/* ============================================
   DISUN PHARMA - PREMIUM THEME CSS
   ============================================ */

:root {
    --primary-blue: #003DA5;
    --secondary-red: #C41E3A;
    --accent-light-blue: #E8F0FF;
    --text-dark: #1a1a1a;
    --text-light: #666666;
    --border-color: #e0e0e0;
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.12);
    --shadow-lg: 0 12px 32px rgba(0, 0, 0, 0.16);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Poppins', sans-serif;
    color: var(--text-dark);
    line-height: 1.6;
    background-color: #ffffff;
    overflow-x: hidden;
}

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

/* ============================================
   STICKY HEADER
   ============================================ */

.sticky-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: linear-gradient(135deg, #ffffff 0%, #f8f9ff 100%);
    box-shadow: var(--shadow-md);
    transition: var(--transition);
}

.header-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    gap: 20px;
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
    cursor: pointer;
    transition: var(--transition);
}

.logo {
    height: 45px;
    width: auto;
    transition: var(--transition);
}

.logo-section:hover .logo {
    transform: scale(1.05);
}

.company-name {
    font-size: 22px;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.main-nav {
    display: flex;
    gap: 30px;
    flex: 1;
    justify-content: center;
}

.nav-link {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-dark);
    text-decoration: none;
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--primary-blue), var(--secondary-red));
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

.enquiry-btn {
    background: linear-gradient(135deg, var(--primary-blue), var(--primary-blue));
    color: white;
    border: none;
    padding: 12px 28px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    box-shadow: var(--shadow-md);
}

.enquiry-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
    background: linear-gradient(135deg, #002880, #003DA5);
}

.mobile-menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.mobile-menu-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-blue);
    border-radius: 2px;
    transition: var(--transition);
}

/* ============================================
   MOBILE NAVIGATION
   ============================================ */

.mobile-nav {
    display: none;
    flex-direction: column;
    background: white;
    border-bottom: 2px solid var(--accent-light-blue);
    padding: 15px 20px;
    gap: 10px;
    box-shadow: var(--shadow-md);
}

.mobile-nav a {
    color: var(--text-dark);
    text-decoration: none;
    padding: 10px;
    font-weight: 500;
    transition: var(--transition);
}

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

/* ============================================
   HERO SLIDER
   ============================================ */

.hero-slider {
    position: relative;
    height: 600px;
    overflow: hidden;
    margin-top: 20px;
}

.slider-container {
    position: relative;
    width: 100%;
    height: 100%;
}

.slider-item {
    position: absolute;
    width: 100%;
    height: 100%;
    background-size: cover;
    background-position: center;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.8s ease-in-out;
}

.slider-item.active {
    opacity: 1;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(135deg, rgba(0, 61, 165, 0.7), rgba(196, 30, 58, 0.7));
    z-index: 1;
}

.slider-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: white;
    max-width: 700px;
    animation: slideInUp 0.8s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 56px;
    font-weight: 700;
    margin-bottom: 15px;
    text-shadow: 2px 2px 8px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: 20px;
    margin-bottom: 30px;
    opacity: 0.95;
    font-weight: 300;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    flex-wrap: wrap;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
    padding: 12px 28px;
    border: none;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    display: inline-block;
    text-align: center;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-blue), #002880);
    color: white;
    box-shadow: var(--shadow-md);
}

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

.btn-secondary {
    background: linear-gradient(135deg, var(--secondary-red), #9a0f1f);
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-secondary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg);
}

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

.btn-outline:hover {
    background: var(--accent-light-blue);
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

.btn-large {
    padding: 16px 40px;
    font-size: 16px;
}

/* ============================================
   SLIDER NAVIGATION
   ============================================ */

.slider-nav {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 10;
    display: flex;
    gap: 15px;
}

.slider-prev,
.slider-next {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid white;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 18px;
}

.slider-prev:hover,
.slider-next:hover {
    background: rgba(255, 255, 255, 0.4);
    transform: scale(1.1);
}

/* ============================================
   SECTIONS
   ============================================ */

section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 42px;
    font-weight: 700;
    color: var(--text-dark);
    margin-bottom: 10px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-red));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-header p {
    font-size: 16px;
    color: var(--text-light);
    font-weight: 300;
}

/* ============================================
   ABOUT SECTION
   ============================================ */

.about-section {
    background: linear-gradient(135deg, var(--accent-light-blue), white);
}

.about-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.about-card {
    background: white;
    padding: 40px 30px;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid rgba(0, 61, 165, 0.1);
}

.about-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary-blue);
}

.icon-box {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-red));
    border-radius: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: white;
    font-size: 32px;
    transition: var(--transition);
}

.about-card:hover .icon-box {
    transform: rotate(10deg) scale(1.1);
}

.about-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
}

.about-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
}

/* ============================================
   PRODUCT SHOWCASE
   ============================================ */

.product-showcase {
    background: white;
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 30px;
    margin-bottom: 50px;
}

.product-card {
    background: white;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border: 1px solid var(--border-color);
}

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

.product-image {
    position: relative;
    width: 100%;
    height: 250px;
    overflow: hidden;
    background: var(--accent-light-blue);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px;
}

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

.product-card:hover .product-image img {
    transform: scale(1.1);
}

.product-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 61, 165, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.product-info {
    padding: 25px;
}

.product-info h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-dark);
}

.product-info p {
    font-size: 14px;
    color: var(--text-light);
    margin-bottom: 15px;
}

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

/* ============================================
   WHY CHOOSE US
   ============================================ */

.why-choose-us {
    background: linear-gradient(135deg, var(--accent-light-blue), white);
}

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

.reason-card {
    background: white;
    padding: 40px;
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    transition: var(--transition);
    border-left: 4px solid var(--primary-blue);
    position: relative;
    overflow: hidden;
}

.reason-card::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, rgba(0, 61, 165, 0.1), rgba(196, 30, 58, 0.1));
    border-radius: 50%;
    transform: translate(50%, -50%);
    transition: var(--transition);
}

.reason-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-left-color: var(--secondary-red);
}

.reason-number {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    font-weight: 700;
    color: var(--primary-blue);
    margin-bottom: 15px;
    opacity: 0.2;
}

.reason-card h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-dark);
    position: relative;
    z-index: 1;
}

.reason-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    position: relative;
    z-index: 1;
}

/* ============================================
   STATISTICS
   ============================================ */

.statistics {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-red));
    padding: 80px 0;
    color: white;
}

.statistics .container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 50px;
}

.stat-card {
    text-align: center;
    animation: fadeInUp 0.8s ease-out forwards;
    opacity: 0;
}

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

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

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

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

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

.stat-number {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 10px;
}

.stat-label {
    font-size: 16px;
    opacity: 0.9;
    font-weight: 300;
}

/* ============================================
   TESTIMONIALS
   ============================================ */

.testimonials {
    background: white;
}

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

.testimonial-card {
    background: linear-gradient(135deg, var(--accent-light-blue), white);
    padding: 40px;
    border-radius: 15px;
    border-left: 4px solid var(--primary-blue);
    box-shadow: var(--shadow-md);
    opacity: 0;
    transform: translateX(50px);
    transition: var(--transition);
    position: absolute;
    width: 100%;
    pointer-events: none;
}

.testimonial-card.active {
    opacity: 1;
    transform: translateX(0);
    position: relative;
    pointer-events: auto;
}

.testimonial-rating {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
}

.testimonial-rating i {
    color: #FFC107;
    font-size: 16px;
}

.testimonial-text {
    font-size: 16px;
    color: var(--text-dark);
    margin-bottom: 25px;
    font-style: italic;
    line-height: 1.8;
}

.testimonial-author h4 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 3px;
}

.testimonial-author p {
    font-size: 13px;
    color: var(--text-light);
}

.testimonial-nav {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 40px;
}

.testimonial-prev,
.testimonial-next {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: var(--accent-light-blue);
    border: 2px solid var(--primary-blue);
    color: var(--primary-blue);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    font-size: 18px;
}

.testimonial-prev:hover,
.testimonial-next:hover {
    background: var(--primary-blue);
    color: white;
    transform: scale(1.1);
}

/* ============================================
   ENQUIRY CTA
   ============================================ */

.enquiry-cta {
    background: linear-gradient(135deg, var(--primary-blue), var(--secondary-red));
    color: white;
    text-align: center;
    padding: 80px 0;
}

.cta-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: 42px;
    font-weight: 700;
    margin-bottom: 15px;
}

.cta-content p {
    font-size: 18px;
    margin-bottom: 30px;
    opacity: 0.95;
}

/* ============================================
   CONTACT FORM
   ============================================ */

.contact-preview {
    background: white;
}

.contact-form-wrapper {
    max-width: 600px;
    margin: 0 auto;
    background: linear-gradient(135deg, var(--accent-light-blue), white);
    padding: 40px;
    border-radius: 15px;
    box-shadow: var(--shadow-md);
    border: 1px solid rgba(0, 61, 165, 0.1);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 15px;
}

.contact-form input,
.contact-form textarea,
.contact-form select {
    padding: 14px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
    transition: var(--transition);
}

.contact-form input:focus,
.contact-form textarea:focus,
.contact-form select:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(0, 61, 165, 0.1);
}

.contact-form textarea {
    resize: vertical;
    grid-column: 1 / -1;
}

/* ============================================
   FOOTER
   ============================================ */

.footer {
    background: linear-gradient(135deg, #1a1a1a, #2a2a2a);
    color: white;
    padding: 60px 0 20px;
}

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

.footer-col h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 20px;
    color: white;
}

.footer-col p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 10px;
    line-height: 1.8;
}

.footer-col a {
    display: block;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    margin-bottom: 8px;
    transition: var(--transition);
}

.footer-col a:hover {
    color: var(--primary-blue);
    padding-left: 5px;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 15px;
}

.social-links a {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    margin: 0;
    font-size: 18px;
}

.social-links a:hover {
    background: var(--primary-blue);
    transform: translateY(-3px);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-bottom p {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.6);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-blue);
}

/* ============================================
   MODAL
   ============================================ */

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

.modal-content {
    background-color: white;
    margin: 10% auto;
    padding: 40px;
    border-radius: 15px;
    width: 90%;
    max-width: 500px;
    box-shadow: var(--shadow-lg);
    animation: slideDown 0.3s ease;
}

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

.modal-content h2 {
    font-family: 'Playfair Display', serif;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 25px;
    color: var(--text-dark);
}

.modal-content form {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.modal-content input,
.modal-content textarea,
.modal-content select {
    padding: 12px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    font-family: 'Poppins', sans-serif;
    font-size: 14px;
}

.close-modal {
    color: var(--text-light);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: var(--transition);
}

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

.product-details-image {
    width: 100%;
    height: 220px;
    object-fit: contain;
    background: var(--accent-light-blue);
    border-radius: 10px;
    margin-bottom: 20px;
}

.product-details-desc {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 25px;
}

/* ============================================
   TWO-COLUMN RESPONSIVE GRID UTILITY
   ============================================ */

.two-col-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 50px;
}

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

@media (max-width: 768px) {
    .main-nav {
        display: none;
    }

    .mobile-menu-toggle {
        display: flex;
    }

    .mobile-nav.active {
        display: flex;
    }

    .header-container {
        flex-wrap: wrap;
    }

    .enquiry-btn {
        padding: 10px 20px;
        font-size: 13px;
    }

    .hero-slider {
        height: 400px;
    }

    .hero-title {
        font-size: 32px;
    }

    .hero-subtitle {
        font-size: 16px;
    }

    .hero-buttons {
        gap: 10px;
        flex-direction: column;
        align-items: center;
        width: 100%;
    }

    .hero-buttons .btn {
        width: 100%;
        max-width: 280px;
    }

    .two-col-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .btn {
        padding: 10px 20px;
        font-size: 13px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .about-grid,
    .product-grid,
    .reasons-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
    
    .modal-content {
        width: 95%;
        margin: 30% auto;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .product-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 480px) {
    .header-container {
        padding: 10px;
        gap: 10px;
    }

    .logo {
        height: 35px;
    }

    .company-name {
        font-size: 16px;
    }

    .hero-slider {
        height: 340px;
    }

    .hero-title {
        font-size: 24px;
    }

    .hero-subtitle {
        font-size: 14px;
    }

    .section-header h2 {
        font-size: 22px;
    }

    section {
        padding: 50px 0;
    }

    .about-card,
    .reason-card {
        padding: 25px 15px;
    }

    .contact-form-wrapper {
        padding: 25px;
    }
}

/* ============================================
   ANIMATIONS
   ============================================ */

@keyframes slideInLeft {
    from {
        opacity: 0;
        transform: translateX(-30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(30px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

/* Scroll animations */
.element-in-view {
    animation: slideInUp 0.6s ease-out;
}