:root {
    --bg-color: #0b0f19;
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --primary: #4f46e5;
    --primary-hover: #6366f1;
    --secondary: #10b981;
    --accent: #f43f5e;
    --glass-bg: rgba(30, 41, 59, 0.4);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

h1, h2, h3, .logo-text, .badge {
    font-family: 'Outfit', sans-serif;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

/* Background Decorators */
.bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(100px);
    z-index: -1;
    opacity: 0.5;
    animation: floatBg 20s ease-in-out infinite alternate;
}

.bg-shape-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(79,70,229,0.3) 0%, rgba(11,15,25,0) 70%);
}

.bg-shape-2 {
    bottom: 20%;
    right: -5%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(16,185,129,0.2) 0%, rgba(11,15,25,0) 70%);
    animation-delay: -5s;
}

@keyframes floatBg {
    0% { transform: translate(0, 0) scale(1); }
    100% { transform: translate(50px, 50px) scale(1.1); }
}

/* Glassmorphism utility */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 100;
    transition: background 0.3s;
}

.navbar.scrolled {
    background: rgba(11, 15, 25, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.8rem;
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
}

.logo-img {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.2);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
    font-weight: 500;
    font-size: 0.95rem;
}

.nav-links a:not(.btn-nav):hover {
    color: var(--primary);
}

.btn-nav {
    background: var(--primary);
    padding: 0.6rem 1.2rem;
    border-radius: 12px;
    font-weight: 600;
}

.btn-nav:hover {
    background: var(--primary-hover);
    transform: translateY(-2px);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 6rem 5% 2rem;
    gap: 4rem;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    flex: 1;
}

.badge {
    display: inline-block;
    padding: 0.4rem 1rem;
    background: rgba(79, 70, 229, 0.15);
    color: #818cf8;
    border: 1px solid rgba(79, 70, 229, 0.3);
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

h1 {
    font-size: clamp(3rem, 5vw, 5rem);
    line-height: 1.1;
    font-weight: 800;
    margin-bottom: 1.5rem;
}

.highlight {
    background: linear-gradient(135deg, #818cf8 0%, #34d399 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-content p {
    font-size: 1.15rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
    max-width: 500px;
}

.btn-primary {
    display: inline-flex;
    align-items: center;
    gap: 0.8rem;
    background: linear-gradient(135deg, var(--primary) 0%, #3b82f6 100%);
    color: white;
    padding: 1rem 2rem;
    border-radius: 16px;
    font-size: 1.1rem;
    font-weight: 600;
    box-shadow: 0 10px 25px rgba(79, 70, 229, 0.4);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary:hover {
    transform: translateY(-4px) scale(1.02);
    box-shadow: 0 15px 35px rgba(79, 70, 229, 0.6);
}

.version-info {
    font-size: 0.85rem !important;
    margin-top: 0.8rem;
    margin-bottom: 0 !important;
}

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

.mockup-card {
    width: 320px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    transform: rotate(-2deg);
    animation: floatMockup 6s ease-in-out infinite;
}

@keyframes floatMockup {
    0%, 100% { transform: translateY(0) rotate(-2deg); }
    50% { transform: translateY(-15px) rotate(-1deg); }
}

.mockup-header {
    display: flex;
    gap: 6px;
}

.mockup-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.mockup-dot.red { background: #ff5f56; }
.mockup-dot.yellow { background: #ffbd2e; }
.mockup-dot.green { background: #27c93f; }

.chat-bubble {
    padding: 1rem;
    border-radius: 16px;
    font-size: 0.95rem;
    position: relative;
    opacity: 0;
    animation: slideUpFade 0.6s ease forwards;
}

.chat-bubble.left {
    background: rgba(255, 255, 255, 0.05);
    border-bottom-left-radius: 4px;
    align-self: flex-start;
    margin-right: 20%;
    animation-delay: 0.5s;
}

.chat-bubble.right {
    background: var(--primary);
    border-bottom-right-radius: 4px;
    align-self: flex-end;
    margin-left: 20%;
    animation-delay: 1.5s;
}

.chat-bubble.left:last-child {
    animation-delay: 2.5s;
}

@keyframes slideUpFade {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.float-item {
    position: absolute;
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    padding: 0.8rem 1.2rem;
    border-radius: 20px;
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 10px 30px rgba(0,0,0,0.2);
}

.float-1 {
    top: -20px;
    right: -20px;
    animation: floatFast 4s ease-in-out infinite;
}

.float-2 {
    bottom: -10px;
    left: -40px;
    animation: floatFast 5s ease-in-out infinite reverse;
}

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

/* Features */
.features {
    padding: 5rem 5%;
    max-width: 1400px;
    margin: 0 auto;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 4rem;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    padding: 2.5rem;
    transition: transform 0.3s;
}

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

.feature-icon {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    background: rgba(255,255,255,0.05);
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 16px;
}

.feature-card h3 {
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: 2rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-top: 4rem;
}

.footer-links {
    display: flex;
    gap: 1.5rem;
}

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

/* Responsive */
@media (max-width: 900px) {
    .hero {
        flex-direction: column;
        text-align: center;
        padding-top: 8rem;
    }
    .hero-content p {
        margin: 0 auto 2.5rem;
    }
    .hero-visual {
        margin-top: 3rem;
    }
    .float-item {
        display: none;
    }
}

@media (max-width: 600px) {
    .nav-links a:not(.btn-nav) {
        display: none;
    }
    h1 {
        font-size: 2.5rem;
    }
    footer {
        flex-direction: column;
        gap: 1rem;
        text-align: center;
    }
}