/* ==== Buttons =================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 16px;
    border-radius: 999px;
    border: 1px solid transparent;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background 0.2s, color 0.2s, box-shadow 0.2s, transform 0.05s;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 10px 20px rgba(37, 99, 235, 0.25);
}

.btn-primary:hover {
    background: #00448a;
    text-decoration: none;
}

.btn-outline {
    background: #fff;
    color: var(--primary);
    border-color: var(--primary);
}

.btn-outline:hover {
    background: #eff6ff;
}

.btn-sm {
    padding: 7px 12px;
    font-size: 0.85rem;
}

/* ==== Sections / Titles ======================================== */
.section-header {
    text-align: center;
    margin-bottom: 32px;
}

.section-header h2 {
    margin-bottom: 8px;
}

.section-header p {
    color: var(--muted);
    margin: 0;
}

.section-header-left {
    text-align: left;
}

.section-header-left p {
    text-align: left;
}

/* ==== Cards ===================================================== */
.card {
    background: #fff;
    border-radius: var(--radius-lg);
    padding: 18px 20px;
    box-shadow: var(--shadow-soft);
}

/* Feature cards */
.feature-card h3 {
    margin-top: 0;
    margin-bottom: 8px;
}

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

.tag-list {
    list-style: none;
    padding: 0;
    margin: 12px 0 0;
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.tag-list li {
    background: #eef2ff;
    padding: 4px 10px;
    border-radius: 999px;
    font-size: 0.8rem;
}

/* ==== Impact section =========================================== */
.impact-section {
    /*background: #fff;*/
    margin-top: 24px;
    margin-bottom: 24px;
}

.impact-grid {
    margin-top: 24px;
}

.impact-card {
    text-align: center;
    padding: 18px 16px;
    border-radius: 18px;
    background: linear-gradient(135deg, #eff6ff, #e0f2fe);
    box-shadow: 0 10px 20px rgba(15, 23, 42, 0.08);
}

.impact-number {
    display: block;
    font-weight: 800;
    font-size: 1.8rem;
    color: #111827;
}

.impact-label {
    display: block;
    margin-top: 4px;
    font-size: 0.85rem;
    color: #4b5563;
}

.impact-footnote {
    margin-top: 16px;
    text-align: center;
    color: #6b7280;
    font-size: 0.8rem;
}

/* ==== Project cards ============================================ */
.project-grid {
    align-items: stretch;
}

.project-card {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.project-thumb {
    border-radius: 12px;
    overflow: hidden;
    height: 140px;
    background: #e5e7eb;
}

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

.project-thumb-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
}

.project-thumb-icon {
    font-size: 1.8rem;
    opacity: 0.55;
}

.project-tag {
    position: absolute;
    top: 14px;
    right: 16px;
    font-size: 0.75rem;
    padding: 4px 10px;
    border-radius: 999px;
    color: #fff;
}

.jsb-tag {
    background: #16a34a;
}

.loading-tag {
    background: #9ca3af;
}

.project-card h3 {
    margin: 4px 0 8px;
}

.project-card p {
    color: var(--muted);
    font-size: 0.92rem;
}

.project-status-text {
    margin: 6px 0 14px;
    font-size: 0.85rem;
    color: #6b7280;
}

.project-meta {
    font-size: 0.8rem;
    color: #4b5563;
    display: flex;
    flex-wrap: wrap;
    gap: 6px 14px;
    margin: 4px 0 14px;
}

/* ==== CTA section ============================================== */
.cta-section {
    border-top: 1px solid #e5e7eb;
}

.cta-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

/* ==== Footer ==================================================== */
.site-footer {
    padding: 20px 0 24px;
    background: #111827;
    color: #e5e7eb;
    margin-top: 24px;
}

.footer-inner {
    text-align: center;
    font-size: 0.85rem;
}

.footer-note {
    color: #9ca3af;
    margin-top: 4px;
}

/* ==== Japan flag card =========================================== */
.flag-card {
    display: flex;
    align-items: center;
    gap: 10px;
    background: #fff;
    border-radius: 999px;
    padding: 8px 12px;
    border: 1px solid #e5e7eb;
}

.flag-logo {
    width: 30px;
    height: 30px;
    object-fit: contain;
    border-radius: 50%;
}

.flag-text {
    display: flex;
    flex-direction: column;
}

.flag-label {
    font-size: 0.75rem;
    color: var(--muted);
}

.flag-title {
    font-size: 0.9rem;
    font-weight: 600;
}

/* ==== Map preview card (home) ================================== */
.map-preview-card {
    display: grid;
    gap: 20px;
    grid-template-columns: minmax(0, 1.5fr) minmax(0, 2fr);
}

.map-preview-visual img {
    border-radius: 12px;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.map-preview-text h3 {
    margin-top: 0;
    margin-bottom: 8px;
}

.map-preview-text p {
    color: var(--muted);
}

.map-preview-text ul {
    margin: 12px 0 16px;
    padding-left: 18px;
    color: #4b5563;
    font-size: 0.9rem;
}

/* ==== Japan ribbon (home) ====================================== */
.japan-ribbon {
    background: #111827;
    color: #f9fafb;
}

.japan-ribbon-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
}

.japan-ribbon-flag img {
    width: 52px;
    height: 52px;
    border-radius: 999px;
    object-fit: contain;
    background: #f9fafb;
    padding: 4px;
}

.japan-ribbon-text h3 {
    margin: 0 0 4px;
}

.japan-ribbon-text p {
    margin: 0;
    font-size: 0.9rem;
    color: #e5e7eb;
}