/* custom properties */
:root {
    /* font sizes */
    --fs-1: 3.2rem;
    --fs-2: 3rem;
    --fs-3: 2.4rem;
    --fs-4: 2rem;
    --fs-5: 1.8rem;
    --fs-6: 1.5rem;
    --fs-7: 1.4rem;
    --fs-8: 1.2rem;

    /* font family */
    --ff-dm-sans: "DM Sans", sans-serif;

    /* colors */
    --primary: hsl(222, 100%, 61%);
    --primary-light: hsl(222, 100%, 70%);
    --primary-dark: hsl(222, 100%, 45%);
    --secondary: hsl(142, 43%, 54%);
    --accent: hsl(41, 95%, 61%);
    --text-primary: hsl(0, 0%, 100%);
    --text-secondary: hsl(227, 13%, 73%);
    --bg-dark: hsl(240, 5%, 8%);
    --bg-darker: hsl(228, 9%, 10%);
    --bg-card: hsl(225, 15%, 16%);
    --success: hsl(142, 43%, 54%);
    --error: hsl(0, 64%, 52%);
    
    /* shadows */
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);

    /* transitions */
    --transition-1: 0.25s ease;
    --transition-2: 0.5s ease;
    --transition-3: 1s ease;
    --cubic-out: cubic-bezier(0.33, 0.85, 0.4, 0.96);
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-dark);
    margin: 0;
    padding: 0;
    color: var(--text-primary);
    font-family: var(--ff-dm-sans);
    font-size: 1.6rem;
}

h2 {
    font-size: var(--fs-2)
}

/* Enhanced Header */
header {
    background: linear-gradient(to right, var(--bg-dark), var(--bg-darker));
    padding: 15px 20px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    color: var(--text-primary);
    font-size: 2.5rem;
    font-weight: 700;
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    margin-right: 30px;
    transition: transform var(--transition-1);
}

.logo:hover {
    transform: scale(1.05);
}

.container {
    display: flex;
    align-items: center;
    padding: 10px 20px 20px 20px;
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    z-index: 1000;
}

.navbar ul {
    display: flex;
    margin: 0;
    padding: 0;
    list-style: none;
}

.navbar-link {
    position: relative;
    padding: 15px 20px;
    display: block;
    text-decoration: none;
    color: var(--text-primary);
    transition: color var(--transition-1);
}

.navbar-link::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary);
    transition: all var(--transition-1);
    transform: translateX(-50%);
}

.navbar-link:hover::after,
.navbar-link.active::after {
    width: 100%;
}

/* Animation styles */
[data-section] {
    opacity: 0;
    transform: translateY(50px);
    transition: var(--transition-3);
}

[data-section].active {
    opacity: 1;
    transform: translateY(0);
}

/* Styling für Provider Cards */
#providersContainer {
    display: grid;
}

.providers-list {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

/* Enhanced Provider Cards */
.provider-card {
    background: linear-gradient(145deg, var(--bg-card), var(--bg-darker));
    padding: 2.5rem;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    position: relative;
    transition: all var(--transition-1);
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 2rem;
}

.provider-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.provider-logo {
    max-width: 120px;
    height: auto;
    margin-bottom: 1.5rem;
    transition: transform var(--transition-1);
}

.provider-card:hover .provider-logo {
    transform: scale(1.05);
}

.provider-name {
    font-size: var(--fs-3);
    color: var(--text-primary);
    margin: 1rem 0;
    background: linear-gradient(to right, var(--text-primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.provider-description {
    font-size: var(--fs-6);
    color: var(--text-secondary);
    margin-bottom: 1rem;
}

/* Enhanced Pros and Cons */
.pros-cons {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 2rem;
    margin-top: 2rem;
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 15px;
}

.pros, .cons {
    flex: 1;
}

.pros-list, .cons-list {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pros-list li, .cons-list li {
    margin-bottom: 0.8rem;
    display: flex;
    align-items: center;
    transition: transform var(--transition-1);
}

.pros-list li:hover, .cons-list li:hover {
    transform: translateX(5px);
}

.pros-list li::before {
    content: '+';
    color: var(--success);
    font-weight: bold;
    margin-right: 0.8rem;
    font-size: var(--fs-5);
}

.cons-list li::before {
    content: '-';
    color: var(--error);
    font-weight: bold;
    margin-right: 0.8rem;
    font-size: var(--fs-5);
}

/* Enhanced Rating */
.rating-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: rgba(255, 255, 255, 0.05);
    padding: 1rem;
    border-radius: 12px;
    margin-top: 1rem;
}

.rating-number {
    font-size: var(--fs-4);
    font-weight: 700;
    color: var(--accent);
    background: linear-gradient(to right, var(--accent), var(--primary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.rating-static .star {
    font-size: 2.4rem;
    color: var(--text-secondary);
    transition: color var(--transition-1);
}

.rating-static .star.filled {
    color: var(--accent);
}

/* Enhanced Buttons */
.btn {
    color: var(--text-primary);
    border-radius: 50px;
    text-decoration: none;
    position: relative;
    background: linear-gradient(to right, var(--primary), var(--primary-light));
    max-width: max-content;
    font-weight: 700;
    padding: 15px 35px;
    overflow: hidden;
    z-index: 1;
    transition: all var(--transition-1);
    border: none;
    cursor: pointer;
    margin-top: 2rem;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

/* Top Providers Section */
.top-providers {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 3rem;
}

.top-providers .provider {
    background: linear-gradient(145deg, var(--bg-card), var(--bg-darker));
    padding: 2.5rem;
    border-radius: 20px;
    text-align: center;
    position: relative;
    transition: all var(--transition-1);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.top-providers .provider:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: var(--primary);
}

.provider-label {
    position: absolute;
    top: 1rem;
    right: 1rem;
    background: linear-gradient(to right, var(--primary), var(--primary-light));
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 50px;
    font-size: var(--fs-8);
    font-weight: 700;
    text-transform: uppercase;
}

/* Mobile Adjustments */
@media (max-width: 768px) {
    .top-providers {
        grid-template-columns: 1fr;
    }

    .pros-cons {
        flex-direction: column;
        gap: 1.5rem;
    }

    .provider-card {
        padding: 1.5rem;
    }

    .rating-container {
        flex-direction: column;
        text-align: center;
    }

    .btn {
        width: 100%;
        text-align: center;
    }
}

/* Footer Styles */
footer {
    padding: 40px 20px;
    color: var(--text-primary);
    font-size: var(--fs-7);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-container {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-section {
    flex: 1;
    min-width: 200px;
}

.footer-title {
    font-size: var(--fs-4);
    margin-bottom: 20px;
    color: var(--text-primary);
}

.footer-contact-list, .footer-links {
    list-style: none;
    padding: 0;
    margin: 0;
}

.footer-contact-list li, .footer-links li {
    margin-bottom: 10px;
}

.footer-contact-link, .footer-link {
    text-decoration: none;
    color: var(--text-secondary);
    transition: color var(--transition-1);
}

.footer-contact-link:hover, .footer-link:hover {
    color: var(--primary);
}

.footer-socials {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 10px;
}

.footer-social-link {
    font-size: var(--fs-7);
    color: var(--text-secondary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: color var(--transition-1);
}

.footer-social-link:hover {
    color: var(--primary);
}

@media (min-width: 769px) {
    .menu-toggle {
        display: none;
        background-color: var(--bg-darker);
    }
}

/* Mobile Styles */
@media (max-width: 768px) {
    header {
        margin-left: 0;
        padding: 10px 20px;
        position: relative;
    }

    .container {
        padding: 0;
        justify-content: space-between;
        width: 100%;
    }

    .menu-toggle {
        display: block;
        background: none;
        border: none;
        font-size: 2.4rem;
        cursor: pointer;
        color: var(--text-primary);
        padding: 5px;
        position: relative;
        z-index: 1002;
    }

    .navbar {
        display: none;
        position: fixed;
        top: 0;
        left: 0;
        width: 100%;
        height: 100vh;
        background-color: var(--bg-darker);
        padding: 80px 20px 20px;
        z-index: 1001;
    }

    .navbar.mobile-open {
        display: block;
    }

    .navbar.hidden {
        display: none;
    }

    .navbar ul {
        flex-direction: column;
        gap: 20px;
    }

    .navbar ul li a {
        text-align: center;
        padding: 15px;
        font-size: var(--fs-5);
        border-radius: 8px;
        transition: all var(--transition-1);
        display: block;
        background: rgba(255, 255, 255, 0.05);
    }

    .navbar ul li a:hover {
        background-color: var(--primary);
        transform: translateX(5px);
    }

    .providers .container {
        padding: 0 20px;
        box-sizing: border-box;
    }

    .providers-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .provider-card {
        margin-bottom: 20px;
        padding: 20px;
        box-sizing: border-box;
    }

    .provider-name {
        font-size: var(--fs-4);
    }

    .provider-description {
        font-size: var(--fs-7);
    }

    .pros-cons {
        flex-direction: column;
        gap: 20px;
        padding: 15px;
    }

    .pros, .cons {
        flex: 1;
        margin: 0;
    }

    .pros-list li, .cons-list li {
        font-size: var(--fs-7);
        padding: 8px 0;
    }

    .btn {
        font-size: var(--fs-7);
        padding: 12px 24px;
        width: 100%;
        text-align: center;
    }

    .top-providers {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .top-providers .provider {
        margin-bottom: 0;
        padding: 20px;
    }

    .footer-container {
        flex-direction: column;
        align-items: center;
        gap: 30px;
        padding: 0 20px;
    }

    .footer-section {
        text-align: center;
        width: 100%;
    }

    .footer-socials {
        align-items: center;
    }
}