:root {
    --bg-black: #000000;
    --text-white: #ffffff;
    --text-zinc: #a1a1aa;
    --border-color: rgba(255, 255, 255, 0.08);
}

/* Base Resets */
body {
    background-color: var(--bg-black);
    color: var(--text-white);
    font-family: 'Inter', sans-serif;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Background Effects */
.background-grid {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to right, rgba(255, 255, 255, 0.03) 1px, transparent 1px),
                      linear-gradient(to bottom, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(circle at 50% 0%, black 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(circle at 50% 0%, black 40%, transparent 100%);
    z-index: -2;
    pointer-events: none;
}

.aurora-glow {
    position: fixed;
    top: -30%;
    left: 50%;
    transform: translateX(-50%);
    width: 140vw;
    height: 80vh;
    background: radial-gradient(circle at 50% 0%, rgba(255, 255, 255, 0.08) 0%, transparent 60%);
    filter: blur(80px);
    z-index: -1;
    pointer-events: none;
    opacity: 0.8;
}

/* Buttons */
.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: #ffffff;
    color: #000000;
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 0.625rem 1.25rem;
    border-radius: 6px; /* Slightly squarer for that "pro" tech look */
    transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
    border: 1px solid #ffffff;
}

.btn-primary:hover {
    background-color: #e5e5e5;
    border-color: #e5e5e5;
    transform: translateY(-1px);
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background-color: transparent;
    color: #ffffff;
    font-weight: 500;
    font-size: 0.9375rem;
    padding: 0.625rem 1.25rem;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.15);
    transition: all 0.2s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.3);
}

/* Links */
.nav-link {
    position: relative;
    transition: color 0.2s;
}

.nav-link:hover {
    color: #ffffff;
}

.footer-link {
    color: var(--text-zinc);
    transition: color 0.2s;
    font-size: 0.875rem;
}

.footer-link:hover {
    color: #ffffff;
    text-decoration: underline;
    text-decoration-thickness: 1px;
    text-underline-offset: 4px;
}

/* Code Window */
.code-window {
    border: 1px solid var(--border-color);
    border-radius: 12px;
    overflow: hidden;
    background: #000000;
    box-shadow: 0 20px 60px -20px rgba(0, 0, 0, 1);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
}

.code-window:hover {
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: 0 30px 80px -20px rgba(255, 255, 255, 0.05);
}

/* Marquee Chips */
.model-chip {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 6px;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-zinc);
    white-space: nowrap;
    transition: all 0.3s ease;
}

.group:hover .model-chip {
    opacity: 0.5;
}

.model-chip:hover {
    opacity: 1 !important;
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    color: #ffffff;
    transform: scale(1.02);
}

/* Feature Cards */
.feature-card {
    background: rgba(255, 255, 255, 0.015);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
    transition: all 0.3s ease;
}

.feature-card:hover {
    background: rgba(255, 255, 255, 0.04);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
}

.icon-box {
    width: 40px;
    height: 40px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.25rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Animations */
@keyframes scroll {
    0% { transform: translateX(0); }
    100% { transform: translateX(-50%); }
}

.animate-scroll {
    display: flex;
    width: max-content;
    animation: scroll 40s linear infinite;
}

/* Scrollbar Utility */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: #000;
}
::-webkit-scrollbar-thumb {
    background: #333;
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: #555;
}