/* ============================================
   STL Download Hub - Complete Design System
   Single CSS for all pages (Site + Admin)
   Professional & Maintainable
   ============================================ */

/* ============================================
   1. DESIGN TOKENS (Variables)
   ============================================ */
:root {
    /* Brand Colors */
    --primary: #FF1493;       /* Rosa Neon */
    --primary-dark: #E0138A;
    --primary-light: #FF44AA;
    --secondary: #EF036C;     /* Razzmatazz */
    --accent: #EE72F8;        /* Heliotrópio */
    
    /* Status Colors */
    --success: #10b981;       /* Verde Esmeralda */
    --warning: #f39c12;
    --danger: #e74c3c;
    --info: #3498db;
    
    /* Neutrals */
    --dark: #1a1a2e;
    --dark-2: #201530;       /* Roxo escuro (tom da marca) */
    --dark-3: #2a1835;       /* Magenta escuro (tom da marca) */
    --gray-100: #faf5f8;
    --gray-200: #ece4e9;
    --gray-300: #e1dae0;
    --gray-400: #d2cbd4;
    --gray-500: #b0aab2;
    --gray-600: #6e6870;
    --gray-700: #4b454a;
    --gray-800: #353238;
    --gray-900: #232124;
    
    /* Admin Colors */
    --sidebar-width: 260px;
    --sidebar-bg: #1a1a2e;
    --topbar-height: 60px;
    
    /* Effects */
    --radius: 12px;
    --radius-sm: 8px;
    --radius-lg: 20px;
    --shadow: 0 4px 20px rgba(0,0,0,0.08);
    --shadow-lg: 0 10px 40px rgba(0,0,0,0.12);
    --shadow-hover: 0 8px 30px rgba(255,20,147,0.25);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    
    /* Type Scale (major third 1.25) */
    --text-xs:   0.75rem;   /* 12px — captions, legal */
    --text-sm:   0.875rem;  /* 14px — secondary UI, metadata */
    --text-base: 1rem;      /* 16px — body text */
    --text-lg:   1.25rem;   /* 20px — subheadings, lead */
    --text-xl:   1.5rem;    /* 24px — section subheads */
    --text-2xl:  2rem;      /* 32px — section headings */
    --text-3xl:  2.5rem;    /* 40px — page headings */
    --text-4xl:  3.5rem;    /* 56px — hero displays */
}

/* ============================================
   2. RESET & BASE
   ============================================ */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font);
    color: var(--gray-800);
    background: var(--gray-100);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

ul { list-style: none; }
img { max-width: 100%; height: auto; }

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

/* ============================================
   3. SITE HEADER - 3 Sided Cube Brutalist Style
   ============================================ */
.site-header {
    background: #fff;
    position: sticky;
    top: 0;
    z-index: 100;
}

.site-header > .container {
    padding: 0 10px;
}


/* ===== CUBE MENU ===== */
.cube-menu {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    gap: 20px;
    background: #fff;
    border: 3px solid #000;
    border-radius: 5px;
    box-shadow: 8px 8px 0px #000;
    margin: 10px 0;
    position: relative;
}








/* Logo */
.cube-logo {
    display: flex;
    align-items: center;
    text-decoration: none;
    color: #000;
    flex-shrink: 0;
}

.cube-logo-box {
    background: #00ff73;
    width: 50px;
    height: 50px;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.5rem;
    border: 3px solid #000;
    flex-shrink: 0;
}

.cube-logo-box i {
    color: #000;
}

.cube-logo-text {
    margin-left: 12px;
    font-size: 1.375rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    color: #000;
}

/* Links */
.cube-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.cube-links a {
    color: #000;
    text-decoration: none;
    font-weight: 700;
    font-size: 0.9rem;
    transition: opacity 0.2s;
    white-space: nowrap;
}

.cube-links a:hover {
    opacity: 0.6;
}

/* Dropdown no Desktop */
.cube-dropdown {
    position: relative;
}

.cube-dropdown > a i {
    font-size: 0.65rem;
    margin-left: 4px;
}

.cube-dropdown-menu {
    position: absolute;
    top: calc(100% + 12px);
    left: 0;
    background: #fff;
    border: 3px solid #000;
    padding: 8px;
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: translateY(6px);
    transition: all 0.2s ease;
    z-index: 100;
    box-shadow: 6px 6px 0 #000;
}

.cube-dropdown:hover .cube-dropdown-menu {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.cube-dropdown-menu a {
    display: block;
    padding: 10px 14px;
    font-size: 0.85rem;
    font-weight: 600;
    border-radius: 0;
    transition: background 0.2s;
}

.cube-dropdown-menu a:hover {
    background: #f0f0f0;
    opacity: 1;
}

/* Direita */
.cube-right {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.cube-circle {
    width: 42px;
    height: 42px;
    border: 3px solid #000;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    text-decoration: none;
    color: #000;
    font-size: 1rem;
    transition: background 0.2s;
}

.cube-circle:hover {
    background: #f0f0f0;
}

.cube-btn {
    background: #ff008a;
    color: #fff !important;
    border: 3px solid #000;
    padding: 12px 22px;
    font-weight: 800;
    font-size: 0.8rem;
    text-decoration: none;
    transition: transform 0.15s, box-shadow 0.15s;
    white-space: nowrap;
    letter-spacing: 0.02em;
}

.cube-btn:hover {
    transform: translate(-2px, -2px);
    box-shadow: 4px 4px 0 #000;
}

/* Hamburger (mobile) */
.cube-hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    background: none;
    border: 3px solid #000;
    cursor: pointer;
    padding: 8px;
    width: 42px;
    height: 42px;
    border-radius: 0;
}

.cube-hamburger span {
    width: 20px;
    height: 3px;
    background: #000;
    border-radius: 0;
    transition: all 0.3s ease;
}

.cube-hamburger.active span:nth-child(1) {
    transform: translateY(8px) rotate(45deg);
}

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

.cube-hamburger.active span:nth-child(3) {
    transform: translateY(-8px) rotate(-45deg);
}

/* Close button (mobile) */
.cube-close {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    color: #000;
    padding: 5px;
    align-self: flex-end;
}

/* Overlay */
.cube-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9998;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.cube-overlay.active {
    opacity: 1;
}


/* Botão desktop vs mobile */
.cube-btn-mobile {
    display: none;
}

/* ===== RESPONSIVE MOBILE ===== */
@media (max-width: 768px) {
    .cube-hamburger {
        display: flex;
    }

    .cube-close {
        display: flex;
        margin-bottom: 10px;
    }

    .cube-overlay {
        display: block;
        pointer-events: none;
    }



    .cube-btn-desktop {
        display: none;
    }

    .cube-btn-mobile {
        display: block;
        text-align: center;
        margin-top: 16px;
        padding: 14px 20px;
        font-size: 0.9rem;
    }

    .cube-links {
        display: flex;
        position: fixed;
        top: 0;
        right: -100%;
        width: 85%;
        max-width: 380px;
        height: 100vh;
        height: 100dvh;
        background: #fff;
        border-left: 3px solid #000;
        flex-direction: column;
        align-items: stretch;
        padding: 20px;
        z-index: 10000;
        transition: right 0.35s ease;
        gap: 4px;
        overflow-y: auto;
        box-shadow: -8px 0 0 #000;
    }

    .cube-links.open {
        right: 0;
    }





    .cube-links a {
        padding: 14px 16px;
        font-size: 1rem;
        font-weight: 700;
        border: 2px solid transparent;
        display: block;
        color: #000;
    }

    .cube-links a:hover {
        background: #f5f5f5;
        border-color: #000;
        opacity: 1;
    }

    /* Dropdown no Mobile */
    .cube-dropdown {
        display: flex;
        flex-direction: column;
    }

    .cube-dropdown > a {
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .cube-dropdown-menu {
        position: static;
        border: none;
        border-left: 3px solid #000;
        margin: 4px 0 4px 12px;
        padding: 0;
        min-width: auto;
        opacity: 0;
        visibility: hidden;
        pointer-events: none;
        transform: translateY(-8px);
        transition: opacity 0.25s ease, transform 0.25s ease;
        background: transparent;
        max-height: 0;
        overflow: hidden;
        padding: 0;
    }

    .cube-dropdown.open .cube-dropdown-menu {
        opacity: 1;
        visibility: visible;
        pointer-events: auto;
        transform: translateY(0);
        max-height: 800px;
        padding: 4px 0;
    }

    .cube-dropdown-menu a {
        padding: 12px 16px;
        font-size: 0.9rem;
        font-weight: 600;
        white-space: normal;
        word-break: break-word;
        color: #333;
    }

    .cube-dropdown-menu a:hover {
        background: #f0f0f0;
    }

    .cube-logo-text {
        font-size: 1.125rem;
    }

    .cube-logo-box {
        width: 42px;
        height: 42px;
        font-size: 1.25rem;
    }
}







/* ============================================
   4. MAIN CONTENT
   ============================================ */
.main-content {
    flex: 1;
}

/* ============================================
   5. HERO SECTION
   ============================================ */
.hero-section {
    padding: 80px 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at 30% 50%, rgba(255,20,147,0.15) 0%, transparent 50%),
                radial-gradient(circle at 70% 50%, rgba(238,114,248,0.15) 0%, transparent 50%);
    animation: heroGlow 8s ease-in-out infinite alternate;
}

@keyframes heroGlow {
    0% { transform: translate(0, 0); }
    100% { transform: translate(-20px, -20px); }
}

.hero-content { position: relative; z-index: 1; }

.hero-content h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-content h1 span {
    color: var(--primary);
}

.hero-content p {
    font-size: 1.2rem;
    max-width: 65ch;
    margin: 0 auto 30px;
}

.hero-search {
    max-width: 500px;
    margin: 0 auto;
    display: flex;
    gap: 10px;
}

.hero-search input {
    flex: 1;
    padding: 15px 20px;
    border: 2px solid rgba(255,255,255,0.1);
    border-radius: var(--radius);
    background: rgba(255,255,255,0.05);
    color: #fff;
    font-size: 1rem;
    
    transition: var(--transition);
}

.hero-search input:focus {
    outline: none;
    border-color: var(--primary);
    background: rgba(255,255,255,0.1);
}

.hero-search input::placeholder { color: var(--gray-500); }

.hero-search button {
    padding: 15px 30px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    
}

.hero-search button:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(255,20,147,0.4);
}

/* Stats Bar */
.stats-bar {
    display: flex;
    justify-content: center;
    gap: 60px;
    margin-top: 50px;
    padding-top: 40px;
}

.stat-item { text-align: center; }

.stat-item .number {
    font-size: 2rem;
    font-weight: 800;
    display: block;
}

.stat-item .label {
    font-size: 0.9rem;
    margin-top: 5px;
}

/* ============================================
   6. SECTION TITLES
   ============================================ */
.section-title {
    text-align: center;
    margin-bottom: 40px;
}

.section-title h2 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.section-title p {
    color: var(--gray-600);
    font-size: 1.05rem;
}

/* ============================================
   7. MODEL CARDS GRID
   ============================================ */
.models-grid {
    display: grid;
    gap: 25px;
    margin-bottom: 40px;
}

/* Grid columns controlado pelo admin */
.models-grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.models-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.models-grid.cols-4 { grid-template-columns: repeat(4, 1fr); }
.models-grid.cols-5 { grid-template-columns: repeat(5, 1fr); }
.models-grid.cols-6 { grid-template-columns: repeat(6, 1fr); }

/* Fallback padrão */
.models-grid:not([class*="cols-"]) {
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

@media (max-width: 992px) {
    .models-grid.cols-4,
    .models-grid.cols-5,
    .models-grid.cols-6 {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (max-width: 768px) {
    .models-grid.cols-2,
    .models-grid.cols-3,
    .models-grid.cols-4,
    .models-grid.cols-5,
    .models-grid.cols-6 {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 480px) {
    .models-grid {
        grid-template-columns: 1fr !important;
    }
}

.model-card {
    background: #fff;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    position: relative;
}

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

.model-card-image {
    position: relative;
    height: 200px;
    background: linear-gradient(135deg, var(--dark-2), var(--dark-3));
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.model-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.model-card-image .placeholder-icon {
    font-size: 4rem;
    color: rgba(255,255,255,0.2);
}

.model-card-image .featured-badge {
    position: absolute;
    top: 10px;
    right: 10px;
    background: linear-gradient(135deg, var(--warning), #e67e22);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    z-index: 5;
}


.model-card-image .download-count {
    position: absolute;
    bottom: 10px;
    right: 10px;
    background: rgba(0,0,0,0.7);
    color: #fff;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    display: flex;
    align-items: center;
    gap: 5px;
}

.model-card-body { padding: 20px; }

.model-card-body h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--dark);
    line-height: 1.3;
}

.model-card-body .category-tag {
    display: inline-block;
    background: rgba(255,20,147,0.1);
    color: var(--primary);
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 10px;
}

.model-card-body p {
    color: var(--gray-600);
    font-size: 0.9rem;
    margin-bottom: 15px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.model-card-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 15px 20px;
    border-top: 1px solid var(--gray-200);
}

.model-card-footer .file-info {
    font-size: 0.8rem;
    color: var(--gray-500);
}

.btn-download {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    
}

.btn-download:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255,20,147,0.4);
}

.btn-download i { font-size: 1rem; }

/* ============================================
   8. BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255,20,147,0.4);
}

.btn-secondary {
    background: var(--gray-200);
    color: var(--gray-700);
}

.btn-secondary:hover { background: var(--gray-300); }

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

.btn-outline:hover {
    background: var(--primary);
    color: #fff;
}

.btn-sm { padding: 8px 16px; font-size: 0.85rem; }
.btn-lg { padding: 16px 32px; font-size: 1.1rem; }

/* ============================================
   9. TESTIMONIALS
   ============================================ */
.testimonials-layout {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 40px;
    align-items: start;
}

@media (max-width: 768px) {
    .testimonials-layout {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .testimonials-layout > div:last-child {
        position: static !important;
    }
}

.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 25px;
}


.testimonial-card {
    background: #fff;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.testimonial-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-lg);
}

.testimonial-card .stars {
    color: var(--warning);
    margin-bottom: 15px;
    font-size: 1.1rem;
}

.testimonial-card .message {
    color: var(--gray-700);
    font-size: 0.95rem;
    line-height: 1.7;
    margin-bottom: 20px;
    max-width: 65ch;
    font-style: italic;
}

.testimonial-card .author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.testimonial-card .author .avatar {
    width: 45px;
    height: 45px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-weight: 700;
    font-size: 1.1rem;
}

.testimonial-card .author .name {
    font-weight: 600;
    color: var(--dark);
}

.testimonial-card .author .date {
    font-size: 0.8rem;
    color: var(--gray-500);
}

/* ============================================
   10. FORMS
   ============================================ */
.form-group { margin-bottom: 20px; }

.form-group label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--gray-700);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--gray-300);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    
    transition: var(--transition);
    background: #fff;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,20,147,0.1);
}

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

select.form-control { cursor: pointer; }

/* ============================================
   11. PAGINATION
   ============================================ */
.pagination {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-top: 40px;
}

.pagination a, .pagination span {
    padding: 10px 16px;
    border-radius: var(--radius-sm);
    font-weight: 500;
    transition: var(--transition);
}

.pagination a {
    background: #fff;
    color: var(--gray-700);
    border: 1px solid var(--gray-300);
}

.pagination a:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.pagination .active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
}

/* ============================================
   12. FOOTER - Modern Style
   ============================================ */
.site-footer {
    background: #000;
    color: rgba(255,255,255,0.7);
    padding: 60px 0 0;
    margin-top: 60px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 40px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.25rem;
    font-weight: 700;
    color: #fff;
    margin-bottom: 15px;
}

.footer-logo i {
    font-size: 1.5rem;
    color: var(--primary);
}

.footer-col p {
    font-size: 0.9rem;
    line-height: 1.7;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.6);
    max-width: 65ch;
}

.footer-social {
    display: flex;
    gap: 8px;
}

.footer-social a {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: rgba(255,255,255,0.08);
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255,255,255,0.6);
    transition: var(--transition);
    font-size: 0.9rem;
}

.footer-social a:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}

.footer-col h4 {
    color: #fff;
    font-size: 0.95rem;
    margin-bottom: 20px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.footer-col ul li { margin-bottom: 10px; }

.footer-col ul li a {
    color: rgba(255,255,255,0.55);
    font-size: 0.875rem;
    transition: var(--transition);
}

.footer-col ul li a:hover {
    color: #fff;
    padding-left: 4px;
}

.contact-info li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255,255,255,0.55);
    font-size: 0.875rem;
}

.contact-info li i {
    color: var(--primary);
    width: 18px;
    font-size: 0.85rem;
}

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
    padding: 20px 0;
    text-align: center;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.4);
}


/* ============================================
   13. AD BANNERS
   ============================================ */
.top-ad-banner, .bottom-ad-banner {
    background: var(--gray-200);
    text-align: center;
    padding: 10px;
    font-size: 0.85rem;
    color: var(--gray-500);
}

.sidebar-ad {
    background: var(--gray-200);
    padding: 20px;
    border-radius: var(--radius);
    text-align: center;
    margin-bottom: 25px;
    min-height: 250px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-500);
}

/* ============================================
   14. ALERTS & MESSAGES
   ============================================ */
.alert {
    padding: 15px 20px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    font-size: 0.9rem;
    display: flex;
    align-items: center;
    gap: 10px;
}

.alert-success {
    background: rgba(255, 20, 147, 0.1);
    color: #FF1493;
    border: 1px solid rgba(255, 20, 147, 0.3);
}

.alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

.alert-warning {
    background: #fff3cd;
    color: #856404;
    border: 1px solid #ffeeba;
}

.alert-info {
    background: #d1ecf1;
    color: #0c5460;
    border: 1px solid #bee5eb;
}

/* ============================================
   15. ABOUT PAGE
   ============================================ */
.about-section {
    max-width: 800px;
    margin: 0 auto;
}

.about-section h1 {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 20px;
}

.about-section .about-content {
    background: #fff;
    padding: 40px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    line-height: 1.8;
}

.about-section .about-content p {
    margin-bottom: 20px;
    color: var(--gray-700);
    max-width: 65ch;
}

/* ============================================
   16. EMPTY STATE
   ============================================ */
.empty-state {
    text-align: center;
    padding: 60px 20px;
}

.empty-state i {
    font-size: 4rem;
    color: var(--gray-400);
    margin-bottom: 20px;
}

.empty-state h3 {
    font-size: 1.5rem;
    color: var(--gray-700);
    margin-bottom: 10px;
}

.empty-state p { color: var(--gray-500); }

/* ============================================
   17. STL 3D VIEWER
   ============================================ */
.stl-viewer-container {
    position: relative;
    width: 100%;
    height: 450px;
    background: #000;
    border-radius: var(--radius);
    overflow: hidden;
    cursor: grab;
}

.stl-viewer-container:active { cursor: grabbing; }

.stl-viewer-container canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

.stl-viewer-container .viewer-controls {
    position: absolute;
    bottom: 15px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    z-index: 10;
}

.stl-viewer-container .viewer-btn {
    background: rgba(255,255,255,0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
    
}

.stl-viewer-container .viewer-btn:hover {
    background: rgba(239,3,108,0.5);
    border-color: var(--secondary);
}


.stl-viewer-container .viewer-btn i { margin-right: 5px; }

/* Loading overlay */
.stl-loader {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(26, 26, 46, 0.9);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: 20;
    gap: 15px;
}

.stl-loader-spinner {
    width: 50px;
    height: 50px;
    border: 3px solid rgba(255,255,255,0.1);
    border-top-color: var(--secondary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}


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

.stl-loader-text {
    color: var(--gray-400);
    font-size: 0.9rem;
    font-weight: 500;
}

.stl-loader-progress {
    width: 200px;
    height: 4px;
    background: rgba(255,255,255,0.1);
    border-radius: 2px;
    overflow: hidden;
}
.stl-loader-bar {
    height: 100%;
    background: linear-gradient(90deg, var(--secondary), var(--accent));
    border-radius: 2px;
    width: 100%;
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.3s ease;
}


.stl-error {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(231, 76, 60, 0.9);
    color: #fff;
    padding: 15px 25px;
    border-radius: 8px;
    font-size: 0.9rem;
    z-index: 20;
    display: none;
    align-items: center;
    gap: 10px;
}

/* Mini viewer for cards */
.stl-card-viewer {
    width: 100%;
    height: 200px;
    background: #000;
    position: relative;
    overflow: hidden;
}

.stl-card-viewer canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
}

/* Dimension display below viewers */
.stl-dimensions {
    display: flex;
    justify-content: center;
    gap: 20px;
    padding: 10px 15px;
    background: rgba(26, 26, 46, 0.95);
    border-radius: 0 0 var(--radius) var(--radius);
    margin-top: 0;
}

.stl-dim-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8rem;
    color: #fff;
}

.stl-dim-label {
    font-weight: 700;
    color: var(--secondary);
    background: rgba(239, 3, 108, 0.2);
    padding: 2px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
}

.stl-dim-value {
    color: rgba(255,255,255,0.8);
    font-weight: 500;
}

/* ============================================
   18. MODEL DETAIL PAGE
   ============================================ */
.model-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
    margin-bottom: 40px;
}

.model-detail-info {
    background: #fff;
    border-radius: var(--radius);
    padding: 30px;
    box-shadow: var(--shadow);
}

.model-detail-info h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 10px;
}

.model-detail-info .meta {
    display: flex;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.model-detail-info .meta span {
    font-size: 0.85rem;
    color: var(--gray-500);
    display: flex;
    align-items: center;
    gap: 5px;
}

.model-detail-info .meta span i { color: var(--primary); }

.model-detail-info .description {
    color: var(--gray-700);
    line-height: 1.7;
    margin-bottom: 25px;
    max-width: 65ch;
}

.model-detail-info .actions {
    display: flex;
    gap: 15px;
    flex-wrap: wrap;
}

.btn-download-lg {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 36px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: var(--radius);
    font-size: 1.1rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
    
    text-decoration: none;
}

.btn-download-lg:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255,20,147,0.4);
}

.btn-download-lg i { font-size: 1.3rem; }

/* ============================================
   19. ADMIN LAYOUT
   ============================================ */
.admin-layout {
    display: flex;
    min-height: 100vh;
}

/* Admin Sidebar */
.admin-sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    color: #fff;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 1000;
    transition: all 0.3s ease;
    overflow-y: auto;
}

.admin-sidebar.collapsed { width: 60px; }

.admin-sidebar.collapsed .sidebar-logo span,
.admin-sidebar.collapsed .sidebar-nav a span { display: none; }

.admin-sidebar.collapsed .sidebar-nav a i {
    margin-right: 0;
    font-size: 1.2rem;
}

.sidebar-header {
    padding: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
}

.sidebar-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    text-decoration: none;
    font-size: 1.3rem;
    font-weight: 700;
}

.sidebar-logo i {
    font-size: 1.8rem;
    color: #fff;
}

.sidebar-nav { padding: 15px 10px; }

.sidebar-nav ul li { margin-bottom: 3px; }

.sidebar-nav ul li a {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 15px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all 0.3s ease;
}

.sidebar-nav ul li a:hover {
    background: rgba(255,20,147,0.15);
    color: #fff;
}

.sidebar-nav ul li a.active {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    box-shadow: 0 4px 15px rgba(255,20,147,0.3);
}

.sidebar-nav ul li a i {
    width: 20px;
    text-align: center;
    font-size: 1rem;
}

.sidebar-divider {
    height: 1px;
    background: rgba(255,255,255,0.1);
    margin: 15px 0;
}

.text-danger { color: var(--danger) !important; }

/* Admin Content Area */
.admin-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    transition: all 0.3s ease;
    min-height: 100vh;
}

.admin-content.expanded { margin-left: 60px; }

.admin-topbar {
    height: var(--topbar-height);
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 25px;
    box-shadow: 0 1px 3px rgba(0,0,0,0.08);
    position: sticky;
    top: 0;
    z-index: 100;
}

.sidebar-toggle {
    background: none;
    border: none;
    font-size: 1.3rem;
    color: #666;
    cursor: pointer;
    padding: 5px;
}

.sidebar-toggle:hover { color: var(--primary); }

.topbar-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.topbar-user {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    color: #666;
    font-weight: 500;
}

.topbar-user i { font-size: 1.5rem; color: var(--primary); }

.admin-main { padding: 25px; }

/* ============================================
   20. ADMIN DASHBOARD
   ============================================ */
.dashboard-header { margin-bottom: 25px; }

.dashboard-header h1 {
    font-size: 1.8rem;
    font-weight: 700;
    color: #1a1a2e;
}

.dashboard-header h1 i { color: var(--primary); margin-right: 10px; }

.dashboard-header p {
    color: #888;
    margin-top: 5px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
    margin-bottom: 25px;
}

.stat-card {
    background: #fff;
    border-radius: 12px;
    padding: 25px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    transition: all 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 20px rgba(0,0,0,0.1);
}

.stat-card .stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.stat-primary .stat-icon { background: rgba(255,20,147,0.1); color: var(--primary); }
.stat-success .stat-icon { background: rgba(255,20,147,0.1); color: var(--success); }
.stat-warning .stat-icon { background: rgba(243,156,18,0.1); color: var(--warning); }
.stat-danger .stat-icon { background: rgba(231,76,60,0.1); color: var(--danger); }

.stat-info .stat-number {
    font-size: 1.8rem;
    font-weight: 800;
    color: #1a1a2e;
    display: block;
}

.stat-info .stat-label {
    font-size: 0.85rem;
    color: #888;
    margin-top: 3px;
}

.stat-footer {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid #f0f0f0;
}

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success { background: rgba(255,20,147,0.1); color: #FF1493; }
.badge-info { background: rgba(52,152,219,0.1); color: #2980b9; }
.badge-warning { background: rgba(243,156,18,0.1); color: #d68910; }
.badge-danger { background: rgba(231,76,60,0.1); color: #c0392b; }

.btn-action {
    color: var(--primary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 600;
}

.btn-action:hover { text-decoration: underline; }

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 25px;
    margin-bottom: 25px;
}

.dashboard-card {
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    overflow: hidden;
}

.card-header {
    padding: 20px 25px;
    border-bottom: 1px solid #f0f0f0;
}

.card-header h3 {
    font-size: 1rem;
    font-weight: 600;
    color: #1a1a2e;
}

.card-header h3 i { margin-right: 8px; color: var(--primary); }

.card-body { padding: 20px 25px; }

/* Activity List */
.activity-item {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    padding: 12px 0;
    border-bottom: 1px solid #f5f5f5;
}

.activity-item:last-child { border-bottom: none; }

.activity-icon {
    width: 35px;
    height: 35px;
    border-radius: 50%;
    background: rgba(255,20,147,0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    flex-shrink: 0;
}

.activity-info .activity-title {
    display: block;
    font-weight: 500;
    font-size: 0.9rem;
    color: #333;
}

.activity-info .activity-meta {
    font-size: 0.8rem;
    color: #999;
}

/* Quick Actions */
.quick-actions {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
}

.quick-action-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 20px;
    background: #f8f9fa;
    border-radius: 12px;
    text-decoration: none;
    color: #555;
    transition: all 0.3s ease;
}

.quick-action-btn:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-3px);
}

.quick-action-btn i { font-size: 1.5rem; }
.quick-action-btn span { font-size: 0.85rem; font-weight: 500; }

/* ============================================
   21. ADMIN TABLES
   ============================================ */
.table-container { overflow-x: auto; }

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
}

.data-table th {
    background: #f8f9fa;
    padding: 12px 15px;
    text-align: left;
    font-weight: 600;
    color: #555;
    border-bottom: 2px solid #e9ecef;
    white-space: nowrap;
}

.data-table td {
    padding: 12px 15px;
    border-bottom: 1px solid #f0f0f0;
    color: #555;
}

.data-table tr:hover td { background: #f8f9fa; }

.data-table .actions {
    display: flex;
    gap: 8px;
}

.btn-icon {
    width: 35px;
    height: 35px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    text-decoration: none;
    font-size: 0.9rem;
}

.btn-icon-edit { background: rgba(52,152,219,0.1); color: #2980b9; }
.btn-icon-edit:hover { background: #2980b9; color: #fff; }
.btn-icon-delete { background: rgba(231,76,60,0.1); color: #c0392b; }
.btn-icon-delete:hover { background: #c0392b; color: #fff; }
.btn-icon-view { background: rgba(255,20,147,0.1); color: var(--primary); }
.btn-icon-view:hover { background: var(--primary); color: #fff; }

/* ============================================
   22. ADMIN FORMS
   ============================================ */
.form-card {
    background: #fff;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    max-width: 800px;
}

.form-card .form-group { margin-bottom: 20px; }

.form-card label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #444;
    font-size: 0.9rem;
}

.form-card .form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 0.95rem;
    
    transition: all 0.3s ease;
}

.form-card .form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,20,147,0.1);
}

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

.form-card select.form-control { cursor: pointer; }

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ============================================
   23. ADMIN LOGIN
   ============================================ */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #1a1a2e, #16213e);
}

.login-box {
    background: #fff;
    border-radius: 16px;
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.3);
}

.login-box .login-logo {
    text-align: center;
    margin-bottom: 30px;
}

.login-box .login-logo i {
    font-size: 3rem;
    color: var(--primary);
}

.login-box .login-logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #1a1a2e;
    margin-top: 10px;
}

.login-box .login-logo p {
    color: #888;
    font-size: 0.9rem;
}

.login-box .form-group { margin-bottom: 20px; }

.login-box label {
    display: block;
    font-weight: 600;
    margin-bottom: 8px;
    color: #444;
    font-size: 0.9rem;
}

.login-box .form-control {
    width: 100%;
    padding: 14px 16px;
    border: 2px solid #e0e0e0;
    border-radius: 10px;
    font-size: 1rem;
    
    transition: all 0.3s ease;
}

.login-box .form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255,20,147,0.1);
}

.login-box .btn-login {
    width: 100%;
    padding: 14px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    
}

.login-box .btn-login:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(255,20,147,0.4);
}

.login-box .alert {
    padding: 12px 16px;
    border-radius: 8px;
    margin-bottom: 20px;
    font-size: 0.9rem;
}

.login-box .alert-danger {
    background: #f8d7da;
    color: #721c24;
    border: 1px solid #f5c6cb;
}

/* ============================================
   24. TOAST NOTIFICATIONS
   ============================================ */
.toast-container {
    position: fixed;
    top: 80px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    padding: 15px 20px;
    border-radius: var(--radius-sm);
    color: #fff;
    font-weight: 500;
    font-size: 0.9rem;
    box-shadow: var(--shadow-lg);
    animation: slideIn 0.3s ease;
    display: flex;
    align-items: center;
    gap: 10px;
}

.toast-success { background: var(--success); }
.toast-error { background: var(--danger); }
.toast-info { background: var(--info); }

@keyframes slideIn {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}

/* ============================================
   25. ANIMATIONS
   ============================================ */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.model-card, .testimonial-card {
    animation: fadeInUp 0.5s ease forwards;
}

.model-card:nth-child(2) { animation-delay: 0.1s; }
.model-card:nth-child(3) { animation-delay: 0.2s; }
.model-card:nth-child(4) { animation-delay: 0.3s; }
.model-card:nth-child(5) { animation-delay: 0.4s; }
.model-card:nth-child(6) { animation-delay: 0.5s; }

/* Loading Spinner */
.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-300);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin: 40px auto;
}

/* ============================================
   26. RESPONSIVE
   ============================================ */
@media (max-width: 992px) {
    .model-detail {
        grid-template-columns: 1fr;
    }
    
    .stl-viewer-container {
        height: 350px;
    }
    
    .hero-content h1 {
        font-size: 2.2rem;
    }
    
    .stats-bar {
        gap: 30px;
    }
    
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
    
    .form-row {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 1.8rem;
    }
    
    .hero-content p {
        font-size: 1rem;
    }
    
    .hero-search {
        flex-direction: column;
    }
    
    .stats-bar {
        flex-direction: column;
        gap: 20px;
    }
    
    .models-grid {
        grid-template-columns: 1fr;
    }
    
    .testimonials-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        gap: 30px;
    }
    
    .section-title h2 {
        font-size: 1.5rem;
    }
    
    /* Admin sidebar mobile - controlled by admin/header.php */
    .admin-sidebar {
        width: 260px !important;
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }
    
    .admin-sidebar.mobile-open {
        transform: translateX(0);
    }
    
    .admin-sidebar .sidebar-logo span,
    .admin-sidebar .sidebar-nav a span {
        display: inline !important;
    }
    
    .admin-sidebar .sidebar-nav a i {
        margin-right: 12px !important;
        font-size: 1rem !important;
    }
    
    .admin-content {
        margin-left: 0 !important;
    }
    
    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 480px) {
    .hero-content h1 {
        font-size: 1.5rem;
    }
    
    .container {
        padding: 0 15px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .admin-main {
        padding: 15px;
    }
}


/* ============================================
   Header Social Icons
   ============================================ */
.header-social {
    display: flex;
    align-items: center;
    gap: 6px;
    margin-left: 15px;
    padding-left: 15px;
    border-left: 1px solid #e5e5e5;
}

.header-social a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    color: #666;
    background: #f0f0f0;
    transition: var(--transition);
    font-size: 0.875rem;
    text-decoration: none;
}

.header-social a:hover {
    color: #fff;
    background: var(--primary);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(255,20,147,0.3);
}

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

/* ============================================
   Anúncios - Isolamento para não quebrar layout
   ============================================ */
.top-ad-banner {
    width: 100%;
    overflow: hidden;
    text-align: center;
    background: transparent;
    line-height: 0;
}
.top-ad-banner > * {
    max-width: 100%;
    display: inline-block;
}
.top-ad-banner img {
    max-width: 100%;
    height: auto;
}
.top-ad-banner iframe {
    max-width: 100%;
    border: none;
}

.bottom-ad-banner {
    width: 100%;
    overflow: hidden;
    text-align: center;
    background: transparent;
    padding: 10px 0;
}
.bottom-ad-banner > * {
    max-width: 100%;
    display: inline-block;
}
.bottom-ad-banner img {
    max-width: 100%;
    height: auto;
}

/* Layout com Sidebar */
.page-with-sidebar {
    display: flex;
    gap: 30px;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.page-content-area {
    flex: 1;
    min-width: 0;
}

.page-sidebar {
    width: 300px;
    flex-shrink: 0;
}

.sidebar-ad-box {
    position: sticky;
    top: 100px;
    width: 100%;
    min-height: 250px;
    background: #f8f9fa;
    border: 2px dashed #dee2e6;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 10px;
}

.sidebar-ad-box > * {
    max-width: 100%;
}

.sidebar-ad-box img {
    max-width: 100%;
    height: auto;
}

.sidebar-ad-box iframe {
    max-width: 100%;
    border: none;
}

@media (max-width: 768px) {
    .page-with-sidebar {
        flex-direction: column;
    }
    .page-sidebar {
        width: 100%;
    }
    .sidebar-ad-box {
        position: static;
        min-height: 100px;
    }
}