:root {
    /* Color Palette — Digima EXPO トンマナ */
    --bg-main: #ffffff;
    --bg-light: #f3f9fe;
    --bg-card: #ffffff;
    --accent-blue: #009df0;
    --accent-blue-deep: #005aca;
    --accent-gold: #f06200;
    --text-primary: #333333;
    --text-secondary: #666666;
    --text-muted: #999999;
    --border-light: #e5edf5;
    --border-soft: rgba(0, 90, 202, 0.12);

    /* Gradients */
    --gradient-blue: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-deep) 100%);
    --gradient-light: linear-gradient(180deg, #ffffff 0%, #f3f9fe 100%);

    /* Typography */
    --font-main: -apple-system, BlinkMacSystemFont, 'Hiragino Kaku Gothic ProN', 'Yu Gothic', 'Meiryo', sans-serif;
}

.glass {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    box-shadow: 0 4px 20px rgba(0, 90, 202, 0.06);
    border-radius: 16px;
}

.text-gradient {
    background: linear-gradient(135deg, var(--accent-blue) 0%, var(--accent-blue-deep) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.badge {
    display: inline-block;
    padding: 6px 16px;
    background: rgba(0, 157, 240, 0.1);
    border: 1px solid rgba(0, 157, 240, 0.25);
    border-radius: 50px;
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 20px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

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

h1,
h2,
h3 {
    font-weight: 700;
    line-height: 1.3;
    color: var(--text-primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 16px 32px;
    border-radius: 50px;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    text-align: center;
}

.btn-primary {
    background: var(--gradient-blue);
    color: #ffffff;
    box-shadow: 0 6px 20px rgba(0, 157, 240, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(0, 157, 240, 0.45);
}

/* Header Styles */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 15px 0;
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-light);
    transition: padding 0.3s ease, box-shadow 0.3s ease, background-color 0.3s ease;
    will-change: transform;
}

header.scrolled {
    padding: 10px 0;
    background: rgba(255, 255, 255, 0.98);
    box-shadow: 0 2px 12px rgba(0, 90, 202, 0.08);
}

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

.logo-text {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-blue-deep);
}

.logo a {
    display: inline-block;
    line-height: 0;
}

.logo-img {
    height: 36px;
    width: auto;
    display: block;
}

.nav-links {
    display: flex;
    gap: 30px;
}

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

.nav-links a:hover {
    color: var(--accent-blue);
}

/* Hero Portal & Tabs */
#hero-portal {
    position: relative;
    padding-top: 100px;
}

.tab-nav-wrapper {
    position: relative;
    width: 100%;
    margin-bottom: 40px;
}

.tab-nav {
    display: flex;
    justify-content: center;
    gap: 10px;
    padding: 8px;
    max-width: fit-content;
    margin: 0 auto;
    border-radius: 50px;
    background: var(--bg-light);
    border: 1px solid var(--border-light);
    box-shadow: 0 2px 10px rgba(0, 90, 202, 0.05);
}

.tab-btn {
    padding: 12px 28px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-weight: 700;
    cursor: pointer;
    border-radius: 50px;
    transition: all 0.3s ease;
}

.tab-btn:hover {
    color: var(--accent-blue);
}

.tab-btn.active {
    background: var(--gradient-blue);
    color: #ffffff;
    box-shadow: 0 4px 14px rgba(0, 157, 240, 0.3);
}

.tab-content-wrapper {
    position: relative;
}

.tab-panel {
    display: none;
    width: 100%;
}

.tab-panel.active {
    display: block;
}

.hero-section {
    position: relative;
    min-height: 480px;
    padding: 60px 0 80px;
    display: flex;
    align-items: center;
    overflow: hidden;
}

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

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-bg::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(100deg, rgba(255, 255, 255, 0.94) 0%, rgba(243, 249, 254, 0.72) 45%, rgba(255, 255, 255, 0.15) 100%);
    z-index: 1;
}

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

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

#hero-portal h1 {
    font-size: 3.6rem;
    margin-bottom: 25px;
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .tab-nav {
        flex-direction: column;
        border-radius: 12px;
        width: 100%;
    }

    .tab-btn {
        width: 100%;
        padding: 10px;
    }

    #hero-portal h1 {
        font-size: 2.5rem;
    }

    .tab-nav-wrapper {
        top: 100px;
        padding: 0 20px;
    }
}

.hero-subtext {
    font-size: 1.2rem;
    color: var(--text-primary);
    font-weight: 700;
    margin-bottom: 30px;
    max-width: 600px;
}

.hero-tags {
    display: flex;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
}

.hero-tags span {
    font-size: 0.85rem;
    color: var(--accent-blue-deep);
    background: rgba(0, 157, 240, 0.1);
    border: 1px solid rgba(0, 157, 240, 0.2);
    padding: 5px 14px;
    border-radius: 50px;
    font-weight: 700;
}

.btn-large {
    padding: 20px 45px;
    font-size: 1.1rem;
}

/* Ticker (Brand Wall) */
#brand-wall {
    padding: 40px 0;
    background: var(--bg-light);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.ticker-label {
    text-align: center;
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 20px;
    letter-spacing: 0.05em;
}

.ticker-wrapper {
    overflow: hidden;
}

.ticker {
    display: flex;
    gap: 50px;
    white-space: nowrap;
    animation: ticker 30s linear infinite;
}

.ticker-item {
    font-weight: 700;
    font-size: 1.15rem;
    color: var(--accent-blue-deep);
    opacity: 0.45;
}

@keyframes ticker {
    0% {
        transform: translateX(0);
    }

    100% {
        transform: translateX(-50%);
    }
}

/* Section Title */
.section-title {
    text-align: center;
    font-size: 2.4rem;
    margin-bottom: 60px;
    color: var(--text-primary);
}

/* Stats Section */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.stats-card {
    padding: 40px;
    text-align: center;
}

.stats-label {
    display: block;
    margin-bottom: 15px;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.stats-value {
    font-size: 2.8rem;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 10px;
    white-space: nowrap;
}

.stats-value small {
    font-size: 1.2rem;
    margin-left: 5px;
}

.stats-num-1 {
    font-size: 3.2rem;
    font-weight: 700;
    color: var(--accent-gold);
    white-space: nowrap;
}

.stats-num-1 small {
    font-size: 1.2rem;
    margin-left: 5px;
}

.stats-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 8px;
}

/* Alternating section backgrounds */
.results-section {
    background: var(--bg-main);
}

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

.audience-section {
    background: var(--bg-main);
}

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

#strengths {
    background: var(--bg-main);
}

#flow {
    background: var(--bg-light);
}

.schedule-section {
    background: var(--bg-main);
    padding: 80px 0;
}

/* Schedule Section */
.schedule-list {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.schedule-item {
    display: flex;
    padding: 30px;
    align-items: center;
    gap: 40px;
}

.schedule-date {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent-blue);
    min-width: 250px;
}

.schedule-info h3 {
    font-size: 1.15rem;
    margin-bottom: 6px;
}

.schedule-info p {
    color: var(--text-secondary);
    margin-bottom: 4px;
}

.schedule-info small {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* Contact (HubSpot) */
.contact-section {
    padding: 100px 0;
    background: var(--bg-light);
}

.contact-wrapper {
    padding: 60px;
}

.contact-header {
    text-align: center;
    margin-bottom: 40px;
}

.contact-header .section-title {
    margin-bottom: 16px;
}

.contact-lead {
    color: var(--text-secondary);
    font-size: 0.95rem;
    max-width: 720px;
    margin: 0 auto;
}

.hubspot-form-wrapper {
    max-width: 720px;
    margin: 0 auto;
}

/* Footer */
footer {
    padding: 60px 0 30px;
    background: var(--bg-light);
    border-top: 1px solid var(--border-light);
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

.footer-logo {
    line-height: 0;
}

.footer-logo-img {
    height: 40px;
    width: auto;
    display: block;
}

.footer-links {
    display: flex;
    gap: 30px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

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

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

/* Responsive */
@media (max-width: 768px) {
    #hero h1 {
        font-size: 2.5rem;
    }

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

    .schedule-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 10px;
    }

    .nav-links {
        display: none;
    }

    .contact-wrapper {
        padding: 30px 20px;
    }
}

/* Features Section */
.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
}

.feature-card {
    padding: 36px 30px;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 32px rgba(0, 90, 202, 0.12);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin-bottom: 20px;
    background: rgba(0, 157, 240, 0.1);
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.9rem;
    line-height: 1;
}

.feature-card h3 {
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Audience Section */
.audience-inner {
    padding: 60px;
}

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

.audience-item h4 {
    font-size: 1.1rem;
    margin-bottom: 15px;
    color: var(--text-primary);
    border-left: 3px solid var(--accent-blue);
    padding-left: 15px;
}

.audience-item p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Exhibitor Voices */
.voices-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.voice-card {
    padding: 40px;
}

.voice-content p {
    font-size: 1.05rem;
    line-height: 1.9;
    margin-bottom: 25px;
    color: var(--text-primary);
}

.voice-author {
    font-weight: 700;
    color: var(--accent-blue-deep);
    display: block;
    text-align: right;
}

/* Why Choose Us (Strengths) */
.strengths-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.strength-item {
    padding: 34px 28px;
    text-align: left;
    transition: all 0.3s ease;
}

.strength-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent-blue);
    box-shadow: 0 12px 32px rgba(0, 90, 202, 0.14);
}

.strength-num {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent-blue);
    opacity: 0.35;
    display: block;
    margin-bottom: 10px;
    font-family: serif;
}

.strength-item h3 {
    font-size: 1.15rem;
    margin-bottom: 15px;
}

.strength-item p {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

/* Exhibition Flow */
.flow-wrapper {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    position: relative;
}

.flow-step {
    text-align: center;
    position: relative;
}

.step-icon {
    width: 60px;
    height: 60px;
    background: var(--gradient-blue);
    color: #ffffff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
    box-shadow: 0 6px 18px rgba(0, 157, 240, 0.3);
}

.flow-step h4 {
    margin-bottom: 10px;
    color: var(--text-primary);
}

.flow-step p {
    font-size: 0.88rem;
    color: var(--text-secondary);
}

@media (max-width: 992px) {

    .voices-grid,
    .strengths-grid,
    .flow-wrapper {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 992px) {

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