:root {
    --primary-gradient: linear-gradient(135deg, #FF6B6B 0%, #6C5CE7 100%);
    --primary-color: #FF6B6B;
    --secondary-color: #6C5CE7;
    --text-dark: #2D3436;
    --text-light: #636E72;
    --white: #FFFFFF;
    --bg-light: #F9F9F9;
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.1);
    --glass-bg: rgba(255, 255, 255, 0.9);
}

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

body {
    font-family: 'Noto Sans SC', sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    overflow-x: hidden;
}

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

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 20px 0;
    transition: background 0.3s ease, padding 0.3s ease;
}

.navbar.scrolled {
    background: var(--glass-bg);
    backdrop-filter: blur(10px);
    padding: 15px 0;
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    text-decoration: none;
    transition: color 0.3s ease;
}

.navbar.scrolled .logo {
    color: var(--primary-color);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav-links a:not(.btn) {
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar.scrolled .nav-links a:not(.btn) {
    color: var(--text-dark);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 24px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 500;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    border: none;
    cursor: pointer;
}

.btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(0,0,0,0.2);
}

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

.btn-glass {
    background: rgba(255, 255, 255, 0.25);
    color: var(--white);
    border: 1px solid rgba(255, 255, 255, 0.5);
    backdrop-filter: blur(8px);
    padding: 12px 32px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 1px;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.btn-glass:hover {
    background: var(--white);
    color: var(--primary-color);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.2);
    transform: translateY(-3px);
}

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

/* Hero Section */
.hero {
    position: relative;
    min-height: 100vh;
    background: var(--primary-gradient);
    display: flex;
    align-items: center;
    padding-top: 80px;
    overflow: hidden;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    position: relative;
    z-index: 2;
}

.hero-text {
    flex: 1;
    color: var(--white);
    max-width: 600px;
}

.hero-text h1 {
    font-size: 48px;
    font-weight: 700;
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero-text p {
    font-size: 18px;
    margin-bottom: 40px;
    opacity: 0.9;
}

.cta-buttons {
    display: flex;
    gap: 20px;
}

.hero-visual {
    flex: 1;
    display: flex;
    justify-content: center;
    position: relative;
}

/* Phone Mockup CSS */
.phone-mockup {
    width: 280px;
    height: 560px;
    background: #fff;
    border-radius: 40px;
    box-shadow: 0 20px 50px rgba(0,0,0,0.3);
    padding: 12px;
    position: relative;
    animation: float 6s ease-in-out infinite;
}

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

.screen {
    background: #F2F2F2;
    width: 100%;
    height: 100%;
    border-radius: 30px;
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.status-bar {
    height: 30px;
    background: var(--primary-color);
    display: flex;
    justify-content: space-between;
    padding: 0 15px;
    align-items: center;
    color: white;
    font-size: 10px;
}

.app-header {
    height: 50px;
    background: var(--primary-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
}

.profile-card {
    background: white;
    margin: 20px;
    border-radius: 20px;
    height: 320px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.05);
    overflow: hidden;
    position: relative;
    display: flex;
    flex-direction: column;
}

.profile-card .avatar {
    flex: 1;
    background-color: #ddd;
    background-image: url('https://images.unsplash.com/photo-1494790108377-be9c29b29330?ixlib=rb-1.2.1&auto=format&fit=crop&w=500&q=60');
    background-size: cover;
    background-position: center;
}

.profile-card .info {
    padding: 15px;
}

.profile-card .info h3 {
    font-size: 18px;
    margin-bottom: 5px;
}

.profile-card .info p {
    font-size: 12px;
    color: #666;
}

.tags {
    display: flex;
    gap: 5px;
    margin-top: 5px;
}

.tags span {
    background: #FFEDF0;
    color: #FF6B6B;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 10px;
}

.action-bar {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: auto;
    padding-bottom: 40px;
}

.btn-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: white;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    font-size: 24px;
    cursor: pointer;
}

.btn-circle.like {
    color: #FF6B6B;
}

.btn-circle.pass {
    color: #ccc;
}

.waves {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    overflow: hidden;
    line-height: 0;
    transform: rotate(180deg);
}

.waves svg {
    position: relative;
    display: block;
    width: calc(100% + 1.3px);
    height: 80px;
}

.waves .shape-fill {
    fill: var(--bg-light);
}

/* Stats Section */
.stats {
    padding: 40px 0;
    background: var(--bg-light);
    margin-top: -20px;
    position: relative;
    z-index: 10;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 30px;
    text-align: center;
}

.stat-item .number {
    display: block;
    font-size: 36px;
    font-weight: 700;
    background: var(--primary-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 5px;
}

.stat-item .label {
    color: var(--text-light);
    font-size: 14px;
}

/* Features Section */
.features {
    padding: 80px 0;
    background: var(--bg-light);
}

.section-title {
    text-align: center;
    font-size: 32px;
    font-weight: 700;
    margin-bottom: 60px;
    color: var(--text-dark);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: 20px;
    box-shadow: var(--shadow-soft);
    text-align: center;
    transition: transform 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-10px);
}

.icon-wrapper {
    width: 70px;
    height: 70px;
    background: #FFEDF0;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 30px;
    margin: 0 auto 20px;
    color: var(--primary-color);
}

.feature-card h3 {
    margin-bottom: 15px;
    font-size: 20px;
}

.feature-card p {
    color: var(--text-light);
    font-size: 14px;
}

/* Footer */
footer {
    background: white;
    padding: 40px 0;
    border-top: 1px solid #eee;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.footer-info .logo {
    color: var(--primary-color);
    display: block;
    margin-bottom: 10px;
}

.footer-info p {
    color: var(--text-light);
    font-size: 14px;
}

.footer-links {
    display: flex;
    gap: 20px;
}

.footer-links a {
    color: var(--text-light);
    text-decoration: none;
    font-size: 14px;
    transition: color 0.3s ease;
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding-bottom: 100px;
        padding-top: 120px;
    }

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

    .hero-text {
        margin-bottom: 50px;
    }

    .hero-text h1 {
        font-size: 36px;
    }

    .cta-buttons {
        justify-content: center;
    }

    .phone-mockup {
        width: 240px;
        height: 480px;
    }

    .stats-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }

    .footer-content {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
}