/* CSS Variables */
:root {
    --primary-color: #0060F0;
    --secondary-color: #4A90E2;
    --background-color: #FAFAFC;
    --surface-color: #FFFFFF;
    --text-primary: #1A1D23;
    --text-secondary: #6B7280;
    --gradient-primary: linear-gradient(135deg, #0060F0 0%, #4A90E2 100%);
    --shadow-soft: 0 4px 20px rgba(0, 96, 240, 0.1);
    --shadow-medium: 0 8px 30px rgba(0, 96, 240, 0.15);
    --border-radius: 16px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

[data-theme="dark"] {
    --primary-color: #4A90E2;
    --secondary-color: #0060F0;
    --background-color: #0F1419;
    --surface-color: #1A1D23;
    --text-primary: #FFFFFF;
    --text-secondary: #B0B0B0;
    --gradient-primary: linear-gradient(135deg, #4A90E2 0%, #0060F0 100%);
    --shadow-soft: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-medium: 0 8px 30px rgba(0, 0, 0, 0.4);
}

/* Import Urbanist Font */
@import url('https://fonts.googleapis.com/css2?family=Urbanist:wght@100;200;300;400;500;600;700;800;900&display=swap');

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

body {
    font-family: 'Urbanist', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--background-color);
    overflow-x: hidden;
}

/* Modern Navigation */
.modern-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--surface-color);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(74, 144, 226, 0.1);
    z-index: 1000;
    transition: var(--transition);
    padding: 0;
}

.modern-nav.scrolled {
    background: var(--surface-color);
    box-shadow: var(--shadow-soft);
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--text-primary);
}

.brand-logo {
    width: 40px;
    height: 40px;
    animation: logoFloat 3s ease-in-out infinite;
}

@keyframes logoFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.brand-name {
    font-size: 1.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
    transition: var(--transition);
}

.nav-link {
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: 25px;
    transition: var(--transition);
    position: relative;
}

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

.nav-link:hover {
    color: var(--primary-color);
    background: rgba(0, 96, 240, 0.05);
}

.nav-link:hover::before {
    width: 80%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    cursor: pointer;
    gap: 4px;
    padding: 5px;
    z-index: 1001;
}

.nav-toggle span {
    width: 25px;
    height: 3px;
    background: var(--primary-color);
    transition: var(--transition);
    border-radius: 2px;
}

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

/* Floating Elements */
.floating-elements {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: -1;
}

.floating-circle {
    position: absolute;
    border-radius: 50%;
    background: rgba(0, 96, 240, 0.03);
    animation: floatCircle 20s ease-in-out infinite;
}

.circle-1 {
    width: 200px;
    height: 200px;
    top: 10%;
    left: 5%;
    animation-delay: 0s;
}

.circle-2 {
    width: 150px;
    height: 150px;
    top: 70%;
    right: 10%;
    animation-delay: -7s;
}

.circle-3 {
    width: 100px;
    height: 100px;
    top: 40%;
    right: 30%;
    animation-delay: -14s;
}

@keyframes floatCircle {
    0%, 100% {
        transform: translateY(0) translateX(0) scale(1);
    }
    25% {
        transform: translateY(-20px) translateX(10px) scale(1.1);
    }
    50% {
        transform: translateY(-10px) translateX(-10px) scale(0.9);
    }
    75% {
        transform: translateY(15px) translateX(5px) scale(1.05);
    }
}

/* Hero Section */
.hero-section {
    background: var(--background-color);
    padding: 140px 0 100px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(0, 96, 240, 0.05) 0%, transparent 70%);
    animation: heroBackground 15s ease-in-out infinite;
}

@keyframes heroBackground {
    0%, 100% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
}

.hero-content {
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: clamp(3rem, 8vw, 5rem);
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1.5rem;
    animation: titleSlideUp 1s ease-out;
}

@keyframes titleSlideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-subtitle {
    font-size: clamp(1.1rem, 2.5vw, 1.25rem);
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 3rem;
    animation: subtitleSlideUp 1s ease-out 0.2s both;
}

@keyframes subtitleSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.download-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
    animation: buttonsSlideUp 1s ease-out 0.4s both;
}

@keyframes buttonsSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.75rem;
    background: var(--surface-color);
    color: var(--text-primary);
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border: 2px solid rgba(0, 96, 240, 0.1);
    transition: var(--transition);
    box-shadow: var(--shadow-soft);
    position: relative;
    overflow: hidden;
}

.download-btn img {
    width: 24px;
    height: 24px;
    transition: var(--transition);
    filter: brightness(0) saturate(100%);
}

/* Dark mode logo filters */
[data-theme="dark"] .download-btn img {
    filter: brightness(0) saturate(100%) invert(100%);
}

.download-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.download-btn:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-medium);
    border-color: var(--primary-color);
    color: white;
}

.download-btn:hover::before {
    left: 0;
    opacity: 1;
}

/* Modern Footer */
.modern-footer {
    background: linear-gradient(135deg, #1A1D23 0%, #2D3748 100%);
    color: white;
    padding: 4rem 0 0;
    position: relative;
    overflow: hidden;
}

.modern-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: var(--gradient-primary);
}

.footer-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.footer-top {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
}

.footer-section {
    animation: footerSlideUp 0.8s ease-out;
}

@keyframes footerSlideUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.footer-brand {
    max-width: 300px;
}

.brand-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 1.5rem;
    font-weight: 800;
    margin-bottom: 1rem;
}

.brand-icon {
    font-size: 1.5rem;
    animation: logoFloat 3s ease-in-out infinite;
}

.brand-description {
    color: rgba(255, 255, 255, 0.8);
    line-height: 1.6;
    margin-bottom: 2rem;
}

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
    color: white;
    text-decoration: none;
    transition: var(--transition);
    backdrop-filter: blur(10px);
}

.social-link:hover {
    background: var(--gradient-primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(0, 96, 240, 0.3);
}

.footer-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: white;
    position: relative;
}

.footer-title::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 0;
    width: 30px;
    height: 2px;
    background: var(--gradient-primary);
    border-radius: 1px;
}

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

.footer-links li {
    margin-bottom: 0.75rem;
}

.footer-links a {
    color: rgba(255, 255, 255, 0.8);
    text-decoration: none;
    transition: var(--transition);
    position: relative;
}

.footer-links a::before {
    content: '';
    position: absolute;
    bottom: -2px;
    left: 0;
    width: 0;
    height: 1px;
    background: var(--gradient-primary);
    transition: var(--transition);
}

.footer-links a:hover {
    color: white;
    padding-left: 5px;
}

.footer-links a:hover::before {
    width: 100%;
}

.download-section {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.footer-download-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(255, 255, 255, 0.1);
    color: white;
    padding: 0.75rem 1.25rem;
    border-radius: 25px;
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    transition: var(--transition);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.footer-download-btn img {
    width: 20px;
    height: 20px;
    filter: brightness(0) invert(1);
    transition: var(--transition);
}

/* Footer images remain white in both modes */
[data-theme="dark"] .footer-download-btn img {
    filter: brightness(0) invert(1);
}

.footer-download-btn:hover {
    background: var(--gradient-primary);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(0, 96, 240, 0.3);
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding: 2rem 0;
}

.footer-bottom-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.copyright {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

.footer-bottom-links {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.footer-divider {
    color: rgba(255, 255, 255, 0.3);
}

.made-with {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9rem;
}

/* Existing styles continue... */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 2.5rem);
    font-weight: 700;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.section-subtitle {
    font-size: 1.125rem;
    color: var(--text-secondary);
    text-align: center;
    max-width: 600px;
    margin: 0 auto 3rem;
}

.features-section {
    padding: 6rem 0;
    background: var(--surface-color);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 2.5rem;
    margin-top: 4rem;
}

.feature-card {
    background: var(--surface-color);
    padding: 3rem 2.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow-soft);
    text-align: center;
    border: 1px solid rgba(0, 96, 240, 0.1);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    min-height: 300px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gradient-primary);
    opacity: 0;
    transition: var(--transition);
    z-index: -1;
}

.feature-card:hover {
    transform: translateY(-15px);
    box-shadow: var(--shadow-medium);
}

.feature-card:hover::before {
    opacity: 0.05;
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: 2rem;
    display: block;
    animation: iconFloat 3s ease-in-out infinite;
}

@keyframes iconFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.feature-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.7;
    font-size: 1.1rem;
}

.stats-section {
    padding: 6rem 0;
    background: var(--background-color);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2rem;
    text-align: center;
}

.stat-item h3 {
    font-size: 3rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 0.5rem;
}

.stat-item p {
    color: var(--text-secondary);
    font-weight: 500;
}

.cta-section {
    background: var(--gradient-primary);
    color: white;
    padding: 6rem 0;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(255,255,255,0.1) 0%, transparent 70%);
    animation: ctaBackground 10s ease-in-out infinite;
}

@keyframes ctaBackground {
    0%, 100% { transform: rotate(0deg) scale(1); }
    50% { transform: rotate(180deg) scale(1.1); }
}

.cta-content {
    position: relative;
    z-index: 1;
}

.cta-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.cta-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    opacity: 0.9;
}

.cta-button {
    display: inline-block;
    background: white;
    color: var(--primary-color);
    padding: 1rem 2.5rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: var(--transition);
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.cta-button:hover {
    transform: translateY(-5px);
    box-shadow: 0 15px 40px rgba(0,0,0,0.3);
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: var(--surface-color);
        backdrop-filter: blur(20px);
        flex-direction: column;
        padding: 6rem 2rem 2rem;
        gap: 2rem;
        box-shadow: var(--shadow-medium);
        transform: translateX(100%);
        opacity: 0;
        visibility: hidden;
        transition: all 0.3s ease-in-out;
        justify-content: flex-start;
        align-items: center;
        z-index: 999;
        border-left: 1px solid rgba(74, 144, 226, 0.1);
    }

    .nav-menu.active {
        transform: translateX(0);
        opacity: 1;
        visibility: visible;
    }

    .nav-toggle {
        display: flex;
    }

    .hero-section {
        padding: 120px 0 80px;
    }

    .download-buttons {
        flex-direction: column;
        align-items: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .feature-card {
        min-height: 250px;
        padding: 2.5rem 2rem;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1.5rem;
    }

    .footer-top {
        grid-template-columns: 1fr;
        gap: 2rem;
        text-align: center;
    }

    .footer-bottom-content {
        flex-direction: column;
        text-align: center;
    }

    .nav-container {
        padding: 1rem;
    }
    
    .theme-toggle {
        width: 35px;
        height: 35px;
        margin-left: 0.5rem;
    }
}

@media (max-width: 480px) {
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .download-section {
        align-items: center;
    }

    .features-grid {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }

    .feature-card {
        min-height: 200px;
        padding: 2rem 1.5rem;
    }
}