:root {
    --primary-color: #34495e;     
    --secondary-color: #3498db;     
    --accent-color: #e74c3c;        
    --light-accent: #1abc9c;       
    
    --light-gray: #ecf0f1;         
    --medium-gray: #bdc3c7;         
    --dark-gray: #7f8c8d;           
    
    --white: #fff;
    --black: #2c3e50;              
    
    --section-spacing: 2rem;
    --content-padding: 1.8rem;
    --nav-spacing: 1.5rem;          
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--primary-color);
    background: linear-gradient(135deg, #e8e8e8 0%, #f8f8f8 100%);
    min-height: 100vh;
    padding: var(--section-spacing);
}

.container {
    display: grid;
    grid-template-areas:
        "header"
        "nav"
        "main"
        "footer";
    gap: var(--section-spacing);
    max-width: 1200px;
    margin: 0 auto;
}

header {
    grid-area: header;
    background: linear-gradient(to bottom, #34495e 0%, #2c3e50 100%);
    color: var(--white);
    padding: var(--content-padding);
    text-align: center;
    border-radius: 8px;
    box-shadow: 
        inset 0 2px 4px rgba(255,255,255,0.1),
        inset 0 -2px 4px rgba(0,0,0,0.3),
        0 4px 8px rgba(0,0,0,0.1);
    margin-bottom: 8px;
}
nav {
    grid-area: nav;
    border-radius: 8px;
    width: 100%;
    margin-bottom: 1.5rem;
    padding: var(--nav-spacing) 0;  
}
main {
    grid-area: main;
    display: grid;
    gap: var(--section-spacing);
    grid-template-columns: 1fr;
}
footer {
    grid-area: footer;
    background: linear-gradient(to bottom, #34495e 0%, #2c3e50 100%);
    color: var(--white);
    padding: var(--content-padding);
    text-align: center;
    border-radius: 8px;
    box-shadow: 
        inset 0 2px 4px rgba(255,255,255,0.1),
        inset 0 -2px 4px rgba(0,0,0,0.3);
    margin-top: 1rem;
}

.nav-links {
    display: flex;
    list-style: none;
    justify-content: space-around;
    padding: 0;
    flex-wrap: wrap;
    gap: 1.2rem; 
}

.nav-links li {
    flex: 1;
    text-align: center;
    min-width: 120px;
    margin: 0;
}

.nav-links a {
    color: var(--black);
    text-decoration: none;
    padding: 8px 12px; 
    border-radius: 6px;
    transition: all 0.3s;
    display: block;
    font-weight: bold;
    letter-spacing: 0.5px;  
    text-shadow: 0 1px 1px rgba(255,255,255,0.5);
    background: linear-gradient(to bottom, #ecf0f1 0%, #bdc3c7 100%);
    box-shadow: 
        inset 0 1px 2px rgba(255,255,255,0.8),
        inset 0 -1px 2px rgba(0,0,0,0.1),
        0 2px 3px rgba(0,0,0,0.1);
}

.nav-links a:hover {
    background: linear-gradient(to bottom, #3498db 0%, #2980b9 100%);
    color: var(--white);
    text-shadow: 0 1px 1px rgba(0,0,0,0.3);
    box-shadow: 
        inset 0 1px 3px rgba(255,255,255,0.3),
        inset 0 -1px 3px rgba(0,0,0,0.2),
        0 3px 4px rgba(0,0,0,0.15);
    transform: translateY(-2px);
}
.content-block {
    background: var(--white);
    border-radius: 10px;
    padding: var(--content-padding);
    box-shadow: 
        inset 0 2px 4px rgba(255,255,255,0.8),
        inset 0 -2px 4px rgba(0,0,0,0.1),
        0 2px 4px rgba(0,0,0,0.1);
    transition: all 0.3s;
    margin-bottom: 1rem;
}

.content-block:hover {
    box-shadow: 
        inset 0 2px 6px rgba(255,255,255,0.8),
        inset 0 -2px 6px rgba(0,0,0,0.1),
        0 4px 8px rgba(0,0,0,0.15);
}
.quote {
    background: linear-gradient(135deg, #f9f9f9 0%, #f0f0f0 100%);
    border-left: 5px solid var(--secondary-color); 
    padding: var(--content-padding);
    font-style: italic;
    box-shadow: 
        inset 0 2px 4px rgba(255,255,255,0.8),
        inset 0 -2px 4px rgba(0,0,0,0.1);
    margin: 1.5rem 0;
}
.comment-slider {
    background: linear-gradient(to bottom, #fff 0%, #f9f9f9 100%);  
    border-radius: 10px;
    padding: var(--content-padding);
    box-shadow: 
        inset 0 2px 4px rgba(255,255,255,0.8),
        inset 0 -2px 4px rgba(0,0,0,0.1);
    position: relative;
    height: 100%;
}

.comment-container {
    position: relative;
    min-height: 180px;
    padding: 1rem;
}

.comment-nav {
    display: flex;
    justify-content: space-between;
    margin-top: 0.8rem;
}

.comment-indicators {
	position: absolute;
	bottom: 0rem;
    display: flex;
    justify-content: center;
    gap: 0.8rem;
}

.comment-indicator {
    width: 14px;
    height: 14px;
    background: var(--medium-gray);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 
        inset 0 1px 3px rgba(0,0,0,0.2),
        0 1px 1px rgba(255,255,255,0.8);
}

.comment-indicator.active {
    background: var(--secondary-color);  
    box-shadow: 
        inset 0 1px 3px rgba(0,0,0,0.4),
        0 1px 1px rgba(255,255,255,0.8);
}

.rating-block {
    background: linear-gradient(to bottom, #fff 0%, #f9f9f9 100%); 
    border-radius: 10px;
    padding: var(--content-padding);
    box-shadow: 
        inset 0 2px 4px rgba(255,255,255,0.8),
        inset 0 -2px 4px rgba(0,0,0,0.1);
    height: 100%;
}

select, button {
    width: 100%;
    padding: 0.8rem;
    margin: 1rem 0;
    border: none;
    border-radius: 6px;
    font-family: inherit;
    box-shadow: 
        inset 0 2px 3px rgba(0,0,0,0.1),
        inset 0 -2px 3px rgba(255,255,255,0.8);
    background: var(--light-gray);
}

button {
    background: linear-gradient(to bottom, #3498db, #2980b9); 
    color: var(--white);
    cursor: pointer;
    transition: all 0.3s;
    text-shadow: 0 -1px 0 rgba(0,0,0,0.3);
    box-shadow: 
        inset 0 2px 3px rgba(255,255,255,0.2),
        inset 0 -2px 3px rgba(0,0,0,0.3);
    font-weight: bold;
    padding: 1rem;
    margin: 1.5rem 0 1rem;
    border-radius: 4px; 
}

button:hover {
    background: linear-gradient(to bottom, #2980b9, #2573a7);  
    box-shadow: 
        inset 0 2px 4px rgba(255,255,255,0.2),
        inset 0 -2px 4px rgba(0,0,0,0.4);
}

.rating-options {
    display: flex;
    justify-content: space-between;
    margin: 1.5rem 0;
}

.rating-options label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
}

.side-by-side {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--section-spacing);
}

@media (min-width: 768px) {
    :root {
        --section-spacing: 2rem;
        --content-padding: 1.8rem;
    }
    
    .side-by-side {
        grid-template-columns: 1fr 1fr;
    }
}

@media (min-width: 1024px) {
    :root {
        --section-spacing: 1rem;
        --content-padding: 2rem;
        --nav-spacing: 1rem;
    }
    
    .content-block {
        padding: 2rem;
    }
    
}