html {
  scroll-behavior: smooth;
}

:root {
  /* Color */
  --color-bg-deep: #07111F;
  --color-bg-navy: #0B172A;
  --color-bg-light: #F5F7FB;
  --color-surface: #111F35;
  --color-surface-glass: rgba(17, 31, 53, 0.6);
  --color-primary: #3B82F6;
  --color-primary-cta: #2563EB;
  --color-primary-cta-hover: #1D4ED8;
  --color-cyan: #22D3EE;
  --color-light-blue: #60A5FA;
  --color-text-inverse: #F8FAFC;
  --color-text-inverse-sub: #A9B8CC;
  --color-text: #0B172A;
  --color-text-sub: #4B5A70;
  --color-border-inverse: rgba(148, 163, 184, 0.16);
  --color-border-strong: rgba(148, 163, 184, 0.24);

  /* Spacing(モバイルファースト: デフォルトはSP値) */
  --max-width: 1240px;
  --space-side-pc: 48px;
  --space-side-tablet: 32px;
  --space-side-sp: 20px;
  --space-section-pc: 120px;
  --space-section-tablet: 96px;
  --space-section-sp: 80px;
  --space-side: var(--space-side-sp);
  --space-section: var(--space-section-sp);
  --space-card-gap: 24px;
  --space-card-gap-bento: 20px;

  /* Typography */
  --font-jp: "Noto Sans JP", -apple-system, BlinkMacSystemFont, "Hiragino Kaku Gothic ProN", "Yu Gothic", "Segoe UI", sans-serif;
  --font-en: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-size-h1-sp: 32px;
  --font-size-h1: clamp(40px, 4.2vw, 64px);
  --font-size-h2-sp: 26px;
  --font-size-h2: 40px;
  --font-size-h2-emphasis-sp: 28px;
  --font-size-h2-emphasis: 48px;
  --font-size-h3-sp: 18px;
  --font-size-h3: 20px;
  --font-size-body-sp: 15px;
  --font-size-body: 16px;
  --font-size-small-sp: 12px;
  --font-size-small: 13px;
  --font-size-button-sp: 15px;
  --font-size-button: 16px;
  --font-size-eyebrow-sp: 11px;
  --font-size-eyebrow: 12px;

  /* Radius */
  --radius-card: 18px;
  --radius-panel: 24px;
  --radius-button: 999px;
  --radius-chip: 999px;
  --radius-small: 8px;

  /* Shadow / Glow */
  --shadow-card: 0 8px 24px rgba(7, 17, 31, 0.3);
  --shadow-card-hover: 0 16px 40px rgba(7, 17, 31, 0.45);
  --glow-primary: 0 0 60px rgba(59, 130, 246, 0.28);
  --glow-cyan: 0 0 60px rgba(34, 211, 238, 0.22);

  /* Transition */
  --transition-base: 0.2s ease;
  --transition-glow: 0.35s ease;
}

* {
  box-sizing: border-box;
}

html, body {
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  font-family: var(--font-jp);
  color: var(--color-text-inverse);
  background-color: var(--color-bg-deep);
  line-height: 1.75;
  font-size: var(--font-size-body-sp);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}

h1, h2, h3 {
  margin: 0;
  line-height: 1.4;
  font-family: var(--font-jp);
}

p {
  margin: 0;
}

button {
  font-family: inherit;
  cursor: pointer;
}

svg {
  display: block;
}

:focus-visible {
  outline: 3px solid var(--color-primary);
  outline-offset: 2px;
  border-radius: 4px;
}

.section-light :focus-visible {
  outline-color: var(--color-primary-cta);
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-side);
  width: 100%;
}

.section {
  padding: var(--space-section) 0;
  position: relative;
}

.section-light {
  background-color: var(--color-bg-light);
  color: var(--color-text);
}

.section-navy {
  background-color: var(--color-bg-navy);
}

.section-deep {
  background-color: var(--color-bg-deep);
}

.section-narrow {
  max-width: 720px;
  margin: 0 auto;
  padding-left: var(--space-side);
  padding-right: var(--space-side);
}

.section-narrow-880 {
  max-width: 880px;
  margin: 0 auto;
  padding-left: var(--space-side);
  padding-right: var(--space-side);
  text-align: center;
}

.center {
  text-align: center;
}

.sp-only {
  display: none;
}

/* ============================
   Typography helpers
============================ */

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-en);
  font-size: var(--font-size-eyebrow-sp);
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 16px;
}

.eyebrow::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-primary), var(--color-cyan));
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.7);
}

.eyebrow-light {
  color: var(--color-light-blue);
}

.section-title {
  font-size: var(--font-size-h2-sp);
  font-weight: 800;
  margin-bottom: 18px;
  letter-spacing: -0.005em;
}

.section-title-emphasis {
  font-size: var(--font-size-h2-emphasis-sp);
}

.section-lead {
  color: var(--color-text-inverse-sub);
  margin-bottom: 28px;
}

.section-light .section-lead {
  color: var(--color-text-sub);
}

/* ============================
   Buttons
============================ */

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 30px;
  min-height: 50px;
  border-radius: var(--radius-button);
  font-family: var(--font-jp);
  font-size: var(--font-size-button-sp);
  font-weight: 700;
  letter-spacing: 0.01em;
  border: none;
  transition: background-color var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base), color var(--transition-base);
  white-space: normal;
  text-align: center;
}

.button-primary {
  background-color: var(--color-primary-cta);
  color: #FFFFFF;
}

.button-primary:hover {
  background-color: var(--color-primary-cta-hover);
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(37, 99, 235, 0.35);
}

.button-primary:active {
  transform: translateY(0);
  box-shadow: none;
}

.button-white {
  background-color: #FFFFFF;
  color: var(--color-primary-cta);
}

.button-white:hover {
  background-color: #E9F0FF;
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(0, 0, 0, 0.25);
}

.button-large {
  padding: 18px 44px;
  font-size: var(--font-size-button);
}

.button-ghost {
  background: transparent;
  color: var(--color-text-inverse-sub);
  padding: 12px 4px;
  min-height: auto;
  font-weight: 600;
  gap: 6px;
}

.button-ghost:hover {
  color: var(--color-primary);
}

.button-ghost .arrow {
  transition: transform var(--transition-base);
}

.button-ghost:hover .arrow {
  transform: translateX(3px);
}

/* ============================
   Icons
============================ */

.icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-primary);
}

.icon-circle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.12);
  border: 1px solid var(--color-border-inverse);
  margin-bottom: 16px;
}

.icon-circle .icon {
  width: 20px;
  height: 20px;
}

.nowrap-sp {
  white-space: normal;
}

.nowrap {
  white-space: nowrap;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--color-cyan);
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.8);
  flex-shrink: 0;
}

/* ============================
   Header
============================ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background-color: rgba(7, 17, 31, 0.72);
  backdrop-filter: saturate(140%) blur(10px);
  -webkit-backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--color-border-inverse);
  transition: background-color var(--transition-base);
}

.site-header-inner {
  display: flex;
  align-items: center;
  padding: 14px var(--space-side);
}

.brand-mark {
  font-family: var(--font-en);
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--color-text-inverse);
  line-height: 1.3;
}

.brand-mark span {
  display: block;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.22em;
  color: var(--color-primary);
}

/* ============================
   Hero(SECTION 01)
============================ */

.hero {
  background-color: var(--color-bg-deep);
  padding: 56px 0 64px;
  position: relative;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

.hero-bg::before {
  content: "";
  position: absolute;
  top: -10%;
  right: -15%;
  width: 70%;
  height: 70%;
  background: radial-gradient(circle, rgba(59, 130, 246, 0.28), transparent 65%);
  filter: blur(10px);
}

.hero-bg::after {
  content: "";
  position: absolute;
  bottom: -20%;
  left: -10%;
  width: 55%;
  height: 55%;
  background: radial-gradient(circle, rgba(34, 211, 238, 0.16), transparent 65%);
  filter: blur(10px);
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border-inverse) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-inverse) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse at 60% 30%, black 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at 60% 30%, black 0%, transparent 70%);
  opacity: 0.6;
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

.hero-title {
  font-family: var(--font-jp);
  font-size: var(--font-size-h1-sp);
  font-weight: 800;
  color: var(--color-text-inverse);
  letter-spacing: -0.01em;
  line-height: 1.4;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: var(--font-size-body-sp);
  color: var(--color-text-inverse-sub);
  margin-bottom: 28px;
}

.hero-cta {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 14px;
  margin-bottom: 24px;
}

.hero-tags {
  font-family: var(--font-en);
  font-size: var(--font-size-small-sp);
  letter-spacing: 0.02em;
  color: var(--color-text-inverse-sub);
}

/* ============================
   Hero Dashboard mockup
============================ */

.dashboard-wrap {
  position: relative;
  width: 100%;
  max-width: 440px;
  margin: 0 auto;
}

.dashboard-panel {
  position: relative;
  z-index: 2;
  background: var(--color-surface-glass);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-panel);
  padding: 22px;
  box-shadow: 0 24px 60px rgba(7, 17, 31, 0.55), var(--glow-primary);
}

.dashboard-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 18px;
}

.dashboard-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-border-strong);
}

.dashboard-topbar-label {
  margin-left: auto;
  font-family: var(--font-en);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--color-text-inverse-sub);
  text-transform: uppercase;
}

.dashboard-flow {
  position: relative;
  height: 96px;
  margin-bottom: 18px;
  border-radius: var(--radius-small);
  background: rgba(59, 130, 246, 0.06);
  border: 1px solid var(--color-border-inverse);
  overflow: hidden;
}

.dashboard-flow svg {
  width: 100%;
  height: 100%;
}

.dashboard-flow-line {
  fill: none;
  stroke: url(#nexora-line-gradient);
  stroke-width: 1.6;
  stroke-dasharray: 6 6;
  animation: dash-flow 6s linear infinite;
}

.dashboard-flow-node {
  fill: var(--color-bg-deep);
  stroke: var(--color-cyan);
  stroke-width: 1.6;
}

.dashboard-flow-node-fill {
  fill: var(--color-cyan);
}

.dashboard-progress {
  height: 6px;
  border-radius: 999px;
  background: rgba(148, 163, 184, 0.16);
  overflow: hidden;
  margin-bottom: 18px;
}

.dashboard-progress-bar {
  height: 100%;
  width: 62%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-cyan));
  background-size: 200% 100%;
  animation: progress-shimmer 3.5s ease-in-out infinite;
}

.dashboard-status-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.dashboard-status-card {
  padding: 12px 14px;
  border-radius: var(--radius-small);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--color-border-inverse);
}

.dashboard-status-label {
  display: block;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--color-text-inverse-sub);
  text-transform: uppercase;
  margin-bottom: 6px;
}

.dashboard-status-value {
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text-inverse);
}

.dashboard-floating {
  position: absolute;
  z-index: 3;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  border-radius: var(--radius-chip);
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border-strong);
  box-shadow: 0 12px 28px rgba(7, 17, 31, 0.45);
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--color-text-inverse);
}

.dashboard-floating .status-dot {
  background: var(--color-primary);
  box-shadow: 0 0 8px rgba(59, 130, 246, 0.8);
}

.dashboard-floating-a {
  top: -18px;
  left: -14px;
  animation: float-a 5s ease-in-out infinite;
}

.dashboard-floating-b {
  bottom: -16px;
  right: -10px;
  animation: float-b 6s ease-in-out infinite;
}

@keyframes float-a {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

@keyframes float-b {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(7px); }
}

@keyframes dash-flow {
  to { stroke-dashoffset: -120; }
}

@keyframes progress-shimmer {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ============================
   Grids / Cards
============================ */

.grid {
  display: grid;
  gap: var(--space-card-gap);
}

.card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-inverse);
  border-radius: var(--radius-card);
  padding: 26px;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-card-hover);
  border-color: rgba(59, 130, 246, 0.4);
}

.card h3 {
  font-size: var(--font-size-h3-sp);
  font-weight: 700;
  margin-bottom: 10px;
}

.card p {
  color: var(--color-text-inverse-sub);
  font-size: var(--font-size-body-sp);
}

/* ============================
   Problem(SECTION 02)
============================ */

.problem-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  border-top: 1px solid var(--color-border-inverse);
}

.problem-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--color-border-inverse);
}

.problem-chip {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(59, 130, 246, 0.14);
  color: var(--color-light-blue);
  font-family: var(--font-en);
  font-size: 12px;
  font-weight: 700;
}

.problem-item p {
  font-size: var(--font-size-body-sp);
  color: var(--color-text-inverse-sub);
}

.problem-item.is-emphasis p {
  color: var(--color-text-inverse);
  font-weight: 600;
}

/* ============================
   Insight(SECTION 03)
============================ */

.insight {
  position: relative;
  overflow: hidden;
}

.insight-bg-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 68% 45%;
  opacity: 0.4;
  z-index: 0;
}

.insight-bg-overlay {
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(180deg, var(--color-bg-deep) 0%, rgba(7, 17, 31, 0.85) 40%, var(--color-bg-deep) 100%);
}

.insight-inner {
  position: relative;
  z-index: 1;
}

.insight-title {
  font-size: var(--font-size-h2-emphasis-sp);
  font-weight: 800;
  line-height: 1.5;
  margin-bottom: 20px;
}

/* ============================
   How It Works(SECTION 04)
============================ */

.workflow {
  position: relative;
}

.workflow-list {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  margin-top: 8px;
}

.workflow-list::before {
  content: "";
  position: absolute;
  left: 21px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(180deg, var(--color-primary), var(--color-cyan));
  opacity: 0.4;
}

.workflow-step {
  position: relative;
  display: flex;
  gap: 18px;
  padding: 18px 0;
}

.workflow-step-marker {
  position: relative;
  z-index: 1;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--color-bg-deep);
  border: 1px solid var(--color-border-strong);
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 700;
  color: var(--color-cyan);
}

.workflow-step-body h3 {
  font-size: var(--font-size-h3-sp);
  font-weight: 700;
  margin-bottom: 6px;
}

.workflow-step-body p {
  font-size: var(--font-size-body-sp);
  color: var(--color-text-inverse-sub);
}

/* ============================
   Features(SECTION 05・Bento Grid)
============================ */

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

.bento-card {
  position: relative;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-inverse);
  border-radius: var(--radius-card);
  padding: 24px;
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
}

.bento-card:hover {
  transform: translateY(-4px);
  border-color: rgba(59, 130, 246, 0.4);
  box-shadow: var(--shadow-card-hover);
}

.bento-card::after {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.35), transparent 60%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.6;
}

.bento-card .eyebrow {
  font-size: 10px;
  margin-bottom: 12px;
}

.bento-card h3 {
  font-size: var(--font-size-h3-sp);
  font-weight: 700;
  margin-bottom: 8px;
}

.bento-card p {
  font-size: var(--font-size-body-sp);
  color: var(--color-text-inverse-sub);
}

.bento-visual {
  margin-bottom: 16px;
  height: 40px;
  display: flex;
  align-items: center;
}

/* mini visuals per card type */
.mv-nodes { display: flex; align-items: center; gap: 6px; }
.mv-nodes span { width: 8px; height: 8px; border-radius: 50%; background: var(--color-primary); box-shadow: 0 0 6px rgba(59,130,246,.7); }
.mv-nodes .line { flex: 1; max-width: 40px; height: 1px; background: linear-gradient(90deg, var(--color-primary), var(--color-cyan)); opacity: .6; }

.mv-flow { display: flex; align-items: center; gap: 4px; }
.mv-flow span { width: 6px; height: 6px; border-radius: 50%; background: var(--color-cyan); }
.mv-flow .arrow { width: 14px; height: 1px; background: var(--color-border-strong); position: relative; }

.mv-connection { width: 100%; height: 2px; background: repeating-linear-gradient(90deg, var(--color-primary) 0 6px, transparent 6px 12px); opacity: .7; }

.mv-chip { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; border: 1px solid var(--color-border-strong); font-family: var(--font-en); font-size: 11px; font-weight: 700; color: var(--color-text-inverse-sub); letter-spacing: .04em; }

.mv-chat { display: flex; align-items: center; gap: 6px; }
.mv-chat .bubble { padding: 6px 10px; border-radius: 999px 999px 999px 4px; background: rgba(59,130,246,.14); font-size: 11px; color: var(--color-text-inverse-sub); }

.mv-loop svg { width: 28px; height: 28px; color: var(--color-cyan); }

.bento-large {
  grid-column: span 1;
}

.bento-medium {
  grid-column: span 1;
}

.bento-small {
  grid-column: span 1;
}

/* ============================
   Middle CTA(SECTION 06)
============================ */

.mid-cta {
  padding: 0;
}

.mid-cta-panel {
  background: linear-gradient(120deg, rgba(37, 99, 235, 0.9), rgba(11, 23, 42, 0.95) 70%);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-panel);
  padding: 40px 28px;
  text-align: center;
}

.mid-cta-panel p {
  color: var(--color-text-inverse-sub);
  margin-bottom: 22px;
  font-size: var(--font-size-body-sp);
}

/* ============================
   Use Case(SECTION 07)
============================ */

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

.usecase-card {
  background-color: var(--color-surface);
  border: 1px solid var(--color-border-inverse);
  border-radius: var(--radius-card);
  overflow: hidden;
  transition: transform var(--transition-base), box-shadow var(--transition-base);
}

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

.usecase-browserbar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.03);
  border-bottom: 1px solid var(--color-border-inverse);
}

.usecase-browserbar .dashboard-dot {
  width: 7px;
  height: 7px;
}

.usecase-example-tag {
  margin-left: auto;
  font-family: var(--font-en);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-cyan);
  text-transform: uppercase;
  padding: 3px 9px;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.4);
}

.usecase-body {
  padding: 22px;
}

.usecase-body h3 {
  font-size: var(--font-size-h3-sp);
  font-weight: 700;
  margin-bottom: 8px;
}

.usecase-body p {
  font-size: var(--font-size-body-sp);
  color: var(--color-text-inverse-sub);
}

.usecase-note {
  margin-top: 24px;
  font-size: var(--font-size-small-sp);
  color: var(--color-text-inverse-sub);
}

/* ============================
   Support(SECTION 08)
============================ */

.support-diagram {
  position: relative;
  max-width: 460px;
  margin: 32px auto 0;
  aspect-ratio: 1 / 1;
}

.support-center {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 118px;
  height: 118px;
  border-radius: 50%;
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--color-border-strong);
  box-shadow: 0 0 46px rgba(59, 130, 246, 0.32), 0 0 26px rgba(34, 211, 238, 0.22);
  text-align: center;
  padding: 8px;
}

.support-center strong {
  font-family: var(--font-en);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.support-node {
  position: absolute;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(15, 27, 46, 0.92);
  border: 1px solid var(--color-border-strong);
  font-family: var(--font-en);
  font-size: 11px;
  font-weight: 700;
  color: var(--color-text-inverse);
  white-space: nowrap;
}

.support-node-1 { top: 2%; left: 50%; transform: translateX(-50%); }
.support-node-2 { top: 28%; right: 0; }
.support-node-3 { bottom: 28%; right: 4%; }
.support-node-4 { bottom: 2%; left: 50%; transform: translateX(-50%); }
.support-node-5 { bottom: 28%; left: 4%; }
.support-node-6 { top: 28%; left: 0; }

.support-svg {
  position: absolute;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.support-svg line {
  stroke: rgba(96, 165, 250, 0.5);
  stroke-width: 1.4;
}

/* ============================
   FAQ(SECTION 09)
============================ */

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

.faq-heading {
  margin: 0;
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 4px;
  background: none;
  border: none;
  text-align: left;
  font-size: var(--font-size-body-sp);
  font-weight: 700;
  color: var(--color-text-inverse);
  min-height: 48px;
}

.faq-icon {
  position: relative;
  flex-shrink: 0;
  width: 20px;
  height: 20px;
}

.faq-icon::before,
.faq-icon::after {
  content: "";
  position: absolute;
  background-color: var(--color-primary);
  border-radius: 2px;
  transition: transform var(--transition-base);
}

.faq-icon::before {
  top: 50%;
  left: 0;
  width: 100%;
  height: 2px;
  transform: translateY(-50%);
}

.faq-icon::after {
  top: 0;
  left: 50%;
  width: 2px;
  height: 100%;
  transform: translateX(-50%);
}

.faq-question[aria-expanded="true"] .faq-icon::after {
  transform: translateX(-50%) scaleY(0);
}

.faq-answer {
  overflow: hidden;
  transition: max-height 0.25s ease;
}

.faq-answer p {
  padding: 0 4px 20px;
  color: var(--color-text-inverse-sub);
  font-size: var(--font-size-body-sp);
}

/* ============================
   Final CTA(SECTION 10)
============================ */

.section-final-cta {
  padding: var(--space-section-sp) 0;
  background-color: var(--color-bg-deep);
}

.final-cta {
  position: relative;
  overflow: hidden;
  background: radial-gradient(circle at 30% 20%, rgba(59, 130, 246, 0.35), transparent 55%),
              radial-gradient(circle at 80% 80%, rgba(34, 211, 238, 0.22), transparent 55%),
              linear-gradient(135deg, var(--color-bg-navy), var(--color-bg-deep));
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-panel);
  padding: 48px 24px;
  text-align: center;
}

.final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--color-border-inverse) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border-inverse) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  pointer-events: none;
}

.final-cta-inner {
  position: relative;
  z-index: 1;
}

.final-cta .section-title {
  margin-bottom: 16px;
}

.final-cta p {
  color: var(--color-text-inverse-sub);
  max-width: 520px;
  margin: 0 auto 28px;
}

/* ============================
   Footer(SECTION 11)
============================ */

.site-footer {
  background-color: var(--color-bg-deep);
  padding: 40px 0;
  border-top: 1px solid var(--color-border-inverse);
}

.site-footer-inner {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.footer-disclaimer {
  font-size: var(--font-size-small-sp);
  color: var(--color-text-inverse-sub);
  line-height: 1.7;
  max-width: 560px;
}

/* ============================
   Scroll reveal
============================ */

.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-stagger.is-visible {
  transition-delay: var(--reveal-delay, 0s);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .card:hover,
  .bento-card:hover,
  .usecase-card:hover,
  .button-primary:hover,
  .button-white:hover {
    transform: none;
  }

  .faq-answer {
    transition: none;
  }

  .dashboard-floating-a,
  .dashboard-floating-b,
  .dashboard-progress-bar,
  .dashboard-flow-line {
    animation: none;
  }
}

/* ============================
   Responsive: Tablet (768px - 1023px)
============================ */

@media (min-width: 768px) {
  :root {
    --space-side: var(--space-side-tablet);
    --space-section: var(--space-section-tablet);
  }

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

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

  .section-title {
    font-size: calc(var(--font-size-h2-sp) * 1.15);
  }
}

/* ============================
   Responsive: Desktop (>=1024px)
============================ */

@media (min-width: 1024px) {
  :root {
    --space-side: var(--space-side-pc);
    --space-section: var(--space-section-pc);
  }

  .eyebrow {
    font-size: var(--font-size-eyebrow);
  }

  .section-title {
    font-size: var(--font-size-h2);
  }

  .section-title-emphasis {
    font-size: var(--font-size-h2-emphasis);
  }

  .card h3,
  .bento-card h3,
  .usecase-body h3,
  .workflow-step-body h3 {
    font-size: var(--font-size-h3);
  }

  .card p,
  .bento-card p,
  .usecase-body p,
  .workflow-step-body p,
  .problem-item p,
  .faq-question,
  .faq-answer p {
    font-size: var(--font-size-body);
  }

  .button {
    font-size: var(--font-size-button);
  }

  .hero {
    padding: 0;
    min-height: 90vh;
    display: flex;
    align-items: center;
  }

  .hero-inner {
    grid-template-columns: 1.08fr 0.92fr;
    gap: 64px;
  }

  .hero-title {
    font-size: var(--font-size-h1);
  }

  .hero-sub {
    font-size: var(--font-size-body);
  }

  .hero-cta {
    flex-direction: row;
    align-items: center;
  }

  .insight-title {
    font-size: var(--font-size-h2-emphasis);
  }

  .workflow-list {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
  }

  .workflow-list::before {
    left: 0;
    right: 0;
    top: 21px;
    bottom: auto;
    width: auto;
    height: 1px;
  }

  .workflow-step {
    flex-direction: column;
    align-items: flex-start;
    padding: 0;
  }

  .workflow-step:nth-child(even) {
    margin-top: 48px;
  }

  .bento-grid {
    grid-template-columns: repeat(4, 1fr);
    grid-auto-rows: minmax(150px, auto);
  }

  .bento-large {
    grid-column: span 2;
  }

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

  .final-cta {
    padding: 88px 48px;
  }

  .section-final-cta {
    padding: var(--space-section-pc) 0;
  }

  #problem {
    padding-top: 96px;
  }

  .support-diagram {
    max-width: 560px;
  }

  .support-center {
    width: 140px;
    height: 140px;
  }

  .support-center strong {
    font-size: 15px;
  }

  .support-node {
    font-size: 12px;
    padding: 9px 15px;
  }

  .support-node-1 { top: 0; }
  .support-node-4 { bottom: 0; }
  .support-node-2 { top: 25%; right: -2%; }
  .support-node-6 { top: 25%; left: -2%; }
  .support-node-3 { bottom: 25%; right: 2%; }
  .support-node-5 { bottom: 25%; left: 2%; }
}

/* ============================
   Responsive: Mobile (<=767px) fine-tuning
============================ */

@media (max-width: 767px) {
  .sp-only {
    display: inline;
  }

  .nowrap-sp {
    white-space: nowrap;
  }

  .button-large {
    padding: 14px 22px;
    font-size: var(--font-size-button-sp);
    min-height: 48px;
    box-sizing: border-box;
    justify-content: center;
    max-width: 100%;
    white-space: nowrap;
  }

  .final-cta {
    padding: 40px 20px;
  }

  .final-cta .button-large {
    width: 100%;
    padding-left: 20px;
    padding-right: 20px;
  }

  .mid-cta-panel .button-large {
    width: 100%;
    padding-left: 20px;
    padding-right: 20px;
  }

  .dashboard-wrap {
    max-width: 360px;
  }

  .support-diagram {
    max-width: 320px;
  }

  .support-node {
    font-size: 10px;
    padding: 6px 9px;
  }

  .support-center {
    width: 92px;
    height: 92px;
  }

  .support-center strong {
    font-size: 11px;
  }
}