/* Landing Page Styles */

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
    background-color: #0a0a14;
    color: #e0e0e0;
    line-height: 1.6;
    overflow-x: hidden;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    background: url('../images/back.jfif') center center / cover no-repeat fixed;
    overflow: hidden;
}

/* Frosted glass overlay */
.hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 20, 0.6);
    backdrop-filter: blur(12px) saturate(150%);
    -webkit-backdrop-filter: blur(12px) saturate(150%);
    z-index: 1;
}

.hero-content {
    text-align: center;
    padding: 0 20px;
    animation: fadeInUp 0.8s ease-out;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-family: 'Orbitron', sans-serif;
    font-size: 4.5rem;
    font-weight: 900;
    color: #fff;
    margin-bottom: 1rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.hero-title-accent {
    background: linear-gradient(135deg, #4299e1 0%, #805ad5 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.5rem;
    color: #a0aec0;
    margin-bottom: 3rem;
    max-width: 600px;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* Buttons */
.btn {
    padding: 14px 32px;
    font-size: 1.1rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-block;
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, #4299e1 0%, #3182ce 100%);
    color: #fff;
    box-shadow: 0 4px 15px rgba(66, 153, 225, 0.3);
}

.btn-primary:hover {
    background: linear-gradient(135deg, #3182ce 0%, #2b6cb0 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(66, 153, 225, 0.5);
}

.btn-secondary {
    background: rgba(66, 153, 225, 0.1);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    color: #4299e1;
    border: 1px solid rgba(66, 153, 225, 0.4);
}

.btn-secondary:hover {
    background: rgba(66, 153, 225, 0.2);
    border-color: rgba(66, 153, 225, 0.6);
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(66, 153, 225, 0.2);
}

.btn-full {
    width: 100%;
}

/* Scroll Indicator */
.scroll-indicator {
    position: absolute;
    bottom: 40px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: #718096;
    font-size: 0.9rem;
    cursor: pointer;
    animation: bounce 2s infinite;
    z-index: 2;
}

.arrow-down {
    width: 24px;
    height: 24px;
    border-right: 2px solid #718096;
    border-bottom: 2px solid #718096;
    transform: rotate(45deg);
}

/* Features Section */
.features {
    padding: 100px 20px;
    max-width: 100%;
    position: relative;
    background: url('../images/back.jfif') center center / cover no-repeat fixed;
}

.features::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(10, 10, 20, 0.75);
    backdrop-filter: blur(16px) saturate(120%);
    -webkit-backdrop-filter: blur(16px) saturate(120%);
    z-index: 0;
}

.features-container {
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.section-title {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 60px;
    color: #fff;
    position: relative;
    z-index: 1;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
    position: relative;
    z-index: 1;
}

.feature-card {
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: all 0.4s ease;
}

.feature-card:hover {
    transform: translateY(-8px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(66, 153, 225, 0.4);
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.4), 0 0 40px rgba(66, 153, 225, 0.1);
}

.feature-icon {
    width: 64px;
    height: 64px;
    margin: 0 auto 24px;
    color: #4299e1;
}

.feature-icon svg {
    width: 100%;
    height: 100%;
}

.feature-card h3 {
    font-size: 1.4rem;
    color: #fff;
    margin-bottom: 16px;
}

.feature-card p {
    color: #a0aec0;
    font-size: 1rem;
    line-height: 1.8;
}

/* Modal */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal {
    background: rgba(30, 42, 58, 0.85);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 40px;
    max-width: 440px;
    width: 90%;
    position: relative;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    box-shadow: 0 25px 50px rgba(0, 0, 0, 0.5);
}

.modal-overlay.active .modal {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    background: none;
    border: none;
    color: #718096;
    font-size: 28px;
    cursor: pointer;
    transition: color 0.3s ease;
    line-height: 1;
}

.modal-close:hover {
    color: #fff;
}

.modal-title {
    font-size: 1.5rem;
    color: #fff;
    margin-bottom: 24px;
    text-align: center;
}

/* Form */
.subscribe-form {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    color: #a0aec0;
    margin-bottom: 8px;
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 14px 16px;
    font-size: 1rem;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #4299e1;
    background: rgba(66, 153, 225, 0.1);
}

.form-group input::placeholder {
    color: #718096;
}

/* Form Success */
.form-success {
    text-align: center;
    padding: 20px;
}

.success-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: rgba(72, 187, 120, 0.2);
    color: #48bb78;
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 16px;
}

.form-success p {
    color: #a0aec0;
}

/* QR Code */
.qrcode-section {
    text-align: center;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.qrcode-text {
    color: #718096;
    font-size: 0.9rem;
    margin-bottom: 16px;
}

.qrcode-img {
    max-width: 180px;
    border-radius: 8px;
}

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

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

@keyframes blobMove {
    0%, 100% {
        transform: translate(0, 0) rotate(0deg);
    }
    25% {
        transform: translate(5%, 5%) rotate(90deg);
    }
    50% {
        transform: translate(-5%, 10%) rotate(180deg);
    }
    75% {
        transform: translate(10%, -5%) rotate(270deg);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }

    .hero-subtitle {
        font-size: 1.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        gap: 1rem;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .section-title {
        font-size: 1.8rem;
    }

    .features {
        padding: 60px 20px;
    }

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

    .modal {
        padding: 30px 20px;
    }
}