@charset "utf-8";

/* PIVOTブランドカラーに基づくカラーパレット */
:root {
    --pivot-magenta: #d946ef;
    --pivot-blue: #3b82f6;
    --pivot-purple: #8b5cf6;
    --primary-gradient: linear-gradient(135deg, #d946ef 0%, #8b5cf6 50%, #3b82f6 100%);
    --secondary-gradient: linear-gradient(135deg, #f3e8ff 0%, #ddd6fe 100%);
    --orange-gradient: linear-gradient(135deg, #ff6b35 0%, #f7931e 100%);
    --text-dark: #1e293b;
    --text-gray: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --shadow-soft: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-medium: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-large: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    font-family: 'Helvetica Neue', Arial, 'Hiragino Sans', 'Yu Gothic UI', Meiryo, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background: var(--bg-light);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Campaign Banner */
.campaign-banner {
    z-index: 100;
    box-shadow: var(--shadow-medium);
    background: var(--bg-white);
    padding: 20px 0;
}

.banner-image {
    width: 100%;
    max-width: 100%;
}

.banner-image img {
    width: 100%;
    height: auto;
    display: block;
    aspect-ratio: 1000 / 500;
    object-fit: contain;
}

/* Hero Section */
.hero-section {
    background: var(--bg-white);
    padding: 60px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--secondary-gradient);
    opacity: 0.3;
    z-index: 1;
}

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

.hero-title {
    font-size: 2.5rem;
    font-weight: bold;
    margin-bottom: 30px;
    color: var(--text-dark);
    line-height: 1.3;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-gray);
    margin-bottom: 40px;
    line-height: 1.8;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
}

.special-text {
    font-size: 1.4rem;
    color: var(--pivot-magenta);
    font-weight: bold;
    margin: 30px 0;
    padding: 20px;
    background: var(--bg-white);
    border-radius: 15px;
    border-left: 5px solid var(--pivot-magenta);
    box-shadow: var(--shadow-soft);
}

.cta-button {
    display: inline-block;
    background: var(--orange-gradient);
    color: white;
    padding: 20px 60px;
    font-size: 1.2rem;
    font-weight: bold;
    text-decoration: none;
    border-radius: 50px;
    box-shadow: var(--shadow-medium);
    animation: pulse 2s infinite;
    margin-top: 50px;
}

.cta-button-large {
    font-size: 1.4rem;
    padding: 25px 80px;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Section Styles */
.section {
    padding: 80px 0;
    background: var(--bg-white);
}

.section:nth-child(even) {
    background: var(--bg-light);
}

.section-title {
    font-size: 2rem;
    font-weight: bold;
    text-align: center;
    margin-bottom: 50px;
    color: var(--text-dark);
}

/* Academy Introduction */
.academy-intro {
    background: var(--bg-white);
    color: var(--text-dark);
    text-align: center;
}

.academy-logo {
    margin: 30px 0;
    display: flex;
    justify-content: center;
}

.academy-logo img {
    max-width: 330px;
    width: 100%;
    height: auto;
    aspect-ratio: 1920 / 310;
    object-fit: contain;
}

.academy-subtitle {
    font-size: 1.8rem;
    margin-bottom: 30px;
    font-weight: 600;
    color: var(--text-dark);
}

.academy-stats {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin: 40px 0;
    flex-wrap: wrap;
}

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

.stat-number {
    font-size: 3rem;
    font-weight: bold;
    display: block;
    margin-bottom: 10px;
    color: var(--pivot-purple);
}

.stat-label {
    font-size: 1.1rem;
    color: var(--text-gray);
}

.academy-description {
    font-size: 1.2rem;
    margin-bottom: 40px;
    color: var(--text-dark);
}

.strengths-title {
    font-size: 1.5rem;
    margin-bottom: 30px;
    font-weight: 600;
    color: var(--text-dark);
}

.strengths-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin-top: 50px;
}

.strengths-grid-bottom {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 600px;
    margin: 30px auto 0;
}

.strength-item {
    background: var(--bg-white);
    padding: 30px 20px;
    border-radius: 15px;
    border: 2px solid #f3e8ff;
    box-shadow: var(--shadow-soft);
    text-align: center;
}

.strength-item h3 {
    font-size: 1.4rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    font-weight: 600;
    line-height: 1.3;
    color: var(--text-dark);
}

.strength-item p {
    line-height: 1.6;
    font-size: 1.1rem;
    text-align: center;
    color: var(--text-gray);
}

.academy-conclusion {
    font-size: 1.3rem;
    margin-top: 40px;
    font-weight: bold;
    line-height: 1.6;
    color: var(--text-dark);
}

/* Gift Section - PIVOTカラーに統一 */
.gift-section {
    background: linear-gradient(135deg, #d946ef 0%, #8b5cf6 50%, #3b82f6 100%) !important;
    text-align: center;
}

.gift-title {
    font-size: 2.5rem;
    color: white;
    margin-bottom: 30px;
    font-weight: bold;
}

.gift-description {
    font-size: 1.2rem;
    margin-bottom: 30px;
    color: rgba(255,255,255,0.9);
    line-height: 1.8;
}

.videos-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    margin: 50px 0;
}

.videos-grid-bottom {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    max-width: 600px;
    margin: 30px auto 0;
}

/* 強化された動画カードデザイン */
.video-item {
    background: linear-gradient(135deg, #ffffff 0%, #f8fafc 30%, #f3e8ff 100%);
    border-radius: 20px;
    box-shadow: 
        0 20px 40px rgba(139, 92, 246, 0.15), 
        0 10px 20px rgba(0, 0, 0, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    opacity: 0;
    transform: translateY(20px);
    overflow: hidden;
    border: 4px solid #7c3aed;
    position: relative;
}

.video-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at top center, rgba(139, 92, 246, 0.05) 0%, transparent 50%);
    pointer-events: none;
}

.video-image {
    width: 100%;
    height: auto;
    background: var(--bg-light);
    margin: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-gray);
    overflow: hidden;
    aspect-ratio: 1280 / 720;
}

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

/* テキスト部分にごく薄い紫の背景を追加 */
.video-content {
    padding: 25px;
    background: rgba(243, 232, 255, 0.3);
    backdrop-filter: blur(10px);
    border-radius: 0 0 16px 16px;
    position: relative;
}

.video-title {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--text-dark);
    line-height: 1.4;
    margin-bottom: 15px;
    text-align: center;
}

.video-description {
    font-size: 1rem;
    color: var(--text-dark);
    opacity: 0.8;
    line-height: 1.6;
    text-align: left;
    margin: 0;
}

.limited-notice {
    color: white;
    padding: 15px 0;
    margin: 10px 0 0;
    font-size: 1.1rem;
    font-weight: bold;
    text-align: center;
}

/* Seminar Section - ヒーローセクションと同じ薄い紫に統一 */
.seminar-section {
    background: var(--secondary-gradient);
}

.seminar-intro {
    text-align: center;
    font-size: 1.1rem;
    margin-bottom: 30px;
    color: var(--text-gray);
    line-height: 1.8;
}

.seminar-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
    margin-top: 40px;
}

.seminar-card {
    background: var(--bg-white);
    border-radius: 15px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    opacity: 0;
    transform: translateY(20px);
    transition: all 0.3s ease;
}

.seminar-card:hover {
    box-shadow: var(--shadow-medium);
}

.seminar-image {
    width: 100%;
    height: auto;
    overflow: hidden;
    background: var(--bg-light);
    aspect-ratio: 1200 / 800;
}

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

.seminar-content {
    padding: 30px;
}

.seminar-date {
    color: var(--pivot-purple);
    font-weight: bold;
    margin-bottom: 15px;
    font-size: 1.4rem;
}

.seminar-title {
    font-size: 1.2rem;
    font-weight: bold;
    margin-bottom: 20px;
    color: var(--text-dark);
    line-height: 1.4;
    min-height: auto;
}

.seminar-button-wrapper {
    text-align: center;
    margin-top: 20px;
}

.seminar-button {
    display: inline-block;
    background: var(--orange-gradient);
    color: white;
    padding: 15px 40px;
    text-decoration: none;
    border-radius: 50px;
    font-weight: bold;
    font-size: 1rem;
    box-shadow: var(--shadow-soft);
    transition: all 0.3s ease;
    width: 80%;
    max-width: 300px;
}

.seminar-button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

/* フッター */
.foot {
    background: var(--text-dark);
    color: white;
    text-align: center;
    padding: 40px 20px;
}

.foot p {
    margin-bottom: 15px;
}

.foot a {
    color: white;
    text-decoration: none;
    margin: 0 15px;
    padding: 8px 15px;
    transition: all 0.3s ease;
}

.foot a:hover {
    background: rgba(255,255,255,0.1);
    border-radius: 5px;
}

.foot .copy {
    font-size: 0.9rem;
    opacity: 0.7;
    margin-top: 20px;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }
    
    .academy-logo img {
        max-width: 250px;
    }
    
    .hero-title {
        font-size: 2rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
    }
    
    .special-text {
        font-size: 1.2rem;
        padding: 15px;
    }
    
    .academy-stats {
        gap: 30px;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    .strengths-grid {
        grid-template-columns: 1fr;
    }
    
    .strengths-grid-bottom {
        grid-template-columns: 1fr;
    }
    
    .gift-title {
        font-size: 2rem;
    }
    
    .videos-grid {
        grid-template-columns: 1fr;
    }
    
    .videos-grid-bottom {
        grid-template-columns: 1fr;
    }
    
    .seminar-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .seminar-content {
        padding: 20px;
    }
    
    .seminar-title {
        font-size: 1.1rem;
        min-height: auto;
        -webkit-line-clamp: unset;
    }
    
    .cta-button {
        font-size: 1rem;
        padding: 18px 50px;
        margin-top: 40px;
    }
    
    .cta-button-large {
        font-size: 1.2rem;
        padding: 20px 60px;
    }
}

@media (max-width: 480px) {
    .section {
        padding: 60px 0;
    }
    
    .hero-section {
        padding: 40px 0;
    }
    
    .academy-logo img {
        max-width: 200px;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
    
    .gift-title {
        font-size: 1.8rem;
    }
    
    .academy-stats {
        gap: 20px;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .strengths-grid {
        gap: 20px;
    }
    
    .strength-item {
        padding: 20px;
    }
    
    .seminar-card {
        margin-bottom: 20px;
    }
    
    .seminar-content {
        padding: 15px;
    }
    
    .seminar-title {
        font-size: 1rem;
    }
    
    .seminar-button {
        padding: 10px 20px;
        font-size: 0.9rem;
    }
    
    .cta-button {
        padding: 16px 40px;
        margin-top: 30px;
    }
    
    .cta-button-large {
        padding: 18px 50px;
    }
}


/* ② PIVOT Video Section */
.pivot-video-section {
    background: var(--bg-white);
}

.video-wrapper {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 aspect ratio */
    height: 0;
    overflow: hidden;
    max-width: 100%;
    margin: 0 auto 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-medium);
}

.video-wrapper iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border-radius: 15px;
}

.video-description {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.video-description p {
    font-size: 1.1rem;
    line-height: 1.8;
    color: var(--text-gray);
    margin-bottom: 20px;
}

/* ③ Screenshot Gallery Section */
.screenshot-gallery-section {
    background: var(--secondary-gradient);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
    margin-top: 40px;
}

.gallery-item {
    cursor: pointer;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: var(--shadow-soft);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    background: var(--bg-white);
}

.gallery-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
}

.gallery-item img {
    width: 100%;
    height: auto;
    aspect-ratio: 854 / 480;
    object-fit: cover;
    display: block;
}

/* Lightbox Modal */
.lightbox {
    display: none;
    position: fixed;
    z-index: 9999;
    padding-top: 50px;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    overflow: auto;
    background-color: rgba(0, 0, 0, 0.9);
    animation: fadeIn 0.3s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.lightbox-content {
    margin: auto;
    display: block;
    width: 90%;
    max-width: 1200px;
    animation: zoomIn 0.3s;
}

@keyframes zoomIn {
    from { transform: scale(0.8); }
    to { transform: scale(1); }
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 35px;
    color: #f1f1f1;
    font-size: 40px;
    font-weight: bold;
    transition: 0.3s;
    cursor: pointer;
}

.lightbox-close:hover,
.lightbox-close:focus {
    color: #bbb;
    text-decoration: none;
    cursor: pointer;
}

.lightbox-caption {
    margin: auto;
    display: block;
    width: 90%;
    max-width: 1200px;
    text-align: center;
    color: #ccc;
    padding: 10px 0;
    height: 50px;
    font-size: 1.2rem;
}

/* Responsive */
@media (max-width: 768px) {
    .gallery-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 15px;
    }
    
    .video-description p {
        font-size: 1rem;
    }
    
    .lightbox-content {
        width: 95%;
    }
    
    .lightbox-close {
        top: 10px;
        right: 20px;
        font-size: 35px;
    }
}

@media (max-width: 480px) {
    .gallery-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    
    .video-description p {
        font-size: 0.95rem;
    }
}