:root {
    --bg-color: #0d1117;
    --text-color: #e6edf3;
    --accent-color: #58a6ff;
    --accent-glow: rgba(88, 166, 255, 0.4);
    --glass-bg: rgba(22, 27, 34, 0.7);
    --glass-border: rgba(255, 255, 255, 0.1);
    --card-bg: #161b22;
    --footer-bg: #010409;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
}

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

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

/* Navbar */
nav {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    backdrop-filter: blur(10px);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo img {
    width: 36px;
    height: 36px;
    border-radius: 8px;
}

.logo span {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(90deg, #58a6ff, #bc8cff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    letter-spacing: -1px;
}

.nav-links a {
    color: var(--text-color);
    text-decoration: none;
    font-weight: 500;
    margin-left: 2rem;
    opacity: 0.8;
    transition: opacity 0.2s;
}

.nav-links a:hover {
    opacity: 1;
}

/* Hero Section */
.hero {
    padding: 8rem 0 4rem;
    text-align: center;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -100px;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    z-index: -1;
    opacity: 0.5;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h1 {
    font-size: 4rem;
    font-weight: 800;
    margin-bottom: 1.5rem;
    letter-spacing: -2px;
    line-height: 1.1;
    animation: fadeIn 0.8s ease-out forwards;
}

.tagline {
    font-size: 1.25rem;
    opacity: 0;
    max-width: 600px;
    margin: 0 auto 3rem;
    animation: fadeIn 0.8s ease-out 0.2s forwards;
}

.shortcut-hint {
    margin-top: -1.5rem;
    margin-bottom: 3.5rem;
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.3s forwards;
}

.key {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-color);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    height: 38px;
}

.key.icon-only {
    padding: 0;
    width: 38px;
    justify-content: center;
}

.key-group {
    display: flex;
    gap: 0.25rem;
}

.key i {
    width: 16px;
    height: 16px;
    color: var(--accent-color);
}

/* Shortcut Details Grid */
.shortcut-details-section {
    padding: 6rem 0;
}

.shortcut-details-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-top: 2rem;
}

.shortcut-card {
    background: var(--card-bg);
    border: 1px solid var(--glass-border);
    padding: 2rem;
    border-radius: 16px;
    text-align: center;
    transition: all 0.3s ease;
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.shortcut-card:hover {
    transform: translateY(-5px);
    border-color: rgba(88, 166, 255, 0.3);
    background: rgba(255, 255, 255, 0.02);
}

.shortcut-card .key-icon {
    margin-bottom: 1.5rem;
    display: flex;
    justify-content: center;
}

.shortcut-card h4 {
    font-size: 1.1rem;
    margin-bottom: 0.75rem;
    color: var(--text-color);
}

.shortcut-card p {
    font-size: 0.9rem;
    color: var(--text-secondary);
    line-height: 1.5;
}

.cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-bottom: 5rem;
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.4s forwards;
}

.hero-shortcuts {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1rem;
    margin: 2rem auto 3rem;
    max-width: 800px;
    opacity: 0;
    animation: fadeIn 0.8s ease-out 0.3s forwards;
}

@media (min-width: 768px) {
    .hero-shortcuts {
        grid-template-columns: repeat(4, 1fr);
    }
}

.hero-key-tile {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 1.25rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    transition: all 0.2s ease;
}

.hero-key-tile:hover {
    transform: translateY(-3px);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(88, 166, 255, 0.3);
}

.hero-key-tile span {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.hero-key-tile .key-group {
    scale: 0.9;
}

.btn {
    padding: 0.8rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background-color: var(--accent-color);
    color: white;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px var(--accent-glow);
}

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

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Mockup Container */
.mockup-container {
    position: relative;
    z-index: 1;
    perspective: 1000px;
    opacity: 0;
    animation: fadeIn 1s ease-out 0.6s forwards;
}

.mockup {
    width: 100%;
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    box-shadow: 0 30px 60px rgba(0, 0, 0, 0.5);
    border: 1px solid var(--glass-border);
    transform: rotateX(2deg);
    transition: transform 0.5s ease;
}

.mockup:hover {
    transform: rotateX(0deg);
}

/* Features */
.features {
    padding: 6rem 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.feature-card {
    background: var(--card-bg);
    padding: 2.5rem;
    border-radius: 16px;
    border: 1px solid var(--glass-border);
    transition: transform 0.3s ease;
    opacity: 0;
    animation: fadeIn 0.8s ease-out forwards;
}

.feature-card:nth-child(1) {
    animation-delay: 0.8s;
}

.feature-card:nth-child(2) {
    animation-delay: 1.0s;
}

.feature-card:nth-child(3) {
    animation-delay: 1.2s;
}

.feature-card:hover {
    transform: translateY(-5px);
    border-color: rgba(88, 166, 255, 0.3);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: rgba(88, 166, 255, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    color: var(--accent-color);
}

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

.feature-card p {
    opacity: 0.7;
    font-size: 0.95rem;
}

/* Footer */
footer {
    background: var(--footer-bg);
    padding: 4rem 0;
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-content {
    opacity: 0.5;
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    h1 {
        font-size: 2.5rem;
    }

    .cta-group {
        flex-direction: column;
    }
}