/* =============================================
   THE SYNERGY - Official Website Stylesheet
   Mobile First Design
   ============================================= */

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

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --accent: #c8a84e;
    --accent-hover: #d4b85c;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #666666;
    --border: #2a2a2a;
    --header-height: 60px;
    --max-width: 1200px;
    --transition: 0.3s ease;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: 'Noto Sans JP', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.8;
    overflow-x: hidden;
    -webkit-text-size-adjust: 100%;
}

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

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

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

.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 16px;
}

/* --- Header (Mobile Default) --- */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: var(--header-height);
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    z-index: 1000;
    transition: background var(--transition);
}

.header-inner {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 16px;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.header-logo img {
    height: 32px;
    filter: brightness(0) invert(1);
}

/* Nav links hidden on mobile */
.nav-links {
    display: none;
    list-style: none;
    gap: 32px;
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    position: relative;
    padding-bottom: 4px;
}

.nav-links a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--accent);
    transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
    width: 100%;
}

/* Hamburger (visible on mobile) */
.hamburger {
    display: flex;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 4px;
    z-index: 1001;
}

.hamburger span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition);
}

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* Mobile Menu */
.mobile-menu {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    height: 100dvh;
    background: rgba(10, 10, 10, 0.98);
    z-index: 999;
    justify-content: center;
    align-items: center;
}

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

.mobile-menu-links {
    list-style: none;
    text-align: center;
}

.mobile-menu-links li {
    margin-bottom: 28px;
}

.mobile-menu-links a {
    color: var(--text-primary);
    font-size: 1.25rem;
    letter-spacing: 0.1em;
}

/* --- Hero Section (Mobile) --- */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--header-height) + 20px) 16px 40px;
    background: linear-gradient(180deg, var(--bg-primary) 0%, #0d0d0d 50%, var(--bg-primary) 100%);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, rgba(200, 168, 78, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-logo {
    width: 240px;
    max-width: 70vw;
    margin-bottom: 20px;
    filter: brightness(0) invert(1);
}

.hero-tagline {
    font-size: 0.8rem;
    color: var(--text-secondary);
    letter-spacing: 0.12em;
    margin-bottom: 16px;
}

.hero-description {
    font-size: 0.85rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 32px;
    line-height: 2;
    padding: 0 8px;
}

.hero-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 28px;
    background: transparent;
    border: 1px solid var(--accent);
    color: var(--accent);
    font-size: 0.8rem;
    letter-spacing: 0.1em;
    transition: all var(--transition);
}

.hero-cta:hover {
    background: var(--accent);
    color: var(--bg-primary);
}

/* --- Section Common (Mobile) --- */
.section {
    padding: 56px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 36px;
}

.section-label {
    display: inline-block;
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.2em;
    text-transform: uppercase;
    margin-bottom: 10px;
}

.section-title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.05em;
    margin-bottom: 14px;
}

.section-divider {
    width: 40px;
    height: 1px;
    background: var(--accent);
    margin: 0 auto;
}

/* --- Concept Visual Section (Mobile) --- */
.concept-visual {
    position: relative;
    padding: 64px 0;
    overflow: hidden;
}

.concept-visual-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.12;
    z-index: 0;
}

.concept-visual-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, var(--bg-primary) 0%, rgba(10,10,10,0.92) 30%, rgba(10,10,10,0.92) 70%, var(--bg-primary) 100%);
    z-index: 1;
}

.concept-visual .container {
    position: relative;
    z-index: 2;
}

.concept-catchcopy {
    text-align: center;
    margin-bottom: 48px;
}

.concept-lead {
    font-size: 1.6rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    margin: 16px 0 16px;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.concept-sub {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 2;
    letter-spacing: 0.04em;
}

.concept-pillars {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 40px;
}

.concept-pillar {
    background: rgba(26, 26, 26, 0.7);
    border: 1px solid var(--border);
    padding: 28px 20px;
    text-align: center;
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    transition: border-color var(--transition);
}

.concept-pillar:hover {
    border-color: var(--accent);
}

.pillar-number {
    font-family: 'Cormorant Garamond', serif;
    font-size: 2rem;
    font-weight: 600;
    color: var(--accent);
    line-height: 1;
    display: block;
    margin-bottom: 12px;
}

.pillar-title {
    font-size: 1.05rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    margin-bottom: 12px;
}

.pillar-line {
    width: 24px;
    height: 1px;
    background: var(--accent);
    margin: 0 auto 14px;
}

.concept-pillar p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

.concept-link {
    text-align: center;
}

/* --- Concept Text (about page, Mobile) --- */
.concept-text {
    max-width: 800px;
    margin: 0 auto;
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 2.2;
    text-align: left;
}

/* --- Episode Cards (Mobile: 1 column) --- */
.episode-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.episode-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    overflow: hidden;
    transition: border-color var(--transition), transform var(--transition);
}

.episode-card:hover {
    border-color: var(--accent);
}

.episode-card .video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: #000;
}

.episode-card .video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.episode-card .video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a, #111);
    color: var(--text-muted);
    font-size: 0.875rem;
}

.episode-card-body {
    padding: 16px;
}

.episode-card-body .episode-number {
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 6px;
    display: block;
}

.episode-card-body h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.5;
}

.episode-card-body p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.7;
}

/* --- Episodes Page Full List (Mobile: stacked) --- */
.episodes-list {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.episode-item {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 16px;
}

.episode-item .video-wrapper {
    position: relative;
    width: 100%;
    padding-top: 56.25%;
    background: #000;
}

.episode-item .video-wrapper iframe,
.episode-item .video-wrapper .video-placeholder {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: none;
}

.episode-item .video-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1a1a1a, #111);
    color: var(--text-muted);
}

.episode-info .episode-number {
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 6px;
    display: block;
}

.episode-info h3 {
    font-size: 1.05rem;
    margin-bottom: 8px;
}

.episode-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* --- Host Section (Mobile: stacked) --- */
.host-section {
    background: var(--bg-secondary);
}

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

.host-image {
    width: 200px;
    margin: 0 auto;
    aspect-ratio: 3 / 4;
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

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

.host-info h3 {
    font-size: 1.3rem;
    margin-bottom: 4px;
}

.host-info .host-name-en {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.host-info .host-title {
    font-size: 0.825rem;
    color: var(--accent);
    margin-bottom: 16px;
}

.host-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 12px;
}

.host-detail-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.85rem;
    color: var(--accent);
    border-bottom: 1px solid transparent;
    transition: border-color var(--transition);
}

.host-detail-link:hover {
    border-bottom-color: var(--accent);
}

/* --- About Page (Mobile) --- */
.about-concept {
    max-width: 800px;
    margin: 0 auto 40px;
}

.about-concept p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 2.2;
    margin-bottom: 16px;
}

/* About Hero */
.about-hero {
    position: relative;
    min-height: 75vh;
    min-height: 75dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--header-height) + 20px) 16px 40px;
    overflow: hidden;
}

.about-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.about-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10,10,10,0.5) 0%, rgba(10,10,10,0.75) 60%, var(--bg-primary) 100%);
    z-index: 1;
}

.about-hero-content {
    position: relative;
    z-index: 2;
}

.about-hero-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.8;
    margin: 16px 0 20px;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-hero-sub {
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.25em;
    font-weight: 500;
}

/* About Concept Lead */
.about-concept-lead {
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
}

.about-concept-catch {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.6;
    margin: 16px 0;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.about-concept-intro {
    font-size: 0.875rem;
    color: var(--text-secondary);
    line-height: 2.2;
    max-width: 640px;
    margin: 0 auto;
}

/* About Features (alternating image + text rows) */
.about-features {
    padding: 40px 0 56px;
}

.about-feature-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    align-items: center;
    margin-bottom: 40px;
}

.about-feature-row:last-child {
    margin-bottom: 0;
}

.about-feature-img {
    width: 100%;
    aspect-ratio: 16 / 10;
    overflow: hidden;
    border: 1px solid var(--border);
}

.about-feature-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.about-feature-row:hover .about-feature-img img {
    transform: scale(1.03);
}

.about-feature-text {
    padding: 0 4px;
}

.about-feature-text .pillar-number {
    margin-bottom: 12px;
}

.about-feature-text h3 {
    font-size: 1.1rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    line-height: 1.7;
    margin-bottom: 16px;
}

.about-feature-text p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 2.2;
}

.profile-section {
    background: var(--bg-secondary);
}

.profile-card {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: start;
    margin-bottom: 40px;
}

.profile-image {
    width: 200px;
    margin: 0 auto;
    aspect-ratio: 3 / 4;
    background: var(--bg-card);
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-size: 0.875rem;
    overflow: hidden;
}

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

.profile-detail h3 {
    font-size: 1.4rem;
    margin-bottom: 4px;
}

.profile-detail .name-en {
    font-size: 0.75rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.profile-detail .title {
    font-size: 0.85rem;
    color: var(--accent);
    margin-bottom: 20px;
}

.profile-detail p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 2;
    margin-bottom: 12px;
}

.career-list {
    list-style: none;
    border-left: 2px solid var(--accent);
    padding-left: 16px;
    margin: 20px 0;
}

.career-list li {
    position: relative;
    font-size: 0.825rem;
    color: var(--text-secondary);
    margin-bottom: 14px;
    padding-left: 10px;
}

.career-list li::before {
    content: '';
    position: absolute;
    left: -21px;
    top: 10px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
}

.career-list .year {
    color: var(--accent);
    font-weight: 600;
    margin-right: 6px;
    display: block;
}

/* Company Info (Mobile) */
.company-info {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 20px;
    margin-top: 40px;
}

.company-info h3 {
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.company-table {
    width: 100%;
    border-collapse: collapse;
}

.company-table tr {
    border-bottom: 1px solid var(--border);
}

.company-table th,
.company-table td {
    padding: 10px 8px;
    font-size: 0.825rem;
    text-align: left;
    vertical-align: top;
}

.company-table th {
    color: var(--accent);
    font-weight: 500;
    display: block;
    padding-bottom: 2px;
}

.company-table td {
    color: var(--text-secondary);
    display: block;
    padding-top: 0;
    padding-bottom: 12px;
}

/* Business List (Mobile: 1 column) */
.business-list {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    margin-top: 32px;
}

.business-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    padding: 20px;
    transition: border-color var(--transition);
}

.business-card:hover {
    border-color: var(--accent);
}

.business-card h4 {
    font-size: 0.9rem;
    color: var(--accent);
    margin-bottom: 8px;
}

.business-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --- Event Hero (Mobile) --- */
.event-hero {
    position: relative;
    min-height: 75vh;
    min-height: 75dvh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: calc(var(--header-height) + 20px) 16px 40px;
    overflow: hidden;
}

.event-hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.event-hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10,10,10,0.5) 0%, rgba(10,10,10,0.75) 60%, var(--bg-primary) 100%);
    z-index: 1;
}

.event-hero-content {
    position: relative;
    z-index: 2;
}

.event-hero-title {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    line-height: 1.8;
    margin: 16px 0 20px;
    background: linear-gradient(135deg, #ffffff 30%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.event-hero-sub {
    font-size: 0.8rem;
    color: var(--accent);
    letter-spacing: 0.25em;
    font-weight: 500;
}

/* --- Event Concept (Mobile) --- */
.event-concept {
    max-width: 720px;
    margin: 0 auto;
}

.event-concept-lead {
    margin-bottom: 28px;
    text-align: center;
}

.event-concept-catch {
    font-size: 1.15rem;
    font-weight: 700;
    line-height: 2;
    letter-spacing: 0.06em;
    color: var(--text-primary);
}

.event-concept-body p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 2.2;
    margin-bottom: 12px;
    text-align: center;
}

.sp-only {
    display: inline;
}

/* --- Online vs Offline Compare (Mobile) --- */
.event-compare {
    padding: 16px 0 56px;
}

.compare-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 12px;
    align-items: center;
}

.compare-card {
    position: relative;
    min-height: 200px;
    display: flex;
    align-items: flex-end;
    overflow: hidden;
    border: 1px solid var(--border);
}

.compare-card-visual {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    z-index: 0;
}

.compare-card-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10,10,10,0.3) 0%, rgba(10,10,10,0.85) 100%);
    z-index: 1;
}

.compare-card-content {
    position: relative;
    z-index: 2;
    padding: 24px 20px;
    width: 100%;
}

.compare-label {
    font-size: 0.65rem;
    color: var(--text-muted);
    letter-spacing: 0.2em;
    display: block;
    margin-bottom: 6px;
}

.compare-card-content h3 {
    font-size: 1.1rem;
    margin-bottom: 8px;
}

.compare-card-content p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.8;
}

.compare-card-highlight {
    border-color: var(--accent);
}

.compare-card-highlight .compare-label {
    color: var(--accent);
}

.compare-arrow {
    text-align: center;
    padding: 4px 0;
}

.compare-arrow-icon {
    font-size: 1.5rem;
    color: var(--accent);
    transform: rotate(90deg);
    display: inline-block;
}

/* --- Event Features (Mobile) --- */
.event-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.event-feature {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 28px 20px;
    text-align: center;
    transition: border-color var(--transition);
}

.event-feature:hover {
    border-color: var(--accent);
}

.event-feature-icon {
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    border: 1px solid var(--accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.feature-icon-inner {
    font-family: 'Cormorant Garamond', serif;
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--accent);
}

.event-feature h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    letter-spacing: 0.04em;
}

.event-feature p {
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.9;
}

/* --- Events Page (Mobile: 1 column) --- */
.events-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 16px;
}

.event-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 20px;
    transition: border-color var(--transition), transform var(--transition);
}

.event-card:hover {
    border-color: var(--accent);
}

.event-card .event-date {
    font-size: 0.7rem;
    color: var(--accent);
    letter-spacing: 0.1em;
    margin-bottom: 6px;
    display: block;
}

.event-card .event-tag {
    display: inline-block;
    font-size: 0.65rem;
    padding: 2px 8px;
    border: 1px solid var(--accent);
    color: var(--accent);
    letter-spacing: 0.05em;
    margin-bottom: 10px;
}

.event-card h3 {
    font-size: 1rem;
    margin-bottom: 10px;
    line-height: 1.5;
}

.event-card p {
    font-size: 0.825rem;
    color: var(--text-secondary);
    line-height: 1.8;
    margin-bottom: 12px;
}

.event-card .event-meta {
    font-size: 0.775rem;
    color: var(--text-muted);
}

.event-card .event-meta span {
    display: block;
    margin-bottom: 4px;
}

.event-status {
    display: inline-block;
    font-size: 0.7rem;
    padding: 4px 10px;
    margin-top: 10px;
    letter-spacing: 0.05em;
}

.event-status.upcoming {
    background: var(--accent);
    color: var(--bg-primary);
}

.event-status.ended {
    background: var(--text-muted);
    color: var(--bg-primary);
}

.no-events {
    text-align: center;
    padding: 48px 16px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* --- Contact Page (Mobile) --- */
.contact-intro {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 28px;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border);
    padding: 12px;
}

.form-wrapper iframe {
    width: 100%;
    min-height: 600px;
    border: none;
}

/* --- CTA Section (Mobile) --- */
.cta-section {
    text-align: center;
    padding: 48px 0;
    border-top: 1px solid var(--border);
}

.cta-section p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
}

/* --- Footer (Mobile: stacked) --- */
.footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 40px 0 24px;
}

.footer-inner {
    display: grid;
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 28px;
}

.footer-logo img {
    height: 28px;
    filter: brightness(0) invert(1);
    margin-bottom: 8px;
}

.footer-logo p {
    font-size: 0.75rem;
    color: var(--text-muted);
    line-height: 1.7;
}

.footer-nav h4,
.footer-sns h4 {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.1em;
    margin-bottom: 12px;
}

.footer-nav ul {
    list-style: none;
}

.footer-nav li {
    margin-bottom: 8px;
}

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

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

.footer-sns-links {
    display: flex;
    gap: 12px;
}

.footer-sns-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    border: 1px solid var(--border);
    color: var(--text-muted);
    font-size: 0.75rem;
    transition: all var(--transition);
}

.footer-sns-links a:hover {
    border-color: var(--accent);
    color: var(--accent);
}

.footer-bottom {
    text-align: center;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    font-size: 0.7rem;
    color: var(--text-muted);
    letter-spacing: 0.05em;
}

/* --- Page Header (Mobile) --- */
.page-header {
    padding: calc(var(--header-height) + 40px) 0 40px;
    text-align: center;
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
}

.page-header h1 {
    font-size: 1.5rem;
    letter-spacing: 0.1em;
    margin-bottom: 6px;
}

.page-header .page-subtitle {
    font-size: 0.775rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
}

/* --- Hero Video Background --- */
.hero-video {
    position: absolute;
    top: 50%;
    left: 50%;
    min-width: 100%;
    min-height: 100%;
    width: auto;
    height: auto;
    transform: translate(-50%, -50%);
    object-fit: cover;
    z-index: 0;
    opacity: 0.3;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, rgba(10,10,10,0.4) 0%, rgba(10,10,10,0.6) 50%, rgba(10,10,10,0.9) 100%);
    z-index: 0;
}

/* --- Hero Background Image (fallback) --- */
.hero-bg-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    opacity: 0.15;
    z-index: 0;
}

/* --- Visual Banner (Mobile) --- */
.visual-banner {
    position: relative;
    min-height: 240px;
    display: flex;
    align-items: center;
    justify-content: center;
    background-size: cover;
    background-position: center;
    background-attachment: scroll;
    overflow: hidden;
}

.visual-banner-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 10, 0.7);
    z-index: 1;
}

.visual-banner-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 40px 20px;
}

.visual-banner-quote {
    font-size: 0.9rem;
    color: var(--text-primary);
    line-height: 2.2;
    letter-spacing: 0.08em;
    font-weight: 300;
}

.visual-banner-short {
    min-height: 180px;
}

/* --- Book Section (Mobile) --- */
.book-section {
    background: var(--bg-secondary);
}

.book-content {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
    align-items: center;
}

.book-image {
    max-width: 200px;
    margin: 0 auto;
}

.book-image img {
    width: 100%;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    transition: transform var(--transition);
}

.book-image img:hover {
    transform: scale(1.02);
}

.book-info h3 {
    font-size: 1.2rem;
    margin-bottom: 6px;
}

.book-info .book-subtitle {
    font-size: 0.825rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.book-info .book-meta {
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.book-info .book-badge {
    display: inline-block;
    font-size: 0.7rem;
    padding: 4px 12px;
    background: var(--accent);
    color: var(--bg-primary);
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.book-info p:last-child {
    font-size: 0.85rem;
    color: var(--text-secondary);
    line-height: 2;
}

/* --- Page Header with Visual Background --- */
.page-header-visual {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: calc(var(--header-height) + 48px) 0 48px;
}

.page-header-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(10, 10, 10, 0.78);
    z-index: 1;
}

.page-header-inner {
    position: relative;
    z-index: 2;
}

.page-header-visual h1,
.page-header-visual .page-subtitle {
    position: relative;
    z-index: 2;
}

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

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

/* =============================================
   Tablet (min-width: 768px)
   ============================================= */
@media (min-width: 768px) {
    :root {
        --header-height: 72px;
    }

    .container {
        padding: 0 24px;
    }

    .header-inner {
        padding: 0 24px;
    }

    .header-logo img {
        height: 36px;
    }

    .section {
        padding: 80px 0;
    }

    .section-header {
        margin-bottom: 48px;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .hero-logo {
        width: 320px;
    }

    .hero-tagline {
        font-size: 0.9rem;
    }

    .hero-description {
        font-size: 0.9rem;
    }

    .hero-cta {
        padding: 14px 36px;
        font-size: 0.85rem;
    }

    .episode-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .episode-item {
        grid-template-columns: 1fr 1fr;
        gap: 24px;
        padding: 24px;
    }

    .host-content {
        grid-template-columns: 220px 1fr;
        gap: 32px;
    }

    .host-image {
        width: 100%;
        margin: 0;
    }

    .profile-card {
        grid-template-columns: 240px 1fr;
        gap: 36px;
    }

    .profile-image {
        width: 100%;
        margin: 0;
    }

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

    /* About page tablet */
    .about-hero-title {
        font-size: 2rem;
    }

    .about-hero-sub {
        font-size: 0.85rem;
    }

    .about-concept-catch {
        font-size: 1.75rem;
    }

    .about-concept-intro {
        font-size: 0.925rem;
    }

    .about-feature-row {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
        margin-bottom: 48px;
    }

    .about-feature-reverse {
        direction: rtl;
    }

    .about-feature-reverse > * {
        direction: ltr;
    }

    .about-feature-img {
        aspect-ratio: 4 / 3;
    }

    .about-feature-text h3 {
        font-size: 1.2rem;
    }

    .about-feature-text p {
        font-size: 0.9rem;
    }

    .about-features {
        padding: 56px 0 80px;
    }

    .event-hero-title {
        font-size: 2rem;
    }

    .event-hero-sub {
        font-size: 0.85rem;
    }

    .event-concept-catch {
        font-size: 1.3rem;
    }

    .event-concept-body p {
        font-size: 0.9rem;
    }

    .compare-grid {
        grid-template-columns: 1fr auto 1fr;
        gap: 16px;
    }

    .compare-card {
        min-height: 260px;
    }

    .compare-arrow {
        padding: 0;
    }

    .compare-arrow-icon {
        transform: none;
        font-size: 2rem;
    }

    .event-features {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .sp-only {
        display: none;
    }

    .events-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .event-card {
        padding: 28px;
    }

    .company-info {
        padding: 32px;
    }

    .company-table th {
        display: table-cell;
        width: 140px;
        padding-bottom: 14px;
        white-space: nowrap;
    }

    .company-table td {
        display: table-cell;
        padding-top: 10px;
        padding-bottom: 14px;
    }

    .career-list .year {
        display: inline;
    }

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

    .page-header {
        padding: calc(var(--header-height) + 48px) 0 48px;
    }

    .page-header h1 {
        font-size: 1.75rem;
    }

    .form-wrapper {
        padding: 20px;
    }

    .cta-section {
        padding: 64px 0;
    }

    .concept-visual {
        padding: 80px 0;
    }

    .concept-lead {
        font-size: 2rem;
    }

    .concept-sub {
        font-size: 0.9rem;
    }

    .concept-pillars {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .concept-pillar {
        padding: 32px 20px;
    }

    .visual-banner {
        min-height: 280px;
    }

    .visual-banner-quote {
        font-size: 1.05rem;
    }

    .book-content {
        grid-template-columns: 180px 1fr;
        gap: 36px;
    }

    .book-image {
        margin: 0;
        max-width: 100%;
    }

    .page-header-visual {
        padding: calc(var(--header-height) + 56px) 0 56px;
    }
}

/* =============================================
   Desktop (min-width: 1024px)
   ============================================= */
@media (min-width: 1024px) {
    :root {
        --header-height: 80px;
    }

    .container {
        padding: 0 32px;
    }

    .header-inner {
        padding: 0 32px;
    }

    .header-logo img {
        height: 40px;
    }

    /* Show desktop nav, hide hamburger */
    .nav-links {
        display: flex;
    }

    .hamburger {
        display: none;
    }

    .section {
        padding: 100px 0;
    }

    .section-header {
        margin-bottom: 60px;
    }

    .section-title {
        font-size: 1.75rem;
    }

    .hero::before {
        width: 600px;
        height: 600px;
    }

    .hero-logo {
        width: 420px;
    }

    .hero-tagline {
        font-size: 1rem;
        letter-spacing: 0.15em;
    }

    .hero-description {
        font-size: 0.95rem;
    }

    .hero-cta {
        padding: 14px 40px;
        font-size: 0.875rem;
    }

    .concept-visual {
        padding: 100px 0;
    }

    .concept-catchcopy {
        margin-bottom: 64px;
    }

    .concept-lead {
        font-size: 2.5rem;
        margin: 20px 0 20px;
    }

    .concept-sub {
        font-size: 1rem;
    }

    .concept-pillars {
        gap: 24px;
        margin-bottom: 56px;
    }

    .concept-pillar {
        padding: 40px 24px;
    }

    .pillar-number {
        font-size: 2.4rem;
    }

    .pillar-title {
        font-size: 1.15rem;
    }

    .concept-pillar p {
        font-size: 0.85rem;
    }

    .concept-text {
        text-align: center;
        font-size: 0.95rem;
    }

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

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

    .episode-item {
        gap: 32px;
        padding: 32px;
    }

    .episode-info h3 {
        font-size: 1.25rem;
    }

    .host-content {
        grid-template-columns: 280px 1fr;
        gap: 48px;
    }

    .host-info h3 {
        font-size: 1.5rem;
    }

    .profile-card {
        grid-template-columns: 300px 1fr;
        gap: 48px;
        margin-bottom: 60px;
    }

    .profile-detail h3 {
        font-size: 1.75rem;
    }

    .company-info {
        padding: 40px;
        margin-top: 60px;
    }

    .company-info h3 {
        font-size: 1.25rem;
    }

    .business-list {
        gap: 20px;
        margin-top: 40px;
    }

    /* About page desktop */
    .about-hero {
        min-height: 80vh;
    }

    .about-hero-title {
        font-size: 2.5rem;
    }

    .about-hero-sub {
        font-size: 0.9rem;
        letter-spacing: 0.3em;
    }

    .about-concept-catch {
        font-size: 2rem;
    }

    .about-concept-intro {
        font-size: 1rem;
    }

    .about-features {
        padding: 72px 0 100px;
    }

    .about-feature-row {
        gap: 48px;
        margin-bottom: 64px;
    }

    .about-feature-text h3 {
        font-size: 1.35rem;
    }

    .about-feature-text p {
        font-size: 0.95rem;
    }

    .event-hero {
        min-height: 80vh;
    }

    .event-hero-title {
        font-size: 2.5rem;
    }

    .event-hero-sub {
        font-size: 0.9rem;
        letter-spacing: 0.3em;
    }

    .event-concept-catch {
        font-size: 1.5rem;
    }

    .event-concept-body p {
        font-size: 0.95rem;
    }

    .compare-card {
        min-height: 300px;
    }

    .compare-card-content {
        padding: 32px 28px;
    }

    .compare-card-content h3 {
        font-size: 1.25rem;
    }

    .event-features {
        gap: 24px;
    }

    .event-feature {
        padding: 40px 28px;
    }

    .event-feature h3 {
        font-size: 1.1rem;
    }

    .event-feature p {
        font-size: 0.85rem;
    }

    .event-card {
        padding: 32px;
    }

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

    .footer {
        padding: 60px 0 30px;
    }

    .footer-logo img {
        height: 36px;
    }

    .page-header {
        padding: calc(var(--header-height) + 60px) 0 60px;
    }

    .page-header h1 {
        font-size: 2rem;
    }

    .cta-section {
        padding: 80px 0;
    }

    .visual-banner {
        min-height: 320px;
        background-attachment: fixed;
    }

    .visual-banner-quote {
        font-size: 1.2rem;
        letter-spacing: 0.1em;
    }

    .visual-banner-short {
        min-height: 240px;
    }

    .book-content {
        grid-template-columns: 220px 1fr;
        gap: 48px;
    }

    .book-info h3 {
        font-size: 1.4rem;
    }

    .page-header-visual {
        padding: calc(var(--header-height) + 72px) 0 72px;
    }
}

/* Contact Form */
.contact-intro {
    text-align: center;
    margin-bottom: 48px;
    color: var(--text-secondary);
    line-height: 1.9;
}

.contact-form {
    max-width: 720px;
    margin: 0 auto;
    background: var(--bg-card);
    padding: 48px clamp(20px, 5vw, 56px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 4px;
}

.contact-form .form-row {
    display: flex;
    flex-direction: column;
    margin-bottom: 24px;
}

.contact-form label {
    color: var(--text-primary);
    font-size: 0.92em;
    font-weight: 500;
    margin-bottom: 10px;
    letter-spacing: 0.04em;
}

.contact-form .required {
    color: #d97a7a;
    font-weight: 700;
    margin-left: 2px;
}

.contact-form input[type="text"],
.contact-form input[type="tel"],
.contact-form input[type="email"],
.contact-form textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-primary);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 2px;
    color: var(--text-primary);
    font-family: inherit;
    font-size: 1em;
    line-height: 1.6;
    transition: border-color 0.2s ease, background 0.2s ease;
    box-sizing: border-box;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--accent, #c9a86a);
    background: rgba(255, 255, 255, 0.02);
}

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

.contact-form .form-honeypot {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.contact-form .form-submit {
    text-align: center;
    margin-top: 16px;
}

.contact-form button[type="submit"] {
    cursor: pointer;
    border: none;
    font-family: inherit;
    min-width: 240px;
}

@media (max-width: 600px) {
    .contact-form {
        padding: 32px 20px;
    }
}