:root {
    --primary-color: #4B0082; /* Deep violet */
    --primary-light: #7209b7;
    --accent-color: #f72585;  /* Neon pink */
    --text-main: #ffffff;
    --text-muted: #b0b0b0;
    --bg-dark: #121212;
    --bg-card: rgba(255, 255, 255, 0.05);
    --border-color: rgba(255, 255, 255, 0.1);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-dark);
    color: var(--text-main);
    line-height: 1.6;
}

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

/* === Navbar === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(18, 18, 18, 0.8);
    backdrop-filter: blur(15px);
    border-bottom: 1px solid var(--border-color);
    padding: 15px 0;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
    text-decoration: none;
    background: linear-gradient(to right, var(--accent-color), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    list-style: none;
    gap: 30px;
}

.nav-links a {
    color: white;
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s;
    font-size: 0.95rem;
}

.nav-links a:hover {
    color: var(--accent-color);
}

/* === Hero Section === */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    background: linear-gradient(135deg, var(--bg-dark) 0%, var(--primary-color) 150%);
    position: relative;
    overflow: hidden;
}

.hero::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 800px;
    height: 800px;
    background: radial-gradient(circle, var(--primary-light) 0%, transparent 60%);
    opacity: 0.3;
    z-index: 0;
}

.hero-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
    position: relative;
    z-index: 1;
    padding-top: 80px;
    padding-bottom: 80px;
}

.hero-text {
    flex: 1;
    max-width: 600px;
}

.hero-text h1 {
    font-size: 4rem;
    font-weight: 700;
    margin-bottom: 10px;
    background: linear-gradient(to right, #fff, #e0e0e0);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.subtitle {
    font-size: 1.8rem;
    color: var(--accent-color);
    font-weight: 500;
    margin-bottom: 24px;
}

.description {
    font-size: 1.1rem;
    color: var(--text-muted);
    margin-bottom: 40px;
}

.btn {
    display: inline-block;
    padding: 14px 28px;
    border-radius: 30px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
}

.btn-primary {
    background: var(--accent-color);
    color: white;
    box-shadow: 0 4px 15px rgba(247, 37, 133, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(247, 37, 133, 0.7);
    filter: brightness(1.2);
}

.btn-large {
    padding: 18px 36px;
    font-size: 1.2rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-fixed {
    min-width: 240px;
}

.btn-icon {
    font-size: 1.6rem;
    margin-right: 12px;
    line-height: 1;
}

.btn-img-icon {
    width: 24px;
    height: 24px;
    margin-right: 12px;
    object-fit: contain;
}

.store-buttons {
    display: flex;
    gap: 20px;
    flex-wrap: wrap;
    margin-top: 20px;
}

.btn-outline {
    background: transparent;
    color: white;
    border: 2px solid var(--primary-light);
    box-shadow: 0 4px 15px rgba(114, 9, 183, 0.2);
}

.btn-outline:hover {
    background: var(--primary-light);
    transform: translateY(-3px) scale(1.02);
    box-shadow: 0 8px 25px rgba(114, 9, 183, 0.5);
    filter: brightness(1.1);
}

.hero-image {
    flex: 1;
    display: flex;
    justify-content: center;
}

.phone-mockup {
    max-height: 600px;
    border-radius: 40px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.5);
    border: 8px solid #2a2a2a;
}

/* === Instructions Section === */
.instructions {
    padding: 100px 0;
    background-color: var(--bg-dark);
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 60px;
    font-weight: 700;
}

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

.step-card {
    background: var(--bg-card);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px 30px;
    text-align: center;
    transition: transform 0.3s ease;
}

.step-card:hover {
    transform: translateY(-10px);
    border-color: var(--primary-light);
}

.step-number {
    width: 60px;
    height: 60px;
    background: var(--primary-light);
    color: white;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
}

.step-card h3 {
    margin-bottom: 15px;
    font-size: 1.3rem;
}

.step-card p {
    color: var(--text-muted);
}

/* === Features Section === */
.features {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--bg-dark) 0%, #0a0a0a 100%);
}

.feature-list {
    display: flex;
    flex-direction: column;
    gap: 80px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 50px;
}

.feature-item.reverse {
    flex-direction: row-reverse;
}

.feature-img {
    flex: 1;
    max-height: 500px;
    object-fit: contain;
    border-radius: 30px;
}

.feature-text {
    flex: 1;
}

.feature-text h3 {
    font-size: 2rem;
    margin-bottom: 20px;
    color: var(--primary-light);
}

/* === Privacy Policy Document === */
.legal-page {
    background: #ffffff;
    color: #333333;
}

.simple-header {
    background: var(--primary-color);
    padding: 40px 0;
    margin-bottom: 40px;
    color: white;
}

.back-link {
    color: rgba(255,255,255,0.8);
    text-decoration: none;
    display: inline-block;
    margin-bottom: 20px;
}

.back-link:hover {
    color: white;
    text-decoration: underline;
}

.legal-content .document-body {
    max-width: 800px;
    margin: 0 auto;
    padding-bottom: 80px;
}

.document-body h2 {
    margin-top: 40px;
    margin-bottom: 15px;
    color: var(--primary-color);
}

.document-body p, .document-body ul {
    margin-bottom: 16px;
    font-size: 1.1rem;
}

.document-body ul {
    padding-left: 24px;
}

.document-body li {
    margin-bottom: 8px;
}

/* === Architecture Section === */
.architecture {
    padding: 100px 0;
    background-color: var(--bg-dark);
}

.architecture-grid, .architecture-single {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 40px;
}

.architecture-single {
    max-width: 900px;
    margin: 0 auto;
    display: block;
}

.arch-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    overflow: hidden;
    padding: 30px;
    transition: transform 0.3s ease;
}

.arch-card:hover {
    transform: translateY(-5px);
    border-color: var(--primary-light);
}

.arch-img {
    width: 100%;
    height: auto;
    border-radius: 10px;
    margin-bottom: 20px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
}

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

.arch-card p {
    color: var(--text-muted);
    text-align: center;
}

/* === Feedback Section === */
.feedback {
    padding: 100px 0;
    background: linear-gradient(0deg, var(--bg-dark) 0%, #0a0a0a 100%);
}

.feedback-container {
    max-width: 600px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 40px;
}

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

.feedback-form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #e0e0e0;
}

.feedback-form input,
.feedback-form textarea {
    width: 100%;
    padding: 15px;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    background: rgba(0, 0, 0, 0.2);
    color: white;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: border-color 0.3s;
}

.feedback-form input:focus,
.feedback-form textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.feedback-form button {
    width: 100%;
    border: none;
    cursor: pointer;
    font-size: 1.1rem;
}

.form-status {
    margin-top: 15px;
    text-align: center;
    font-weight: 500;
}

/* === Footer === */
footer {
    background: #000;
    padding: 40px 0;
    border-top: 1px solid #222;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #888;
}

.footer-links a {
    color: var(--primary-light);
    text-decoration: none;
}

.legal-footer {
    background: #f5f5f5;
    border-top: 1px solid #ddd;
    color: #666;
}

/* === Media Queries === */
@media (max-width: 768px) {
    .hero-content {
        flex-direction: column;
        text-align: center;
    }
    .hero-text h1 {
        font-size: 3rem;
    }
    .feature-item, .feature-item.reverse {
        flex-direction: column;
        text-align: center;
    }
    .footer-content {
        flex-direction: column;
        gap: 15px;
    }
}