:root {
    --primary-color: #4a6fa5;
    --secondary-color: #166088;
    --accent-color: #4fc3f7;
    --text-color: #333;
    --bg-color: #f9f9f9;
    --card-bg: #fff;
    --header-bg: rgba(255, 255, 255, 0.95);
    --footer-bg: #f1f1f1;
    --input-bg: #fff;
    --input-border: #ddd;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --primary-color: #4fc3f7;
    --secondary-color: #166088;
    --accent-color: #4a6fa5;
    --text-color: #f0f0f0;
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --header-bg: rgba(30, 30, 30, 0.95);
    --footer-bg: #1a1a1a;
    --input-bg: #2d2d2d;
    --input-border: #444;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--bg-color);
    transition: var(--transition);
    padding-top: 80px;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header Styles */
.fixed-header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: var(--header-bg);
    box-shadow: var(--shadow);
    z-index: 1000;
    backdrop-filter: blur(10px);
    transition: var(--transition);
}

.fixed-header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
}

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

nav ul {
    display: flex;
    list-style: none;
}

nav ul li {
    margin-left: 20px;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: var(--transition);
}

nav ul li a:hover {
    color: var(--primary-color);
}

#themeToggle {
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1.2rem;
    color: var(--text-color);
    transition: var(--transition);
}

#themeToggle:hover {
    transform: scale(1.1);
}

/* Hero Banner */
.hero-banner {
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    padding: 100px 0;
    text-align: center;
    margin-bottom: 40px;
    animation: fadeIn 1s ease-out;
}

.hero-banner h1 {
    font-size: 2.5rem;
    margin-bottom: 20px;
    animation: slideUp 0.8s ease-out;
}

.hero-banner p {
    font-size: 1.2rem;
    max-width: 700px;
    margin: 0 auto 30px;
    animation: slideUp 1s ease-out;
}

.scroll-indicator {
    font-size: 2rem;
    animation: bounce 2s infinite;
    cursor: pointer;
}

/* Calculator Sections */
.calculator-section {
    margin-bottom: 50px;
    animation: fadeIn 0.5s ease-out;
}

.calculator-section h2 {
    margin-bottom: 20px;
    color: var(--primary-color);
    position: relative;
    padding-bottom: 10px;
}

.calculator-section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
}

.calculator-card {
    background-color: var(--card-bg);
    border-radius: 10px;
    padding: 25px;
    box-shadow: var(--shadow);
    transition: var(--transition);
}

.calculator-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.1);
}

.input-group {
    margin-bottom: 20px;
}

.input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
}

.input-group input,
.input-group select {
    width: 100%;
    padding: 12px 15px;
    border: 1px solid var(--input-border);
    border-radius: 5px;
    background-color: var(--input-bg);
    color: var(--text-color);
    font-size: 1rem;
    transition: var(--transition);
}

.input-group input:focus,
.input-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(74, 111, 165, 0.2);
}

.calculate-btn {
    background-color: var(--primary-color);
    color: white;
    border: none;
    padding: 12px 25px;
    border-radius: 5px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: var(--transition);
    width: 100%;
}

.calculate-btn:hover {
    background-color: var(--secondary-color);
    transform: translateY(-2px);
}

.results {
    margin-top: 25px;
    padding: 20px;
    background-color: rgba(74, 111, 165, 0.1);
    border-radius: 5px;
    border-left: 4px solid var(--primary-color);
    animation: fadeIn 0.5s ease-out;
}

.results h3 {
    margin-bottom: 10px;
    color: var(--primary-color);
}

.results p {
    margin-bottom: 8px;
}

.hidden {
    display: none;
}

/* Footer */
footer {
    background-color: var(--footer-bg);
    padding: 30px 0;
    margin-top: 50px;
    text-align: center;
}

footer p {
    margin-bottom: 10px;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.footer-links a {
    color: var(--text-color);
    text-decoration: none;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-color);
}

/* Consent Banner */
.consent-banner {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background-color: var(--card-bg);
    padding: 15px 20px;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
    z-index: 1000;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    transition: var(--transition);
}

.consent-banner p {
    margin-right: 20px;
    flex: 1;
    min-width: 200px;
}

.consent-banner button {
    padding: 8px 15px;
    margin-left: 10px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    transition: var(--transition);
}

#acceptCookies {
    background-color: var(--primary-color);
    color: white;
}

#declineCookies {
    background-color: transparent;
    border: 1px solid var(--input-border);
    color: var(--text-color);
}

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

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-20px); }
    60% { transform: translateY(-10px); }
}

/* Responsive Design */
@media (max-width: 768px) {
    body {
        padding-top: 70px;
    }
    
    .fixed-header .container {
        flex-direction: column;
        padding: 10px;
    }
    
    .logo {
        margin-bottom: 10px;
    }
    
    nav ul {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    nav ul li {
        margin: 0 10px 5px;
    }
    
    .hero-banner {
        padding: 80px 0;
    }
    
    .hero-banner h1 {
        font-size: 2rem;
    }
    
    .hero-banner p {
        font-size: 1rem;
    }
    
    .calculator-card {
        padding: 20px;
    }
    
    .footer-links {
        flex-direction: column;
        gap: 10px;
    }
}

@media (max-width: 480px) {
    .input-group input,
    .input-group select {
        padding: 10px 12px;
    }
    
    .calculate-btn {
        padding: 10px 20px;
    }
    
    .consent-banner {
        flex-direction: column;
        text-align: center;
    }
    
    .consent-banner button {
        margin: 5px 0;
        width: 100%;
    }
}
.blog-section {
  margin: 40px auto;
  padding: 20px;
  background: #1c1c1c;
  border-radius: 10px;
  max-width: 800px;
  color: #fff;
}

.blog-section h2 {
  font-size: 1.5rem;
  margin-bottom: 15px;
  color: #00ffc8;
}

.blog-section ul {
  list-style: square;
  padding-left: 20px;
}

.blog-section li {
  margin-bottom: 10px;
}

.blog-section a {
  color: #ffa500;
  text-decoration: none;
}

.blog-section a:hover {
  text-decoration: underline;
}