/* Theme Variables */
:root {
    /* Default (dark) theme */
    --bg-color: #0A0F1F;
    --text-color: #FFFFFF;
    --accent-color: #FF6B35;
    --card-bg: #1A2238;
    --border-color: #2D3748;
    --icon-color: #FFFFFF;
    --shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --gradient-primary: linear-gradient(135deg, var(--accent-color), #ff9a8b);
    --card-bg-alt: rgba(255, 255, 255, 0.05);
}

[data-theme="light"] {
    --bg-color: #FFFFFF;
    --text-color: #000000;
    --accent-color: #F97316;
    --card-bg: #F3F4F6;
    --border-color: #E5E7EB;
    --icon-color: #000000;
    --card-bg-alt: rgba(0, 0, 0, 0.03);
}

[data-theme="vibrant"] {
    --bg-color: linear-gradient(135deg, #0f0c29, #302b63);
    --text-color: #FFFFFF;
    --accent-color: #ff7e5f;
    --card-bg: rgba(255, 255, 255, 0.1);
    --border-color: rgba(255, 255, 255, 0.2);
    --icon-color: #FFFFFF;
    --card-bg-alt: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', Roboto, system-ui, sans-serif;
    background: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background 0.3s ease;
}

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

/* Header and Navigation */
header {
    padding: 20px 0;
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(10, 15, 31, 0.9);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 24px;
    font-weight: 700;
    text-align: center;
    color: var(--accent-color);
}

/* Footer */
footer {
    padding: 80px 0 40px;
    text-align: center;
    position: relative;
}

.footer-contact {
    margin-bottom: 30px;
}

.contact-link {
    color: var(--accent-color);
    text-decoration: none;
    font-weight: 500;
    font-size: 1.1rem;
    position: relative;
}

.contact-link::after {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent-color);
    transition: width 0.3s ease;
}

.contact-link:hover::after {
    width: 100%;
}

.footer-text {
    opacity: 0.7;
    font-size: 1rem;
}

/* Decorative Elements */
.decoration {
    position: absolute;
    pointer-events: none;
    z-index: 0;
}

.decoration.circle {
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 107, 53, 0.1), transparent 70%);
}

.decoration.triangle {
    width: 0;
    height: 0;
    border-left: 50px solid transparent;
    border-right: 50px solid transparent;
    border-bottom: 100px solid rgba(255, 107, 53, 0.05);
}

/* Parallax effect */
.parallax-element {
    transition: transform 0.1s ease-out;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
    * {
        transition: none !important;
        animation: none !important;
    }
}

/* Hidden SVG sprite */
.svg-sprite {
    display: none;
}

/* Benefits List */
.benefits-list {
    margin: 30px 0 30px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.benefit-item {
    background: var(--card-bg);
    padding: 25px;
    border-radius: 15px;
    border: 1px solid var(--border-color);
}

.benefit-item h4 {
    font-size: 1.3rem;
    margin-bottom: 12px;
    color: var(--accent-color);
}

.benefit-item p {
    font-size: 1rem;
    opacity: 0.9;
    margin: 0;
}