/* ========================================
   DEG Interior - Responsive Styles
   Mobile-First Responsive Design
   ======================================== */

/* Portfolio Section Styles */
.portfolio-section {
    background: var(--color-black);
    padding: 8rem 0;
}

.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 0.75rem 2rem;
    background: transparent;
    border: 1px solid var(--color-light-gray);
    color: var(--color-text-secondary);
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 500;
    letter-spacing: 1px;
    text-transform: uppercase;
    cursor: pointer;
    border-radius: 50px;
    transition: all 0.3s var(--transition-smooth);
}

.filter-btn:hover {
    border-color: var(--color-gold);
    color: var(--color-gold);
}

.filter-btn.active {
    background: var(--color-gold);
    border-color: var(--color-gold);
    color: var(--color-black);
    box-shadow: var(--shadow-gold);
}

.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 2rem;
    padding: 0 2rem;
}

.portfolio-item {
    position: relative;
    overflow: hidden;
    border-radius: 10px;
    cursor: pointer;
    aspect-ratio: 4/3;
    background: var(--color-medium-gray);
}

.portfolio-item img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s var(--transition-smooth);
}

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

.portfolio-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(180deg, transparent 0%, rgba(0,0,0,0.9) 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 2rem;
    opacity: 0;
    transition: opacity 0.4s var(--transition-smooth);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-title {
    font-size: 1.5rem;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
    transform: translateY(20px);
    transition: transform 0.4s var(--transition-smooth);
}

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

.portfolio-category {
    font-size: 0.9rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 1px;
    transform: translateY(20px);
    transition: transform 0.4s var(--transition-smooth) 0.1s;
}

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

/* 360° Panorama Badge */
.panorama-badge {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(135deg, var(--color-gold-dark), var(--color-gold));
    color: var(--color-black);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
    z-index: 10;
    animation: pulseBadge 2s ease-in-out infinite;
}

.panorama-badge i {
    font-size: 1.1rem;
}

@keyframes pulseBadge {
    0%, 100% {
        transform: scale(1);
        box-shadow: 0 4px 15px rgba(212, 175, 55, 0.4);
    }
    50% {
        transform: scale(1.05);
        box-shadow: 0 6px 25px rgba(212, 175, 55, 0.6);
    }
}

/* 360° Tour Button */
.btn-360-tour {
    margin-top: 1rem;
    padding: 0.75rem 1.5rem;
    background: linear-gradient(135deg, var(--color-gold-dark), var(--color-gold));
    color: var(--color-black);
    border: none;
    border-radius: 50px;
    font-family: var(--font-sans);
    font-size: 0.9rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.3s var(--transition-smooth);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.3);
    transform: translateY(20px);
    opacity: 0;
}

.portfolio-item:hover .btn-360-tour {
    transform: translateY(0);
    opacity: 1;
    transition-delay: 0.2s;
}

.btn-360-tour:hover {
    transform: translateY(-3px);
    box-shadow: 0 6px 25px rgba(212, 175, 55, 0.5);
}

.btn-360-tour i {
    font-size: 1.1rem;
}

/* Portfolio Modal */
.portfolio-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(10px);
}

.modal-close {
    position: absolute;
    top: 2rem;
    right: 2rem;
    width: 50px;
    height: 50px;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--color-gold);
    color: var(--color-gold);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--transition-smooth);
    z-index: 10002;
}

.modal-close:hover {
    background: var(--color-gold);
    color: var(--color-black);
    transform: rotate(90deg);
}

.modal-content {
    max-width: 90%;
    max-height: 90vh;
    position: relative;
}

#modal-image {
    max-width: 100%;
    max-height: 80vh;
    border-radius: 10px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.8);
}

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

#modal-title {
    font-size: 2rem;
    color: var(--color-text-primary);
    margin-bottom: 0.5rem;
}

#modal-category {
    font-size: 1rem;
    color: var(--color-gold);
    text-transform: uppercase;
    letter-spacing: 2px;
}

.modal-nav {
    position: absolute;
    top: 50%;
    transform: translateY(-50%);
    width: 60px;
    height: 60px;
    background: rgba(26, 26, 26, 0.8);
    border: 1px solid var(--color-gold);
    color: var(--color-gold);
    font-size: 1.5rem;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s var(--transition-smooth);
    z-index: 10002;
}

.modal-nav:hover {
    background: var(--color-gold);
    color: var(--color-black);
    transform: translateY(-50%) scale(1.1);
}

.modal-prev {
    left: 2rem;
}

.modal-next {
    right: 2rem;
}

/* Contact Section */
.contact-section {
    background: linear-gradient(180deg, var(--color-black) 0%, var(--color-dark-gray) 100%);
    padding: 8rem 0;
}

.contact-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 5rem;
    margin-top: 4rem;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.info-block h3 {
    font-size: 1.3rem;
    color: var(--color-gold);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.info-block p {
    font-size: 1rem;
    line-height: 1.8;
    margin-bottom: 0.75rem;
}

.info-block a {
    color: var(--color-text-secondary);
    transition: color 0.3s var(--transition-smooth);
}

.info-block a:hover {
    color: var(--color-gold);
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-links a {
    width: 50px;
    height: 50px;
    background: var(--color-medium-gray);
    border: 1px solid var(--color-light-gray);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    transition: all 0.3s var(--transition-smooth);
}

.social-links a:hover {
    background: var(--color-gold);
    border-color: var(--color-gold);
    color: var(--color-black);
    box-shadow: var(--shadow-gold);
    transform: translateY(-5px);
}

.map-container {
    border-radius: 10px;
    overflow: hidden;
    border: 2px solid var(--color-gold);
    box-shadow: var(--shadow-gold);
    margin-top: 1rem;
}

/* Contact Form */
.contact-form-container {
    background: var(--color-medium-gray);
    padding: 3rem;
    border-radius: 10px;
    border: 1px solid var(--color-light-gray);
}

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

.form-group {
    position: relative;
}

.form-group input,
.form-group textarea,
.form-group select {
    width: 100%;
    background: transparent;
    border: none;
    border-bottom: 2px solid var(--color-light-gray);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    font-size: 1rem;
    padding: 1rem 0;
    outline: none;
    transition: border-color 0.3s var(--transition-smooth);
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
    border-bottom-color: var(--color-gold);
}

.form-group label {
    position: absolute;
    top: 1rem;
    left: 0;
    color: var(--color-text-muted);
    font-size: 1rem;
    pointer-events: none;
    transition: all 0.3s var(--transition-smooth);
}

.form-group input:focus ~ label,
.form-group input:not(:placeholder-shown) ~ label,
.form-group textarea:focus ~ label,
.form-group textarea:not(:placeholder-shown) ~ label,
.form-group select:focus ~ label,
.form-group select:not([value=""]) ~ label {
    top: -1rem;
    font-size: 0.85rem;
    color: var(--color-gold);
}

.form-line {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--color-gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s var(--transition-smooth);
}

.form-group input:focus ~ .form-line,
.form-group textarea:focus ~ .form-line,
.form-group select:focus ~ .form-line {
    transform: scaleX(1);
}

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

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23D4AF37' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    padding-right: 2rem;
}

.form-group select option {
    background: var(--color-medium-gray);
    color: var(--color-text-primary);
}

.form-message {
    text-align: center;
    padding: 1.5rem;
    border-radius: 10px;
    margin-top: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
}

.form-message.success {
    background: rgba(76, 175, 80, 0.2);
    border: 1px solid #4CAF50;
    color: #4CAF50;
}

.form-message.error {
    background: rgba(244, 67, 54, 0.2);
    border: 1px solid #F44336;
    color: #F44336;
}

.form-message i {
    font-size: 1.5rem;
}

/* Footer */
.footer {
    background: var(--color-black);
    padding: 4rem 0 2rem;
    border-top: 1px solid var(--color-light-gray);
}

.footer-content {
    display: grid;
    grid-template-columns: 1.5fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    width: 150px;
    height: auto;
}

.footer-tagline {
    font-size: 1.1rem;
    color: var(--color-gold);
    font-family: var(--font-serif);
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    font-size: 1.1rem;
    color: var(--color-gold);
    margin-bottom: 1.5rem;
    font-family: var(--font-sans);
}

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

.footer-column li {
    margin-bottom: 0.75rem;
}

.footer-column a {
    color: var(--color-text-secondary);
    font-size: 0.95rem;
    transition: all 0.3s var(--transition-smooth);
}

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

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid var(--color-light-gray);
}

.footer-bottom p {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

/* ========== Tablet Styles (max-width: 1024px) ========== */
@media (max-width: 1024px) {
    .about-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .about-stats {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .contact-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 3rem;
    }
    
    .footer-links {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .portfolio-grid {
        grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
        gap: 1.5rem;
    }
    
    .services-grid {
        grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    }
    
    .partners-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
        gap: 2rem 1.5rem;
    }
    
    .partner-logo {
        max-width: 180px;
        height: 110px;
    }
}

/* ========== Mobile Styles (max-width: 768px) ========== */
@media (max-width: 768px) {
    :root {
        font-size: 14px;
    }
    
    section {
        padding: 5rem 0;
    }
    
    .container,
    .container-fluid {
        padding: 0 1.5rem;
    }
    
    /* Loading Intro */
    .logo-container {
        width: 250px;
        height: 250px;
        margin-bottom: 2rem;
    }
    
    .loading-logo {
        width: 200px;
    }
    
    .loading-bar-container {
        width: 250px;
    }
    
    .skip-intro {
        bottom: 1rem;
        right: 1rem;
        padding: 0.6rem 1.2rem;
        font-size: 0.8rem;
    }
    
    /* Hero Section */
    .hero-content {
        padding: 0 1.5rem;
    }
    
    .hero-logo {
        width: 150px;
        margin-bottom: 1.5rem;
    }
    
    .hero-ctas {
        flex-direction: column;
        width: 100%;
        gap: 1rem;
    }
    
    .hero-ctas .btn {
        width: 100%;
        justify-content: center;
    }
    
    .scroll-indicator {
        bottom: 2rem;
    }
    
    /* About Section */
    .about-stats {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .stat-number {
        font-size: 2.5rem;
    }
    
    /* Services */
    .services-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
    
    .cta-text-large {
        font-size: 1.5rem;
    }
    
    /* Partners */
    .partners-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }
    
    .partner-logo {
        max-width: 100%;
        height: 100px;
        padding: 1rem;
    }
    
    /* Portfolio */
    .portfolio-filters {
        gap: 0.5rem;
        padding: 0 1rem;
    }
    
    .filter-btn {
        padding: 0.6rem 1.2rem;
        font-size: 0.8rem;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
        padding: 0 1rem;
    }
    
    .panorama-badge {
        top: 0.75rem;
        right: 0.75rem;
        padding: 0.4rem 0.8rem;
        font-size: 0.75rem;
    }
    
    .panorama-badge span {
        display: none;
    }
    
    .panorama-badge i {
        font-size: 1rem;
    }
    
    .btn-360-tour {
        padding: 0.6rem 1.2rem;
        font-size: 0.85rem;
    }
    
    .modal-close {
        top: 1rem;
        right: 1rem;
        width: 40px;
        height: 40px;
        font-size: 1.2rem;
    }
    
    .modal-nav {
        width: 50px;
        height: 50px;
        font-size: 1.2rem;
    }
    
    .modal-prev {
        left: 1rem;
    }
    
    .modal-next {
        right: 1rem;
    }
    
    #modal-title {
        font-size: 1.5rem;
    }
    
    /* Contact */
    .contact-form-container {
        padding: 2rem;
    }
    
    .social-links a {
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    /* Footer */
    .footer-links {
        grid-template-columns: 1fr;
        gap: 2rem;
    }
    
    .footer-logo {
        width: 120px;
    }
    
    /* Floating CTA */
    .floating-cta {
        bottom: 1rem;
        right: 1rem;
        padding: 0.85rem 1.5rem;
        font-size: 0.85rem;
    }
    
    .cta-text {
        display: none;
    }
    
    .floating-cta::after {
        content: 'Book Now';
    }
    
    /* Sound Toggle */
    .sound-toggle {
        top: 1rem;
        right: 1rem;
        width: 45px;
        height: 45px;
        font-size: 1.1rem;
    }
    
    /* Section Headers */
    .section-header {
        margin-bottom: 3rem;
    }
    
    .section-label {
        font-size: 0.8rem;
        letter-spacing: 2px;
        padding: 0 1.5rem;
    }
    
    .section-label::before,
    .section-label::after {
        width: 30px;
    }
}

/* ========== Small Mobile Styles (max-width: 480px) ========== */
@media (max-width: 480px) {
    .hero-logo {
        width: 120px;
    }
    
    .btn {
        padding: 0.85rem 2rem;
        font-size: 0.9rem;
    }
    
    .btn-large {
        padding: 1rem 2.5rem;
        font-size: 1rem;
    }
    
    .stat-number {
        font-size: 2rem;
    }
    
    .service-icon {
        font-size: 3rem;
    }
    
    .contact-form-container {
        padding: 1.5rem;
    }
    
    .footer {
        padding: 3rem 0 1.5rem;
    }
    
    .modal-content {
        max-width: 95%;
    }
    
    #modal-image {
        max-height: 70vh;
    }
}

/* ========== Landscape Mobile Styles ========== */
@media (max-height: 600px) and (orientation: landscape) {
    .hero-section {
        height: auto;
        min-height: 100vh;
        padding: 5rem 0;
    }
    
    .scroll-indicator {
        display: none;
    }
    
    section {
        padding: 4rem 0;
    }
}