:root {
    --blue-dark: #145a9e;
    --blue-light: #e8f2fb;
    --blue: #1a6fc4;
    --orange: #f4811f;
    --orange-dark: #d97014;
    --orange-light: #fff5ed;
    --white: #ffffff;
    --off-white: #f9fafb;
    --gray-50: #f8fafc;
    --gray-100: #f1f5f9;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-500: #64748b;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1e293b;
    --gray-900: #0f172a;
    --shadow: 0 4px 6px -1px rgba(0,0,0,0.07), 0 2px 4px -2px rgba(0,0,0,0.05);
    --shadow-lg: 0 20px 40px -10px rgba(0,0,0,0.1), 0 8px 20px -8px rgba(0,0,0,0.06);
    --radius: 16px;
    --radius-lg: 22px;
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-poppins: 'Poppins', sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

body {
    font-family: var(--font-poppins);
    background: var(--white);
    color: var(--gray-800);
    line-height: 1.7;
    padding-top: 80px; /* space for fixed nav */
}

/* Simple fixed navbar for back link */
.navbar {
    position: fixed;
    top: 0; left: 0; right: 0;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(10px);
    padding: 12px 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    z-index: 100;
    border-bottom: 1px solid var(--gray-200);
}
.navbar a {
    text-decoration: none;
    color: var(--blue);
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.navbar .logo {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--gray-900);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Page Header */
.page-header {
    text-align: center;
    margin-bottom: 60px;
    padding: 60px 0 20px;
}
.page-header h1 {
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 12px;
}
.page-header p {
    font-size: 1.1rem;
    color: var(--gray-500);
    max-width: 700px;
    margin: 0 auto;
}
.verified-badge {
    display: inline-block;
    background: var(--blue-light);
    color: var(--blue-dark);
    font-weight: 600;
    padding: 6px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    margin-top: 12px;
}

/* Mentor Grid */
.mentor-grid {
    display: flex;
    flex-direction: column;
    gap: 40px;
}

.mentor-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    box-shadow: var(--shadow);
    transition: all var(--transition);
    border: 1px solid var(--gray-100);
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 30px;
    align-items: start;
}
.mentor-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.mentor-img {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    background: var(--blue-light);
    box-shadow: 0 8px 24px rgba(26,111,196,0.15);
}

.mentor-info h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--gray-900);
    margin-bottom: 4px;
}
.mentor-role {
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: 16px;
}
.mentor-role.blue { color: var(--blue); }
.mentor-role.choc { color: #b45309; }
.mentor-role.pink { color: #db2777; }

.detail-block {
    margin-bottom: 18px;
}
.detail-block strong {
    display: block;
    font-weight: 700;
    color: var(--gray-900);
    margin-bottom: 4px;
}
.detail-block ul {
    list-style: none;
    padding-left: 0;
    margin: 0;
}
.detail-block li {
    position: relative;
    padding-left: 20px;
    margin-bottom: 6px;
    font-size: 0.9rem;
    color: var(--gray-600);
}
.detail-block li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--blue);
    font-weight: bold;
}
.skills-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 6px;
}
.skill-tag {
    background: var(--gray-50);
    border: 1px solid var(--gray-200);
    border-radius: 20px;
    padding: 4px 14px;
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--gray-700);
}

.cta-section {
    text-align: center;
    margin: 60px 0 80px;
}
.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 32px;
    background: var(--orange);
    color: white;
    font-weight: 700;
    border-radius: 30px;
    text-decoration: none;
    box-shadow: 0 12px 30px -8px rgba(244,129,31,0.3);
    transition: all var(--transition);
}
.btn-primary:hover {
    background: var(--orange-dark);
    transform: translateY(-3px);
}

footer {
    text-align: center;
    padding: 30px 20px;
    border-top: 1px solid var(--gray-200);
    color: var(--gray-500);
    font-size: 0.85rem;
}

@media (max-width: 768px) {
    .mentor-card {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .mentor-img {
        margin: 0 auto;
        width: 100px;
        height: 100px;
    }
    .skills-list {
        justify-content: center;
    }
}