/* File: assets/css/style.css */

/* ============================================
   Design Tokens
============================================ */
:root {
  --color-bg: #0A0E1A;
  --color-bg-alt: #1F2433;
  --color-text: #FAFAFA;
  --color-text-dim: #8B92A8;
  --color-accent-cyan: #00E5FF;
  --color-accent-violet: #7C3AED;
  --color-accent-green: #10F0A0;
  --color-border: rgba(255, 255, 255, 0.08);

  --font-display: "Space Grotesk", "Noto Sans JP", sans-serif;
  --font-body: "Noto Sans JP", -apple-system, sans-serif;
  --font-mono: "JetBrains Mono", "Geist Mono", monospace;

  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 2rem;
  --space-lg: 4rem;
  --space-xl: 8rem;

  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;

  --transition: cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.3s var(--transition);
}

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

/* ============================================
   Typography
============================================ */
h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.02em;
}

.text-mono {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  color: var(--color-text-dim);
  text-transform: uppercase;
}

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

/* ============================================
   Layout
============================================ */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 var(--space-md);
}

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

.section-label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
}

.section-label::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--color-accent-cyan);
}

/* ============================================
   Header
============================================ */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: var(--space-sm) 0;
  background: rgba(10, 14, 26, 0.7);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--color-border);
  transition: transform 0.4s var(--transition);
}

.header.is-hidden {
  transform: translateY(-100%);
}

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

/* ============================================
   Logo
============================================ */
.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  height: 40px;
  line-height: 1;
  flex-shrink: 0;
}

.logo__img {
  height: 36px;
  width: auto;
  max-width: 200px;
  display: block;
  object-fit: contain;
}

.logo__text {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: inline-flex;
  align-items: baseline;
  line-height: 1;
}

.logo__text span {
  color: var(--color-accent-cyan);
  font-weight: 700;
  margin-left: 1px;
  animation: dot-pulse 3s infinite ease-in-out;
}

.footer .logo {
  height: 32px;
}

.footer .logo__img {
  height: 28px;
  max-width: 160px;
}

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

/* ============================================
   Navigation
============================================ */
.nav {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.nav a {
  font-size: 0.9rem;
  color: var(--color-text-dim);
  position: relative;
}

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

.nav a::after {
  content: "";
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--color-accent-cyan);
  transition: width 0.3s var(--transition);
}

.nav a:hover::after {
  width: 100%;
}

.nav__cta {
  padding: 0.5rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text) !important;
}

.nav__cta:hover {
  background: var(--color-accent-cyan);
  color: var(--color-bg) !important;
  border-color: var(--color-accent-cyan);
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ============================================
   Hero
============================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: 80px;
  overflow: hidden;
}

.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.5;
}

.hero__content {
  position: relative;
  z-index: 2;
}

.hero__title {
  font-size: clamp(2.5rem, 7vw, 6rem);
  font-weight: 700;
  margin-bottom: var(--space-md);
}

.hero__subtitle {
  font-size: clamp(1rem, 2vw, 1.25rem);
  color: var(--color-text-dim);
  max-width: 600px;
  margin-bottom: var(--space-lg);
}

.hero__cta {
  display: flex;
  gap: var(--space-sm);
  flex-wrap: wrap;
}

/* ============================================
   Buttons
============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 500;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all 0.3s var(--transition);
  border: 1px solid transparent;
}

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

.btn--primary:hover {
  background: var(--color-text);
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(0, 229, 255, 0.3);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-accent-cyan);
  color: var(--color-accent-cyan);
}

/* ============================================
   Scroll Hint
============================================ */
.scroll-hint {
  position: absolute;
  bottom: var(--space-md);
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  letter-spacing: 0.2em;
  z-index: 2;
}

.scroll-hint::after {
  content: "";
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, var(--color-accent-cyan), transparent);
  margin: var(--space-xs) auto 0;
  animation: scroll-pulse 2s infinite;
}

@keyframes scroll-pulse {
  0%, 100% { opacity: 0.3; transform: scaleY(0.5); transform-origin: top; }
  50% { opacity: 1; transform: scaleY(1); }
}

/* ============================================
   Cards & Grid
============================================ */
.grid {
  display: grid;
  gap: var(--space-md);
}

.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.4s var(--transition);
}

.card:hover {
  border-color: var(--color-accent-cyan);
  transform: translateY(-4px);
}

.card__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.card__text {
  color: var(--color-text-dim);
  font-size: 0.95rem;
}

/* ============================================
   Section Headings
============================================ */
.section__heading {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-md);
}

.section__lead {
  font-size: 1.1rem;
  color: var(--color-text-dim);
  max-width: 700px;
  margin-bottom: var(--space-lg);
}

/* ============================================
   Stats
============================================ */
.stat__number {
  font-family: var(--font-display);
  font-size: clamp(3rem, 8vw, 5rem);
  font-weight: 700;
  line-height: 1;
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat__label {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: var(--space-xs);
}

/* ============================================
   Pricing Table
============================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.pricing-card {
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  position: relative;
}

.pricing-card--featured {
  border-color: var(--color-accent-cyan);
  background: linear-gradient(180deg, rgba(0, 229, 255, 0.05), transparent);
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 4px 12px;
  background: var(--color-accent-cyan);
  color: var(--color-bg);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.pricing-card__name {
  font-size: 1.5rem;
  margin-bottom: var(--space-xs);
}

.pricing-card__price {
  font-size: 2.5rem;
  font-weight: 700;
  font-family: var(--font-display);
  margin-bottom: var(--space-xs);
}

.pricing-card__price span {
  font-size: 1rem;
  color: var(--color-text-dim);
  font-weight: 400;
}

.pricing-card__target {
  color: var(--color-text-dim);
  font-size: 0.9rem;
  margin-bottom: var(--space-md);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.pricing-card__features {
  list-style: none;
  margin-bottom: var(--space-md);
}

.pricing-card__features li {
  padding: 0.5rem 0;
  padding-left: 1.5rem;
  position: relative;
  font-size: 0.9rem;
}

.pricing-card__features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent-green);
}

/* ============================================
   Forms
============================================ */
.form {
  max-width: 720px;
  margin: 0 auto;
}

.form__group {
  margin-bottom: var(--space-md);
}

.form__label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  margin-bottom: var(--space-xs);
}

.form__input,
.form__textarea,
.form__select {
  width: 100%;
  padding: 0.9rem 1rem;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: all 0.3s var(--transition);
}

.form__input:focus,
.form__textarea:focus,
.form__select:focus {
  outline: none;
  border-color: var(--color-accent-cyan);
  background: rgba(0, 229, 255, 0.05);
}

.form__textarea {
  min-height: 160px;
  resize: vertical;
}

/* ============================================
   Member Cards
============================================ */
.member {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: var(--space-md);
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-md);
  transition: all 0.4s var(--transition);
}

.member:hover {
  border-color: var(--color-accent-cyan);
}

.member__photo {
  aspect-ratio: 1;
  border-radius: var(--radius-md);
  overflow: hidden;
  position: relative;
}

.member__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(80%);
  transition: filter 0.4s var(--transition);
}

.member:hover .member__photo img {
  filter: grayscale(0%);
}

.member__photo--placeholder {
  background: linear-gradient(135deg, var(--color-accent-violet), var(--color-accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 4rem;
  font-weight: 700;
  filter: grayscale(80%);
}

.member__name {
  font-size: 1.75rem;
  margin-bottom: var(--space-xs);
}

.member__role {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-cyan);
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.member__quote {
  font-style: italic;
  color: var(--color-text-dim);
  border-left: 2px solid var(--color-accent-cyan);
  padding-left: var(--space-sm);
  margin: var(--space-sm) 0;
}

/* ============================================
   Founder Photo
============================================ */
.founder__photo {
  aspect-ratio: 3/4;
  overflow: hidden;
  border-radius: var(--radius-md);
  position: relative;
}

.founder__photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(100%);
  transition: filter 0.6s var(--transition);
}

.founder__photo:hover img {
  filter: grayscale(0%);
}

/* ============================================
   Job List
============================================ */
.job {
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  margin-bottom: var(--space-sm);
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: all 0.3s var(--transition);
  cursor: pointer;
}

.job:hover {
  border-color: var(--color-accent-cyan);
  transform: translateX(4px);
}

.job__status {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent-green);
  margin-bottom: var(--space-xs);
}

.job__status::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-accent-green);
  border-radius: 50%;
  box-shadow: 0 0 8px var(--color-accent-green);
}

.job__title {
  font-size: 1.25rem;
  margin-bottom: 0.25rem;
}

.job__meta {
  color: var(--color-text-dim);
  font-size: 0.9rem;
}

.job__arrow {
  font-size: 1.5rem;
  color: var(--color-accent-cyan);
}

/* ============================================
   Table
============================================ */
.info-table {
  width: 100%;
  border-collapse: collapse;
}

.info-table th,
.info-table td {
  padding: var(--space-sm);
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

.info-table th {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  width: 30%;
  font-weight: 500;
}

/* ============================================
   Timeline
============================================ */
.timeline {
  position: relative;
  padding-left: var(--space-md);
}

.timeline::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 1px;
  background: linear-gradient(to bottom, var(--color-accent-cyan), transparent);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-md);
}

.timeline__item::before {
  content: "";
  position: absolute;
  left: calc(var(--space-md) * -1);
  top: 8px;
  width: 12px;
  height: 12px;
  background: var(--color-accent-cyan);
  border-radius: 50%;
  transform: translateX(50%);
}

.timeline__date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-cyan);
  margin-bottom: var(--space-xs);
}

/* ============================================
   Letter Section
============================================ */
.letter {
  max-width: 720px;
  margin: 0 auto;
  font-size: 1.1rem;
  line-height: 2;
}

.letter p {
  margin-bottom: var(--space-sm);
}

.letter__signature {
  margin-top: var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-style: italic;
  color: var(--color-text-dim);
}

/* ============================================
   Photo Gallery
============================================ */
.gallery {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  grid-auto-rows: 120px;
  gap: var(--space-sm);
}

.gallery__item {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  cursor: pointer;
  transition: all 0.4s var(--transition);
}

.gallery__item:hover {
  transform: translateY(-4px);
  border-color: var(--color-accent-cyan);
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  filter: grayscale(20%);
  transition: all 0.6s var(--transition);
}

.gallery__item:hover img {
  filter: grayscale(0%);
  transform: scale(1.05);
}

.gallery__item--lg {
  grid-column: span 6;
  grid-row: span 3;
}

.gallery__item--md {
  grid-column: span 6;
  grid-row: span 2;
}

.gallery__item--sm {
  grid-column: span 3;
  grid-row: span 2;
}

.gallery__item--wide {
  grid-column: span 6;
  grid-row: span 2;
}

.gallery__caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: var(--space-sm);
  background: linear-gradient(to top, rgba(10, 14, 26, 0.95), transparent);
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.05em;
  color: var(--color-text);
  opacity: 0;
  transition: opacity 0.4s var(--transition);
}

.gallery__item:hover .gallery__caption {
  opacity: 1;
}

.gallery__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-accent-violet), var(--color-accent-cyan));
  opacity: 0.3;
  color: var(--color-text);
  font-family: var(--font-mono);
  font-size: 0.8rem;
  letter-spacing: 0.1em;
}

/* ============================================
   Voice Cards
============================================ */
.voice-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.voice {
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  position: relative;
}

.voice::before {
  content: "\201C";
  position: absolute;
  top: -20px;
  left: var(--space-sm);
  font-family: var(--font-display);
  font-size: 5rem;
  color: var(--color-accent-cyan);
  line-height: 1;
  opacity: 0.5;
}

.voice__text {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.voice__author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

.voice__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-violet), var(--color-accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  filter: grayscale(60%);
  overflow: hidden;
}

.voice__avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.voice__name {
  font-weight: 500;
  font-size: 0.95rem;
}

.voice__role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
   Values List
============================================ */
.values-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-sm);
  max-width: 800px;
  margin: 0 auto;
}

.value-row {
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--color-border);
  align-items: start;
}

.value-row:last-child {
  border-bottom: none;
}

.value-row__number {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-cyan);
  letter-spacing: 0.1em;
}

.value-row__title {
  font-size: 1.3rem;
  margin-bottom: 0.5rem;
}

.value-row__text {
  color: var(--color-text-dim);
  font-size: 0.95rem;
}

/* ============================================
   Meetup Box
============================================ */
.meetup-box {
  max-width: 800px;
  margin: 0 auto;
  padding: var(--space-lg);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(0, 229, 255, 0.05));
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  text-align: center;
}

.meetup-box__icon {
  font-size: 3rem;
  margin-bottom: var(--space-sm);
}

.meetup-box h3 {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.meetup-box__text {
  color: var(--color-text-dim);
  margin-bottom: var(--space-md);
  font-size: 1.05rem;
  line-height: 1.8;
}

.meetup-box__features {
  display: flex;
  justify-content: center;
  gap: var(--space-md);
  flex-wrap: wrap;
  margin-bottom: var(--space-md);
}

.meetup-box__feature {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text);
}

.meetup-box__feature::before {
  content: "\2713";
  color: var(--color-accent-green);
  font-weight: 700;
}

/* ============================================
   Lightbox
============================================ */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(10, 14, 26, 0.95);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s var(--transition), visibility 0.4s var(--transition);
}

.lightbox.is-active {
  opacity: 1;
  visibility: visible;
}

.lightbox__container {
  position: relative;
  width: 90vw;
  max-width: 1400px;
  height: 85vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

.lightbox__image {
  max-width: 100%;
  max-height: 100%;
  object-fit: contain;
  border-radius: var(--radius-md);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
  opacity: 0;
  transform: scale(0.95);
  transition: all 0.4s var(--transition);
}

.lightbox.is-active .lightbox__image {
  opacity: 1;
  transform: scale(1);
}

.lightbox__caption {
  position: absolute;
  bottom: -50px;
  left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text);
  letter-spacing: 0.05em;
  white-space: nowrap;
  text-align: center;
}

.lightbox__close,
.lightbox__prev,
.lightbox__next {
  position: absolute;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  transition: all 0.3s var(--transition);
  backdrop-filter: blur(10px);
}

.lightbox__close:hover,
.lightbox__prev:hover,
.lightbox__next:hover {
  background: var(--color-accent-cyan);
  color: var(--color-bg);
  border-color: var(--color-accent-cyan);
  transform: scale(1.1);
}

.lightbox__close {
  top: 24px;
  right: 24px;
}

.lightbox__prev {
  left: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__next {
  right: 24px;
  top: 50%;
  transform: translateY(-50%);
}

.lightbox__prev:hover,
.lightbox__next:hover {
  transform: translateY(-50%) scale(1.1);
}

.lightbox__counter {
  position: absolute;
  top: 24px;
  left: 24px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-dim);
  letter-spacing: 0.1em;
  padding: 0.5rem 1rem;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  backdrop-filter: blur(10px);
}

body.lightbox-open {
  overflow: hidden;
}

/* ============================================
   Footer
============================================ */
.footer {
  padding: var(--space-lg) 0 var(--space-md);
  border-top: 1px solid var(--color-border);
  margin-top: var(--space-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-md);
  margin-bottom: var(--space-lg);
}

.footer__col h4 {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-text-dim);
  margin-bottom: var(--space-sm);
}

.footer__col ul {
  list-style: none;
}

.footer__col li {
  margin-bottom: 0.5rem;
}

.footer__col a {
  color: var(--color-text-dim);
  font-size: 0.9rem;
}

.footer__col a:hover {
  color: var(--color-accent-cyan);
}

.footer__bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.status-indicator {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}

.status-indicator::before {
  content: "";
  width: 8px;
  height: 8px;
  background: var(--color-accent-green);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 0 0 var(--color-accent-green); }
  50% { opacity: 0.6; box-shadow: 0 0 0 6px transparent; }
}

/* ============================================
   Animations
============================================ */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.8s var(--transition);
}

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

/* ============================================
   Responsive
============================================ */
@media (max-width: 768px) {
  .grid--3,
  .grid--4,
  .pricing-grid {
    grid-template-columns: 1fr;
  }

  .grid--2 {
    grid-template-columns: 1fr;
  }

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

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

  .nav {
    display: none;
  }

  .menu-toggle {
    display: block;
  }

  .nav.is-open {
    display: flex;
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    z-index: 99;
  }

  .nav.is-open a {
    font-size: 1.5rem;
    margin: var(--space-sm) 0;
  }

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

  .footer__bottom {
    flex-direction: column;
    gap: var(--space-sm);
  }

  .logo {
    height: 32px;
  }

  .logo__img {
    height: 28px;
    max-width: 150px;
  }

  .logo__text {
    font-size: 1.1rem;
  }

  .gallery {
    grid-template-columns: repeat(2, 1fr);
    grid-auto-rows: 140px;
  }

  .gallery__item--lg,
  .gallery__item--md,
  .gallery__item--wide,
  .gallery__item--sm {
    grid-column: span 2;
    grid-row: span 2;
  }

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

  .value-row {
    grid-template-columns: 1fr;
    gap: var(--space-xs);
  }

  .meetup-box {
    padding: var(--space-md);
  }

  .meetup-box__features {
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
  }

  .lightbox__close,
  .lightbox__prev,
  .lightbox__next {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .lightbox__close { top: 16px; right: 16px; }
  .lightbox__prev { left: 16px; }
  .lightbox__next { right: 16px; }
  .lightbox__counter { top: 16px; left: 16px; }
}
/* File: assets/css/style.css （末尾に追記） */

/* ============================================
   Blog Post Article
============================================ */
.article {
  max-width: 760px;
  margin: 0 auto;
}

.article__header {
  margin-bottom: var(--space-lg);
  padding-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
}

.article__meta {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
  flex-wrap: wrap;
}

.article__date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-cyan);
  letter-spacing: 0.05em;
}

.article__category {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 4px 12px;
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: 100px;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.article__title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  margin-bottom: var(--space-md);
  line-height: 1.3;
}

.article__lead {
  font-size: 1.2rem;
  color: var(--color-text-dim);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.article__author {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-top: var(--space-md);
}

.article__author-avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-accent-violet), var(--color-accent-cyan));
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 700;
  filter: grayscale(60%);
  overflow: hidden;
}

.article__author-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.article__author-info {
  display: flex;
  flex-direction: column;
}

.article__author-name {
  font-weight: 500;
  font-size: 0.95rem;
}

.article__author-role {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  letter-spacing: 0.05em;
}

/* 本文タイポグラフィ */
.article__body {
  font-size: 1.05rem;
  line-height: 2;
}

.article__body h2 {
  font-size: 1.75rem;
  margin: var(--space-lg) 0 var(--space-md);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.article__body h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.article__body h3 {
  font-size: 1.3rem;
  margin: var(--space-md) 0 var(--space-sm);
  color: var(--color-accent-cyan);
}

.article__body p {
  margin-bottom: var(--space-md);
  color: var(--color-text);
}

.article__body strong {
  color: var(--color-text);
  font-weight: 700;
}

.article__body em {
  font-style: italic;
  color: var(--color-text-dim);
}

.article__body blockquote {
  margin: var(--space-md) 0;
  padding: var(--space-md) var(--space-md);
  background: var(--color-bg-alt);
  border-left: 3px solid var(--color-accent-cyan);
  border-radius: var(--radius-sm);
  font-style: italic;
  color: var(--color-text-dim);
}

.article__body ul,
.article__body ol {
  margin: var(--space-md) 0;
  padding-left: var(--space-md);
}

.article__body li {
  margin-bottom: var(--space-xs);
  color: var(--color-text-dim);
}

.article__body li::marker {
  color: var(--color-accent-cyan);
}

.article__body code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--color-bg-alt);
  padding: 2px 8px;
  border-radius: 4px;
  color: var(--color-accent-cyan);
}

.article__body img {
  margin: var(--space-md) 0;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
}

.article__body hr {
  margin: var(--space-lg) 0;
  border: none;
  border-top: 1px solid var(--color-border);
}

/* 記事フッター（次の記事ナビ・SNSシェア） */
.article__footer {
  margin-top: var(--space-lg);
  padding-top: var(--space-md);
  border-top: 1px solid var(--color-border);
}

.article__share {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-dim);
}

.article__share-buttons {
  display: flex;
  gap: var(--space-xs);
}

.article__share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  color: var(--color-text);
  transition: all 0.3s var(--transition);
  text-decoration: none;
}

.article__share-btn:hover {
  background: var(--color-accent-cyan);
  color: var(--color-bg);
  border-color: var(--color-accent-cyan);
  transform: scale(1.1);
}

/* 関連記事ナビ */
.article__nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.article__nav-link {
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--transition);
}

.article__nav-link:hover {
  border-color: var(--color-accent-cyan);
  transform: translateY(-2px);
}

.article__nav-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
}

.article__nav-title {
  font-size: 1rem;
  font-weight: 500;
}

.article__nav-link--next {
  text-align: right;
}

/* 戻るリンク */
.article__back {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-md);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-dim);
  transition: all 0.3s var(--transition);
}

.article__back:hover {
  color: var(--color-accent-cyan);
  transform: translateX(-4px);
}

@media (max-width: 768px) {
  .article__title {
    font-size: 1.75rem;
  }

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

  .article__body {
    font-size: 1rem;
  }
}
/* File: assets/css/style.css （末尾に追記） */

/* ============================================
   Product Hero Mockup
============================================ */
.product-hero {
  position: relative;
  padding: var(--space-xl) 0 var(--space-lg);
  overflow: hidden;
}

.product-hero__bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at center top, rgba(0, 229, 255, 0.08), transparent 70%);
  z-index: 0;
}

.product-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
}

.product-hero__mockup {
  margin-top: var(--space-lg);
  position: relative;
  z-index: 1;
  perspective: 1500px;
}

.product-hero__mockup-frame {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow:
    0 30px 80px rgba(0, 0, 0, 0.5),
    0 0 80px rgba(0, 229, 255, 0.1);
  transition: transform 0.6s var(--transition);
}

.product-hero__mockup:hover .product-hero__mockup-frame {
  transform: rotateX(2deg) translateY(-8px);
}

.product-hero__mockup-frame img {
  width: 100%;
  height: auto;
  display: block;
}

.product-hero__mockup-placeholder {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, var(--color-bg-alt), rgba(124, 58, 237, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-sm);
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}

.product-hero__mockup-placeholder::before {
  content: "▶";
  font-size: 3rem;
  color: var(--color-accent-cyan);
  opacity: 0.6;
}

/* ============================================
   Screen Tour (画面ツアー)
============================================ */
.screen-tour {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
  margin-bottom: var(--space-xl);
}

.screen-tour:nth-child(even) {
  direction: rtl;
}

.screen-tour:nth-child(even) > * {
  direction: ltr;
}

.screen-tour__text {
  padding: var(--space-md) 0;
}

.screen-tour__step {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-accent-cyan);
  letter-spacing: 0.15em;
  margin-bottom: var(--space-sm);
  text-transform: uppercase;
}

.screen-tour__title {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  margin-bottom: var(--space-sm);
  line-height: 1.3;
}

.screen-tour__description {
  color: var(--color-text-dim);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.screen-tour__highlights {
  list-style: none;
  padding: 0;
}

.screen-tour__highlights li {
  position: relative;
  padding-left: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  font-size: 0.95rem;
}

.screen-tour__highlights li::before {
  content: "▸";
  position: absolute;
  left: 0;
  color: var(--color-accent-cyan);
  font-weight: 700;
}

.screen-tour__image {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
  transition: all 0.4s var(--transition);
  cursor: zoom-in;
}

.screen-tour__image:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 80px rgba(0, 229, 255, 0.15);
  border-color: var(--color-accent-cyan);
}

.screen-tour__image img {
  width: 100%;
  height: auto;
  display: block;
}

.screen-tour__placeholder {
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-xs);
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  background:
    linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(0, 229, 255, 0.05)),
    repeating-linear-gradient(45deg, transparent, transparent 10px, rgba(255, 255, 255, 0.02) 10px, rgba(255, 255, 255, 0.02) 20px);
}

.screen-tour__placeholder-icon {
  font-size: 2.5rem;
  opacity: 0.5;
}

.screen-tour__placeholder-label {
  padding: 4px 12px;
  border: 1px dashed var(--color-border);
  border-radius: var(--radius-sm);
  background: rgba(0, 0, 0, 0.3);
}

/* ============================================
   Feature Tabs
============================================ */
.feature-tabs {
  margin-top: var(--space-lg);
}

.feature-tabs__nav {
  display: flex;
  gap: var(--space-xs);
  margin-bottom: var(--space-md);
  border-bottom: 1px solid var(--color-border);
  overflow-x: auto;
  scrollbar-width: thin;
  -webkit-overflow-scrolling: touch;
}

.feature-tabs__tab {
  padding: var(--space-sm) var(--space-md);
  background: none;
  border: none;
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
  transition: all 0.3s var(--transition);
  text-transform: uppercase;
}

.feature-tabs__tab:hover {
  color: var(--color-text);
}

.feature-tabs__tab.is-active {
  color: var(--color-accent-cyan);
  border-bottom-color: var(--color-accent-cyan);
}

.feature-tabs__panel {
  display: none;
  animation: fade-in-up 0.5s var(--transition);
}

.feature-tabs__panel.is-active {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-lg);
  align-items: center;
}

@keyframes fade-in-up {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

.feature-tabs__image {
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  background: var(--color-bg-alt);
  cursor: zoom-in;
}

.feature-tabs__image img {
  width: 100%;
  display: block;
}

.feature-tabs__placeholder {
  aspect-ratio: 16/10;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(0, 229, 255, 0.05));
  color: var(--color-text-dim);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
}

.feature-tabs__content h3 {
  font-size: 1.75rem;
  margin-bottom: var(--space-sm);
}

.feature-tabs__content p {
  color: var(--color-text-dim);
  line-height: 1.8;
  margin-bottom: var(--space-md);
}

.feature-tabs__feature-list {
  list-style: none;
  padding: 0;
}

.feature-tabs__feature-list li {
  padding: 0.75rem 0;
  padding-left: 2rem;
  position: relative;
  border-bottom: 1px solid var(--color-border);
  font-size: 0.95rem;
}

.feature-tabs__feature-list li:last-child {
  border-bottom: none;
}

.feature-tabs__feature-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent-green);
  font-weight: 700;
  font-size: 1.1rem;
}

/* ============================================
   Use Case Cards
============================================ */
.usecase-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-md);
}

.usecase {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all 0.4s var(--transition);
}

.usecase:hover {
  border-color: var(--color-accent-cyan);
  transform: translateY(-4px);
}

.usecase__image {
  aspect-ratio: 16/10;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.1), rgba(0, 229, 255, 0.05));
  overflow: hidden;
}

.usecase__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.usecase__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text-dim);
  letter-spacing: 0.1em;
}

.usecase__content {
  padding: var(--space-md);
}

.usecase__category {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-accent-cyan);
  letter-spacing: 0.1em;
  margin-bottom: var(--space-xs);
  text-transform: uppercase;
}

.usecase__title {
  font-size: 1.25rem;
  margin-bottom: var(--space-sm);
}

.usecase__description {
  color: var(--color-text-dim);
  font-size: 0.95rem;
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.usecase__stat {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

.usecase__stat-value {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.usecase__stat-label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ============================================
   Demo Video Section
============================================ */
.demo-video {
  position: relative;
  max-width: 1000px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  aspect-ratio: 16/9;
  background: var(--color-bg-alt);
  cursor: pointer;
  transition: all 0.4s var(--transition);
}

.demo-video:hover {
  border-color: var(--color-accent-cyan);
  transform: scale(1.01);
}

.demo-video__placeholder {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: var(--space-md);
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.15), rgba(0, 229, 255, 0.08));
}

.demo-video__play-button {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--color-accent-cyan);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  color: var(--color-bg);
  box-shadow: 0 10px 40px rgba(0, 229, 255, 0.4);
  animation: play-pulse 2s infinite;
}

@keyframes play-pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 10px 40px rgba(0, 229, 255, 0.4); }
  50% { transform: scale(1.05); box-shadow: 0 15px 50px rgba(0, 229, 255, 0.6); }
}

.demo-video__label {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--color-text);
  letter-spacing: 0.15em;
}

/* ============================================
   Stats Comparison
============================================ */
.stats-comparison {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.stat-card {
  text-align: center;
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.4s var(--transition);
}

.stat-card:hover {
  border-color: var(--color-accent-cyan);
  transform: translateY(-4px);
}

.stat-card__value {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 700;
  background: linear-gradient(135deg, var(--color-accent-cyan), var(--color-accent-violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: var(--space-xs);
}

.stat-card__label {
  font-size: 0.95rem;
  color: var(--color-text);
  margin-bottom: var(--space-xs);
}

.stat-card__sublabel {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

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

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

.faq__question {
  width: 100%;
  padding: var(--space-md) 0;
  background: none;
  border: none;
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: 1.05rem;
  text-align: left;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-sm);
  transition: color 0.3s var(--transition);
}

.faq__question:hover {
  color: var(--color-accent-cyan);
}

.faq__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
  transition: all 0.3s var(--transition);
}

.faq__item.is-open .faq__icon {
  background: var(--color-accent-cyan);
  border-color: var(--color-accent-cyan);
  color: var(--color-bg);
  transform: rotate(45deg);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s var(--transition);
}

.faq__item.is-open .faq__answer {
  max-height: 500px;
}

.faq__answer-content {
  padding: 0 0 var(--space-md);
  color: var(--color-text-dim);
  line-height: 1.8;
  font-size: 0.95rem;
}

/* ============================================
   Security Badge Grid
============================================ */
.security-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-md);
}

.security-badge {
  text-align: center;
  padding: var(--space-md);
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  transition: all 0.3s var(--transition);
}

.security-badge:hover {
  border-color: var(--color-accent-cyan);
}

.security-badge__icon {
  font-size: 2.5rem;
  margin-bottom: var(--space-sm);
}

.security-badge__title {
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: var(--space-xs);
}

.security-badge__description {
  font-size: 0.85rem;
  color: var(--color-text-dim);
  line-height: 1.6;
}

/* ============================================
   Coming Soon Badge
============================================ */
.coming-soon {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 4px 12px;
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid var(--color-accent-violet);
  border-radius: 100px;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--color-accent-violet);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--space-sm);
}

.coming-soon::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--color-accent-violet);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

/* ============================================
   Responsive
============================================ */
@media (max-width: 768px) {
  .screen-tour {
    grid-template-columns: 1fr;
    gap: var(--space-md);
  }

  .screen-tour:nth-child(even) {
    direction: ltr;
  }

  .feature-tabs__panel.is-active {
    grid-template-columns: 1fr;
  }

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

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

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

  .demo-video__play-button {
    width: 60px;
    height: 60px;
    font-size: 1.5rem;
  }
}