/* ===========================
   GLOBAL STYLES
   =========================== */

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

:root {
    --primary-color: #1a1f36;
    --secondary-color: #6366f1;
    --accent-color: #ec4899;
    --success-color: #10b981;
    --gradient-start: #6366f1;
    --gradient-end: #8b5cf6;
    --text-dark: #1f2937;
    --text-light: #6b7280;
    --bg-light: #f9fafb;
    --bg-card: #ffffff;
    --white: #ffffff;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.07);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    overflow-x: hidden;
}

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

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

.navbar {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    box-shadow: var(--shadow);
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    transition: all 0.3s ease;
    border-bottom: 1px solid rgba(99, 102, 241, 0.1);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.logo h1 {
    color: var(--primary-color);
    font-size: 1.8rem;
    font-weight: 700;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-link {
    color: var(--text-dark);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--secondary-color);
    transition: width 0.3s ease;
}

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

.hamburger {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: all 0.3s ease;
}

/* ===========================
   HERO SECTION
   =========================== */

.hero {
    height: 100vh;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--white);
    margin-top: 70px;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.3);
}

.hero-content {
    position: relative;
    z-index: 1;
    max-width: 800px;
    padding: 20px;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: 1rem;
    animation: fadeInUp 1s ease;
}

.hero-subtitle {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    animation: fadeInUp 1.2s ease;
}

.hero-description {
    font-size: 1.1rem;
    margin-bottom: 2rem;
    opacity: 0.9;
    animation: fadeInUp 1.4s ease;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeInUp 1.6s ease;
}

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

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

.btn {
    display: inline-block;
    padding: 14px 32px;
    text-decoration: none;
    border-radius: 10px;
    font-weight: 600;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: rgba(255, 255, 255, 0.2);
    transition: left 0.3s ease;
}

.btn:hover::before {
    left: 100%;
}

.btn-primary {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

.btn-secondary {
    background: transparent;
    color: var(--white);
    border: 2px solid var(--white);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.btn-secondary:hover {
    background: var(--white);
    color: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(255, 255, 255, 0.4);
}

.btn-view-all {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    padding: 12px 28px;
    border: none;
    border-radius: 10px;
    cursor: pointer;
    font-weight: 600;
    margin-top: 1.5rem;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-view-all:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(99, 102, 241, 0.5);
}

/* ===========================
   SECTION HEADERS
   =========================== */

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

.section-header h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.section-header p {
    color: var(--text-light);
    font-size: 1.1rem;
}

/* ===========================
   PRODUCTS SECTION
   =========================== */

.products {
    padding: 80px 20px;
    background: var(--bg-light);
}

.product-categories {
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

.category-card {
    background: var(--bg-card);
    border-radius: 20px;
    padding: 2.5rem;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.category-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.category-header {
    text-align: center;
    margin-bottom: 2rem;
}

.category-header h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.category-header p {
    color: var(--text-light);
}

.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1rem;
}

.product-item {
    position: relative;
    overflow: hidden;
    border-radius: 8px;
    box-shadow: var(--shadow);
    aspect-ratio: 1;
    cursor: pointer;
    transition: transform 0.3s ease;
}

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

.product-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

/* ===========================
   IMAGE SLIDERS
   =========================== */

.slider-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 15px;
    box-shadow: var(--shadow);
}

.slider {
    display: flex;
    transition: transform 0.5s ease-in-out;
    width: 100%;
}

.slide {
    min-width: 100%;
    position: relative;
    overflow: hidden;
    border-radius: 8px;
}

.slide img {
    width: 100%;
    height: 400px;
    object-fit: cover;
    display: block;
}

.slider-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    font-size: 2rem;
    padding: 1rem 1.5rem;
    cursor: pointer;
    z-index: 10;
    transition: background 0.3s ease;
    border-radius: 5px;
}

.slider-btn:hover {
    background: rgba(0, 0, 0, 0.8);
}

.slider-btn.prev {
    left: 10px;
}

.slider-btn.next {
    right: 10px;
}

.slider-dots {
    text-align: center;
    padding: 1rem 0;
}

.dot {
    display: inline-block;
    width: 12px;
    height: 12px;
    margin: 0 5px;
    background: #ddd;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: var(--secondary-color);
    transform: scale(1.2);
}

/* ===========================
   MANAGEMENT SECTION
   =========================== */

.management {
    padding: 80px 20px;
    background: var(--bg-light);
}

.management-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2.5rem;
    margin-top: 3rem;
}

.management-card {
    background: var(--bg-card);
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.management-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-xl);
    border-color: var(--secondary-color);
}

.management-card-header {
    padding: 2rem;
    text-align: center;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
}

.management-photo {
    margin-bottom: 1.5rem;
}

.management-img {
    width: 150px;
    height: 150px;
    margin: 0 auto;
    border-radius: 50%;
    object-fit: cover;
    border: 4px solid rgba(255, 255, 255, 0.5);
    transition: all 0.3s ease;
    display: block;
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.2);
}

.management-card:hover .management-img {
    transform: scale(1.05);
    border-color: var(--white);
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.photo-placeholder {
    width: 150px;
    height: 150px;
    margin: 0 auto;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 4px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.management-card:hover .photo-placeholder {
    transform: scale(1.05);
    border-color: var(--white);
}

.photo-icon {
    font-size: 4rem;
    opacity: 0.9;
}

.management-info h3 {
    font-size: 1.8rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.position {
    font-size: 1.1rem;
    opacity: 0.9;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.divider {
    width: 60px;
    height: 3px;
    background: var(--white);
    margin: 1rem auto 0;
    border-radius: 2px;
}

.management-message {
    padding: 2rem;
}

.message-intro {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--secondary-color);
    margin-bottom: 1rem;
    text-align: center;
}

.management-message p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 1rem;
    text-align: justify;
}

.management-message p:last-child {
    margin-bottom: 0;
}

/* ===========================
   MACHINERY & FACILITIES SECTION
   =========================== */

.machinery {
    padding: 80px 20px;
    background: var(--white);
}

.machinery-slider-container {
    position: relative;
    width: 100%;
    overflow: hidden;
    border-radius: 20px;
    box-shadow: var(--shadow-xl);
    margin-top: 3rem;
}

.machinery-slider {
    display: flex;
    transition: transform 0.6s ease-in-out;
    width: 100%;
}

.machine-slide {
    min-width: 100%;
    display: flex;
    flex-direction: column;
    background: var(--bg-light);
}

.machine-image {
    width: 100%;
    height: 500px;
    overflow: hidden;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
}

.machine-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

.machine-info {
    padding: 3rem;
    background: var(--bg-card);
    text-align: center;
}

.machine-info h3 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.machine-count {
    font-size: 1.1rem;
    color: var(--secondary-color);
    font-weight: 600;
    margin-bottom: 1rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.machine-description {
    font-size: 1.1rem;
    color: var(--text-light);
    line-height: 1.8;
    max-width: 800px;
    margin: 0 auto;
}

.machine-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
    margin-top: 3rem;
}

.machine-stat-card {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: all 0.3s ease;
}

.machine-stat-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-xl);
}

.machine-stat-card h3 {
    font-size: 3rem;
    margin-bottom: 0.5rem;
    font-weight: 700;
}

.machine-stat-card p {
    font-size: 1.1rem;
    opacity: 0.95;
}

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

.about {
    padding: 80px 20px;
    background: var(--white);
}

.about-content {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 3rem;
    align-items: start;
}

.about-text h2 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.about-intro {
    font-size: 1.2rem;
    color: var(--secondary-color);
    margin-bottom: 1rem;
    font-weight: 600;
}

.about-text p {
    color: var(--text-light);
    line-height: 1.8;
    margin-bottom: 2rem;
}

.features {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.feature-item {
    display: flex;
    gap: 1rem;
    align-items: start;
}

.feature-icon {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    flex-shrink: 0;
    font-size: 1.3rem;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.feature-text h4 {
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.feature-text p {
    color: var(--text-light);
    margin: 0;
}

.about-stats {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.stat-card {
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    padding: 2rem;
    border-radius: 15px;
    text-align: center;
    box-shadow: var(--shadow-lg);
    transition: transform 0.3s ease;
}

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

.stat-card h3 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.stat-card p {
    font-size: 1rem;
    opacity: 0.9;
}

/* ===========================
   CONTACT SECTION
   =========================== */

.contact {
    padding: 80px 20px;
    background: var(--bg-light);
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    margin-top: 2rem;
}

.contact-info h3 {
    font-size: 1.8rem;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.info-item {
    display: flex;
    gap: 1rem;
    margin-bottom: 2rem;
    align-items: start;
}

.info-icon {
    font-size: 1.5rem;
    width: 50px;
    height: 50px;
    background: linear-gradient(135deg, var(--gradient-start) 0%, var(--gradient-end) 100%);
    color: var(--white);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.info-item h4 {
    color: var(--primary-color);
    margin-bottom: 0.3rem;
}

.info-item p {
    color: var(--text-light);
    margin: 0;
}

.contact-form-container {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    border: 1px solid rgba(99, 102, 241, 0.1);
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
}

.form-group label {
    color: var(--text-dark);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 14px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 10px;
    font-size: 1rem;
    font-family: inherit;
    transition: all 0.3s ease;
    background: var(--bg-light);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--secondary-color);
    background: var(--white);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
}

.btn-submit {
    width: 100%;
    padding: 15px;
    font-size: 1.1rem;
}

.form-message {
    margin-top: 1rem;
    padding: 1rem;
    border-radius: 5px;
    text-align: center;
    display: none;
}

.form-message.success {
    background: #d4edda;
    color: #155724;
    border: 1px solid #c3e6cb;
    display: block;
}

.form-message.error {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
    display: block;
}

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

.footer {
    background: var(--primary-color);
    color: var(--white);
    padding: 3rem 20px 1rem;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 2rem;
}

.footer-section h3,
.footer-section h4 {
    margin-bottom: 1rem;
}

.footer-section p {
    opacity: 0.8;
    line-height: 1.8;
}

.footer-section ul {
    list-style: none;
}

.footer-section ul li {
    margin-bottom: 0.5rem;
}

.footer-section ul li a {
    color: var(--white);
    text-decoration: none;
    opacity: 0.8;
    transition: opacity 0.3s ease;
}

.footer-section ul li a:hover {
    opacity: 1;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-bottom p {
    opacity: 0.8;
}

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

.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    overflow-y: auto;
}

.modal-content {
    background-color: var(--white);
    margin: 80px auto;
    padding: 2rem;
    border-radius: 10px;
    width: 90%;
    max-width: 1200px;
    position: relative;
}

.close {
    color: #aaa;
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    transition: color 0.3s ease;
}

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

#modalTitle {
    color: var(--primary-color);
    margin-bottom: 2rem;
}

.modal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.modal-grid .product-item {
    aspect-ratio: 1;
}

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

@media (max-width: 968px) {
    .about-content {
        grid-template-columns: 1fr;
    }

    .contact-content {
        grid-template-columns: 1fr;
    }

    .management-grid {
        grid-template-columns: 1fr;
    }

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

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .slide img {
        height: 300px;
    }

    .machine-image {
        height: 350px;
    }

    .machine-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        left: -100%;
        top: 70px;
        flex-direction: column;
        background-color: var(--white);
        width: 100%;
        text-align: center;
        transition: 0.3s;
        box-shadow: var(--shadow);
        padding: 2rem 0;
    }

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

    .hamburger {
        display: flex;
    }

    .hamburger.active span:nth-child(1) {
        transform: rotate(-45deg) translate(-5px, 6px);
    }

    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
        transform: rotate(45deg) translate(-5px, -6px);
    }

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

    .hero-subtitle {
        font-size: 1rem;
    }

    .hero-description {
        font-size: 0.9rem;
    }

    .product-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .about-stats {
        flex-direction: row;
        flex-wrap: wrap;
    }

    .stat-card {
        flex: 1 1 calc(50% - 1rem);
    }
}

@media (max-width: 480px) {
    .hero {
        height: 80vh;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .section-header h2 {
        font-size: 2rem;
    }

    .category-header h3 {
        font-size: 1.5rem;
    }

    .product-grid {
        grid-template-columns: 1fr 1fr;
        gap: 1rem;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .slide img {
        height: 200px;
    }

    .slider-btn {
        font-size: 1.5rem;
        padding: 0.5rem 1rem;
    }

    .photo-icon {
        font-size: 5rem;
    }

    .machine-image {
        height: 250px;
    }

    .machine-info {
        padding: 2rem 1.5rem;
    }

    .machine-info h3 {
        font-size: 1.5rem;
    }

    .machine-description {
        font-size: 1rem;
    }

    .machine-stat-card h3 {
        font-size: 2.5rem;
    }
}

/* ===========================
   SMOOTH SCROLLING
   =========================== */

html {
    scroll-behavior: smooth;
}

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

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

.fade-in {
    animation: fadeIn 1s ease;
}