:root {
    --primary-color: #007AFF;
    --primary-hover: #0056b3;
    --bg-color: #0c0c0e;
    --card-bg: rgba(255, 255, 255, 0.05);
    --text-color: #ffffff;
    --text-muted: #a0a0a5;
    --highlight-color: #34C759;
    --nav-bg: rgba(12, 12, 14, 0.8);
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Outfit', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-main);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Header & Nav */
header {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    max-width: 1200px;
    margin: 0 auto;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
}

.logo span {
    background: linear-gradient(135deg, #fff 0%, #007AFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

nav ul {
    display: flex;
    list-style: none;
    align-items: center;
}

nav ul li {
    margin-left: 2rem;
}

nav ul li a {
    text-decoration: none;
    color: var(--text-color);
    font-weight: 500;
    transition: color 0.3s;
}

nav ul li a:hover {
    color: var(--primary-color);
}

.btn-download {
    background: var(--primary-color);
    padding: 0.6rem 1.2rem;
    border-radius: 50px;
    font-weight: 600 !important;
    transition: transform 0.2s, background 0.3s !important;
}

.btn-download:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
    color: white !important;
}

/* Hero Section */
.hero {
    padding: 8rem 0 6rem;
    text-align: center;
    background: radial-gradient(circle at top center, rgba(0, 122, 255, 0.15) 0%, transparent 70%);
}

.hero-icon-container {
    margin-bottom: 2rem;
}

.hero-icon {
    width: 120px;
    height: 120px;
    border-radius: 28px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.4);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0% {
        transform: translateY(0px);
    }

    50% {
        transform: translateY(-10px);
    }

    100% {
        transform: translateY(0px);
    }
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 4rem;
    font-weight: 800;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.highlight {
    color: var(--primary-color);
}

.tagline {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.hero-buttons {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    padding: 1rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    font-size: 1.1rem;
    transition: all 0.3s;
    box-shadow: 0 10px 20px rgba(0, 122, 255, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-3px);
    box-shadow: 0 15px 30px rgba(0, 122, 255, 0.4);
}

/* Features */
.features {
    padding: 4rem 0;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 4rem;
    margin-bottom: 8rem;
}

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

.feature-text {
    flex: 1;
}

.feature-text h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.feature-text p {
    font-size: 1.1rem;
    color: var(--text-muted);
}

.feature-image {
    flex: 1;
    background: var(--card-bg);
    padding: 1rem;
    border-radius: 24px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.5);
    transition: transform 0.5s;
}

.feature-image img {
    width: 100%;
    border-radius: 16px;
    display: block;
}

.feature-image:hover {
    transform: scale(1.02);
}

/* Support Section */
.support {
    padding: 6rem 0;
    background: linear-gradient(to bottom, transparent, rgba(0, 122, 255, 0.05));
    text-align: center;
}

.support h2 {
    font-family: var(--font-heading);
    font-size: 3rem;
    margin-bottom: 1rem;
}

.support p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
}

.btn-secondary {
    display: inline-block;
    border: 2px solid var(--primary-color);
    color: var(--primary-color);
    padding: 0.8rem 2rem;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 700;
    transition: all 0.3s;
}

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

/* Privacy Section */
.privacy {
    padding: 6rem 0;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.privacy h2 {
    font-family: var(--font-heading);
    font-size: 2.5rem;
    margin-bottom: 2rem;
    text-align: center;
}

.privacy-content {
    background: var(--card-bg);
    padding: 3rem;
    border-radius: 32px;
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.privacy-content p {
    margin-bottom: 1.5rem;
}

.privacy-content ul {
    list-style: none;
    margin-bottom: 1.5rem;
}

.privacy-content ul li {
    margin-bottom: 0.5rem;
    padding-left: 1.5rem;
    position: relative;
}

.privacy-content ul li::before {
    content: "✓";
    position: absolute;
    left: 0;
    color: var(--highlight-color);
}

/* Footer */
footer {
    padding: 4rem 0;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
}

footer nav {
    justify-content: center;
    margin-top: 1rem;
    border: none;
    background: none;
}

footer nav a {
    margin: 0 1rem;
    text-decoration: none;
    color: var(--text-muted);
    font-size: 0.9rem;
}

footer nav a:hover {
    color: white;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .container {
        padding: 0 1.5rem;
    }

    nav ul {
        display: none;
    }

    /* Simplified for demo */

    .hero h1 {
        font-size: 2.5rem;
    }

    .feature-item,
    .feature-item.reverse {
        flex-direction: column;
        gap: 2rem;
        margin-bottom: 4rem;
        text-align: center;
    }

    .feature-text h2 {
        font-size: 1.8rem;
    }

    .hero {
        padding: 8rem 0 4rem;
    }
}