/* Impact Page Styles */
.yi-impact-page {
    background-color: #0d0d0d;
    color: #ffffff;
    font-family: 'Noto Sans JP', sans-serif;
    padding-top: 64px;
}

.yi-container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

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

.yi-section-header {
    margin-bottom: 50px;
}

.yi-section-subtitle {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    letter-spacing: 2px;
    display: block;
    margin-bottom: 10px;
}

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

.yi-section-title {
    font-size: 32px;
    font-weight: 700;
    color: #ffffff;
    margin: 0 0 20px 0;
    line-height: 1.4;
}

.yi-section-line {
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

.yi-badge {
    background-color: transparent;
    border: 1px solid var(--primary-color);
    color: var(--primary-color);
    font-size: 11px;
    padding: 3px 8px;
    border-radius: 3px;
    vertical-align: middle;
    margin-left: 10px;
}

/* Hero Section */
.yi-impact-hero {
    text-align: center;
    padding: 120px 0 80px;
    background: linear-gradient(180deg, #1a0800 0%, #0a0a0a 100%);
}

.yi-impact-subtitle {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 4px;
    display: block;
    margin-bottom: 20px;
}

.yi-impact-title {
    font-size: clamp(2.5rem, 6vw, 5rem);
    font-weight: 900;
    line-height: 1.2;
    margin: 0 0 30px 0;
    letter-spacing: -1px;
}

.yi-impact-hero-desc {
    font-size: 16px;
    color: #cccccc;
}

/* Numbers Section */
.yi-impact-numbers {
    background-color: #131315;
}

.yi-numbers-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.yi-number-card {
    background-color: #1a1a1c;
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.yi-number-value {
    font-family: 'Oswald', sans-serif;
    color: var(--primary-color);
    font-size: 48px;
    font-weight: 700;
    margin: 0 0 10px 0;
    line-height: 1;
}

.yi-number-unit {
    font-size: 20px;
    font-family: 'Noto Sans JP', sans-serif;
    font-weight: 700;
    margin-left: 5px;
}

.yi-number-label {
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 5px 0;
}

.yi-number-sub {
    font-size: 11px;
    color: #888888;
    margin: 0;
}

/* Season 1 Challenges */
.yi-season-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 30px;
}

.yi-season-card {
    background-color: #151518;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.yi-season-img-placeholder {
    width: 100%;
    height: 250px;
    background-color: #222;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #555;
    font-size: 14px;
}

.yi-season-content {
    padding: 30px;
}

.yi-season-tag {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 12px;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 10px;
}

.yi-season-name {
    font-size: 24px;
    font-weight: 700;
    margin: 0 0 10px 0;
}

.yi-season-project {
    font-size: 14px;
    font-weight: 700;
    margin: 0 0 15px 0;
}

.yi-season-desc {
    font-size: 13px;
    color: #cccccc;
    line-height: 1.6;
    margin: 0 0 20px 0;
}

.yi-season-link {
    display: inline-block;
    color: #fff;
    background-color: rgba(255, 255, 255, 0.05);
    padding: 12px 20px;
    border-radius: 4px;
    text-decoration: none;
    font-size: 13px;
    font-weight: 700;
    width: 100%;
    text-align: center;
    box-sizing: border-box;
    transition: background-color 0.3s ease;
}

.yi-season-link:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--primary-color);
}

/* Voices Section */
.yi-impact-voices {
    background-color: #131315;
}

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

.yi-voice-card {
    background-color: #1a1a1c;
    border-radius: 8px;
    padding: 40px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.yi-voice-quote {
    color: var(--primary-color);
    font-family: 'Oswald', sans-serif;
    font-size: 40px;
    line-height: 1;
    margin-bottom: 10px;
}

.yi-voice-text {
    font-size: 14px;
    line-height: 1.8;
    color: #dddddd;
    margin: 0 0 30px 0;
    min-height: 120px;
}

.yi-voice-author {
    display: flex;
    align-items: center;
    gap: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
}

.yi-voice-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: #333;
    flex-shrink: 0;
}

.yi-voice-info {
    flex-grow: 1;
}

.yi-voice-name {
    font-size: 15px;
    font-weight: 700;
    margin: 0 0 5px 0;
}

.yi-voice-title {
    font-size: 11px;
    color: #aaaaaa;
    margin: 0;
}

/* Media Section */
.yi-media-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

.yi-media-card {
    background-color: #151518;
    border-radius: 8px;
    padding: 30px;
    border: 1px solid rgba(255, 255, 255, 0.05);
    text-decoration: none;
    color: #fff;
    display: block;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.yi-media-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
}

.yi-media-source {
    color: var(--primary-color);
    font-size: 12px;
    font-weight: 700;
    display: block;
    margin-bottom: 15px;
}

.yi-media-title {
    font-size: 16px;
    font-weight: 700;
    line-height: 1.5;
    margin: 0 0 15px 0;
}

.yi-media-date {
    font-size: 12px;
    color: #888888;
    margin: 0;
}

/* CTA Section */
.yi-impact-cta {
    padding: 100px 20px;
    text-align: center;
    background-color: #0d0d0d;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.yi-cta-title {
    font-size: 28px;
    font-weight: 700;
    margin: 0 0 15px 0;
}

.yi-cta-desc {
    font-size: 14px;
    color: #aaaaaa;
    margin: 0 0 40px 0;
}

.yi-cta-buttons {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.yi-btn {
    padding: 15px 30px;
    border-radius: 4px;
    font-size: 14px;
    font-weight: 700;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    display: inline-block;
}

.yi-btn-primary {
    background-color: var(--primary-color);
    color: #ffffff;
}

.yi-btn-primary:hover {
    background-color: #e04e0f;
    color: #ffffff;
}

.yi-btn-outline {
    background-color: transparent;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #ffffff;
}

.yi-btn-outline:hover {
    border-color: #ffffff;
}

/* Responsive */
@media (max-width: 992px) {
    .yi-numbers-grid {
        grid-template-columns: repeat(2, 1fr);
    }

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

@media (max-width: 768px) {

    .yi-numbers-grid,
    .yi-season-grid,
    .yi-voices-grid,
    .yi-media-grid {
        grid-template-columns: 1fr;
    }

    .yi-cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .yi-btn {
        width: 100%;
        max-width: 300px;
    }
}