger span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all var(--transition);
}

/* ========================================
   HERO
   ======================================== */
.hero {
  padding: 140px 0 80px;
  background: linear-gradient(160deg, #F8FAFC 0%, #EEF2FF 50%, #F0F9FF 100%);
  overflow: hidden;
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero__badge {
  display: inline-block;
  background: var(--color-primary-bg);
  color: var(--color-primary);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.hero__title {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.03em;
  margin-bottom: 20px;
}

.hero__title-accent {
  background: linear-gradient(135deg, var(--color-primary), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__description {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
}

.hero__actions {
  display: flex;
  gap: 16px;
  margin-bottom: 48px;
}

.hero__stats {
  display: flex;
  align-items: center;
  gap: 24px;
}

.hero__stat {
  display: flex;
  flex-direction: column;
}

.hero__stat-number {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-text);
}

.hero__stat-label {
  font-size: 0.8rem;
  color: var(--color-text-light);
}

.hero__stat-divider {
  width: 1px;
  height: 36px;
  background: var(--color-border);
}

/* Mockup */
.hero__mockup {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-xl);
  overflow: hidden;
  border: 1px solid var(--color-border);
}

.mockup-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  background: #F8FAFC;
  border-bottom: 1px solid var(--color-border);
}

.mockup-dots {
  display: flex;
  gap: 6px;
}

.mockup-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.mockup-dots span:nth-child(1) { background: #EF4444; }
.mockup-dots span:nth-child(2) { background: #F59E0B; }
.mockup-dots span:nth-child(3) { background: #10B981; }

.mockup-title {
  font-size: 0.8rem;
  color: var(--color-text-light);
  font-weight: 500;
}

.mockup-body {
  padding: 24px;
}

.mockup-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  margin-bottom: 20px;
}

.mockup-card {
  padding: 14px;
  border-radius: var(--radius-sm);
  color: #fff;
}

.mockup-card--blue { background: linear-gradient(135deg, #3B82F6, #2563EB); }
.mockup-card--green { background: linear-gradient(135deg, #10B981, #059669); }
.mockup-card--purple { background: linear-gradient(135deg, #8B5CF6, #7C3AED); }

.mockup-card__label {
  display: block;
  font-size: 0.7rem;
  opacity: 0.85;
  margin-bottom: 4px;
}

.mockup-card__value {
  display: block;
  font-size: 1.3rem;
  font-weight: 700;
}

.mockup-card__change {
  display: block;
  font-size: 0.7rem;
  margin-top: 2px;
}

.mockup-card__change.positive {
  color: #A7F3D0;
}

.mockup-chart {
  background: #F8FAFC;
  border-radius: var(--radius-sm);
  padding: 16px;
}

.mockup-chart__bars {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 80px;
  margin-bottom: 8px;
}

.mockup-chart__bar {
  flex: 1;
  background: linear-gradient(180deg, var(--color-primary-light), var(--color-primary));
  border-radius: 4px 4px 0 0;
  transition: height 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.mockup-chart__labels {
  display: flex;
  gap: 8px;
}

.mockup-chart__labels span {
  flex: 1;
  text-align: center;
  font-size: 0.7rem;
  color: var(--color-text-light);
}

/* ========================================
   PAIN POINTS
   ======================================== */
.pain-points {
  padding: 80px 0;
  background: var(--color-bg);
}

.pain-points__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-top: 40px;
  margin-bottom: 40px;
}

.pain-point-card {
  text-align: center;
  padding: 32px 20px;
  border-radius: var(--radius-lg);
  background: var(--color-bg-gray);
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

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

.pain-point-card__icon {
  font-size: 2.4rem;
  display: block;
  margin-bottom: 16px;
}

.pain-point-card__text {
  font-size: 0.95rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.pain-points__solution {
  text-align: center;
  font-size: 1.2rem;
  color: var(--color-text);
  margin-top: 8px;
}

.pain-points__solution strong {
  color: var(--color-primary);
}

/* ========================================
   FEATURES
   ======================================== */
.features {
  padding: 80px 0;
  background: var(--color-bg-gray);
}

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

.feature-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--color-border);
  transition: all var(--transition);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary-light);
}

.feature-card__icon-wrap {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary-bg);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
}

.feature-card__icon {
  font-size: 1.5rem;
}

.feature-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   PLANS
   ======================================== */
.plans {
  padding: 80px 0;
  background: var(--color-bg);
}

.plans__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  align-items: start;
}

.plans__grid--two {
  grid-template-columns: repeat(2, 1fr);
  max-width: 800px;
  margin: 0 auto;
  gap: 24px;
}

.plan-card {
  position: relative;
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  transition: all var(--transition);
}

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

.plan-card--popular {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: scale(1.03);
}

.plan-card--popular:hover {
  transform: scale(1.03) translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.plan-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  background: var(--color-primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 4px 20px;
  border-radius: 100px;
}

.plan-card__header {
  text-align: center;
  margin-bottom: 20px;
}

.plan-card__name {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.plan-card__concept {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.plan-card__price {
  text-align: center;
  margin-bottom: 24px;
  padding-bottom: 24px;
  border-bottom: 1px solid var(--color-border);
}

.plan-card__amount {
  display: block;
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

.plan-card__period {
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.plan-card__features {
  margin-bottom: 24px;
}

.plan-card__features li {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  padding: 6px 0;
  padding-left: 22px;
  position: relative;
}

.plan-card__features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.plan-card__features li strong {
  color: var(--color-text);
}

.plan-card__price-note {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 4px;
}

.plan-card__price-notice {
  background: #FFF7ED;
  border: 1px solid #FDBA74;
  border-radius: var(--radius);
  padding: 12px 16px;
  font-size: 0.8rem;
  color: #9A3412;
  line-height: 1.6;
  margin-bottom: 20px;
}

.plan-card__price-notice-icon {
  color: #F97316;
  margin-right: 4px;
}

/* ========================================
   ROADMAP
   ======================================== */
.roadmap {
  padding: 80px 0;
  background: var(--color-bg-gray);
}

.roadmap__timeline {
  max-width: 800px;
  margin: 0 auto 40px;
  position: relative;
}

.roadmap__timeline::before {
  content: '';
  position: absolute;
  left: 24px;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--color-border);
  border-radius: 2px;
}

.roadmap__phase {
  position: relative;
  padding-left: 64px;
  margin-bottom: 32px;
}

.roadmap__phase::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 8px;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  border: 3px solid var(--color-border);
  background: var(--color-bg);
  z-index: 1;
}

.roadmap__phase--current::before {
  border-color: var(--color-success);
  background: var(--color-success);
  box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.2);
}

.roadmap__phase--next::before {
  border-color: var(--color-primary);
  background: var(--color-bg);
}

.roadmap__phase--future::before {
  border-color: var(--color-text-light);
  background: var(--color-bg);
}

.roadmap__phase-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.roadmap__phase-badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.roadmap__phase-badge--current {
  background: var(--color-success);
  color: #fff;
}

.roadmap__phase-badge--next {
  background: var(--color-primary);
  color: #fff;
}

.roadmap__phase-badge--future {
  background: var(--color-text-light);
  color: #fff;
}

.roadmap__phase-price {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--color-text);
}

.roadmap__phase-price--up {
  color: #DC2626;
}

.roadmap__phase-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.roadmap__features-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.roadmap__feature-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 8px 16px;
  font-size: 0.85rem;
  color: var(--color-text-secondary);
}

.roadmap__feature-item--upcoming {
  background: var(--color-bg);
  border-style: dashed;
  color: var(--color-text-light);
}

.roadmap__phase--current .roadmap__feature-item {
  border-color: var(--color-success);
  color: var(--color-text);
}

.roadmap__cta-note {
  text-align: center;
  max-width: 600px;
  margin: 0 auto;
  padding: 32px;
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

.roadmap__cta-note p {
  font-size: 1rem;
  margin-bottom: 20px;
  color: var(--color-text);
}

.roadmap__cta-note-sub {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-top: -12px;
  margin-bottom: 20px;
}

/* ========================================
   SUBSCRIPTION
   ======================================== */
.subscription {
  padding: 80px 0;
  background: var(--color-bg);
}

.subscription__card {
  max-width: 800px;
  margin: 0 auto;
  background: linear-gradient(135deg, #EEF2FF 0%, #F0FDFA 100%);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

.subscription__card-inner {
  display: flex;
  gap: 40px;
  align-items: center;
}

.subscription__info {
  flex: 1;
}

.subscription__title {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--color-text);
}

.subscription__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 16px;
}

.subscription__benefits {
  list-style: none;
  padding: 0;
}

.subscription__benefits li {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  padding: 4px 0 4px 22px;
  position: relative;
}

.subscription__benefits li::before {
  content: '\2713';
  position: absolute;
  left: 0;
  color: var(--color-success);
  font-weight: 700;
}

.subscription__status {
  text-align: center;
  min-width: 200px;
}

.subscription__status-badge {
  display: inline-block;
  background: var(--color-primary);
  color: #fff;
  font-size: 0.8rem;
  font-weight: 700;
  padding: 6px 20px;
  border-radius: 100px;
  margin-bottom: 12px;
}

.subscription__status-text {
  font-size: 0.85rem;
  color: var(--color-text-light);
  margin-bottom: 16px;
  line-height: 1.5;
}

.subscription__note {
  font-size: 0.8rem;
  color: var(--color-text-light);
  margin-top: 16px;
  padding: 12px;
  background: rgba(99, 102, 241, 0.05);
  border-left: 3px solid var(--color-primary);
  border-radius: 4px;
}

/* ========================================
   HOW IT WORKS
   ======================================== */
.how-it-works {
  padding: 80px 0;
  background: var(--color-bg);
}

.steps {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 16px;
  margin-top: 40px;
}

.step {
  flex: 1;
  max-width: 300px;
  text-align: center;
  padding: 32px 24px;
  background: var(--color-bg-gray);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.step__number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  border-radius: 50%;
  margin: 0 auto 16px;
}

.step__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step__desc {
  font-size: 0.9rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

.step__arrow {
  display: flex;
  align-items: center;
  font-size: 1.5rem;
  color: var(--color-primary-light);
  margin-top: 60px;
  font-weight: 700;
}

/* ========================================
   SELLING POINTS
   ======================================== */
.selling-points {
  padding: 80px 0;
  background: var(--color-bg-gray);
}

.selling-points__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 40px;
}

.selling-point {
  text-align: center;
  padding: 32px 20px;
}

.selling-point__icon {
  font-size: 2.4rem;
  display: block;
  margin-bottom: 16px;
}

.selling-point__title {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.selling-point__desc {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
}

/* ========================================
   FAQ
   ======================================== */
.faq {
  padding: 80px 0;
  background: var(--color-bg);
}

.faq__list {
  max-width: 720px;
  margin: 40px auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 20px 0;
  background: none;
  border: none;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  text-align: left;
  gap: 16px;
  transition: color var(--transition);
}

.faq-item__question:hover {
  color: var(--color-primary);
}

.faq-item__icon {
  font-size: 1.3rem;
  font-weight: 400;
  color: var(--color-text-light);
  transition: transform var(--transition);
  flex-shrink: 0;
}

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

.faq-item__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}

.faq-item--open .faq-item__answer {
  max-height: 300px;
  padding-bottom: 20px;
}

.faq-item__answer p {
  font-size: 0.925rem;
  color: var(--color-text-secondary);
  line-height: 1.8;
}

/* ========================================
   CTA
   ======================================== */
.cta {
  padding: 80px 0;
  background: linear-gradient(135deg, var(--color-primary-dark), var(--color-primary), #7C3AED);
  color: #fff;
}

.cta__inner {
  text-align: center;
}

.cta__title {
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}

.cta__desc {
  font-size: 1.05rem;
  opacity: 0.9;
  margin-bottom: 32px;
}

.cta__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
}

/* ========================================
   FOOTER
   ======================================== */
.footer {
  padding: 48px 0;
  background: var(--color-bg-dark);
  color: #94A3B8;
}

.footer__inner {
  text-align: center;
}

.footer__logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: #fff;
  display: block;
  margin-bottom: 4px;
}

.footer__tagline {
  font-size: 0.85rem;
  margin-bottom: 24px;
}

.footer__links {
  display: flex;
  justify-content: center;
  gap: 24px;
  margin-bottom: 24px;
  flex-wrap: wrap;
}

.footer__links a {
  font-size: 0.85rem;
  color: #94A3B8;
  transition: color var(--transition);
}

.footer__links a:hover {
  color: #fff;
}

.footer__copy {
  font-size: 0.8rem;
  color: #475569;
}

/* ========================================
   SCROLL ANIMATIONS
   ======================================== */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ========================================
   RESPONSIVE
   ======================================== */
@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero__title {
    font-size: 2.2rem;
  }

  .plans__grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .plans__grid--two {
    grid-template-columns: repeat(2, 1fr);
    max-width: 700px;
  }

  .plan-card--popular {
    transform: none;
  }

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

  .pain-points__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .features__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .selling-points__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .section-title {
    font-size: 1.6rem;
  }

  .hide-sp {
    display: none;
  }

  .hide-pc {
    display: inline;
  }

  /* Header mobile */
  .header__nav {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow-lg);
    padding: 16px 24px;
  }

  .header__nav.active {
    display: block;
  }

  .header__nav-list {
    flex-direction: column;
    gap: 16px;
  }

  .header__cta {
    display: none;
  }

  .header__hamburger {
    display: flex;
  }

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

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

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

  /* Hero mobile */
  .hero {
    padding: 120px 0 60px;
  }

  .hero__title {
    font-size: 1.8rem;
  }

  .hero__description {
    font-size: 0.95rem;
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__stats {
    flex-wrap: wrap;
    gap: 16px;
  }

  .hero__stat-divider {
    display: none;
  }

  /* Plans mobile */
  .plans__grid,
  .plans__grid--two {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 0 auto;
  }

  /* Roadmap mobile */
  .roadmap__timeline::before {
    left: 16px;
  }

  .roadmap__phase {
    padding-left: 48px;
  }

  .roadmap__phase::before {
    left: 8px;
    width: 16px;
    height: 16px;
  }

  .roadmap__phase-header {
    flex-direction: column;
    align-items: flex-start;
    gap: 4px;
  }

  /* Subscription mobile */
  .subscription__card {
    padding: 24px;
  }

  .subscription__card-inner {
    flex-direction: column;
    text-align: center;
  }

  .subscription__benefits li {
    text-align: left;
  }

  /* Pain points mobile */
  .pain-points__grid {
    grid-template-columns: 1fr;
    max-width: 400px;
    margin: 40px auto;
  }

  /* Features mobile */
  .features__grid {
    grid-template-columns: 1fr;
  }

  /* Steps mobile */
  .steps {
    flex-direction: column;
    align-items: center;
  }

  .step {
    max-width: 100%;
    width: 100%;
  }

  .step__arrow {
    margin-top: 0;
    transform: rotate(90deg);
  }

  /* Selling points mobile */
  .selling-points__grid {
    grid-template-columns: 1fr;
  }

  /* CTA mobile */
  .cta__title {
    font-size: 1.6rem;
  }

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