/* ===== RESET & BASE STYLES ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #dc3545;
    --secondary-color: #6c757d;
    --accent-color: #007bff;
    --light-bg: #ffffff;
    --card-bg: #ffffff;
    --text-primary: #333333;
    --text-secondary: #666666;
    --border-color: #dee2e6;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.15);
    --success-color: #28a745;
    --warning-color: #ffc107;
    --danger-color: #dc3545;
}

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

/* ===== SCROLLBAR STYLING ===== */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.1);
}

::-webkit-scrollbar-thumb {
    background: var(--gradient-neon);
    border-radius: 5px;
}

/* ===== NAVIGATION ===== */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-color);
    box-shadow: 0 2px 10px var(--shadow-light);
}

.navbar {
    padding: 1rem 0;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
    color: var(--primary-color);
}

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

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.3s ease;
    position: relative;
    padding: 0.5rem 1rem;
    border-radius: 25px;
}

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(255, 0, 110, 0.1);
    transform: translateY(-2px);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--gradient-neon);
    transform: translateX(-50%);
    transition: width 0.3s ease;
}

.nav-link:hover::after {
    width: 80%;
}

.admin-btn {
    background: var(--primary-color);
    color: white !important;
    border: none;
    padding: 0.5rem 1.5rem;
    border-radius: 25px;
    font-weight: 600;
}

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

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-primary);
    margin: 3px 0;
    transition: 0.3s;
}

/* ===== HERO SLIDESHOW ===== */
.hero-slideshow {
    position: relative;
    width: 100%;
    max-width: 1280px;
    height: auto;
    min-height: 360px;
    margin: 70px auto 0;
    padding: 0 1rem;
}

.slideshow-container {
    position: relative;
    width: 100%;
    padding-bottom: 56.25%; /* 16:9 Aspect Ratio */
    min-height: 360px;
}

.slide {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    transition: opacity 1s ease-in-out;
    border-radius: 15px;
    overflow: hidden;
    min-width: 640px;
    margin: 0 auto;
}

.slide.active {
    opacity: 1;
}

.slide img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: 15px;
    min-width: 640px;
}

.slide-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(to top, rgba(0,0,0,0.8) 0%, transparent 100%);
    padding: 3rem 2rem 2rem;
    border-radius: 0 0 15px 15px;
    z-index: 2;
}

.slide-overlay h2 {
    font-size: 2.5rem;
    font-weight: bold;
    color: white;
    margin-bottom: 0.5rem;
    text-shadow: 2px 2px 4px rgba(0,0,0,0.5);
}

.slide-overlay p {
    font-size: 1.2rem;
    color: rgba(255,255,255,0.9);
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
}

.slideshow-btn {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(255,255,255,0.2);
    backdrop-filter: blur(10px);
    border: 2px solid rgba(255,255,255,0.3);
    color: white;
    font-size: 1.2rem;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    z-index: 10;
    display: flex;
    align-items: center;
    justify-content: center;
}

.slideshow-btn:hover {
    background: rgba(255,255,255,0.3);
    border-color: rgba(255,255,255,0.5);
    transform: translateY(-50%) scale(1.1);
}

.prev-btn {
    left: 20px;
}

.next-btn {
    right: 20px;
}

.slide-dots {
    position: absolute;
    bottom: 20px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 12px;
    z-index: 10;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: rgba(255,255,255,0.4);
    cursor: pointer;
    transition: all 0.3s ease;
    border: 2px solid rgba(255,255,255,0.6);
}

.dot:hover {
    background: rgba(255,255,255,0.6);
}

.dot.active {
    background: white;
    transform: scale(1.2);
}

/* ===== BUTTONS ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border: none;
    border-radius: 50px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 15px rgba(220, 53, 69, 0.3);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 20px rgba(220, 53, 69, 0.4);
}

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

.btn-secondary:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
    transform: translateY(-3px);
}

/* ===== FEATURES SECTION ===== */
.features {
    padding: 5rem 2rem;
    background: var(--light-bg);
}

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

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--primary-color);
}

.section-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 3rem;
    font-size: 1.1rem;
}

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

.feature-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    box-shadow: 0 4px 15px var(--shadow-light);
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--primary-color);
    transform: scaleX(0);
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-color);
    box-shadow: 0 15px 35px var(--shadow-medium);
}

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

.feature-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 1.5rem;
    background: var(--primary-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: white;
    animation: pulse 2s infinite;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.6;
}

/* ===== PORTFOLIO SECTION ===== */
.portfolio {
    padding: 5rem 2rem;
    background: #f8f9fa;
}

.thumbnail-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.thumbnail-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    transition: all 0.3s ease;
    position: relative;
    box-shadow: 0 4px 15px var(--shadow-light);
}

.thumbnail-card:hover {
    transform: translateY(-10px) scale(1.02);
    box-shadow: 0 20px 40px var(--shadow-medium);
    border-color: var(--primary-color);
}

.thumbnail-image {
    width: 100%;
    height: 200px;
    object-fit: cover;
    transition: transform 0.3s ease;
}

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

.thumbnail-info {
    padding: 1.5rem;
}

.thumbnail-price {
    font-size: 1.25rem;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.thumbnail-description {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.whatsapp-btn {
    width: 100%;
    background: #25d366;
    color: white;
    border: none;
    padding: 0.75rem 1rem;
    border-radius: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.whatsapp-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(37, 211, 102, 0.4);
}

.no-thumbnails {
    text-align: center;
    padding: 4rem 2rem;
    color: var(--text-secondary);
}

.no-thumbnails i {
    font-size: 4rem;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.no-thumbnails h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

/* ===== CONTACT SECTION ===== */
.contact {
    padding: 5rem 2rem;
    background: linear-gradient(180deg, #f8f9fa 0%, var(--light-bg) 100%);
}

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.contact-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    text-align: center;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px var(--shadow-light);
}

.contact-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-color);
    box-shadow: 0 8px 25px var(--shadow-medium);
}

.contact-card i {
    font-size: 3rem;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.contact-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.contact-card p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.contact-form {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 2rem;
    box-shadow: 0 4px 15px var(--shadow-light);
}

.contact-form h3 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    text-align: center;
}

.contact-form input,
.contact-form textarea {
    width: 100%;
    padding: 1rem;
    margin-bottom: 1rem;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: all 0.3s ease;
}

.contact-form input:focus,
.contact-form textarea:focus {
    outline: none;
    border-color: #333;
    background: rgba(255, 255, 255, 0.9);
    box-shadow: 0 0 0 3px rgba(255, 0, 110, 0.1);
}

.contact-form textarea {
    resize: vertical;
    min-height: 120px;
}

/* ===== FOOTER ===== */
.footer {
    background: #fff;
    padding: 2rem;
    text-align: center;
    border-top: 1px solid var(--border-color);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-size: 1.25rem;
    font-weight: bold;
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.footer p {
    color: var(--text-secondary);
}

/* ===== ANIMATIONS ===== */
@keyframes glow {
    from {
        box-shadow: 0 0 5px rgba(220, 53, 69, 0.3);
    }
    to {
        box-shadow: 0 0 15px rgba(220, 53, 69, 0.5);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-20px);
    }
}

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(50px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.05);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 1280px) {
    .hero-slideshow {
        max-width: 100%;
    }
    
    .slide-overlay h2 {
        font-size: 2.2rem;
    }
    
    .slide-overlay p {
        font-size: 1.1rem;
    }
}

@media (max-width: 1024px) {
    .hero-slideshow {
        padding: 0 1.5rem;
    }
    
    .slide-overlay h2 {
        font-size: 2rem;
    }
    
    .slide-overlay p {
        font-size: 1rem;
    }
    
    .slideshow-btn {
        width: 45px;
        height: 45px;
        font-size: 1rem;
    }
    
    .prev-btn {
        left: 15px;
    }
    
    .next-btn {
        right: 15px;
    }
}

@media (max-width: 768px) {
    .hero-slideshow {
        margin-top: 60px;
        padding: 0 1rem;
    }
    
    .slide {
        border-radius: 12px;
        min-width: 640px;
    }
    
    .slide img {
        border-radius: 12px;
    }
    
    .slide-overlay {
        padding: 2rem 1.5rem 1.5rem;
        border-radius: 0 0 12px 12px;
    }
    
    .slide-overlay h2 {
        font-size: 1.5rem;
        margin-bottom: 0.25rem;
    }
    
    .slide-overlay p {
        font-size: 0.9rem;
    }
    
    .slideshow-btn {
        width: 40px;
        height: 40px;
        font-size: 0.9rem;
    }
    
    .prev-btn {
        left: 10px;
    }
    
    .next-btn {
        right: 10px;
    }
    
    .slide-dots {
        bottom: 15px;
        gap: 8px;
    }
    
    .dot {
        width: 10px;
        height: 10px;
    }
}

@media (max-width: 640px) {
    .hero-slideshow {
        padding: 0 0.5rem;
    }
    
    .slide {
        border-radius: 10px;
        min-width: 320px;
    }
    
    .slide img {
        border-radius: 10px;
        min-width: 320px;
    }
    
    .slide-overlay {
        padding: 1.5rem 1rem 1rem;
        border-radius: 0 0 10px 10px;
    }
    
    .slide-overlay h2 {
        font-size: 1.2rem;
        margin-bottom: 0.25rem;
    }
    
    .slide-overlay p {
        font-size: 0.8rem;
    }
    
    .slideshow-btn {
        width: 35px;
        height: 35px;
        font-size: 0.8rem;
    }
    
    .prev-btn {
        left: 8px;
    }
    
    .next-btn {
        right: 8px;
    }
    
    .slide-dots {
        bottom: 10px;
        gap: 6px;
    }
    
    .dot {
        width: 8px;
        height: 8px;
    }
}

@media (max-width: 480px) {
    .hero-slideshow {
        padding: 0 0.25rem;
    }
    
    .slide {
        border-radius: 8px;
        min-width: 280px;
    }
    
    .slide img {
        border-radius: 8px;
        min-width: 280px;
    }
    
    .slide-overlay {
        padding: 1rem 0.75rem 0.75rem;
        border-radius: 0 0 8px 8px;
    }
    
    .slide-overlay h2 {
        font-size: 1rem;
        margin-bottom: 0.2rem;
    }
    
    .slide-overlay p {
        font-size: 0.7rem;
    }
    
    .slideshow-btn {
        width: 30px;
        height: 30px;
        font-size: 0.7rem;
    }
    
    .prev-btn {
        left: 5px;
    }
    
    .next-btn {
        right: 5px;
    }
}

@media (max-width: 360px) {
    .slide-overlay h2 {
        font-size: 0.9rem;
    }
    
    .slide-overlay p {
        font-size: 0.6rem;
    }
    
    .slideshow-btn {
        width: 25px;
        height: 25px;
        font-size: 0.6rem;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        display: none;
        position: fixed;
        top: 70px;
        left: 0;
        right: 0;
        background: white;
        flex-direction: column;
        padding: 2rem;
        box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
        border-top: 1px solid var(--border-color);
    }
    
    .nav-menu.active {
        display: flex;
    }
    
    .nav-link {
        padding: 1rem;
        border-bottom: 1px solid #f0f0f0;
        width: 100%;
        text-align: center;
    }
    
    .nav-link:last-child {
        border-bottom: none;
    }
    
    .hamburger {
        display: flex;
        flex-direction: column;
        cursor: pointer;
        z-index: 1001;
    }
    
    .hamburger span {
        width: 25px;
        height: 3px;
        background: var(--primary-color);
        margin: 3px 0;
        transition: 0.3s;
        border-radius: 2px;
    }
    
    .hamburger.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .hamburger.active span:nth-child(2) {
        opacity: 0;
    }
    
    .hamburger.active span:nth-child(3) {
        transform: rotate(-45deg) translate(7px, -6px);
    }
    
    .hero {
        flex-direction: column;
        text-align: center;
        padding: 5rem 1rem 2rem;
        min-height: auto;
    }
    
    .hero-content {
        animation: slideInUp 1s ease-out;
    }
    
    .hero-title {
        font-size: 2.2rem;
        line-height: 1.3;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
        margin-bottom: 2rem;
    }
    
    .hero-buttons {
        flex-direction: column;
        align-items: center;
        gap: 1rem;
        width: 100%;
    }
    
    .btn {
        width: 100%;
        max-width: 280px;
        justify-content: center;
        padding: 1rem 2rem;
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .features-grid,
    .thumbnail-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .section-title {
        font-size: 2rem;
        margin-bottom: 2rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .features,
    .portfolio,
    .contact {
        padding: 3rem 0;
    }
}

@media (max-width: 480px) {
    .nav-container {
        padding: 0 1rem;
    }
    
    .logo {
        font-size: 1.3rem;
    }
    
    .logo i {
        font-size: 1.8rem;
    }
    
    .hero {
        padding: 4rem 0.75rem 2rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
        line-height: 1.2;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        margin-bottom: 1.5rem;
    }
    
    .btn {
        padding: 0.875rem 1.5rem;
        font-size: 0.95rem;
    }
    
    .feature-card,
    .contact-card,
    .contact-form {
        padding: 1.5rem;
    }
    
    .feature-icon {
        width: 60px;
        height: 60px;
        font-size: 1.5rem;
    }
    
    .thumbnail-card {
        border-radius: 15px;
    }
    
    .thumbnail-image {
        height: 180px;
    }
    
    .thumbnail-info {
        padding: 1rem;
    }
    
    .whatsapp-btn {
        padding: 0.6rem 1rem;
        font-size: 0.9rem;
    }
    
    .contact-form input,
    .contact-form textarea {
        padding: 0.875rem;
    }
    
    .section-title {
        font-size: 1.75rem;
    }
    
    .section-subtitle {
        font-size: 1rem;
    }
}

@media (max-width: 360px) {
    .hero-title {
        font-size: 1.6rem;
    }
    
    .btn {
        padding: 0.75rem 1.25rem;
        font-size: 0.9rem;
    }
    
    .feature-card,
    .contact-card,
    .contact-form {
        padding: 1.25rem;
    }
    
    .feature-icon {
        width: 50px;
        height: 50px;
        font-size: 1.3rem;
    }
}

/* ===== MOBILE-SPECIFIC ANIMATIONS ===== */
@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== MOBILE TOUCH OPTIMIZATIONS ===== */
@media (hover: none) and (pointer: coarse) {
    .btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .nav-link {
        min-height: 44px;
        display: flex;
        align-items: center;
        justify-content: center;
    }
    
    .thumbnail-card:hover,
    .feature-card:hover,
    .contact-card:hover {
        transform: none;
    }
    
    .thumbnail-card:active,
    .feature-card:active,
    .contact-card:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
}

/* ===== LANDSCAPE MOBILE ===== */
@media (max-width: 768px) and (orientation: landscape) {
    .hero {
        min-height: auto;
        padding: 2rem 1rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-buttons {
        flex-direction: row;
        justify-content: center;
    }
    
    .btn {
        width: auto;
        max-width: 200px;
    }
}

/* ===== TABLET OPTIMIZATIONS ===== */
@media (min-width: 769px) and (max-width: 1024px) {
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .thumbnail-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content {
        max-width: 60%;
    }
    
    .hero-animation {
        max-width: 35%;
    }
}

/* ===== LOADING ANIMATION ===== */
.loading {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary-color);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}