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

:root {
    --primary-pink: #FF6B9D;
    --primary-red: #FF5F6D;
    --primary-orange: #FFC371;
    --playful-teal: #4ECDC4;
    --dark-bg: #0D0F12;
    --light-bg: #181A1E;
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.8);
    --shadow-glow: rgba(255, 107, 157, 0.3);
}

html {
    scroll-behavior: smooth;
}

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

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--primary-red) 0%, var(--primary-pink) 50%, var(--primary-orange) 100%);
}

.hero-background {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle at 20% 50%, rgba(255, 107, 157, 0.3) 0%, transparent 50%),
                radial-gradient(circle at 80% 80%, rgba(255, 195, 113, 0.3) 0%, transparent 50%);
    animation: pulse 8s ease-in-out infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
    padding: 40px 20px;
}

.logo {
    width: 120px;
    height: 120px;
    margin-bottom: 30px;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.3));
    animation: float 3s ease-in-out infinite;
}

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

.hero h1 {
    font-size: clamp(2.5rem, 6vw, 4rem);
    font-weight: 800;
    margin-bottom: 20px;
    text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
    font-size: clamp(1.2rem, 3vw, 1.8rem);
    font-weight: 600;
    margin-bottom: 15px;
    opacity: 0.95;
}

.hero-description {
    font-size: clamp(1rem, 2vw, 1.2rem);
    max-width: 600px;
    margin: 0 auto 40px;
    opacity: 0.9;
    line-height: 1.8;
}

/* CTA Button */
.cta-button, .cta-button-large {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    padding: 18px 40px;
    background: rgba(0, 0, 0, 0.9);
    color: white;
    text-decoration: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    transition: all 0.3s ease;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.4);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.cta-button:hover, .cta-button-large:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 50px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.4);
}

.cta-button-large {
    padding: 22px 50px;
    font-size: 1.3rem;
}

.apple-icon {
    width: 24px;
    height: 24px;
}

.download-note {
    margin-top: 20px;
    font-size: 0.9rem;
    opacity: 0.8;
}

/* Animations */
.fade-in {
    animation: fadeIn 1s ease-out;
}

.fade-in-up {
    animation: fadeInUp 1s ease-out;
}

.delay-1 { animation-delay: 0.2s; opacity: 0; animation-fill-mode: forwards; }
.delay-2 { animation-delay: 0.4s; opacity: 0; animation-fill-mode: forwards; }
.delay-3 { animation-delay: 0.6s; opacity: 0; animation-fill-mode: forwards; }
.delay-4 { animation-delay: 0.8s; opacity: 0; animation-fill-mode: forwards; }

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

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

/* Features Section */
.features {
    padding: 100px 20px;
    background: var(--dark-bg);
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    text-align: center;
    margin-bottom: 20px;
    background: linear-gradient(135deg, var(--primary-pink), var(--primary-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 60px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

.feature-card {
    background: var(--light-bg);
    padding: 40px 30px;
    border-radius: 20px;
    text-align: center;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card:hover {
    transform: translateY(-10px);
    box-shadow: 0 20px 60px rgba(255, 107, 157, 0.2);
    border-color: var(--primary-pink);
}

.feature-icon {
    font-size: 3.5rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.feature-card p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* Personas Section */
.personas {
    padding: 100px 20px;
    background: linear-gradient(180deg, var(--dark-bg) 0%, var(--light-bg) 100%);
}

.personas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 60px;
}

@media (min-width: 1024px) {
    .personas-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.persona-card {
    background: rgba(255, 255, 255, 0.05);
    padding: 35px 25px;
    border-radius: 20px;
    text-align: center;
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
}

.persona-card:hover {
    transform: scale(1.05);
    box-shadow: 0 15px 50px rgba(255, 107, 157, 0.3);
}

.persona-badge {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 15px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.persona-badge.romantic { background: var(--primary-pink); color: white; }
.persona-badge.playful { background: var(--playful-teal); color: white; }
.persona-badge.supportive { background: #2ECC71; color: white; }
.persona-badge.creative { background: #9B59B6; color: white; }

.persona-card h3 {
    font-size: 1.8rem;
    margin-bottom: 15px;
}

.persona-card p {
    color: var(--text-secondary);
    line-height: 1.7;
}

.persona-occupation {
    font-size: 0.9rem;
    color: var(--primary-orange);
    font-weight: 600;
    margin-bottom: 10px;
    font-style: italic;
}

.persona-interests {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 15px;
}

.persona-interests span {
    background: rgba(255, 255, 255, 0.1);
    padding: 6px 12px;
    border-radius: 15px;
    font-size: 0.85rem;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

/* How It Works Section */
.how-it-works {
    padding: 100px 20px;
    background: var(--dark-bg);
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 40px;
    margin-top: 60px;
}

.step {
    text-align: center;
    padding: 30px;
}

.step-number {
    width: 80px;
    height: 80px;
    margin: 0 auto 25px;
    background: linear-gradient(135deg, var(--primary-pink), var(--primary-orange));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    font-weight: 800;
    box-shadow: 0 10px 30px var(--shadow-glow);
}

.step h3 {
    font-size: 1.5rem;
    margin-bottom: 15px;
}

.step p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* SEO Content Section */
.seo-content {
    padding: 100px 20px;
    background: var(--light-bg);
}

.seo-content-grid {
    display: grid;
    gap: 50px;
    max-width: 900px;
    margin: 0 auto;
}

.seo-block {
    background: rgba(255, 255, 255, 0.03);
    padding: 40px;
    border-radius: 15px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.seo-block h2 {
    font-size: clamp(1.5rem, 4vw, 2rem);
    margin-bottom: 20px;
    color: var(--text-primary);
    background: linear-gradient(135deg, var(--primary-pink), var(--primary-orange));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.seo-block p {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 15px;
    font-size: 1.05rem;
}

.seo-block p:last-child {
    margin-bottom: 0;
}

.seo-list {
    list-style: none;
    padding: 0;
    margin: 20px 0;
}

.seo-list li {
    color: var(--text-secondary);
    line-height: 1.9;
    margin-bottom: 15px;
    padding-left: 30px;
    position: relative;
    font-size: 1.05rem;
}

.seo-list li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--primary-pink);
    font-weight: bold;
    font-size: 1.2rem;
}

.seo-list li strong {
    color: var(--text-primary);
    font-weight: 600;
}

/* CTA Section */
.cta-section {
    padding: 100px 20px;
    background: linear-gradient(135deg, var(--primary-red), var(--primary-pink));
    text-align: center;
}

.cta-section h2 {
    font-size: clamp(2rem, 5vw, 3rem);
    margin-bottom: 20px;
}

.cta-section p {
    font-size: 1.3rem;
    margin-bottom: 40px;
    opacity: 0.95;
}

/* Footer */
.footer {
    background: var(--dark-bg);
    padding: 60px 20px 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 30px;
    margin-bottom: 30px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 15px;
}

.footer-logo-img {
    width: 50px;
    height: 50px;
}

.footer-logo p {
    font-size: 1.2rem;
    font-weight: 600;
}

.footer-links {
    display: flex;
    gap: 30px;
    flex-wrap: wrap;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.footer-bottom {
    text-align: center;
    padding-top: 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero {
        min-height: 90vh;
    }

    .logo {
        width: 100px;
        height: 100px;
    }

    .features-grid,
    .personas-grid,
    .steps-grid {
        grid-template-columns: 1fr;
    }

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

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

    .cta-button, .cta-button-large {
        padding: 16px 30px;
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .hero-content {
        padding: 20px 10px;
    }

    .features,
    .personas,
    .how-it-works,
    .cta-section {
        padding: 60px 15px;
    }

    .feature-card,
    .persona-card {
        padding: 30px 20px;
    }
}

/* Performance Optimizations */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Loading State */
.loading {
    opacity: 0;
    transition: opacity 0.3s ease;
}

.loaded {
    opacity: 1;
}

/* Smooth Scrolling Enhancement */
@supports (scroll-behavior: smooth) {
    html {
        scroll-behavior: smooth;
    }
}