:root {
    --bg-color: #0b0f19;
    --card-bg: rgba(255, 255, 255, 0.03);
    --card-border: rgba(255, 255, 255, 0.08);
    --text-primary: #f3f4f6;
    --text-secondary: #9ca3af;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.4);
    --yellow-note: #FFF9A6;
    --pink-note: #FFC5D9;
    --font-heading: 'Space Grotesk', sans-serif;
    --font-body: 'Outfit', sans-serif;
}

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

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

/* Header & Nav */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 6%;
    border-bottom: 1px solid var(--card-border);
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(11, 15, 25, 0.8);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 24px;
}

.logo-text {
    font-family: var(--font-heading);
    font-weight: 700;
    font-size: 20px;
    background: linear-gradient(135deg, #fff, #9ca3af);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    align-items: center;
    gap: 30px;
}

.nav a {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.2s ease;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.2s ease;
    cursor: pointer;
}

.btn-primary {
    background-color: var(--accent);
    color: #fff;
    box-shadow: 0 0 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 0 30px var(--accent-glow);
}

.btn-secondary {
    background-color: var(--card-bg);
    color: var(--text-primary);
    border: 1px solid var(--card-border);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
}

.btn-outline {
    border: 1px solid var(--card-border);
    color: var(--text-primary);
}

.btn-outline:hover {
    background-color: var(--card-bg);
}

/* Hero Section */
.hero {
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    min-height: 80vh;
    padding: 40px 6%;
    gap: 60px;
    max-width: 1400px;
    margin: 0 auto;
}

.hero-content {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
}

.badge {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--accent);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

.hero h1 {
    font-family: var(--font-heading);
    font-size: 54px;
    font-weight: 800;
    line-height: 1.1;
}

.gradient-text {
    background: linear-gradient(135deg, #60a5fa, #3b82f6);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtext {
    color: var(--text-secondary);
    font-size: 18px;
}

.hero-ctas {
    display: flex;
    gap: 16px;
}

/* Hero Visual & Simulated Macbook Desktop */
.hero-visual {
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.macbook-frame {
    width: 100%;
    aspect-ratio: 16/10;
    background: radial-gradient(circle at center, #1e293b, #0f172a);
    border-radius: 12px;
    border: 8px solid #334155;
    position: relative;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

/* Sticky Note CSS Mockups */
.sticky-note-preview {
    position: absolute;
    width: 160px;
    border-radius: 8px;
    box-shadow: 0 10px 20px rgba(0,0,0,0.3);
    padding: 10px;
    color: #1f2937;
    animation: float 4s ease-in-out infinite;
}

.yellow-note {
    background-color: var(--yellow-note);
    top: 20%;
    left: 15%;
    animation-delay: 0s;
}

.pink-note {
    background-color: var(--pink-note);
    bottom: 20%;
    right: 15%;
    animation-delay: 2s;
}

.note-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
    border-bottom: 1px solid rgba(0,0,0,0.06);
    padding-bottom: 4px;
}

.note-dots {
    width: 6px;
    height: 6px;
    background-color: rgba(0,0,0,0.2);
    border-radius: 50px;
}

.note-title {
    font-size: 10px;
    font-weight: 700;
}

.note-actions {
    font-size: 10px;
}

.note-body {
    font-size: 10px;
}

.note-body ul {
    list-style: none;
    margin-top: 4px;
}

.note-body pre {
    background-color: rgba(0,0,0,0.05);
    padding: 4px;
    border-radius: 4px;
    font-family: monospace;
}

.quarantine-box {
    margin-top: 20px;
    background-color: rgba(234, 179, 8, 0.04);
    border: 1px solid rgba(234, 179, 8, 0.15);
    padding: 16px;
    border-radius: 10px;
    max-width: 480px;
}

.quarantine-header {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 8px;
    font-size: 13px;
    color: #eab308;
}

.quarantine-desc {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.code-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    background-color: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 8px 12px;
    font-family: monospace;
    font-size: 11px;
}

.code-container code {
    color: #60a5fa;
    user-select: all;
}

.copy-btn {
    background-color: var(--accent);
    color: white;
    border: none;
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
}

.copy-btn:hover {
    background-color: #2563eb;
}

.copy-btn.copied {
    background-color: #10b981;
}

/* Features Grid */
.features {
    padding: 80px 6%;
    max-width: 1400px;
    margin: 0 auto;
    border-top: 1px solid var(--card-border);
}

.section-title {
    font-family: var(--font-heading);
    text-align: center;
    font-size: 36px;
    margin-bottom: 48px;
    font-weight: 700;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.feature-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 30px;
    border-radius: 12px;
    transition: all 0.3s ease;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 130, 246, 0.3);
    box-shadow: 0 10px 30px rgba(59, 130, 246, 0.05);
}

.feature-icon {
    font-size: 32px;
    display: block;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-family: var(--font-heading);
    margin-bottom: 12px;
    font-size: 20px;
}

.feature-card p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Demo Simulator Section */
.demo-section {
    padding: 80px 6%;
    background-color: rgba(255, 255, 255, 0.01);
    border-top: 1px solid var(--card-border);
}

.demo-subtext {
    text-align: center;
    color: var(--text-secondary);
    margin-top: -30px;
    margin-bottom: 50px;
}

.simulator-container {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 40px;
    max-width: 1000px;
    margin: 0 auto;
    align-items: center;
}

.keyboard {
    background-color: #1e293b;
    border-radius: 16px;
    padding: 24px;
    border: 1px solid var(--card-border);
    box-shadow: 0 20px 40px rgba(0,0,0,0.4);
}

.keyboard-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
}

.key {
    background-color: #334155;
    color: var(--text-primary);
    border: none;
    padding: 14px 18px;
    border-radius: 8px;
    font-family: var(--font-heading);
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 0 #1e293b;
    transition: all 0.1s ease;
}

.key:active, .key.active {
    transform: translateY(3px);
    box-shadow: 0 1px 0 #1e293b;
    background-color: var(--accent);
}

.key.modifier {
    background-color: #475569;
}

.screen-preview {
    background-color: #0f172a;
    aspect-ratio: 16/11;
    border-radius: 12px;
    border: 2px solid #334155;
    position: relative;
    overflow: hidden;
}

.screen-header {
    background-color: #1e293b;
    padding: 8px 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.screen-dot {
    width: 8px;
    height: 8px;
    border-radius: 50px;
}

.screen-dot.red { background-color: #ef4444; }
.screen-dot.yellow { background-color: #eab308; }
.screen-dot.green { background-color: #22c55e; }

.screen-title {
    font-size: 10px;
    color: var(--text-secondary);
    margin-left: 10px;
}

.screen-body {
    padding: 20px;
    height: calc(100% - 30px);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
}

.placeholder-text {
    color: var(--text-secondary);
    font-size: 12px;
    text-align: center;
}

/* Footer */
.footer {
    border-top: 1px solid var(--card-border);
    padding: 40px 6%;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.footer p {
    margin-bottom: 8px;
}

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

/* Responsive styles */
@media(max-width: 768px) {
    .hero {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    .hero-content {
        align-items: center;
    }
    .simulator-container {
        grid-template-columns: 1fr;
    }
    .header {
        flex-direction: column;
        gap: 16px;
    }
}