* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

:root {
    --primary-color: #ff6b6b;
    --secondary-color: #4ecdc4;
    --dark-color: #292f36;
    --light-color: #f7fff7;
    --accent-color: #ffe66d;
}

body {
    background-color: #f9f9f9;
    color: var(--dark-color);
    line-height: 1.6;
    overflow-x: hidden;
}

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

/* Header Styles */
header {
    background-color: white;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 0;
}

.logo {
    display: flex;
    align-items: center;
    font-size: 24px;
    font-weight: 700;
    color: var(--primary-color);
    text-decoration: none;
}

.logo i {
    margin-right: 10px;
    font-size: 28px;
}

.nav-links {
    display: flex;
    list-style: none;
}

.nav-links li {
    margin-left: 30px;
}

.nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-weight: 500;
    transition: color 0.3s;
}

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

.nav-buttons {
    display: flex;
    align-items: center;
}

.btn {
    padding: 10px 20px;
    border-radius: 30px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
    font-size: 16px;
}

.btn-primary {
    background-color: var(--primary-color);
    color: white;
}

.btn-primary:hover {
    background-color: #ff5252;
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--dark-color);
    border: 2px solid var(--dark-color);
    margin-right: 15px;
}

.btn-secondary:hover {
    background-color: var(--dark-color);
    color: white;
}

.mobile-menu {
    display: none;
    font-size: 24px;
    cursor: pointer;
    background: none;
    border: none;
    color: var(--dark-color);
}

/* Mobile Navigation */
.mobile-nav {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background: white;
    z-index: 999;
    transition: left 0.3s ease;
    padding: 80px 20px 20px;
    overflow-y: auto;
}

.mobile-nav.active {
    left: 0;
}

.mobile-nav-links {
    list-style: none;
    margin-bottom: 30px;
}

.mobile-nav-links li {
    margin-bottom: 15px;
}

.mobile-nav-links a {
    text-decoration: none;
    color: var(--dark-color);
    font-size: 18px;
    font-weight: 500;
    display: block;
    padding: 12px 0;
    border-bottom: 1px solid #eee;
    transition: color 0.3s;
}

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

.mobile-nav-buttons {
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.close-menu {
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 24px;
    color: var(--dark-color);
    cursor: pointer;
    z-index: 1001;
}

/* Footer */
footer {
    background-color: var(--dark-color);
    color: white;
    padding: 60px 0 20px;
}

.footer-content {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 40px;
    margin-bottom: 40px;
}

.footer-column h3 {
    font-size: 20px;
    margin-bottom: 20px;
    position: relative;
    padding-bottom: 10px;
}

.footer-column h3::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 40px;
    height: 3px;
    background-color: var(--primary-color);
}

.footer-links {
    list-style: none;
}

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

.footer-links a {
    color: #bbb;
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: white;
}

.social-links {
    display: flex;
    gap: 15px;
    margin-top: 20px;
}

.social-links a {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background-color: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: background-color 0.3s;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: #bbb;
    font-size: 14px;
}

/* ==================== RESPONSIVE STYLES ==================== */

/* Tablet Devices (768px and below) */
@media (max-width: 768px) {
    .container {
        padding: 0 15px;
    }

    /* Navigation */
    .nav-links, 
    .nav-buttons {
        display: none;
    }
    
    .mobile-menu {
        display: block;
    }
    
    .navbar {
        padding: 15px 0;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: repeat(2, 1fr);
        gap: 30px;
    }

    .footer-column h3::after {
        left: 0;
        transform: none;
    }
}

/* Mobile Devices (576px and below) */
@media (max-width: 576px) {
    .container {
        padding: 0 15px;
    }

    /* Header */
    .logo {
        font-size: 20px;
    }

    .logo i {
        font-size: 24px;
    }

    .navbar {
        padding: 12px 0;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 30px;
    }

    .footer-column h3::after {
        left: 50%;
        transform: translateX(-50%);
    }

    .social-links {
        justify-content: center;
    }

    footer {
        padding: 40px 0 20px;
    }

    /* Buttons */
    .btn {
        padding: 8px 16px;
        font-size: 14px;
    }

    .mobile-nav-buttons .btn {
        width: 100%;
        text-align: center;
        justify-content: center;
    }
}

/* Small Mobile Devices (400px and below) */
@media (max-width: 400px) {
    .container {
        padding: 0 10px;
    }

    .logo {
        font-size: 18px;
    }

    .navbar {
        padding: 10px 0;
    }

    .footer-content {
        gap: 25px;
    }

    .mobile-nav {
        padding: 70px 15px 15px;
    }
}

/* Landscape Mobile Optimization */
@media (max-height: 500px) and (orientation: landscape) {
    .mobile-nav {
        padding: 60px 20px 20px;
    }

    .mobile-nav-links li {
        margin-bottom: 8px;
    }

    .mobile-nav-links a {
        padding: 8px 0;
    }
}

/* Touch Device Improvements */
@media (hover: none) {
    .btn-primary:hover,
    .btn-secondary:hover,
    .social-links a:hover,
    .nav-links a:hover {
        transform: none;
    }
    
    .btn-primary:active,
    .btn-secondary:active {
        transform: scale(0.98);
    }
}

/* High-resolution displays */
@media (-webkit-min-device-pixel-ratio: 2), (min-resolution: 192dpi) {
    .logo i {
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }
}

/* Reduced motion for accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
    
    .mobile-nav {
        transition: none;
    }
}