:root {
    --primary-color: #72bf49;
    --primary-dark: #9859a9;
    --secondary-color: #44b9e9;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --bg-light: #f8fafc;
    --bg-white: #ffffff;
    --border-color: #e2e8f0;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
}

body {
    background: linear-gradient(135deg, #72bf49 0%, #44b9e9 100%) !important;
    min-height: 100vh;
    position: relative;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 20% 50%, rgba(120, 119, 198, 0.3) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(99, 102, 241, 0.3) 0%, transparent 50%);
    pointer-events: none;
    z-index: 0;
}

.main-container {
    position: relative;
    z-index: 1;
    padding-top: 2rem;
    padding-bottom: 4rem;
}

.page-header {
    text-align: center;
    margin-bottom: 3rem;
    animation: fadeInDown 0.8s ease-out;
}

.page-header h1 {
    font-size: clamp(2rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--bg-white);
    margin-bottom: 0.75rem;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    letter-spacing: -0.02em;
}

.page-header p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.6;
}

.educator-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.2);
    overflow: hidden;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    height: 100%;
    display: flex;
    flex-direction: column;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.6s ease-out backwards;
}

.educator-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(99, 102, 241, 0.3);
}

.card-header-section {
    padding: 2rem;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1) 0%, rgba(139, 92, 246, 0.1) 100%);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.educator-avatar-wrapper {
    position: relative;
    flex-shrink: 0;
    max-width: 120px;
}

.educator-avatar {
    width: 80px !important;
    height: 80px !important;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid var(--bg-white);
    box-shadow: var(--shadow-md);
    transition: transform 0.3s ease;
}

.educator-card:hover .educator-avatar {
    transform: scale(1.05);
}

.avatar-placeholder {
    width: 90px;
    height: 90px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 2rem;
    font-weight: 700;
    border: 4px solid var(--bg-white);
    box-shadow: var(--shadow-md);
}

.online-indicator {
    position: absolute;
    bottom: 4px;
    right: 4px;
    width: 18px;
    height: 18px;
    background: #10b981;
    border: 3px solid var(--bg-white);
    border-radius: 50%;
    box-shadow: var(--shadow-sm);
}

.educator-info {
    flex: 1;
    min-width: 0;
}

.educator-name {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    line-height: 1.2;
}

.educator-role {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.educator-email {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-top: 0.5rem;
}

.educator-email svg {
    width: 16px;
    height: 16px;
    flex-shrink: 0;
}

.educator-email a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color 0.2s;
    word-break: break-word;
}

.educator-email a:hover {
    color: var(--primary-dark);
    text-decoration: underline;
}

.card-body-section {
    padding: 2rem;
    flex: 1;
}

.educator-about {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 0.95rem;
    margin: 0;
}

.card-footer-section {
    padding: 1.5rem 2rem;
    background: var(--bg-light);
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.action-btn {
    flex: 1;
    min-width: 120px;
    padding: 0.625rem 1.25rem;
    border-radius: 10px;
    font-weight: 600;
    font-size: 0.875rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    text-decoration: none;
    display: inline-block;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
}

.btn-outline:hover {
    background: var(--primary-color);
    color: white;
}

.empty-state {
    text-align: center;
    padding: 4rem 2rem;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    animation: fadeInUp 0.6s ease-out;
}

.empty-state-icon {
    width: 120px;
    height: 120px;
    margin: 0 auto 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 3rem;
}

.empty-state h3 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1rem;
}

.empty-state p {
    font-size: 1.125rem;
    color: var(--text-secondary);
    margin-bottom: 0;
}

@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.educator-card:nth-child(1) {
    animation-delay: 0.1s;
}

.educator-card:nth-child(2) {
    animation-delay: 0.2s;
}

.educator-card:nth-child(3) {
    animation-delay: 0.3s;
}

.educator-card:nth-child(4) {
    animation-delay: 0.4s;
}

.educator-card:nth-child(5) {
    animation-delay: 0.5s;
}

.educator-card:nth-child(6) {
    animation-delay: 0.6s;
}

@media (max-width: 768px) {
    .card-header-section {
        flex-direction: column;
        text-align: center;
        padding: 1.5rem;
    }

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

    .educator-email {
        justify-content: center;
    }

    .card-footer-section {
        flex-direction: column;
    }

    .action-btn {
        width: 100%;
        min-width: auto;
    }
}

@media (max-width: 576px) {
    .educator-avatar,
    .avatar-placeholder {
        width: 70px;
        height: 70px;
    }

    .educator-name {
        font-size: 1.25rem;
    }

    .card-body-section {
        padding: 1.5rem;
    }
}