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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    line-height: 1.6;
    color: #1a1a1a;
    background: #ffffff;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.gradient-text {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Container */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.nav-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.logo-text {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.logo-ever {
    color: #1a1a1a;
}

.logo-habit {
    color: #10b981;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-link {
    text-decoration: none;
    color: #6b7280;
    font-weight: 500;
    font-size: 15px;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: #10b981;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: #10b981;
    transition: width 0.3s ease;
}

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

.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 4px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.mobile-menu-btn span {
    width: 24px;
    height: 2px;
    background: #1a1a1a;
    transition: all 0.3s ease;
}

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 120px 0 80px;
    overflow: hidden;
}

.hero-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
    position: relative;
    z-index: 2;
}

.hero-content {
    max-width: 600px;
}

.hero-badge {
    display: inline-block;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
    padding: 8px 16px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.2s both;
}

.hero-title {
    font-size: clamp(48px, 5vw, 64px);
    font-weight: 900;
    margin-bottom: 24px;
    animation: fadeInUp 0.8s ease 0.4s both;
}

.hero-subtitle {
    font-size: 20px;
    color: #6b7280;
    margin-bottom: 40px;
    line-height: 1.6;
    animation: fadeInUp 0.8s ease 0.6s both;
}

.hero-cta {
    display: flex;
    align-items: center;
    gap: 24px;
    margin-bottom: 48px;
    animation: fadeInUp 0.8s ease 0.8s both;
}

.app-store-badge {
    height: 56px;
    transition: transform 0.3s ease;
}

.app-store-badge:hover {
    transform: scale(1.05);
}

.cta-secondary {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #1a1a1a;
    text-decoration: none;
    font-weight: 600;
    font-size: 16px;
    transition: all 0.3s ease;
}

.cta-secondary:hover {
    color: #10b981;
    transform: translateX(4px);
}

.hero-stats {
    display: flex;
    gap: 48px;
    animation: fadeInUp 0.8s ease 1s both;
}

.stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-number {
    font-size: 24px;
    font-weight: 800;
    color: #1a1a1a;
}

.stat-label {
    font-size: 14px;
    color: #6b7280;
    font-weight: 500;
}

.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.phone-mockup {
    position: relative;
    animation: fadeInRight 1s ease 0.5s both;
}

.phone-screen {
    width: 300px;
    height: auto;
    border-radius: 24px;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.15);
    position: relative;
    z-index: 2;
}

.phone-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, transparent 70%);
    border-radius: 50%;
    animation: pulse 3s ease-in-out infinite;
}

.floating-elements {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

.floating-card {
    position: absolute;
    background: white;
    border-radius: 16px;
    padding: 16px 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 600;
    font-size: 14px;
    animation: float 3s ease-in-out infinite;
}

.card-1 {
    top: 20%;
    right: -20px;
    animation-delay: 0s;
}

.card-2 {
    top: 60%;
    left: -40px;
    animation-delay: 1s;
}

.card-3 {
    bottom: 20%;
    right: -30px;
    animation-delay: 2s;
}

.card-icon {
    font-size: 20px;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1;
}

.bg-gradient {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, #f0fdf4 0%, #ffffff 50%, #f0f9ff 100%);
}

.bg-grid {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-image: 
        linear-gradient(rgba(16, 185, 129, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(16, 185, 129, 0.05) 1px, transparent 1px);
    background-size: 40px 40px;
    animation: gridMove 20s linear infinite;
}

/* Features Section */
.features {
    padding: 120px 0;
    background: #fafafa;
}

.section-header {
    text-align: center;
    margin-bottom: 80px;
}

.section-title {
    font-size: clamp(36px, 4vw, 48px);
    font-weight: 900;
    margin-bottom: 16px;
}

.section-subtitle {
    font-size: 20px;
    color: #6b7280;
    max-width: 600px;
    margin: 0 auto;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.feature-card {
    background: white;
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: all 0.3s ease;
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.1);
}

.card-large {
    grid-column: span 2;
}

.card-wide {
    grid-column: span 2;
}

.card-accent {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    color: white;
}

.card-accent .feature-icon {
    color: white;
}

.feature-icon {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    margin-bottom: 24px;
}

.card-accent .feature-icon {
    background: rgba(255, 255, 255, 0.2);
}

.feature-title {
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-description {
    color: #6b7280;
    font-size: 16px;
    line-height: 1.6;
}

.card-accent .feature-description {
    color: rgba(255, 255, 255, 0.9);
}

/* Screenshots Section */
.screenshots {
    padding: 120px 0;
    background: white;
}

.screenshots-carousel {
    display: flex;
    gap: 16px;
    justify-content: center;
    margin-bottom: 40px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    padding: 0 20px;
}

.screenshot-item {
    flex: 0 0 auto;
    text-align: center;
    scroll-snap-align: center;
    opacity: 0.6;
    transition: all 0.3s ease;
    transform: scale(0.9);
}

.screenshot-item.active {
    opacity: 1;
    transform: scale(1);
}

.screenshot-img {
    width: 250px;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    margin-bottom: 24px;
}

.screenshot-info h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #1a1a1a;
}

.screenshot-info p {
    color: #6b7280;
    font-size: 16px;
}

.carousel-dots {
    display: flex;
    justify-content: center;
    gap: 12px;
}

.dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    border: none;
    background: #d1d5db;
    cursor: pointer;
    transition: all 0.3s ease;
}

.dot.active {
    background: #10b981;
    transform: scale(1.2);
}

/* Download Section */
.download {
    padding: 120px 0;
    background: linear-gradient(135deg, #1a1a1a 0%, #2d2d2d 100%);
    color: white;
}

.download-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.download-header {
    margin-bottom: 48px;
}

.download-title {
    font-size: clamp(36px, 4vw, 48px);
    font-weight: 900;
    margin-bottom: 24px;
}

.download-subtitle {
    font-size: 20px;
    color: #d1d5db;
    margin-bottom: 0;
    line-height: 1.6;
    max-width: 600px;
    margin: 0 auto;
}

.download-features {
    display: flex;
    justify-content: center;
    gap: 40px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.download-feature {
    display: flex;
    align-items: center;
    gap: 12px;
    color: #d1d5db;
    font-size: 16px;
    font-weight: 500;
}

.download-feature svg {
    color: #10b981;
    flex-shrink: 0;
}

.download-cta {
    margin-bottom: 48px;
}

.app-store-large {
    height: 64px;
    transition: transform 0.3s ease;
}

.app-store-large:hover {
    transform: scale(1.05);
}

.download-stats {
    display: flex;
    justify-content: center;
    gap: 48px;
    flex-wrap: wrap;
}

.download-stat {
    display: flex;
    flex-direction: column;
    gap: 4px;
    text-align: center;
}

.download-stat .stat-number {
    font-size: 24px;
    font-weight: 800;
    color: white;
}

.download-stat .stat-label {
    font-size: 14px;
    color: #9ca3af;
    font-weight: 500;
}



/* Footer */
.footer {
    background: #1a1a1a;
    color: white;
    padding: 80px 0 40px;
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 80px;
    margin-bottom: 40px;
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}

.footer-description {
    color: #9ca3af;
    font-size: 16px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 40px;
}

.footer-column h4 {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    color: white;
}

.footer-column a {
    display: block;
    color: #9ca3af;
    text-decoration: none;
    font-size: 15px;
    margin-bottom: 12px;
    transition: color 0.3s ease;
}

.footer-column a:hover {
    color: #10b981;
}

.footer-bottom {
    text-align: center;
    padding-top: 40px;
    border-top: 1px solid #374151;
    color: #9ca3af;
    font-size: 14px;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1);
        opacity: 0.5;
    }
    50% {
        transform: translate(-50%, -50%) scale(1.1);
        opacity: 0.3;
    }
}

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

@keyframes gridMove {
    0% {
        transform: translate(0, 0);
    }
    100% {
        transform: translate(40px, 40px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-links {
        display: none;
    }
    
    .mobile-menu-btn {
        display: flex;
    }
    
    .hero-container {
        grid-template-columns: 1fr;
        gap: 40px;
        text-align: center;
    }
    
    .hero-stats {
        justify-content: center;
        gap: 32px;
    }
    
    .hero-cta {
        justify-content: center;
        flex-wrap: wrap;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .card-large,
    .card-wide {
        grid-column: span 1;
    }
    
    .screenshots-carousel {
        gap: 12px;
    }
    
    .screenshot-img {
        width: 200px;
    }
    
    .download-features {
        gap: 24px;
    }
    
    .download-stats {
        gap: 32px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-links {
        grid-template-columns: 1fr;
        gap: 32px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    .nav-container {
        padding: 0 16px;
    }
    
    .hero {
        padding: 100px 0 60px;
    }
    
    .hero-container {
        padding: 0 16px;
    }
    
    .features,
    .screenshots,
    .download {
        padding: 80px 0;
    }
    
    .section-header {
        margin-bottom: 60px;
    }
    
    .feature-card {
        padding: 24px;
    }
    

}