/* ==============================
   LOG OITA - 広告掲載ご案内 LP
   Charcoal Dark Theme
   ============================== */

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

:root {
  /* Colors — Grayish-Black (Charcoal) Base */
  --bg-primary: #18181e;
  --bg-secondary: #1e1e26;
  --bg-card: #24242e;
  --bg-card-hover: #2a2a36;

  --text-primary: #eae8ed;
  --text-secondary: #a8a4b0;
  --text-muted: #6d6878;

  /* Accent — muted plum from logo */
  --accent-1: #9b7fb0;
  --accent-2: #b89ccb;
  --accent-3: #d4bde3;
  --gradient-main: linear-gradient(135deg, #8b6fa0, #b89ccb, #d4bde3);

  /* Accent Pop — warm coral for CTAs */
  --accent-pop: #e8654a;
  --gradient-pop: linear-gradient(135deg, #e8654a, #f28c6a);

  --border-color: rgba(255, 255, 255, 0.06);
  --border-accent: rgba(155, 127, 176, 0.25);

  /* Glass */
  --glass-bg: rgba(24, 24, 30, 0.88);
  --glass-border: rgba(255, 255, 255, 0.06);
  --glass-blur: 20px;

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Shadows */
  --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 8px 30px rgba(0, 0, 0, 0.3);
  --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 40px rgba(155, 127, 176, 0.1);

  /* Transitions */
  --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

  /* Typography */
  --font-sans: 'Noto Sans JP', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-inter: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}

body.menu-open {
  overflow: hidden;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ── Typography ── */
h1,
h2,
h3,
h4 {
  font-weight: 800;
  line-height: 1.3;
}

.gradient-text {
  color: #fff;
}

.pc-only {
  display: inline;
}

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition-base);
  border-radius: var(--radius-md);
  white-space: nowrap;
}

.btn-primary {
  background: var(--gradient-pop);
  color: #fff;
  box-shadow: 0 4px 20px rgba(232, 101, 74, 0.35);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(232, 101, 74, 0.5);
}

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

.btn-outline:hover {
  background: rgba(155, 127, 176, 0.1);
  border-color: var(--accent-1);
  transform: translateY(-2px);
}

.btn-sm {
  padding: 10px 22px;
  font-size: 0.85rem;
}

.btn-lg {
  padding: 16px 36px;
  font-size: 1rem;
}

.btn-block {
  width: 100%;
}

/* ── Header ── */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  transition: var(--transition-base);
  padding: 20px 0;
}

.header.scrolled {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  -webkit-backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--glass-border);
  padding: 12px 0;
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  text-decoration: none;
  display: flex;
  align-items: center;
}

.logo-img {
  height: 56px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
}

.nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

.nav-link {
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
  position: relative;
}

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

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

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

.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 1001;
}

.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  transition: var(--transition-base);
  border-radius: 1px;
}

.mobile-menu-btn.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn.active span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ── Hero ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero-bg-gradient {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 40%, rgba(155, 127, 176, 0.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 60%, rgba(232, 101, 74, 0.08) 0%, transparent 50%),
    linear-gradient(180deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
}

.hero-particles {
  position: absolute;
  inset: 0;
  overflow: hidden;
}

.hero-particle {
  position: absolute;
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: rgba(155, 127, 176, 0.3);
  animation: floatParticle linear infinite;
}

@keyframes floatParticle {
  0% {
    transform: translateY(100vh) scale(0);
    opacity: 0;
  }

  10% {
    opacity: 1;
  }

  90% {
    opacity: 1;
  }

  100% {
    transform: translateY(-10vh) scale(1);
    opacity: 0;
  }
}

.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 140px;
  padding-bottom: 80px;
}

.hero-badge {
  display: inline-block;
  padding: 8px 20px;
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent-pop);
  border: 1px solid rgba(232, 101, 74, 0.3);
  border-radius: 50px;
  background: rgba(232, 101, 74, 0.08);
  margin-bottom: 28px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 24px;
  letter-spacing: -1px;
  color: var(--text-primary);
}

.hero-subtitle {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: var(--text-secondary);
  max-width: 640px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-subtitle strong {
  color: var(--accent-pop);
  font-weight: 700;
}

.hero-cta {
  display: flex;
  gap: 16px;
  margin-bottom: 60px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 40px;
  padding: 28px 36px;
  background: rgba(36, 36, 46, 0.8);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  max-width: fit-content;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}

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

.hero-stat-number {
  font-family: var(--font-inter);
  font-size: 2.2rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}

.hero-stat-unit {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-left: 2px;
}

.hero-stat-label {
  display: block;
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 6px;
}

.hero-stat-divider {
  width: 1px;
  height: 40px;
  background: var(--border-color);
}

.hero-scroll-indicator {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  z-index: 1;
}

.hero-scroll-indicator span {
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--text-muted);
}

.scroll-line {
  width: 1px;
  height: 40px;
  background: var(--border-color);
  position: relative;
  overflow: hidden;
}

.scroll-line::after {
  content: '';
  position: absolute;
  top: -100%;
  left: 0;
  width: 100%;
  height: 100%;
  background: var(--accent-pop);
  animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
  0% {
    top: -100%;
  }

  50% {
    top: 100%;
  }

  100% {
    top: 100%;
  }
}

/* ── Animations ── */
.animate-fade-up {
  opacity: 0;
  transform: translateY(30px);
  animation: fadeUp 0.8s ease forwards;
}

.delay-1 {
  animation-delay: 0.2s;
}

.delay-2 {
  animation-delay: 0.4s;
}

.delay-3 {
  animation-delay: 0.6s;
}

.delay-4 {
  animation-delay: 0.8s;
}

@keyframes fadeUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Reveal ── */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

.reveal.delay-1 {
  transition-delay: 0.15s;
}

.reveal.delay-2 {
  transition-delay: 0.3s;
}

.reveal.delay-3 {
  transition-delay: 0.45s;
}

/* ── Sections ── */
.section {
  padding: 100px 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: 64px;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-inter);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  color: var(--accent-pop);
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  margin-bottom: 16px;
  color: var(--text-primary);
}

.section-subtitle {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

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

.about-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 24px;
  align-items: start;
}

.about-card-large {
  padding: 44px 40px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  height: 100%;
}

.about-card-large:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg);
}

.about-card-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(232, 101, 74, 0.1);
  color: var(--accent-pop);
  margin-bottom: 24px;
}

.about-card-large h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.about-card-large p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 24px;
}

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.tag {
  padding: 6px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  transition: var(--transition-fast);
}

.tag:hover {
  background: rgba(155, 127, 176, 0.1);
  border-color: var(--border-accent);
  color: var(--text-primary);
}

.about-side {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.about-card-small {
  padding: 28px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
}

.about-card-small:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.about-card-icon-sm {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  margin-bottom: 16px;
}

.about-card-small h4 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.about-card-small p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── Audience ── */
.audience-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 32px;
  align-items: start;
}

.audience-stats {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.audience-stat-card {
  text-align: center;
  padding: 36px 28px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.audience-stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 3px;
  background: var(--gradient-pop);
  opacity: 0;
  transition: var(--transition-base);
}

.audience-stat-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  box-shadow: var(--shadow-lg);
}

.audience-stat-card:hover::before {
  opacity: 1;
  width: 100%;
}

.audience-stat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  margin: 0 auto 16px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
}

.audience-stat-number {
  font-family: var(--font-inter);
  font-size: 2.8rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}

.audience-stat-unit {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-secondary);
  margin-top: 4px;
  display: block;
}

.audience-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
}

.audience-demographics {
  padding: 40px 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.demographics-title {
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 4px;
  color: var(--text-primary);
}

.demographics-subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 28px;
}

.demographics-chart {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 28px;
}

.demo-bar-row {
  display: flex;
  align-items: center;
  gap: 16px;
}

.demo-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-secondary);
  min-width: 80px;
  text-align: right;
}

.demo-bar-wrap {
  flex: 1;
  height: 32px;
  background: rgba(255, 255, 255, 0.04);
  border-radius: var(--radius-sm);
  overflow: hidden;
  position: relative;
}

.demo-bar {
  height: 100%;
  border-radius: var(--radius-sm);
  background: var(--bar-color);
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 12px;
  width: 0;
  transition: width 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.demo-bar.animated {
  width: calc(var(--target-width) * 1%);
}

.demo-bar-value {
  font-family: var(--font-inter);
  font-size: 0.75rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}

.demographics-highlight {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 20px;
  background: rgba(232, 101, 74, 0.06);
  border: 1px solid rgba(232, 101, 74, 0.15);
  border-radius: var(--radius-md);
}

.highlight-badge {
  display: inline-block;
  padding: 4px 10px;
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: #fff;
  background: var(--gradient-pop);
  border-radius: 4px;
  flex-shrink: 0;
  margin-top: 2px;
}

.demographics-highlight p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.demographics-highlight strong {
  color: var(--accent-pop);
}

/* ── YouTube ── */
.youtube {
  background: var(--bg-secondary);
}

.youtube-content {
  display: flex;
  flex-direction: column;
  gap: 32px;
}

.youtube-info {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: 32px;
  align-items: center;
}

.youtube-embed {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
}

.youtube-placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  color: var(--text-muted);
  background: linear-gradient(135deg, rgba(232, 101, 74, 0.06), rgba(155, 127, 176, 0.06));
  text-decoration: none;
  transition: var(--transition-fast);
}

.youtube-placeholder:hover {
  color: var(--accent-pop);
  background: linear-gradient(135deg, rgba(232, 101, 74, 0.12), rgba(155, 127, 176, 0.12));
}

.youtube-placeholder svg {
  opacity: 0.6;
}

.youtube-placeholder span {
  font-size: 0.9rem;
  font-weight: 600;
}

.youtube-desc h3 {
  font-size: 1.4rem;
  font-weight: 800;
  margin-bottom: 16px;
  color: var(--text-primary);
}

.youtube-desc p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

.youtube-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.yt-stat-card {
  text-align: center;
  padding: 32px 24px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
}

.yt-stat-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.yt-stat-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  margin: 0 auto 14px;
  border-radius: var(--radius-md);
  background: rgba(232, 101, 74, 0.1);
  color: var(--accent-pop);
}

.yt-stat-number {
  font-family: var(--font-inter);
  font-size: 2.4rem;
  font-weight: 900;
  color: #fff;
  line-height: 1;
}

.yt-stat-unit {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary);
  display: block;
  margin-top: 4px;
}

.yt-stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 8px;
}

/* ── Plans ── */
.plan-section-label {
  text-align: center;
  margin-bottom: 24px;
}

.plan-section-badge {
  display: inline-block;
  padding: 8px 28px;
  font-size: 0.9rem;
  font-weight: 800;
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  border-radius: 50px;
  letter-spacing: 1px;
}

.plan-section-badge.special {
  color: #fff;
  background: rgba(232, 101, 74, 0.12);
  border-color: rgba(232, 101, 74, 0.3);
}

.plan-section-label.special {
  margin-top: 60px;
}

.plans-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 16px;
}

.plans-grid.single {
  grid-template-columns: 1fr;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}

.plan-card {
  padding: 40px 32px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
  transition: var(--transition-base);
  position: relative;
  display: flex;
  flex-direction: column;
}

.plan-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.plan-card.special {
  border-color: var(--accent-pop);
  background: linear-gradient(145deg, rgba(232, 101, 74, 0.06), var(--bg-card));
  box-shadow: 0 8px 30px rgba(232, 101, 74, 0.12);
}

.plan-card.special:hover {
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(232, 101, 74, 0.2);
}

.plan-special-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  padding: 6px 24px;
  font-size: 0.75rem;
  font-weight: 800;
  color: #fff;
  background: var(--gradient-pop);
  border-radius: 50px;
  white-space: nowrap;
}

.plan-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.plan-icon.special-icon {
  background: rgba(232, 101, 74, 0.1);
  color: var(--accent-pop);
}

.plan-name {
  font-size: 1.3rem;
  font-weight: 800;
  margin-bottom: 8px;
  color: var(--text-primary);
}

.plan-target-badge {
  display: inline-block;
  padding: 4px 12px;
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--accent-pop);
  background: rgba(232, 101, 74, 0.08);
  border: 1px solid rgba(232, 101, 74, 0.2);
  border-radius: 50px;
  margin-bottom: 12px;
}

.plan-desc {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
  line-height: 1.7;
}

.plan-price {
  margin-bottom: 24px;
  padding: 16px 0;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.plan-price.special-price {
  text-align: center;
}

.plan-original-price {
  margin-bottom: 8px;
}

.strikethrough {
  font-size: 1rem;
  color: var(--text-muted);
  text-decoration: line-through;
}

.arrow-down {
  color: var(--accent-pop);
  font-weight: 700;
  margin-left: 8px;
}

.plan-yen {
  font-family: var(--font-inter);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text-primary);
}

.plan-amount {
  font-family: var(--font-inter);
  font-size: 2.6rem;
  font-weight: 900;
  color: #fff;
  letter-spacing: -1px;
}

.plan-tax {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-left: 4px;
}

.plan-features {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
  flex: 1;
}

.plan-features li {
  font-size: 0.85rem;
  color: var(--text-secondary);
  padding-left: 24px;
  position: relative;
  line-height: 1.6;
}

.plan-features li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-pop);
}

.plan-features li strong {
  color: var(--accent-pop);
  font-weight: 700;
}

.plans-note {
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 20px;
}

/* ── Flow ── */
.flow-timeline {
  max-width: 700px;
  margin: 0 auto;
  position: relative;
}

.flow-timeline::before {
  content: '';
  position: absolute;
  left: 32px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, rgba(255, 255, 255, 0.15), var(--bg-card));
  opacity: 0.3;
}

.flow-step {
  display: flex;
  gap: 32px;
  align-items: flex-start;
  margin-bottom: 40px;
  position: relative;
}

.flow-step:last-child {
  margin-bottom: 0;
}

.flow-step-number {
  flex-shrink: 0;
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-inter);
  font-size: 1.1rem;
  font-weight: 900;
  color: #fff;
  background: var(--gradient-pop);
  border: none;
  border-radius: 50%;
  position: relative;
  z-index: 1;
  box-shadow: 0 4px 16px rgba(232, 101, 74, 0.3);
}

.flow-step-content h3 {
  font-size: 1.1rem;
  font-weight: 800;
  margin-bottom: 8px;
  margin-top: 4px;
  color: var(--text-primary);
}

.flow-step-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ── CTA Banner ── */
.cta-banner {
  background: var(--bg-secondary);
}

.cta-banner-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  padding: 60px 56px;
  background: linear-gradient(135deg, rgba(232, 101, 74, 0.08), rgba(155, 127, 176, 0.06));
  border: 1px solid rgba(232, 101, 74, 0.15);
  border-radius: var(--radius-xl);
}

.cta-title {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  margin-bottom: 8px;
}

.cta-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

/* ── FAQ ── */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
}

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

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

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 24px 0;
  background: none;
  border: none;
  cursor: pointer;
  text-align: left;
  font-family: var(--font-sans);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  transition: var(--transition-fast);
}

.faq-question:hover {
  color: var(--accent-pop);
}

.faq-chevron {
  flex-shrink: 0;
  color: var(--text-muted);
  transition: var(--transition-base);
}

.faq-item.open .faq-chevron {
  transform: rotate(180deg);
  color: var(--accent-pop);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-base);
}

.faq-answer p {
  padding-bottom: 24px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* ── Contact ── */
.contact-form {
  max-width: 720px;
  margin: 0 auto;
  padding: 48px 44px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-lg);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
  margin-bottom: 20px;
}

.form-group {
  margin-bottom: 20px;
}

.form-row .form-group {
  margin-bottom: 0;
}

.form-group label {
  display: block;
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}

.required {
  color: var(--accent-pop);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 14px 18px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text-primary);
  background: var(--bg-primary);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  transition: var(--transition-fast);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-pop);
  box-shadow: 0 0 0 3px rgba(232, 101, 74, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 140px;
}

.form-group select {
  cursor: pointer;
  -webkit-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%236d6878' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.form-submit {
  margin-top: 12px;
}

.form-submit .btn {
  font-size: 1rem;
  padding: 18px 36px;
}

.form-submit .btn.submitted {
  background: linear-gradient(135deg, #34d399, #10b981);
  box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}

/* ── Footer ── */
.footer {
  padding: 60px 0 0;
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-color);
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.2fr 2fr;
  gap: 60px;
  padding-bottom: 48px;
}

.footer .logo-img {
  height: 42px;
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-bottom: 24px;
}

.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
  text-decoration: none;
  transition: var(--transition-fast);
}

.social-icon:hover {
  background: rgba(232, 101, 74, 0.1);
  border-color: var(--accent-pop);
  color: var(--accent-pop);
  transform: translateY(-2px);
}

.footer-company {
  padding: 16px 20px;
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
}

.company-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.company-name {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.company-info {
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 2px;
}

.company-dept {
  font-size: 0.8rem;
  color: var(--text-muted);
}

.footer-links {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.footer-col h4 {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.footer-col a {
  display: block;
  font-size: 0.85rem;
  color: var(--text-secondary);
  text-decoration: none;
  margin-bottom: 10px;
  transition: var(--transition-fast);
}

.footer-col a:hover {
  color: var(--accent-pop);
}

.footer-bottom {
  border-top: 1px solid var(--border-color);
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .nav {
    gap: 20px;
  }

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

  .about-side {
    flex-direction: row;
  }

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

  .audience-stats {
    flex-direction: row;
  }

  .youtube-info {
    grid-template-columns: 1fr;
  }

  .cta-banner-inner {
    flex-direction: column;
    text-align: center;
    padding: 48px 36px;
  }

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

@media (max-width: 768px) {
  .pc-only {
    display: none;
  }

  .container {
    padding: 0 20px;
  }

  .nav {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background: var(--bg-secondary);
    flex-direction: column;
    align-items: flex-start;
    padding: 100px 32px 40px;
    gap: 0;
    transition: var(--transition-base);
    border-left: 1px solid var(--border-color);
    z-index: 1000;
  }

  .nav.open {
    right: 0;
  }

  .nav-link {
    font-size: 1rem;
    padding: 14px 0;
    width: 100%;
    border-bottom: 1px solid var(--border-color);
  }

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

  .header-inner .btn {
    display: none;
  }

  .hero-content {
    padding-top: 120px;
    padding-bottom: 60px;
  }

  .hero-title {
    font-size: clamp(1.8rem, 7vw, 2.8rem);
  }

  .hero-stats {
    flex-direction: column;
    gap: 20px;
    width: 100%;
    padding: 24px 20px;
  }

  .hero-stat-divider {
    width: 60px;
    height: 1px;
  }

  .hero-stat-number {
    font-size: 1.8rem;
  }

  .section {
    padding: 72px 0;
  }

  .section-header {
    margin-bottom: 40px;
  }

  .about-side {
    flex-direction: column;
  }

  .audience-stats {
    flex-direction: column;
  }

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

  .youtube-stats {
    grid-template-columns: 1fr;
  }

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

  .contact-form {
    padding: 32px 24px;
  }

  .flow-step-number {
    width: 52px;
    height: 52px;
    font-size: 0.95rem;
  }

  .flow-step {
    gap: 20px;
  }

  .flow-timeline::before {
    left: 26px;
  }

  .footer-links {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .cta-banner-inner {
    padding: 36px 24px;
  }

  .demo-label {
    min-width: 64px;
    font-size: 0.75rem;
  }
}

@media (max-width: 480px) {
  .hero-cta {
    flex-direction: column;
  }

  .hero-cta .btn {
    width: 100%;
  }

  .plan-amount {
    font-size: 2rem;
  }

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

  .about-card-large {
    padding: 28px 20px;
  }

  .audience-demographics {
    padding: 28px 20px;
  }
}