/* ============================================
   RESPONSIVE DESIGN
   ============================================ */

/* Base Mobile Defaults */
.container {
    padding: 0 20px;
}

.section-padding {
    padding: 72px 0;
}

.section-title {
    font-size: 2rem;
}

.grid-2, .grid-3, .grid-4 {
    grid-template-columns: 1fr;
    gap: 24px;
}

/* Tablet (min-width: 768px) */
@media (min-width: 768px) {
    .container {
        padding: 0 28px;
    }

    .section-padding {
        padding: 96px 0;
    }

    .section-title {
        font-size: 2.5rem;
    }

    .grid-2 {
        grid-template-columns: repeat(2, 1fr);
    }

    .grid-3 {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .grid-4 {
        grid-template-columns: repeat(2, 1fr);
    }

    .spec-grid {
        gap: 40px;
    }
}

/* Laptop (min-width: 992px) */
@media (min-width: 992px) {
    .container {
        padding: 0 32px;
    }

    .hamburger {
        display: none;
    }

    .nav-menu {
        display: flex;
        position: static;
        flex-direction: row;
        background: transparent;
        width: auto;
        height: auto;
        padding: 0;
        box-shadow: none;
        align-items: center;
    }

    .grid-3 {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* Desktop (min-width: 1200px) */
@media (min-width: 1200px) {
    .section-padding {
        padding: 120px 0;
    }

    .section-title {
        font-size: 3rem;
    }

    .grid-4 {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Mobile Navigation (max-width: 991px) */
@media (max-width: 991px) {
    :root {
        --nav-height: 100px;
    }

    .navbar.scrolled {
        height: 76px;
    }

    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: fixed;
        top: var(--nav-height);
        left: -100%;
        width: 100%;
        height: calc(100vh - var(--nav-height));
        background: rgba(10, 10, 10, 0.97);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
        gap: 32px;
        border-top: 1px solid rgba(201, 169, 110, 0.1);
    }

    .nav-menu.active {
        left: 0;
    }

    .nav-link {
        font-size: 1.1rem;
        letter-spacing: 2px;
    }

    .hamburger.active span:nth-child(1) {
        transform: translateY(7px) rotate(45deg);
    }
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    .hamburger.active span:nth-child(3) {
        transform: translateY(-7px) rotate(-45deg);
    }

    .doctor-bio-header {
        flex-direction: column;
        text-align: center;
    }
}

/* Mobile-specific adjustments (max-width: 767px) */
@media (max-width: 767px) {
    .hero-title {
        font-size: 2.5rem;
        letter-spacing: -0.5px;
    }
    .hero-desc {
        font-size: 1rem;
    }
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    .hero-buttons .btn {
        width: 100%;
    }

    .ba-slider-container {
        height: 300px;
    }

    .cta h2 {
        font-size: 2rem;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }

    .footer {
        text-align: center;
    }
    .social-links {
        justify-content: center;
    }

    .stat-box h3 {
        font-size: 2.2rem;
    }

    .testimonial-card {
        min-width: 85vw;
    }

    .spec-grid {
        flex-direction: column;
        gap: 24px;
        align-items: center;
    }

    .carousel-control {
        width: 42px;
        height: 42px;
        font-size: 1rem;
    }
    .carousel-control.prev { left: 16px; }
    .carousel-control.next { right: 16px; }

    .contact-form-container {
        padding: 28px;
    }

    .doctor-bio {
        padding: 28px;
    }

    .nav-logo img {
        max-height: 80px;
        max-width: 320px;
    }

    .navbar.scrolled .nav-logo img {
        max-height: 50px;
    }

    .floating-actions {
        bottom: 20px;
        right: 20px;
    }

    .fab {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
}

/* Small mobile (max-width: 480px) */
@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .section-padding {
        padding: 56px 0;
    }

    .hero-title {
        font-size: 2.2rem;
        letter-spacing: -0.5px;
    }
    
    .section-title {
        font-size: 1.8rem;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 6px 14px;
    }

    .btn {
        padding: 14px 28px;
        font-size: 0.95rem;
    }

    .doctor-bio {
        padding: 20px;
    }

    .contact-form-container {
        padding: 20px;
    }

    .testimonial-card {
        padding: 24px;
        min-width: 85vw;
    }

    .stat-box {
        padding: 24px 16px;
    }

    .stat-box h3 {
        font-size: 2rem;
    }
}