:root {
    /* Colors */
    --primary-color: #00A6FB;
    --secondary-color: #00F5D4;
    --background-color: #E0FFFF;
    --footer-bg-color: #0F2027;
    --button-color: #00A6FB;

    --section-bg-1: #F8F8FF;
    --section-bg-2: #F0F8FF;
    --section-bg-3: #E6F7FF;
    --section-bg-4: #D9F2FF;
    --section-bg-5: #CCEEFF;

    --text-color-dark: #1a202c;
    --text-color-light: #f8f8f8;
    --link-color: var(--primary-color);
    --link-hover-color: var(--secondary-color);

    /* Typography */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Open Sans', sans-serif;
    --font-size-base: 1.125rem; /* ~18px */
    --line-height-base: 1.8;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;

    /* Border Radius */
    --border-radius-sm: 0.5rem;
    --border-radius-md: 0.75rem;
    --border-radius-lg: 1rem;

    /* Shadows */
    --shadow-subtle: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.37);
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    line-height: var(--line-height-base);
    color: var(--text-color-dark);
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-color-dark);
    line-height: 1.2;
    margin-top: var(--spacing-xl);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
}

h3 {
    font-size: 2rem;
    font-weight: 600;
}

h4 {
    font-size: 1.5rem;
    font-weight: 600;
}

p {
    margin-bottom: var(--spacing-md);
}

a {
    color: var(--link-color);
    text-decoration: none;
    transition: color 0.3s ease, transform 0.3s ease;
}

a:hover {
    color: var(--link-hover-color);
    transform: translateY(-2px);
}

/* Glassmorphism Effect */
.glassmorphism {
    background: rgba(255, 255, 255, 0.2);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.3);
    box-shadow: var(--shadow-glass);
}

/* Header */
.header-glass {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-sm) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.05);
    transition: background 0.3s ease, padding 0.3s ease;
}

.header-glass:hover {
    background: rgba(255, 255, 255, 0.3);
    padding-top: var(--spacing-md);
    padding-bottom: var(--spacing-md);
}

.header-glass .logo {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 1.8rem;
    color: var(--text-color-dark);
    display: flex;
    align-items: center;
}

.header-glass .logo svg {
    width: 30px;
    height: 30px;
    margin-right: 8px;
    fill: var(--primary-color);
}

.header-glass nav a {
    margin-left: var(--spacing-lg);
    font-weight: 500;
    color: var(--text-color-dark);
    position: relative;
}

.header-glass nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background-color: var(--secondary-color);
    bottom: -5px;
    left: 0;
    transition: width 0.3s ease;
}

.header-glass nav a:hover::after {
    width: 100%;
}

.search-bar input {
    background: rgba(255, 255, 255, 0.3);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--border-radius-sm);
    padding: var(--spacing-xs) var(--spacing-sm);
    color: var(--text-color-dark);
    transition: border-color 0.3s ease, background 0.3s ease;
}

.search-bar input::placeholder {
    color: rgba(45, 55, 72, 0.7);
}

.search-bar input:focus {
    outline: none;
    border-color: var(--primary-color);
    background: rgba(255, 255, 255, 0.5);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1rem;
    cursor: pointer;
    border: none;
    outline: none;
    background-color: var(--button-color);
    color: var(--text-color-light);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
}

.btn:hover {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    box-shadow: 0 6px 20px rgba(0, 0, 0, 0.3);
    transform: translateY(-2px);
    color: var(--text-color-light); /* Ensure text remains visible on gradient */
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.15);
}

/* Section Backgrounds */
.section-bg-1 {
    background-color: var(--section-bg-1);
}

.section-bg-2 {
    background-color: var(--section-bg-2);
}

.section-bg-3 {
    background-color: var(--section-bg-3);
}

.section-bg-4 {
    background-color: var(--section-bg-4);
}

.section-bg-5 {
    background-color: var(--section-bg-5);
}

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
    border-radius: var(--border-radius-md);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: var(--shadow-subtle);
    padding: var(--spacing-lg);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

/* Footer */
.footer {
    background: var(--footer-bg-color);
    color: rgba(255, 255, 255, 0.7);
    padding: var(--spacing-xl) var(--spacing-lg);
    font-size: 0.9rem;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(45deg, rgba(15, 32, 39, 0.9), rgba(32, 58, 67, 0.9), rgba(44, 83, 100, 0.9));
    opacity: 0.8;
    z-index: 0;
}

.footer > * {
    position: relative;
    z-index: 1;
}

.footer h3 {
    color: var(--text-color-light);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.footer a {
    color: rgba(255, 255, 255, 0.6);
    display: block;
    margin-bottom: var(--spacing-xs);
    transition: color 0.3s ease;
}

.footer a:hover {
    color: var(--primary-color);
    transform: translateX(5px);
}

.footer .social-icons a {
    display: inline-block;
    margin-right: var(--spacing-sm);
    font-size: 1.5rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer .social-icons a:hover {
    color: var(--secondary-color);
    transform: scale(1.1);
}

.footer .copyright {
    margin-top: var(--spacing-lg);
    text-align: center;
    color: rgba(255, 255, 255, 0.5);
}

/* Utility classes for Tailwind complement */
.container {
    max-width: 1200px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

.flex-center {
    display: flex;
    align-items: center;
    justify-content: center;
}

.grid-cols-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-lg);
}

.grid-cols-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-lg);
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.animate-fade-in {
    animation: fadeIn 0.8s ease-out forwards;
}

.animate-slide-in-up {
    animation: slideInUp 0.8s ease-out forwards;
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
    h1 {
        font-size: 2.8rem;
    }
    h2 {
        font-size: 2rem;
    }
    h3 {
        font-size: 1.75rem;
    }
    .header-glass {
        padding: var(--spacing-sm) var(--spacing-md);
    }
    .header-glass nav a {
        margin-left: var(--spacing-md);
    }
}

@media (max-width: 768px) {
    :root {
        --font-size-base: 1rem;
    }
    h1 {
        font-size: 2.2rem;
    }
    h2 {
        font-size: 1.8rem;
    }
    h3 {
        font-size: 1.5rem;
    }
    .header-glass {
        flex-direction: column;
        align-items: flex-start;
        padding: var(--spacing-sm);
    }
    .header-glass nav {
        margin-top: var(--spacing-sm);
        display: flex;
        flex-wrap: wrap;
    }
    .header-glass nav a {
        margin: 0 var(--spacing-xs) var(--spacing-xs) 0;
    }
    .search-bar {
        width: 100%;
        margin-top: var(--spacing-sm);
    }
    .search-bar input {
        width: calc(100% - var(--spacing-sm));
    }
    .grid-cols-2, .grid-cols-3 {
        grid-template-columns: 1fr;
    }
    .footer {
        padding: var(--spacing-lg) var(--spacing-md);
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 1.8rem;
    }
    h2 {
        font-size: 1.5rem;
    }
    .header-glass .logo {
        font-size: 1.5rem;
    }
    .header-glass nav a {
        font-size: 0.9rem;
    }
    .btn {
        padding: 0.75rem 1rem;
        font-size: 0.9rem;
    }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}