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

:root {
    --primary-color: #1a73e8; /* Electric blue */
    --primary-hover: #4dabf7;
    --secondary-color: #081020;
    --tertiary-color: #0f1a30;
    --accent-color: #8fa3c7;
    --text-heading: #f5f8ff;
    --text-body: #c3cde4;
    --text-muted: #7d8aac;
    --glass-border: rgba(154, 189, 255, 0.12);
    --shadow: 0 24px 60px rgba(8, 19, 45, 0.55);
    --shadow-hover: 0 32px 90px rgba(17, 52, 112, 0.6);
    --gradient-hero: linear-gradient(150deg, #061023 0%, #071733 45%, #0b254a 100%);
    --gradient-panel: linear-gradient(160deg, rgba(38, 78, 150, 0.18) 0%, rgba(12, 24, 46, 0.65) 100%);
}

body {
    font-family: 'Montserrat', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    line-height: 1.6;
    color: var(--text-body);
    background: var(--secondary-color);
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    background-color: rgb(20, 20, 20);
    background-image: none;
    backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 1000;
}

.navbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 20px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-heading);
}

.logo {
    width: 40px;
    height: 40px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
    align-items: center;
}

.nav-menu a {
    text-decoration: none;
    color: var(--text-body);
    font-weight: 500;
    letter-spacing: 0.02em;
    transition: color 0.3s;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--text-heading);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.hamburger span {
    width: 25px;
    height: 3px;
    background: var(--text-heading);
    border-radius: 3px;
    transition: 0.3s;
}

/* Hero Section */
.hero {
    padding: 140px 0 120px;
    background: var(--gradient-hero);
    color: var(--text-heading);
}

.hero .container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
}

.hero-title {
    font-size: clamp(2.8rem, 5vw, 3.5rem);
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 1.5rem;
}

.gradient-text {
    background: linear-gradient(135deg, #ffffff 0%, #5fa4ff 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: 2.5rem;
    max-width: 560px;
    color: var(--text-body);
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 2.5rem;
}

.hero-ai-strip {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding: 18px 22px;
    border-radius: 14px;
    background: rgba(53, 114, 220, 0.12);
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
    max-width: 520px;
}

.strip-label {
    font-size: 0.8rem;
    letter-spacing: 0.22em;
    text-transform: uppercase;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
}

.ai-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ai-chip {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    border-radius: 999px;
    background: rgba(61, 123, 228, 0.18);
    color: var(--text-heading);
    font-size: 0.85rem;
}

.browser-screenshot {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-large {
    padding: 16px 32px;
    font-size: 1.1rem;
}

.btn-primary {
    background: var(--primary-color);
    color: #fff;
    box-shadow: 0 12px 40px rgba(26, 115, 232, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    background: var(--primary-hover);
    box-shadow: 0 16px 44px rgba(77, 171, 247, 0.45);
}

.btn-secondary {
    background: transparent;
    color: var(--text-heading);
    border: 1px solid rgba(111, 164, 255, 0.35);
}

.btn-secondary:hover {
    background: rgba(61, 123, 228, 0.2);
    color: var(--text-heading);
}

.btn-nav {
    background: transparent;
    border: 1px solid rgba(111, 164, 255, 0.25);
    color: var(--text-heading);
    padding: 10px 18px;
    border-radius: 999px;
    font-size: 0.8rem;
    letter-spacing: 0.18em;
    text-transform: uppercase;
}

.btn-nav:hover {
    border-color: rgba(111, 164, 255, 0.55);
    color: #fff;
}

/* Sections */
section {
    padding: 80px 0;
    background: var(--secondary-color);
}

.section-title {
    font-size: clamp(2rem, 4vw, 2.6rem);
    font-weight: 600;
    text-align: center;
    margin-bottom: 1rem;
    color: var(--text-heading);
}

.section-subtitle {
    text-align: center;
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 3rem;
}

/* AI Intelligence Section */
.ai-intelligence {
    padding: 120px 0 100px;
    background: var(--tertiary-color);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.ai-intro {
    max-width: 760px;
    margin: 0 auto 60px;
    text-align: center;
}

.ai-intro h2 {
    font-size: clamp(2.2rem, 4vw, 2.8rem);
    color: var(--text-heading);
    margin-bottom: 1rem;
}

.ai-intro p {
    color: var(--text-body);
    font-size: 1.1rem;
    line-height: 1.8;
}

.ai-panels {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 24px;
}

.ai-panel {
    background: var(--gradient-panel);
    padding: 32px;
    border-radius: 18px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
    display: flex;
    flex-direction: column;
    gap: 16px;
    transition: transform 0.35s ease, box-shadow 0.35s ease;
}

.ai-panel i {
    font-size: 1.8rem;
    color: var(--primary-color);
}

.ai-panel h3 {
    color: var(--text-heading);
    font-size: 1.3rem;
}

.ai-panel p {
    color: var(--text-body);
    line-height: 1.7;
}

.ai-panel:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-hover);
}

/* Features Section */
.features {
    background: var(--secondary-color);
}

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

.feature-card {
    background: var(--tertiary-color);
    padding: 2rem;
    border-radius: 18px;
    border: 1px solid var(--glass-border);
    box-shadow: var(--shadow);
    transition: transform 0.3s, box-shadow 0.3s;
}

.feature-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.feature-icon {
    font-size: 2rem;
    margin-bottom: 1.2rem;
    color: var(--primary-color);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
    color: var(--text-heading);
}

.feature-card p {
    color: var(--text-body);
    line-height: 1.8;
}

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

.screenshot-item {
    text-align: center;
}

.screenshot-item img {
    width: 100%;
    border-radius: 12px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.04);
    margin-bottom: 1rem;
}

.screenshot-item p {
    color: var(--text-muted);
    font-weight: 500;
}

/* Download Section */
.download {
    background: var(--tertiary-color);
}

.download-card {
    background: rgba(255, 255, 255, 0.02);
    border-radius: 22px;
    padding: 3rem;
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
    align-items: center;
    max-width: 900px;
    margin: 0 auto 2rem;
}

.download-info h3 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
    color: var(--text-heading);
}

.download-info p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.download-features {
    list-style: none;
    display: grid;
    gap: 0.4rem;
}

.download-features li {
    padding: 0.4rem 0;
    color: var(--text-body);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 12px;
}

.download-actions {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.download-note {
    text-align: center;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.download-note a {
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
}

/* Docs Section */
.docs-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
}

.doc-card {
    background: var(--tertiary-color);
    padding: 2rem;
    border-radius: 18px;
    box-shadow: var(--shadow);
    border: 1px solid var(--glass-border);
    text-decoration: none;
    color: var(--text-heading);
    transition: transform 0.3s, box-shadow 0.3s;
}

.doc-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
}

.doc-icon {
    font-size: 2rem;
    margin-bottom: 1.2rem;
    color: var(--primary-color);
}

.doc-card p {
    color: var(--text-body);
}
.doc-card h3 {
    font-size: 1.3rem;
    margin-bottom: 0.5rem;
    color: var(--text-heading);
}

/* Open Source Section */
.opensource {
    background: linear-gradient(160deg, #101012 0%, #16171b 100%);
    color: white;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.opensource h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.opensource p {
    font-size: 1.2rem;
    margin-bottom: 2rem;
    opacity: 0.95;
}

.opensource-stats {
    display: flex;
    justify-content: center;
    gap: 4rem;
    margin: 3rem 0;
}

.stat {
    text-align: center;
}

.stat-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 1.1rem;
    opacity: 0.9;
}

/* Footer */
.footer {
    background: #0a0a0c;
    color: white;
    padding: 60px 0 30px;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: 4rem;
    margin-bottom: 3rem;
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.footer-logo {
    width: 50px;
    height: 50px;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
}

.footer-column h4 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
}

.footer-column ul {
    list-style: none;
}

.footer-column li {
    margin-bottom: 0.5rem;
}

.footer-column a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-column a:hover {
    color: white;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    color: rgba(255, 255, 255, 0.6);
}

.footer-bottom p {
    margin: 0.5rem 0;
}

/* Responsive Design */
@media (max-width: 768px) {
    .nav-menu {
        position: absolute;
        top: 70px;
        right: 20px;
        flex-direction: column;
        gap: 1.2rem;
        padding: 22px 26px;
        background: rgba(12, 12, 14, 0.95);
        border: 1px solid var(--glass-border);
        border-radius: 14px;
        display: none;
        box-shadow: var(--shadow);
    }

    .nav-menu.active {
        display: flex;
    }

    .hamburger {
        display: flex;
    }

    .hero .container {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .hero-subtitle {
        margin: 0 auto 2.2rem;
    }

    .hero-buttons {
        flex-direction: column;
        align-items: center;
    }

    .hero-ai-strip {
        margin: 0 auto;
    }

    .browser-screenshot {
        margin-top: 40px;
    }

    .ai-panels {
        grid-template-columns: 1fr;
    }

    .download-card {
        grid-template-columns: 1fr;
        text-align: center;
    }

    .download-features {
        justify-items: center;
    }

    .download-features li {
        justify-content: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .footer-links {
        grid-template-columns: repeat(2, 1fr);
    }

    .opensource-stats {
        flex-direction: column;
        gap: 2rem;
    }
}

/* Animations */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.hero-content,
.hero-image {
    animation: fadeIn 0.8s ease-out;
}