@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;600;800&display=swap');

:root {
    --primary-brown: #4a3f35;
    --secondary-brown: #7a6f65;
    --accent-warm: #d4a373;
    
    /* base background */
    --bg-body-start: #fdfbf7;
    --bg-body-end: #efe6d5; 
    
    /* glassmorphism */
    --glass-sidebar: rgba(255, 255, 255, 0.65); 
    --glass-topbar: rgba(74, 63, 53, 0.85); 
    --glass-border: 1px solid rgba(255, 255, 255, 0.4);
    --glass-shadow: 0 8px 32px 0 rgba(74, 63, 53, 0.1);
    
    /* other */
    --bg-card: #ffffff;
    --border-color: #e0dcd0;
    
    --success-bg: #e6f4ea; --success-text: #1e4620;
    --failure-bg: #fce8e6; --failure-text: #c53030;
    --code-bg: #2d2a26; --code-text: #eaccad;
    
    --font-main: 'Segoe UI', Helvetica, Arial, sans-serif;
    --font-mono: 'Consolas', 'Monaco', 'Courier New', monospace;
    
    --topbar-height: 60px; 
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: var(--font-main);
    color: var(--primary-brown);
    
    background: linear-gradient(135deg, var(--bg-body-start) 0%, var(--bg-body-end) 100%);
    background-attachment: fixed;
    
    display: flex;
    height: 100vh;
    overflow: hidden; 
}

h1, h2, h3, h4 { margin-top: 0; font-weight: 600; }
a { text-decoration: none; color: inherit; transition: 0.2s; }
ul { list-style: none; padding: 0; margin: 0; }

.mobile-topbar { display: none; }
.overlay { display: none; }
.desktop-only { display: block; }

.brand-header {
    margin-bottom: 25px;
    padding-bottom: 20px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.logo-text {
    font-family: 'Outfit', sans-serif;
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary-brown);
    letter-spacing: -0.5px;
    text-decoration: none;
    display: flex;
    align-items: center;
    transition: opacity 0.2s;
}

.logo-text:hover { opacity: 0.8; }

.logo-highlight {
    font-weight: 300;
    opacity: 0.7;   
}

.logo-dot {
    color: var(--accent-warm);
    font-size: 2rem;
    line-height: 0;
    margin-left: 2px;
    margin-bottom: 5px; 
}

.context-badges {
    display: flex;
    align-items: center;
    gap: 8px;
}

.product-pill {
    background-color: var(--primary-brown);
    color: #fff;
    font-size: 0.65rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 4px 10px;
    border-radius: 4px;
    box-shadow: 0 2px 5px rgba(74, 63, 53, 0.2);
}

.slash-divider {
    color: var(--border-color);
    font-size: 0.8rem;
    font-weight: 300;
}

.doc-badge {
    color: var(--secondary-brown);
    font-size: 0.7rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: rgba(0,0,0,0.04);
    padding: 4px 8px;
    border-radius: 4px;
}

.mobile-brand {
    display: flex;
    align-items: center;
    font-family: 'Outfit', sans-serif;
    margin-left: 15px;
}

.mobile-logo-text {
    font-weight: 700;
    font-size: 1.2rem;
    color: #fff;
    margin-right: 10px;
}

.mobile-product-badge {
    background: rgba(255,255,255,0.15);
    border: 1px solid rgba(255,255,255,0.2);
    color: #fff;
    font-size: 0.6rem;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.sidebar {
    width: 350px;
    
    background: var(--glass-sidebar);
    backdrop-filter: blur(12px); 
    -webkit-backdrop-filter: blur(12px);
    border-right: var(--glass-border);
    box-shadow: var(--glass-shadow);
    
    padding: 30px 20px;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    flex-shrink: 0;
    transition: transform 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    z-index: 1000;
}

.sidebar h3 {
    color: var(--primary-brown);
    font-size: 1.1rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    border-bottom: 2px solid rgba(212, 163, 115, 0.5);
    padding-bottom: 15px;
    margin-bottom: 25px;
}

.sidebar strong {
    display: block;
    color: var(--secondary-brown);
    font-size: 0.8rem;
    text-transform: uppercase;
    margin: 25px 0 10px 5px;
    letter-spacing: 0.5px;
    opacity: 0.9;
}

.sidebar li a {
    display: block;
    padding: 12px 15px;
    border-radius: 10px;
    color: var(--primary-brown);
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 5px;
}

.sidebar li a:hover {
    background-color: rgba(255, 255, 255, 0.5);
    box-shadow: 0 4px 6px rgba(0,0,0,0.02);
    transform: translateX(3px);
    color: var(--primary-brown);
}

.sidebar li a:hover {
    background-color: rgba(255, 255, 255, 0.5);
    transform: translateX(3px);
}

.sidebar li a.active {
    background-color: var(--primary-brown);
    color: #ffffff;
    font-weight: 600;
    box-shadow: 0 4px 15px rgba(74, 63, 53, 0.25);
    border: 1px solid rgba(255,255,255,0.1);
}

.sidebar li a.active:hover {
    transform: none;
    background-color: var(--primary-brown);
}

.content {
    flex: 1;
    padding: 40px 60px;
    overflow-y: auto;
    max-width: 100%;
}

.overview-container { max-width: 1200px; margin: 0 auto; }
.header-section h1 { font-size: 2.5rem; color: var(--primary-brown); margin-bottom: 25px; text-shadow: 0 2px 4px rgba(0,0,0,0.05); }

.hero-intro { 
    background: rgba(255, 255, 255, 0.8); 
    backdrop-filter: blur(5px);
    padding: 30px; 
    border-left: 6px solid var(--accent-warm); 
    border-radius: 12px; 
    margin: 30px 0; 
    color: var(--secondary-brown); 
    font-size: 1.05rem; 
    line-height: 1.7; 
    box-shadow: 0 4px 20px rgba(74, 63, 53, 0.08); 
}
.hero-intro strong { color: var(--primary-brown); font-weight: 600; }
.divider { border: 0; height: 1px; background: rgba(0,0,0,0.1); margin: 40px 0; }

.cards-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 30px; }

.checker-card { 
    background: #fff; 
    border: 1px solid rgba(0,0,0,0.05); 
    border-radius: 16px; 
    padding: 30px; 
    transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
    display: flex; 
    flex-direction: column; 
    box-shadow: 0 4px 6px rgba(0,0,0,0.02); 
}
.checker-card:hover { 
    transform: translateY(-8px); 
    box-shadow: 0 20px 40px rgba(74, 63, 53, 0.15); 
    border-color: var(--accent-warm); 
}
.card-header { display: flex; justify-content: space-between; margin-bottom: 15px; font-size: 0.9rem; color: var(--secondary-brown); font-weight: 500; }
.version-badge { background-color: #fbeeda; color: #9c6f44; padding: 5px 12px; border-radius: 20px; font-weight: 700; font-size: 0.8rem; }
.checker-card h3 { margin: 0 0 15px 0; font-size: 1.4rem; }
.checker-card h3 a:hover { color: var(--accent-warm); }
.description { color: var(--secondary-brown); font-size: 1rem; line-height: 1.6; flex-grow: 1; margin-bottom: 30px; }
.card-footer { margin-top: auto; }
.btn-details { display: inline-block; text-decoration: none; background-color: var(--primary-brown); color: #ffffff; padding: 12px 24px; border-radius: 8px; font-weight: 600; font-size: 0.95rem; text-align: center; width: 100%; transition: all 0.2s ease;}
.btn-details:hover { background-color: #3a312a; transform: scale(1.02); box-shadow: 0 5px 15px rgba(58, 49, 42, 0.3); }

.doc-header { margin-bottom: 40px; border-bottom: 1px solid rgba(0,0,0,0.1); padding-bottom: 20px; }
.version-card { background: #fff; border: 1px solid rgba(0,0,0,0.05); border-radius: 16px; padding: 30px; margin-bottom: 40px; box-shadow: 0 4px 6px rgba(0,0,0,0.02); }
.version-header { display: flex; justify-content: space-between; margin-bottom: 20px; border-bottom: 1px dashed var(--border-color); padding-bottom: 15px; flex-wrap: wrap; gap: 10px;}
.info-section { margin-bottom: 25px; }
.info-label { font-size: 0.85rem; text-transform: uppercase; color: var(--secondary-brown); font-weight: 700; margin-bottom: 8px; display: block; }
pre { background-color: var(--code-bg); color: var(--code-text); padding: 15px; margin: 0; overflow-x: auto; font-family: var(--font-mono); font-size: 0.9rem; }

.example-block {
    margin-top: 15px;
    border-radius: 8px;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.failure-block {
     margin-top: 25px; 
}

.example-header {
    padding: 10px 15px; 
    font-size: 0.85rem;
    font-weight: 700;
    display: flex;
    align-items: center; 
    gap: 8px; 
}

.status-icon {
    flex-shrink: 0;
}

.example-header.success {
    background-color: var(--success-bg);
    color: var(--success-text);
    border-bottom: 1px solid rgba(30, 70, 32, 0.1);
}

.example-header.failure {
    background-color: var(--failure-bg);
    color: var(--failure-text);
    border-bottom: 1px solid rgba(197, 48, 48, 0.1);
}

/* mobile */

@media (max-width: 900px) {
    
    body {
        flex-direction: column;
        overflow: auto; 
    }

    .mobile-topbar {
        display: flex;
        align-items: center;
        
        background: var(--glass-topbar); 
        backdrop-filter: blur(10px);
        -webkit-backdrop-filter: blur(10px);
        border-bottom: 1px solid rgba(255,255,255,0.1);
        box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
        
        color: #fff;
        height: var(--topbar-height);
        padding: 0 20px;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        z-index: 2000;
    }

    .brand-name {
        font-weight: 600;
        font-size: 1.1rem;
        margin-left: 15px;
        letter-spacing: 0.5px;
    }

    #menu-toggle {
        background: rgba(255, 255, 255, 0.1);
        border: 1px solid rgba(255, 255, 255, 0.2);
        border-radius: 6px;
        color: #fff;
        font-size: 1.3rem;
        cursor: pointer;
        padding: 6px 12px;
        transition: 0.2s;
    }
    
    #menu-toggle:active {
        background: rgba(255, 255, 255, 0.3);
    }

    .sidebar {
        position: fixed;
        top: 0;
        left: 0;
        height: 100vh;
        width: 280px;
        transform: translateX(-105%);
        z-index: 2100;
        border-right: none;
        
        background: rgba(253, 251, 247, 0.95);
        backdrop-filter: blur(15px);
    }

    .sidebar.active {
        transform: translateX(0);
        box-shadow: 5px 0 30px rgba(0,0,0,0.2); 
    }

    .desktop-only { display: none; }

    .overlay {
        display: block;
        position: fixed;
        top: 0; left: 0; width: 100%; height: 100%;
        background: rgba(74, 63, 53, 0.6); 
        backdrop-filter: blur(3px); 
        z-index: 2050;
        opacity: 0;
        visibility: hidden;
        transition: 0.3s ease;
    }

    .overlay.active {
        opacity: 1;
        visibility: visible;
    }

    .content {
        margin-top: var(--topbar-height); 
        padding: 25px 20px;
    }
    
    .header-section h1 { font-size: 1.8rem; }
    .hero-intro { padding: 20px; font-size: 0.95rem; }
    .cards-grid { gap: 20px; }
}


/* version header */

.version-header-modern {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 20px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(0,0,0,0.08); 
    flex-wrap: wrap; 
    gap: 15px;
}

.vh-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.version-pill {
    background-color: #f0ebe1; 
    color: var(--secondary-brown);
    font-family: 'Consolas', monospace; 
    font-size: 0.85rem;
    font-weight: 700;
    padding: 6px 10px;
    border-radius: 8px;
    border: 1px solid rgba(0,0,0,0.05);
    display: flex;
    align-items: center;
    gap: 2px;
}

.v-label {
    opacity: 0.5;
    font-weight: 400;
}

.version-title {
    margin: 0;
    font-family: 'Outfit', sans-serif;
    font-size: 1.4rem;
    font-weight: 600;
    color: var(--primary-brown);
    letter-spacing: -0.5px;
}

.meta-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--secondary-brown);
    opacity: 0.8;
    font-weight: 600;
    letter-spacing: 0.5px;
}

@media (max-width: 600px) {
    .version-header-modern {
        flex-direction: column;
        align-items: flex-start;
        gap: 15px;
    }
}