/* ===== VARIABLES & RESET ===== */
:root {
    --primary-color: #2e276c;
    --primary-light: #3d3590;
    --primary-dark: #1e1a4d;
    --secondary-color: #d4af37;
    --secondary-light: #e6c75d;
    --light-color: #f8f9fa;
    --dark-color: #212529;
    --gray-light: #e9ecef;
    --gray: #6c757d;
    --transition: all 0.3s ease;
    --shadow: 0 5px 15px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 30px rgba(0, 0, 0, 0.1);
    --border-radius: 8px;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Montserrat', 'Segoe UI', sans-serif;
    color: var(--dark-color);
    line-height: 1.6;
    background-color: #fff;
    overflow-x: hidden;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary-dark);
}

h1 {
    font-size: 3.5rem;
    letter-spacing: -0.5px;
}

h2 {
    font-size: 2.5rem;
    position: relative;
    display: inline-block;
    margin-bottom: 2.5rem;
}

h2:after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--secondary-color);
}

h3 {
    font-size: 1.75rem;
}

h4 {
    font-size: 1.3rem;
}

p {
    margin-bottom: 1rem;
    font-size: 1.05rem;
}

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

.text-center h2:after {
    left: 50%;
    transform: translateX(-50%);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-block;
    padding: 12px 32px;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.btn:hover {
    background: var(--primary-light);
    color: white;
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

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

.btn-secondary:hover {
    background: var(--secondary-light);
}

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

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

/* ===== HEADER & NAVIGATION ===== */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.header-scrolled {
    padding: 10px 0;
}

.header-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo img {
    height: 40px;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-color);
    letter-spacing: 1px;
}

nav ul {
    display: flex;
    list-style: none;
    gap: 30px;
}

nav a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 600;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: var(--transition);
    position: relative;
}

nav a:hover {
    color: var(--primary-color);
}

nav a:after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--primary-color);
    transition: var(--transition);
}

nav a:hover:after {
    width: 100%;
}

.mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
}

/* ===== HERO SECTION ===== */
.hero {
    height: 100vh;
    background: linear-gradient(rgba(46, 39, 108, 0.9), rgba(46, 39, 108, 0.8)), 
                url('https://placehold.co/1920x1080/2e276c/FFFFFF?text=MSB+Premium+Skincare') center/cover no-repeat;
    display: flex;
    align-items: center;
    color: white;
    text-align: center;
    padding-top: 80px;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
}

.hero h1 {
    font-size: 4rem;
    color: white;
    margin-bottom: 1.5rem;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
    font-size: 1.3rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.hero-btns {
    display: flex;
    gap: 20px;
    justify-content: center;
    margin-top: 2rem;
}

/* ===== SECTIONS COMMON ===== */
section {
    padding: 100px 0;
}

.section-title {
    text-align: center;
    margin-bottom: 3rem;
}

.section-subtitle {
    text-align: center;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto 3rem;
    font-size: 1.1rem;
}

/* ===== ABOUT SECTION ===== */
.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    align-items: center;
}

.about-img img {
    width: 100%;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-lg);
}

.about-content h3 {
    margin-bottom: 1.5rem;
}

.about-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 2rem;
}

.feature-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.feature-icon {
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

/* ===== PRODUCTS SECTION ===== */
.products-filter {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 10px 25px;
    background: var(--gray-light);
    border: none;
    border-radius: 50px;
    cursor: pointer;
    font-weight: 600;
    transition: var(--transition);
}

.filter-btn.active,
.filter-btn:hover {
    background: var(--primary-color);
    color: white;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 30px;
}

.product-card {
    background: white;
    border-radius: var(--border-radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-img {
    height: 250px;
    background: var(--gray-light);
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.product-card:hover .product-img img {
    transform: scale(1.05);
}

.product-info {
    padding: 25px;
}

.product-category {
    color: var(--primary-color);
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.product-info h4 {
    margin-bottom: 10px;
    min-height: 60px;
}

.product-info p {
    font-size: 0.95rem;
    color: var(--gray);
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 15px;
}

/* ===== TREATMENTS SECTION ===== */
.treatments-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.treatment-card {
    background: white;
    border-radius: var(--border-radius);
    padding: 40px 30px;
    text-align: center;
    box-shadow: var(--shadow);
    transition: var(--transition);
    border-top: 4px solid var(--primary-color);
}

.treatment-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.treatment-icon {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

.treatment-price {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 20px 0;
}

.treatment-features {
    list-style: none;
    text-align: left;
    margin: 20px 0;
}

.treatment-features li {
    padding: 8px 0;
    border-bottom: 1px solid var(--gray-light);
    display: flex;
    align-items: center;
    gap: 10px;
}

.treatment-features li:before {
    content: '✓';
    color: var(--secondary-color);
    font-weight: bold;
}

/* ===== PHILOSOPHY SECTION ===== */
.philosophy {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.philosophy-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.philosophy-item {
    text-align: center;
    padding: 40px 30px;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.philosophy-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

.philosophy-icon {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 20px;
}

/* ===== STATS SECTION ===== */
.stats {
    background: var(--primary-color);
    color: white;
}

.stats h2 {
    color: white;
}

.stats h2:after {
    background: var(--secondary-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

/* ===== TESTIMONIALS ===== */
.testimonials-slider {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.testimonial {
    background: white;
    padding: 40px;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    text-align: center;
    margin: 20px;
}

.testimonial-text {
    font-size: 1.1rem;
    font-style: italic;
    margin-bottom: 30px;
    position: relative;
}

.testimonial-text:before {
    content: '"';
    font-size: 4rem;
    color: var(--gray-light);
    position: absolute;
    top: -20px;
    left: -10px;
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
}

.testimonial-author img {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    object-fit: cover;
}

/* ===== CONTACT SECTION ===== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.contact-info {
    display: grid;
    gap: 20px;
}

.contact-item {
    display: flex;
    align-items: flex-start;
    gap: 15px;
}

.contact-icon {
    background: var(--primary-color);
    color: white;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
}

.contact-form .form-group {
    margin-bottom: 20px;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 15px;
    border: 1px solid var(--gray-light);
    border-radius: var(--border-radius);
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(46, 39, 108, 0.1);
}

/* ===== FOOTER ===== */
footer {
    background: var(--primary-dark);
    color: white;
    padding: 80px 0 30px;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-col h4 {
    color: white;
    margin-bottom: 25px;
    position: relative;
    padding-bottom: 15px;
}

.footer-col h4:after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 40px;
    height: 2px;
    background: var(--secondary-color);
}

.footer-links {
    list-style: none;
}

.footer-links li {
    margin-bottom: 12px;
}

.footer-links a {
    color: #ccc;
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--secondary-color);
    padding-left: 5px;
}

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #999;
    font-size: 0.9rem;
}

/* ===== MODAL ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    z-index: 2000;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    border-radius: var(--border-radius);
    max-width: 800px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: modalFade 0.3s ease;
}

@keyframes modalFade {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: 25px 30px;
    border-bottom: 1px solid var(--gray-light);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    background: white;
    z-index: 1;
}

.modal-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--gray);
    transition: var(--transition);
}

.modal-close:hover {
    color: var(--primary-color);
}

.modal-body {
    padding: 30px;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 992px) {
    h1 {
        font-size: 3rem;
    }
    
    h2 {
        font-size: 2.2rem;
    }
    
    section {
        padding: 80px 0;
    }
}

@media (max-width: 768px) {
    .header-container {
        padding: 15px 0;
    }
    
    nav {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: white;
        box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
        padding: 20px;
        transform: translateY(-100%);
        opacity: 0;
        transition: var(--transition);
    }
    
    nav.active {
        transform: translateY(0);
        opacity: 1;
    }
    
    nav ul {
        flex-direction: column;
        gap: 20px;
    }
    
    .mobile-menu-btn {
        display: block;
    }
    
    .hero h1 {
        font-size: 2.5rem;
    }
    
    .hero p {
        font-size: 1.1rem;
    }
    
    .hero-btns {
        flex-direction: column;
        align-items: center;
    }
    
    .about-features {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 576px) {
    h1 {
        font-size: 2.2rem;
    }
    
    h2 {
        font-size: 1.8rem;
    }
    
    .btn {
        padding: 10px 25px;
        font-size: 0.9rem;
    }
    
    .modal-content {
        max-height: 80vh;
    }
}