/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #003d5c;
    --secondary-color: #0066a1;
    --accent-color: #00a3e0;
    --dark: #1a1a1a;
    --gray: #5a5a5a;
    --light-gray: #f8f9fa;
    --white: #ffffff;
    --transition: all 0.3s ease;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    box-shadow: 0 1px 0 rgba(255,255,255,0.1);
    z-index: 1000;
    transition: all 0.4s ease;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.navbar.scrolled {
    background: rgba(0, 61, 92, 0.95);
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
    border-bottom: 1px solid rgba(0, 163, 224, 0.3);
}

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

.nav-brand {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: -0.5px;
    text-shadow: 0 2px 10px rgba(0,0,0,0.2);
    transition: var(--transition);
    background: linear-gradient(135deg, #ffffff 0%, #e0f2ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-brand:hover {
    transform: scale(1.05);
    letter-spacing: 0px;
}

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

.nav-link {
    text-decoration: none;
    color: rgba(255, 255, 255, 0.9);
    font-weight: 600;
    font-size: 0.95rem;
    transition: var(--transition);
    position: relative;
    padding: 0.5rem 0;
    text-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, #00a3e0, #ffffff);
    transition: var(--transition);
    box-shadow: 0 0 10px rgba(0, 163, 224, 0.5);
}

.nav-link:hover {
    color: #ffffff;
    text-shadow: 0 0 10px rgba(255,255,255,0.5);
    transform: translateY(-2px);
}

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

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--white);
    transition: var(--transition);
    box-shadow: 0 1px 3px rgba(0,0,0,0.2);
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 85vh;
    height: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #001d33 0%, #003d5c 50%, #0066a1 100%);
    overflow: hidden;
    padding: 8rem 0 4rem;
}

.hero-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 50% 50%, rgba(0, 61, 92, 0.4) 0%, rgba(0, 29, 51, 0.8) 100%);
    overflow: hidden;
}

.hero-overlay::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 163, 224, 0.1) 0%, transparent 70%);
    animation: rotate 30s linear infinite;
}

@keyframes rotate {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Hero Slider */
.hero-slider {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0.2;
    z-index: 1;
}

.slider-track {
    display: flex;
    gap: 2rem;
    animation: slideLeft 60s linear infinite;
    will-change: transform;
}

.slider-track:hover {
    animation-play-state: paused;
}

.slider-item {
    flex-shrink: 0;
    width: 250px;
    height: 350px;
    border-radius: 10px;
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    transition: transform 0.3s ease;
}

.slider-item:hover {
    transform: scale(1.05) translateY(-10px);
}

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

@keyframes slideLeft {
    0% {
        transform: translateX(0);
    }
    100% {
        transform: translateX(-50%);
    }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    color: var(--white);
    max-width: 1000px;
    padding: 2rem;
    animation: fadeInUp 1.2s ease;
}

.hero-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 3.5rem;
    font-weight: 900;
    margin-bottom: 1.2rem;
    animation: fadeInUp 1s ease;
    letter-spacing: -2px;
    background: linear-gradient(135deg, #ffffff 0%, #00a3e0 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    text-shadow: 0 10px 40px rgba(0, 163, 224, 0.3);
    line-height: 1.2;
}

.hero-description {
    font-size: 1.15rem;
    margin-bottom: 2rem;
    opacity: 0.95;
    line-height: 1.8;
    animation: fadeInUp 1s ease 0.2s backwards;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 300;
    color: rgba(255, 255, 255, 0.95);
    text-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

.btn-primary {
    display: inline-block;
    padding: 1.2rem 3rem;
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    font-size: 1.05rem;
    border-radius: 50px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    transition: all 0.4s ease;
    animation: fadeInUp 1s ease 0.4s backwards;
    box-shadow: 0 8px 32px rgba(0, 163, 224, 0.2);
    position: relative;
    overflow: hidden;
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
    transition: left 0.5s ease;
}

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

.btn-primary:hover {
    transform: translateY(-5px) scale(1.05);
    box-shadow: 0 15px 50px rgba(0, 163, 224, 0.4);
    background: rgba(0, 163, 224, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
}

.scroll-indicator {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    animation: bounce 2s infinite;
}

.scroll-indicator span {
    display: block;
    width: 30px;
    height: 50px;
    border: 2px solid var(--white);
    border-radius: 20px;
    position: relative;
}

.scroll-indicator span::before {
    content: '';
    position: absolute;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    width: 6px;
    height: 10px;
    background: var(--white);
    border-radius: 3px;
    animation: scroll 2s infinite;
}

/* Sections */
section {
    padding: 80px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
    position: relative;
    z-index: 1;
}

.section-title {
    font-family: 'Montserrat', sans-serif;
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 1rem;
    letter-spacing: -1.5px;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    border-radius: 2px;
}

.section-line {
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    margin: 0 auto 1.5rem;
    border-radius: 2px;
    box-shadow: 0 2px 10px rgba(0, 61, 92, 0.2);
}

.section-subtitle {
    font-size: 1.15rem;
    color: var(--gray);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.8;
    font-weight: 400;
}

/* Services Section */
.services {
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
    position: relative;
    overflow: hidden;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(0, 163, 224, 0.03) 0%, transparent 50%),
                radial-gradient(circle at 80% 50%, rgba(0, 61, 92, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.service-card {
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    padding: 2.5rem 2rem;
    border-radius: 20px;
    text-align: center;
    transition: all 0.4s ease;
    box-shadow: 0 8px 32px rgba(0,0,0,0.08);
    border: 1px solid rgba(255, 255, 255, 0.8);
    position: relative;
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-color), var(--accent-color));
    transform: scaleX(0);
    transition: transform 0.4s ease;
}

.service-card:hover::before {
    transform: scaleX(1);
}

.service-card:hover {
    transform: translateY(-15px);
    box-shadow: 0 20px 60px rgba(0, 61, 92, 0.15);
    background: rgba(255, 255, 255, 0.95);
    border-color: rgba(0, 163, 224, 0.3);
}

.service-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 1.5rem;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: 0 8px 24px rgba(0, 61, 92, 0.2);
    transition: all 0.4s ease;
}

.service-card:hover .service-icon {
    transform: scale(1.1) rotateY(360deg);
    box-shadow: 0 12px 32px rgba(0, 163, 224, 0.3);
}

.service-card h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.4rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--dark);
    letter-spacing: -0.5px;
    transition: color 0.3s ease;
}

.service-card:hover h3 {
    color: var(--primary-color);
}

.service-card p {
    font-size: 1rem;
    color: var(--gray);
    line-height: 1.8;
    font-weight: 400;
}

/* Portfolio Grid */
.portfolio {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
    position: relative;
}

.portfolio::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 50%;
    height: 100%;
    background: radial-gradient(circle at 80% 20%, rgba(0, 163, 224, 0.03) 0%, transparent 50%);
    pointer-events: none;
}

.sustainability-section {
    background: linear-gradient(180deg, #f8f9fa 0%, #ffffff 100%);
}

.magazines-section {
    background: linear-gradient(180deg, #ffffff 0%, #f8f9fa 100%);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 2rem;
}

.magazines-grid {
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 20px;
    background: var(--white);
    box-shadow: 0 8px 30px rgba(0,0,0,0.08);
    transition: all 0.4s ease;
    cursor: pointer;
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
    border: 1px solid rgba(0, 61, 92, 0.05);
}

.portfolio-item:hover {
    transform: translateY(-12px) scale(1.02);
    box-shadow: 0 20px 60px rgba(0, 61, 92, 0.15);
    border-color: rgba(0, 163, 224, 0.2);
}

.portfolio-image {
    width: 100%;
    height: auto;
    object-fit: contain;
    display: block;
    transition: var(--transition);
    background: #f8f9fa;
}

.portfolio-image.lazy-image {
    filter: blur(10px);
    opacity: 0.8;
    transition: filter 0.5s ease, opacity 0.5s ease;
}

.portfolio-image.lazy-image.loaded {
    filter: blur(0);
    opacity: 1;
}

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

.portfolio-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.9) 0%, transparent 100%);
    padding: 2rem;
    transform: translateY(100%);
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    transform: translateY(0);
}

.portfolio-title {
    color: var(--white);
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.portfolio-category {
    color: var(--secondary-color);
    font-size: 0.9rem;
}

/* Lazy loading placeholder */
.portfolio-item img[data-src] {
    background: linear-gradient(90deg, #f0f0f0 25%, #e0e0e0 50%, #f0f0f0 75%);
    background-size: 200% 100%;
    animation: loading 1.5s infinite;
}

/* Contact Section */
.contact {
    background: var(--light-gray);
}

/* Quick Actions */
.quick-actions {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.btn-action {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1.2rem 2.5rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 1.05rem;
    transition: var(--transition);
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    cursor: pointer;
    border: none;
    text-decoration: none;
}

.btn-action svg {
    flex-shrink: 0;
}

.btn-action.btn-whatsapp {
    background: #25D366;
    color: var(--white);
}

.btn-action.btn-whatsapp:hover {
    background: #128C7E;
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.4);
}

.btn-action.btn-requirement {
    background: var(--primary-color);
    color: var(--white);
}

.btn-action.btn-requirement:hover {
    background: var(--secondary-color);
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(0, 61, 92, 0.4);
}

.btn-action.btn-payment-info {
    background: var(--white);
    color: var(--dark);
    border: 2px solid #e0e0e0;
    cursor: default;
    flex-direction: column;
    align-items: flex-start;
    padding: 1rem 2rem;
}

.btn-action.btn-payment-info:hover {
    transform: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
}

.btn-action.btn-payment-info > div {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.btn-action .btn-text {
    font-weight: 600;
    font-size: 1.05rem;
}

.btn-action small {
    font-size: 0.85rem;
    color: var(--gray);
    font-weight: 400;
}

.contact-content {
    max-width: 1200px;
    margin: 0 auto;
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.contact-info {
    text-align: left;
}

.contact-info h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

.contact-info p {
    font-size: 1.1rem;
    color: var(--gray);
    margin-bottom: 2rem;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    color: var(--dark);
}

.contact-item svg {
    color: var(--primary-color);
    flex-shrink: 0;
}

.contact-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.btn-whatsapp {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 1.8rem;
    background: #25D366;
    color: var(--white);
    text-decoration: none;
    border-radius: 50px;
    font-weight: 600;
    transition: var(--transition);
}

.btn-whatsapp:hover {
    background: #128C7E;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.3);
}

.btn-requirement {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 1.8rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1rem;
}

.btn-requirement:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 61, 92, 0.3);
}

/* Contact Form */
.contact-form-wrapper {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 15px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.contact-form h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--dark);
    font-weight: 500;
    font-size: 0.95rem;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    padding: 0.9rem 1.2rem;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: var(--transition);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 61, 92, 0.1);
}

.form-group textarea {
    resize: vertical;
}

.btn-submit {
    width: 100%;
    padding: 1rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 61, 92, 0.3);
}

/* PayPal Section */
.paypal-section {
    margin-top: 2.5rem;
    padding: 2.5rem 2rem;
    border-top: 2px solid var(--light-gray);
    background: #f8f9fa;
    border-radius: 10px;
    scroll-margin-top: 80px;
    scroll-padding-top: 80px;
}

.paypal-section h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--dark);
}

.paypal-section p {
    color: var(--gray);
    margin-bottom: 1.5rem;
    font-size: 0.95rem;
}

#paypal-button-container {
    max-width: 350px;
    margin: 0;
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.8);
    z-index: 3000;
    overflow-y: auto;
    padding: 2rem;
}

.modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.modal-content {
    background: var(--white);
    border-radius: 15px;
    max-width: 900px;
    width: 100%;
    padding: 3rem;
    position: relative;
    margin: 2rem auto;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.modal-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    color: var(--gray);
    cursor: pointer;
    transition: var(--transition);
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
}

.modal-close:hover {
    color: var(--dark);
    background: var(--light-gray);
}

.modal-content h2 {
    font-family: 'Montserrat', sans-serif;
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    color: var(--primary-color);
}

.modal-subtitle {
    color: var(--gray);
    margin-bottom: 2rem;
    font-size: 1rem;
}

.requirement-form .form-section {
    margin-bottom: 2.5rem;
    padding-bottom: 2rem;
    border-bottom: 2px solid var(--light-gray);
}

.requirement-form .form-section:last-of-type {
    border-bottom: none;
}

.requirement-form .form-section h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.3rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    color: var(--dark);
}

.checkbox-group {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 0.8rem;
}

.checkbox-group label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    font-weight: 400;
}

.checkbox-group input[type="checkbox"] {
    width: auto;
    cursor: pointer;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.btn-submit-req {
    padding: 1rem 2.5rem;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-submit-req:hover {
    background: var(--secondary-color);
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0, 61, 92, 0.3);
}

.btn-cancel {
    padding: 1rem 2.5rem;
    background: var(--light-gray);
    color: var(--dark);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.btn-cancel:hover {
    background: #e0e0e0;
}

/* Portfolio Section Descriptions */
.portfolio-description {
    grid-column: 1 / -1;
    max-width: 100%;
    margin: 3rem 0 2rem;
    padding: 2.5rem;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    border-left: 5px solid transparent;
    border-image: linear-gradient(180deg, var(--primary-color), var(--accent-color)) 1;
    box-shadow: 0 8px 32px rgba(0,0,0,0.06);
    position: relative;
    overflow: hidden;
}

.portfolio-description::before {
    content: '';
    position: absolute;
    top: 0;
    right: 0;
    width: 200px;
    height: 200px;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    opacity: 0.05;
    border-radius: 50%;
    transform: translate(50%, -50%);
}

.portfolio-description p {
    color: var(--gray);
    font-size: 1.05rem;
    line-height: 1.9;
    margin: 0;
    position: relative;
    z-index: 1;
    font-weight: 400;
}

.portfolio-description p strong {
    color: var(--primary-color);
    font-weight: 800;
    font-size: 1.3rem;
    display: block;
    margin-bottom: 1rem;
    font-family: 'Montserrat', sans-serif;
    letter-spacing: -0.5px;
}

/* PDF List Section */
.pdf-list-section {
    margin-top: 2rem;
    padding-top: 2rem;
    border-top: 2px solid rgba(0, 61, 92, 0.1);
}

.pdf-list-section h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pdf-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1rem;
}

.pdf-item {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 1.2rem;
    background: rgba(255, 255, 255, 0.6);
    border: 1px solid rgba(0, 61, 92, 0.1);
    border-radius: 12px;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
}

.pdf-item:hover {
    background: rgba(255, 255, 255, 1);
    border-color: var(--primary-color);
    transform: translateX(5px);
    box-shadow: 0 4px 15px rgba(0, 61, 92, 0.1);
}

.pdf-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    flex-shrink: 0;
}

.pdf-info {
    flex: 1;
}

.pdf-name {
    font-weight: 600;
    color: var(--dark);
    font-size: 0.95rem;
    margin-bottom: 0.2rem;
}

.pdf-label {
    font-size: 0.8rem;
    color: var(--gray);
}

.portfolio-description:first-of-type {
    margin-top: 0;
}

/* Vertical Tab Sidebar */
.vertical-tabs {
    position: fixed;
    right: 0;
    top: 50%;
    transform: translateY(-50%);
    z-index: 900;
    display: flex;
    flex-direction: column;
    gap: 0;
}

.vertical-tab {
    writing-mode: vertical-rl;
    text-orientation: mixed;
    padding: 1.5rem 0.8rem;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    box-shadow: -3px 0 15px rgba(0,0,0,0.1);
    border-top-left-radius: 8px;
    border-bottom-left-radius: 8px;
}

.vertical-tab:hover {
    transform: translateX(-5px);
    box-shadow: -5px 0 20px rgba(0,0,0,0.2);
}

.vertical-text {
    display: block;
}

.tab-whatsapp {
    background: linear-gradient(180deg, #25D366, #20BA5A);
    color: white;
}

.tab-requirements {
    background: linear-gradient(180deg, #0066a1, #005280);
    color: white;
}

/* Sidebar Panel */
.sidebar-panel {
    position: fixed;
    right: -350px;
    top: 0;
    width: 350px;
    height: 100vh;
    background: white;
    box-shadow: -5px 0 30px rgba(0,0,0,0.2);
    z-index: 899;
    padding: 2.5rem 2rem;
    transition: right 0.4s ease;
    overflow-y: auto;
}

.sidebar-panel.active {
    right: 0;
}

.sidebar-panel-close {
    position: absolute;
    top: 1.5rem;
    right: 1.5rem;
    font-size: 2rem;
    cursor: pointer;
    color: var(--gray);
    transition: color 0.3s ease;
    line-height: 1;
}

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

.sidebar-panel h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 1rem;
}

.sidebar-panel p {
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 2rem;
}

.panel-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    box-shadow: 0 4px 15px rgba(0,0,0,0.1);
    font-family: 'Inter', sans-serif;
}

.panel-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(0,0,0,0.15);
}

.whatsapp-btn {
    background: linear-gradient(135deg, #25D366, #20BA5A);
    color: white;
}

.requirements-btn {
    background: linear-gradient(135deg, #0066a1, #005280);
    color: white;
}

/* Portfolio Action Buttons - Flat Design */
.portfolio-action-buttons {
    grid-column: 1 / -1;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin: 4rem 0;
    flex-wrap: wrap;
}

.action-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.7rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    font-family: 'Inter', sans-serif;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.1);
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.15);
}

.action-btn:active {
    transform: translateY(0);
}

.action-btn svg {
    flex-shrink: 0;
}

/* WhatsApp Button - Flat Green */
.action-whatsapp {
    background: #25D366;
    color: #ffffff;
}

.action-whatsapp:hover {
    background: #20BA5A;
}

/* Requirement Form Button - Flat Blue */
.action-requirement {
    background: #0066a1;
    color: #ffffff;
}

.action-requirement:hover {
    background: #005280;
}

/* Payment Button - Flat Orange/Accent */
.action-payment {
    background: #FF9500;
    color: #ffffff;
}

.action-payment:hover {
    background: #E68600;
}

/* Footer */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 3rem 0 1.5rem;
}

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

.footer-brand h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.5px;
}

.footer-brand p {
    font-style: italic;
    opacity: 0.8;
    margin-bottom: 2rem;
}

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

.footer-bottom p {
    opacity: 0.6;
    font-size: 0.9rem;
}

/* Lightbox */
.lightbox {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.95);
    z-index: 2000;
    padding: 2rem;
}

.lightbox.active {
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease;
}

.lightbox-content {
    max-width: 90%;
    max-height: 90%;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.lightbox-image {
    max-width: 100%;
    max-height: 80vh;
    object-fit: contain;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.lightbox-info {
    margin-top: 2rem;
    text-align: center;
}

.lightbox-title {
    color: var(--white);
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.lightbox-download {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    background: var(--primary-color);
    color: var(--white);
    text-decoration: none;
    border-radius: 5px;
    transition: var(--transition);
}

.lightbox-download:hover {
    background: var(--secondary-color);
}

.lightbox-close {
    position: absolute;
    top: 20px;
    right: 40px;
    font-size: 3rem;
    color: var(--white);
    cursor: pointer;
    z-index: 2001;
    transition: var(--transition);
}

.lightbox-close:hover {
    color: var(--secondary-color);
}

.lightbox-prev,
.lightbox-next {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    font-size: 2rem;
    color: var(--white);
    background: rgba(255,255,255,0.1);
    border: none;
    padding: 1rem 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    border-radius: 5px;
}

.lightbox-prev:hover,
.lightbox-next:hover {
    background: rgba(255,255,255,0.2);
}

.lightbox-prev {
    left: 20px;
}

.lightbox-next {
    right: 20px;
}

/* Floating Contact Button */
.floating-contact-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background: var(--primary-color);
    color: var(--white);
    border: none;
    border-radius: 50%;
    box-shadow: 0 4px 20px rgba(0, 61, 92, 0.4);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 999;
    transition: var(--transition);
    animation: pulse 2s infinite;
}

.floating-contact-btn:hover {
    background: var(--secondary-color);
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(0, 61, 92, 0.6);
}

@keyframes pulse {
    0%, 100% {
        box-shadow: 0 4px 20px rgba(0, 61, 92, 0.4);
    }
    50% {
        box-shadow: 0 4px 30px rgba(0, 61, 92, 0.6);
    }
}

/* Side Contact Panel */
.side-contact-panel {
    position: fixed;
    top: 0;
    right: -450px;
    width: 450px;
    height: 100vh;
    background: var(--white);
    box-shadow: -5px 0 30px rgba(0,0,0,0.2);
    z-index: 1001;
    transition: right 0.4s ease;
    overflow-y: auto;
}

.side-contact-panel.active {
    right: 0;
}

.side-panel-header {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: var(--white);
    padding: 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.side-panel-header h3 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.8rem;
    font-weight: 700;
    margin: 0;
}

.side-panel-close {
    background: none;
    border: none;
    color: var(--white);
    font-size: 2.5rem;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.side-panel-close:hover {
    background: rgba(255,255,255,0.2);
}

.side-panel-content {
    padding: 2rem;
}

.side-contact-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-bottom: 2rem;
}

.side-contact-option {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1.2rem;
    background: var(--light-gray);
    border-radius: 12px;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
}

.side-contact-option:hover {
    transform: translateX(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

.side-option-icon {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.whatsapp-option .side-option-icon {
    background: #25D366;
    color: var(--white);
}

.phone-option .side-option-icon {
    background: var(--primary-color);
    color: var(--white);
}

.email-option .side-option-icon {
    background: var(--secondary-color);
    color: var(--white);
}

.side-option-text h4 {
    font-family: 'Montserrat', sans-serif;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--dark);
    margin: 0 0 0.3rem 0;
}

.side-option-text p {
    font-size: 0.95rem;
    color: var(--gray);
    margin: 0;
}

.side-panel-divider {
    text-align: center;
    position: relative;
    margin: 2rem 0;
    color: var(--gray);
    font-weight: 600;
}

.side-panel-divider::before,
.side-panel-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 35%;
    height: 1px;
    background: #e0e0e0;
}

.side-panel-divider::before {
    left: 0;
}

.side-panel-divider::after {
    right: 0;
}

.side-contact-form {
    margin-top: 1.5rem;
}

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

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateX(-50%) translateY(0);
    }
    40% {
        transform: translateX(-50%) translateY(-10px);
    }
    60% {
        transform: translateX(-50%) translateY(-5px);
    }
}

@keyframes scroll {
    0% {
        opacity: 1;
        transform: translateX(-50%) translateY(0);
    }
    100% {
        opacity: 0;
        transform: translateX(-50%) translateY(20px);
    }
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hamburger {
        display: flex;
    }

    .nav-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, rgba(0, 61, 92, 0.98) 0%, rgba(0, 102, 161, 0.98) 100%);
        backdrop-filter: blur(15px);
        flex-direction: column;
        padding: 2rem;
        gap: 1rem;
        transform: translateY(-100%);
        opacity: 0;
        pointer-events: none;
        transition: var(--transition);
        box-shadow: 0 8px 32px rgba(0,0,0,0.3);
        border-bottom: 2px solid rgba(0, 163, 224, 0.3);
    }

    .nav-menu.active {
        transform: translateY(0);
        opacity: 1;
        pointer-events: all;
    }

    .hero {
        min-height: 70vh;
        padding: 6rem 0 3rem;
    }

    .hero-title {
        font-size: 2.5rem;
        letter-spacing: -1px;
    }

    .hero-description {
        font-size: 1.05rem;
        margin-bottom: 2rem;
    }

    .btn-primary {
        padding: 1rem 2rem;
        font-size: 1rem;
    }

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

    .services-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .quick-actions {
        flex-direction: column;
        align-items: stretch;
        gap: 1rem;
    }

    .btn-action {
        justify-content: center;
        text-align: center;
    }

    .btn-action.btn-payment-info {
        align-items: center;
        text-align: center;
    }

    .contact-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

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

    .contact-details {
        align-items: center;
    }

    .checkbox-group {
        grid-template-columns: 1fr;
    }

    .modal-content {
        padding: 2rem 1.5rem;
    }

    .form-actions {
        flex-direction: column;
    }

    .btn-submit-req,
    .btn-cancel {
        width: 100%;
    }

    .portfolio-action-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .action-btn {
        width: 100%;
        justify-content: center;
    }

    .vertical-tabs {
        display: none;
    }

    .sidebar-panel {
        width: 100%;
        right: -100%;
    }

    .pdf-list {
        grid-template-columns: 1fr;
    }

    .pdf-item {
        padding: 0.8rem 1rem;
    }

    .slider-item {
        width: 180px;
        height: 250px;
    }

    .lightbox-prev,
    .lightbox-next {
        padding: 0.5rem 1rem;
        font-size: 1.5rem;
    }

    .side-contact-panel {
        width: 100%;
        right: -100%;
    }

    .floating-contact-btn {
        bottom: 20px;
        right: 20px;
        width: 55px;
        height: 55px;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 2rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    section {
        padding: 60px 0;
    }
}