:root {
    --blue-primary: #1a6dc4;
    --blue-dark: #0d4a8f;
    --blue-light: #e8f2fc;
    --teal: #0e9e8e;
    --gray-text: #4b5563;
    --light-bg: #f0f6ff;
}

* {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', sans-serif;
    color: #1f2937;
}

.nav-link {
    transition: color 0.2s;
}

.nav-link:hover {
    color: var(--blue-primary);
}

.hero-gradient {
    background: linear-gradient(135deg, #eaf3ff 0%, #f5faff 60%, #dbeeff 100%);
}

.stat-card {
    background: white;
    border-radius: 12px;
    box-shadow: 0 2px 16px rgba(26, 109, 196, 0.10);
}

.treatment-card {
    background: white;
    border-radius: 14px;
    border: 1px solid #e5edf8;
    transition: box-shadow 0.2s, transform 0.2s;
}

.treatment-card:hover {
    box-shadow: 0 8px 32px rgba(26, 109, 196, 0.15);
    transform: translateY(-3px);
}

.trust-card {
    background: white;
    border-radius: 14px;
    border: 1px solid #e5edf8;
    transition: box-shadow 0.2s;
}

.trust-card:hover {
    box-shadow: 0 6px 24px rgba(26, 109, 196, 0.12);
}

.step-circle {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--blue-primary), #2e86e8);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 700;
    font-size: 1.1rem;
    flex-shrink: 0;
}

.testimonial-card {
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 20px rgba(26, 109, 196, 0.10);
    border: 1px solid #e5edf8;
}

.badge-trusted {
    background: linear-gradient(135deg, #1a6dc4, #0e9e8e);
    color: white;
    border-radius: 50px;
    padding: 4px 14px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}

.btn-primary {
    background: linear-gradient(135deg, #1a6dc4, #2e86e8);
    color: white;
    border-radius: 8px;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: transform 0.15s, box-shadow 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: none;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary:hover {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(26, 109, 196, 0.35);
}

.btn-outline {
    border: 2px solid #1a6dc4;
    color: #1a6dc4;
    border-radius: 8px;
    padding: 10px 24px;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all 0.15s;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: white;
    cursor: pointer;
    text-decoration: none;
}

.btn-outline:hover {
    background: #1a6dc4;
    color: white;
}

.section-eyebrow {
    color: var(--blue-primary);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    text-transform: uppercase;
}

.icon-box {
    width: 48px;
    height: 48px;
    background: var(--blue-light);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--blue-primary);
    font-size: 1.2rem;
    flex-shrink: 0;
}

.faq-item {
    border-bottom: 1px solid #e5edf8;
}

.faq-answer {
    display: none;
}

.faq-answer.open {
    display: block;
}

.faq-btn {
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    cursor: pointer;
}

.doctor-photo {
    border-radius: 16px;
    box-shadow: 0 8px 40px rgba(26, 109, 196, 0.18);
}

.hero-blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.25;
    pointer-events: none;
}

.cta-section {
    background: linear-gradient(135deg, #1a6dc4 0%, #0d4a8f 100%);
}

footer {
    background: #111827;
}

.nav-scrolled {
    background: white !important;
    box-shadow: 0 2px 12px rgba(26, 109, 196, 0.10);
}

.college-badge {
    background: #f0f6ff;
    border: 1px solid #d0e4f8;
    border-radius: 8px;
    padding: 6px 12px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #1a6dc4;
    display: inline-block;
}

.stars {
    color: #f59e0b;
}

.avatar-circle {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.9rem;
    color: white;
}

.success-badge {
    background: linear-gradient(135deg, #0e9e8e, #059669);
    color: white;
    border-radius: 10px;
    padding: 8px 16px;
    font-size: 0.8rem;
    font-weight: 700;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.fade-in {
    animation: fadeInUp 0.6s ease both;
}

.fade-in-2 {
    animation: fadeInUp 0.6s 0.15s ease both;
}

.fade-in-3 {
    animation: fadeInUp 0.6s 0.3s ease both;
}

/* mobile menu */
#mobile-menu {
    display: none;
}

#mobile-menu.open {
    display: block;
}

.whatsapp-float {
    position: fixed;
    width: 60px;
    height: 60px;
    bottom: 80px;
    right: 20px;
    background: #25D366;
    color: #fff;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 34px;
    text-decoration: none;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
    z-index: 9999;
    transition: all 0.3s ease;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    background: #20ba5a;
    color: #fff;
}

@media (max-width: 768px) {
    .whatsapp-float {
        width: 55px;
        height: 55px;
        bottom: 20px;
        right: 20px;
        font-size: 30px;
    }
}