/* Page header */
.page-header {
    background: var(--gradient-primary);
    padding: 5rem 0;
    border-radius: 0 0 40px 40px;
}

/* Stat Box */
.stat-box {
    background: var(--color-bg-white);
    border-radius: 20px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 8px 20px var(--color-shadow);
    border: 1px solid var(--color-border);
}

.stat-number-lg {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--color-primary);
    line-height: 1.2;
}

/* Research Area Card */
.research-area-card {
    background: var(--color-bg-white);
    border-radius: 24px;
    padding: 2rem;
    box-shadow: 0 12px 28px var(--color-shadow);
    border: 1px solid var(--color-border);
    height: 100%;
    transition: all 0.3s;
}

.research-area-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(47, 140, 143, 0.15);
    border-color: var(--color-secondary);
}

.research-icon {
    width: 70px;
    height: 70px;
    background: rgba(47, 140, 143, 0.1);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
}

.research-icon i {
    font-size: 2rem;
    color: var(--color-secondary);
}

/* Publication Card */
.publication-card {
    background: var(--color-bg-white);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 8px 20px var(--color-shadow);
    border: 1px solid var(--color-border);
    margin-bottom: 1.5rem;
    transition: all 0.2s;
}

.publication-card:hover {
    transform: translateX(8px);
    border-left: 5px solid var(--color-secondary);
}

/* Trial Card */
.trial-card {
    background: var(--color-bg-white);
    border-radius: 20px;
    padding: 1.5rem;
    box-shadow: 0 8px 20px var(--color-shadow);
    border: 1px solid var(--color-border);
    height: 100%;
}

.trial-status {
    display: inline-block;
    padding: 0.25rem 1rem;
    border-radius: 30px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.status-recruiting {
    background: rgba(76, 175, 80, 0.15);
    color: var(--color-success);
}

.status-ongoing {
    background: rgba(58, 134, 198, 0.15);
    color: var(--color-info);
}

.status-completed {
    background: rgba(107, 124, 134, 0.15);
    color: var(--color-text-secondary);
}

/* Team Card */
.researcher-card {
    background: var(--color-bg-white);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    box-shadow: 0 8px 20px var(--color-shadow);
    border: 1px solid var(--color-border);
    transition: all 0.2s;
}

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

/* Partner Card */
.partner-card {
    background: var(--color-bg-white);
    border-radius: 20px;
    padding: 1.5rem;
    text-align: center;
    box-shadow: 0 8px 20px var(--color-shadow);
    border: 1px solid var(--color-border);
    height: 100%;
}

/* Impact Card */
.impact-card {
    background: var(--gradient-primary);
    border-radius: 24px;
    padding: 2.5rem;
    color: white;
}

/* Footer */
.footer-link {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-link:hover {
    color: var(--color-accent);
}

.badge-accent {
    background-color: var(--color-accent);
    color: #1E3557;
    font-weight: 500;
}

/* Tab Navigation */
.research-tabs .nav-link {
    border-radius: 40px;
    padding: 0.8rem 2rem;
    font-weight: 600;
    margin: 0 0.3rem;
    color: var(--color-text-primary);
    background: var(--color-bg-white);
    border: 1px solid var(--color-border);
}

.research-tabs .nav-link.active {
    background: var(--color-secondary);
    color: white !important;
    border-color: var(--color-secondary);
}

@media (max-width: 768px) {
    .navbar-brand {
        font-size: 1.5rem;
    }

    .page-header {
        padding: 3rem 0;
        border-radius: 0 0 20px 20px;
    }

    .research-tabs .nav-link {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }
}