@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

:root {
    --pink-500: #ec4899;
    --pink-600: #db2777;
    --rose-500: #f43f5e;
    --rose-600: #e11d48;
    --pink-50: #fdf2f8;
    --pink-100: #fce7f3;
    --pink-300: #f9a8d4;
    --rose-300: #fda4af;
    --primary: #0f0f10;
    --muted: #736c64;
    --border: #e5e7eb;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', sans-serif;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    font-size: 16px;
    line-height: 1.6;
    color: var(--primary);
}

html {
    scroll-behavior: smooth;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 1rem;
}

/* Header */
.header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--pink-100);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1rem;
}

.header-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-img {
    height: 2.5rem;
    width: auto;
    border-radius: 0.75rem;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: transform 0.2s, background-color 0.2s, box-shadow 0.2s;
    min-height: 44px;
    border-radius: 0.5rem;
}

.btn:hover {
    transform: translateY(-2px);
}

.btn-primary {
    background: linear-gradient(to right, var(--pink-500), var(--rose-500));
    color: white;
}

.btn-primary:hover {
    background: linear-gradient(to right, var(--pink-600), var(--rose-600));
    box-shadow: 0 12px 24px -8px rgba(236, 72, 153, 0.5);
}

.btn-white {
    background: white;
    color: var(--pink-600);
}

.btn-white:hover {
    background: var(--pink-50);
}

.btn-outline {
    background: white;
    border: 2px solid var(--pink-300);
    color: var(--primary);
}

.btn-outline:hover {
    background: var(--pink-50);
}

.btn-sm {
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
}

.btn-lg {
    font-size: 1rem;
    padding: 1.5rem 2rem;
}

.icon {
    width: 1.25rem;
    height: 1.25rem;
}

.icon-lg {
    width: 2rem;
    height: 2rem;
}

/* Hero Section */
.hero-section {
    padding-top: 5rem;
    padding-bottom: 3rem;
    background: linear-gradient(135deg, #fff5f7 0%, #ffe8ef 50%, #ffd6e0 100%);
    position: relative;
    overflow: hidden;
}

.hero-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255, 182, 193, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 6s ease-in-out infinite;
}

.hero-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -5%;
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(255, 192, 203, 0.25) 0%, transparent 70%);
    border-radius: 50%;
    animation: float 8s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px) translateX(0px);
    }
    50% {
        transform: translateY(-20px) translateX(10px);
    }
}

.hero-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 2rem;
    align-items: center;
    position: relative;
    z-index: 1;
}

.hero-content {
    text-align: center;
}

.hero-text {
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 2.5rem;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 1rem;
    color: var(--primary);
}

.gradient-text {
    display: block;
    background: linear-gradient(to right, var(--pink-500), var(--rose-500));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: var(--muted);
}

.hero-cta {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.download-button {
    width: 100%;
    position: relative;
    overflow: hidden;
}

.download-button::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.download-button:hover::before {
    width: 300px;
    height: 300px;
}

.hero-note {
    font-size: 0.875rem;
    color: var(--muted);
}

.hero-banner {
    position: relative;
}

.banner-container {
    border-radius: 1.5rem;
    overflow: hidden;
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.1);
    transition: transform 0.4s, box-shadow 0.4s;
}

.banner-container:hover {
    transform: scale(1.02) translateY(-4px);
    box-shadow: 0 25px 50px -12px rgba(255, 107, 157, 0.25);
}

.banner-img {
    width: 100%;
    height: auto;
    display: block;
}

.floating-circle {
    position: absolute;
    border-radius: 50%;
    opacity: 0.5;
}

.circle-1 {
    top: -1.5rem;
    right: -1.5rem;
    width: 8rem;
    height: 8rem;
    background: linear-gradient(to bottom right, var(--pink-300), var(--rose-300));
    filter: blur(3rem);
    animation: float 4s ease-in-out infinite;
}

.circle-2 {
    bottom: -1.5rem;
    left: -1.5rem;
    width: 10rem;
    height: 10rem;
    background: linear-gradient(to bottom right, var(--rose-300), var(--pink-300));
    filter: blur(3rem);
    animation: float 6s ease-in-out infinite;
    animation-delay: 1s;
}

/* Earn Money Section */
.earn-section {
    padding: 3rem 1rem;
    background: linear-gradient(to bottom right, var(--pink-500), var(--rose-500));
}

.section-header {
    text-align: center;
    margin-bottom: 2rem;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.section-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 42rem;
    margin: 0 auto;
}

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

.earn-card {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(8px);
    padding: 1.5rem;
    border-radius: 0.5rem;
    transition: transform 0.3s, box-shadow 0.3s;
}

.earn-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.2);
}

.card-icon {
    width: 3rem;
    height: 3rem;
    border-radius: 0.75rem;
    background: linear-gradient(to bottom right, var(--pink-100), var(--rose-100));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pink-600);
    margin-bottom: 0.75rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.card-description {
    font-size: 0.875rem;
    color: var(--muted);
}

.earn-cta {
    text-align: center;
}

/* Features Section */
.features-section {
    padding: 3rem 1rem;
    background: linear-gradient(to bottom, rgba(253, 242, 248, 0.5), white);
}

.section-title-dark {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary);
    text-align: center;
    margin-bottom: 0.75rem;
}

.section-description-dark {
    font-size: 1rem;
    color: var(--muted);
    text-align: center;
    max-width: 42rem;
    margin: 0 auto 2.5rem;
}

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

.feature-card {
    background: white;
    padding: 1.5rem;
    border-radius: 0.5rem;
    border: 1px solid var(--pink-100);
    transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px -12px rgba(255, 107, 157, 0.2);
    border-color: #ffc0cb;
}

.feature-icon {
    width: 3.5rem;
    height: 3.5rem;
    border-radius: 1rem;
    background: linear-gradient(to bottom right, var(--pink-100), var(--rose-100));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pink-600);
    margin-bottom: 0.75rem;
}

.feature-title {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.5rem;
}

.feature-description {
    font-size: 0.875rem;
    color: var(--muted);
}

/* CTA Section */
.cta-section {
    padding: 3rem 1rem;
}

.cta-card {
    background: linear-gradient(to right, var(--pink-500), var(--rose-500));
    padding: 3rem 2rem;
    border-radius: 0.5rem;
    text-align: center;
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.2);
    position: relative;
    overflow: hidden;
}

.cta-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 30% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
    pointer-events: none;
}

.cta-title {
    font-size: 2rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
    position: relative;
}

.cta-description {
    font-size: 1rem;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
    max-width: 42rem;
    margin-left: auto;
    margin-right: auto;
    position: relative;
}

/* Support Section */
.support-section {
    padding: 3rem 1rem;
    background: linear-gradient(to bottom, white, rgba(253, 242, 248, 0.5));
    text-align: center;
}

.support-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    margin-top: 2rem;
}

/* Footer */
.footer {
    background: linear-gradient(to bottom, var(--pink-50), rgba(254, 242, 242, 1));
    padding: 2rem 1rem;
    border-top: 1px solid var(--pink-100);
}

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

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.footer-logo-img {
    height: 2rem;
    width: auto;
    border-radius: 0.5rem;
}

.footer-logo-text {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--primary);
}

.footer-description {
    font-size: 0.875rem;
    color: var(--muted);
}

.footer-title {
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0.75rem;
}

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

.footer-links li {
    margin-bottom: 0.5rem;
}

.footer-links a {
    font-size: 0.875rem;
    color: var(--muted);
    text-decoration: none;
    transition: color 0.2s;
}

.footer-links a:hover {
    color: var(--pink-600);
}

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

.footer-contact li {
    font-size: 0.875rem;
    color: var(--muted);
    margin-bottom: 0.5rem;
}

.footer-bottom {
    padding-top: 1.5rem;
    border-top: 1px solid var(--pink-100);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.875rem;
    color: var(--muted);
}

/* Responsive Design */
@media (min-width: 640px) {
    .support-buttons {
        flex-direction: row;
        justify-content: center;
    }
    
    .btn-lg {
        width: auto;
    }
    
    .download-button {
        width: auto;
    }
}

@media (min-width: 768px) {
    .hero-section {
        padding-top: 6rem;
        padding-bottom: 5rem;
    }
    
    .earn-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .hero-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .hero-content {
        text-align: left;
    }
    
    .hero-title {
        font-size: 3.75rem;
    }
    
    .hero-description {
        font-size: 1.25rem;
    }
    
    .section-title {
        font-size: 2.5rem;
    }
    
    .section-title-dark {
        font-size: 2.5rem;
    }
    
    .section-description {
        font-size: 1.25rem;
    }
    
    .section-description-dark {
        font-size: 1.125rem;
    }
    
    .earn-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(4, 1fr);
    }
    
    .footer-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .cta-title {
        font-size: 2.5rem;
    }
    
    .cta-description {
        font-size: 1.25rem;
    }
}

@media (max-width: 768px) {
    .hero-section::before,
    .hero-section::after {
        width: 300px;
        height: 300px;
    }
}