:root {
    --bg-dark: #000000;
    --bg-blue: #05051a;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-start: #ff4b72;
    --accent-end: #ff914d;
    --surface: rgba(20, 20, 30, 0.6);
    --surface-border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background: linear-gradient(180deg, var(--bg-dark) 0%, #06092b 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    padding-bottom: 50px;
}

/* Background elements */
.fireworks-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    pointer-events: none;
}

/* Starry background using multiple box shadows trick */
.stars {
    position: fixed;
    top: 0;
    left: 0;
    width: 2px;
    height: 2px;
    background: transparent;
    z-index: 0;
    pointer-events: none;
}

/* Layout */
nav, main, section {
    position: relative;
    z-index: 10;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 1rem 3rem;
    max-width: 1000px;
    margin: 0 auto;
    backdrop-filter: blur(12px);
    border: 1px solid var(--surface-border);
    border-radius: 50px;
    margin-top: 1.5rem;
    animation: fadeIn 0.4s ease-out forwards;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.2rem;
    width: 100%;
    text-align: center;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.nav-links a, .login {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover, .login:hover {
    color: var(--text-primary);
}

.user-greeting {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.btn-dashboard {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    text-decoration: none;
    padding: 0.6rem 1.2rem;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    border: 1px solid var(--surface-border);
    transition: background 0.2s;
}

.btn-dashboard:hover {
    background: rgba(255, 255, 255, 0.1);
}

.logout {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    transition: color 0.2s;
}

.logout:hover {
    color: var(--text-primary);
}

/* Hero Section */
.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 4rem 1rem;
    margin-top: 2rem;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    opacity: 0;
    animation: fadeIn 0.4s ease-out 0.1s forwards;
}

.hero-logo {
    width: 800px;
    max-width: 90vw;
    height: auto;
    object-fit: contain;
    margin-bottom: 2rem;
    pointer-events: none;
    user-select: none;
    -webkit-user-drag: none;
}

.hero-title {
    font-size: 2.2rem; 
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 2rem;
    letter-spacing: -0.5px;
}

.gradient-text {
    /* Gradient specifically over the second part as in original */
    background: linear-gradient(90deg, #ffffff 0%, var(--accent-start) 40%, var(--accent-end) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    color: var(--text-secondary);
    font-size: 1rem;
    line-height: 1.6;
    max-width: 500px;
    margin-bottom: 2.5rem;
}

.btn-signup-hero {
    background: linear-gradient(90deg, #00c6ff 0%, #0072ff 100%);
    color: white;
    text-decoration: none;
    padding: 0.9rem 2.2rem;
    border-radius: 30px;
    font-size: 1rem;
    font-weight: 600;
    box-shadow: 0 10px 30px rgba(0, 198, 255, 0.4);
    transition: transform 0.2s, box-shadow 0.2s;
}

.btn-signup-hero:hover {
    transform: translateY(-2px);
    box-shadow: 0 15px 40px rgba(0, 114, 255, 0.6);
}

/* Mockups Section */
.mockup-section {
    position: relative;
    margin-top: 5rem;
    width: 100%;
    max-width: 900px;
    height: 500px;
    perspective: 1000px;
    opacity: 0;
    animation: fadeIn 0.4s ease-out 0.2s forwards;
}

.mockup-mobile {
    position: absolute;
    right: 0px;
    top: 50px;
    width: 250px;
    height: 500px;
    background: #0f101e;
    border-radius: 30px;
    border: 8px solid #1a1b2e;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    box-shadow: -20px 20px 60px rgba(0,0,0,0.5);
    z-index: 1;
    transform: rotate(5deg) scale(0.9) rotateY(20deg) rotateX(10deg);
}

.mockup-mobile::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 25px;
    background: #1a1b2e;
    border-bottom-left-radius: 15px;
    border-bottom-right-radius: 15px;
    z-index: 10;
}

.m-graph-header {
    width: 100%;
    margin-bottom: auto;
}

.m-graph-title {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.3rem;
}

.m-graph-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

.m-graph-container {
    width: 100%;
    height: 150px;
    margin-top: auto;
    position: relative;
}

.m-graph-container svg {
    width: 100%;
    height: 100%;
    display: block;
}

.mockup-dashboard {
    position: absolute;
    left: 0px;
    top: 0;
    width: 700px;
    height: 420px;
    background: #111119;
    border-radius: 16px;
    border: 1px solid var(--surface-border);
    box-shadow: 0 30px 60px rgba(0,0,0,0.6), 0 0 40px rgba(255, 75, 114, 0.05);
    z-index: 2;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: rotate(-2deg) rotateY(-20deg) rotateX(10deg);
}

.d-header {
    height: 40px;
    background: #161622;
    border-bottom: 1px solid var(--surface-border);
    display: flex;
    align-items: center;
    padding: 0 1rem;
}

.window-controls {
    display: flex;
    gap: 8px;
}

.window-controls span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: #ff5f56;
}
.window-controls span:nth-child(2) { background: #ffbd2e; }
.window-controls span:nth-child(3) { background: #27c93f; }

.d-body {
    display: flex;
    flex: 1;
}

.d-sidebar {
    width: 200px;
    border-right: 1px solid var(--surface-border);
    padding: 1.5rem;
    background: rgba(0,0,0,0.2);
}

.d-user {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 2rem;
}

.d-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    background: #ff4b72;
}

.d-user-info {
    display: flex;
    flex-direction: column;
}

.d-welcome { font-size: 0.7rem; color: var(--text-secondary); }
.d-username { font-size: 0.85rem; font-weight: 600; }

.d-nav { list-style: none; }
.d-nav li {
    padding: 0.8rem 1rem;
    margin-bottom: 0.5rem;
    border-radius: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
    cursor: pointer;
}

.d-nav li.active {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.d-content {
    flex: 1;
    padding: 2rem;
}

.d-content h2 {
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
    font-weight: 600;
}

.d-stats {
    display: flex;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.d-stat-card {
    flex: 1;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--surface-border);
    border-radius: 12px;
    padding: 1.5rem;
}

.d-stat-card h3 {
    font-size: 1.6rem;
    margin-bottom: 0.2rem;
    font-weight: 700;
}

.d-stat-card p {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.d-chart {
    height: 120px;
    border: 1px solid var(--surface-border);
    border-radius: 12px;
    position: relative;
    overflow: hidden;
}

/* FAQ Section */
.faq {
    margin-top: 10rem;
    margin-bottom: 5rem;
    text-align: center;
}

.faq h2 {
    font-size: 1.5rem;
    font-weight: 600;
}

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

@media (max-width: 900px) {
    .mockup-section {
        width: 900px;
        max-width: 900px;
        transform: scale(0.85);
        transform-origin: top center;
        height: 425px;
    }
}

@media (max-width: 768px) {
    .navbar {
        flex-direction: row;
        justify-content: center;
        padding: 0.8rem 1.2rem;
        border-radius: 16px;
        margin: 1rem;
    }
    
    .nav-links, .user-greeting, .logout {
        display: none;
    }
    
    .nav-brand {
        font-size: 1.1rem;
    }

    .btn-dashboard {
        padding: 0.5rem 1rem;
        font-size: 0.8rem;
    }
    
    .hero-title {
        font-size: 1.8rem;
    }
    
    .hero-subtitle {
        font-size: 0.95rem;
        padding: 0 1rem;
    }

    .mockup-section {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-title {
        font-size: 1.5rem;
    }
}

@keyframes fadeIn {
    0% {
        opacity: 0;
    }
    100% {
        opacity: 1;
    }
}