:root {
    --bg-base: #07090e;
    --bg-surface: #0c1017;
    --bg-card: rgba(14, 18, 26, 0.7);
    --bg-card-hover: rgba(20, 27, 39, 0.85);
    --border-subtle: rgba(255, 255, 255, 0.07);
    --border-hover: rgba(16, 185, 129, 0.35);
    --border-active: #10b981;

    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --green-accent: #10b981;
    --green-bright: #34d399;
    --green-glow: rgba(16, 185, 129, 0.35);
    --green-surface: rgba(16, 185, 129, 0.08);

    --font-heading: 'Sora', 'Plus Jakarta Sans', sans-serif;
    --font-body: 'Plus Jakarta Sans', sans-serif;
    --font-mono: 'Space Grotesk', monospace;

    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-full: 9999px;

    --ease-smooth: cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

body {
    font-family: var(--font-body);
    background-color: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
}

.tactical-bg-layer {
    position: fixed;
    inset: 0;
    background-image: 
        linear-gradient(to right, rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 36px 36px;
    mask-image: radial-gradient(ellipse at 50% 25%, #000 40%, transparent 85%);
    -webkit-mask-image: radial-gradient(ellipse at 50% 25%, #000 40%, transparent 85%);
    pointer-events: none;
    z-index: 0;
}

.ambient-green-glow {
    position: fixed;
    top: -120px;
    left: 50%;
    transform: translateX(-50%);
    width: 720px;
    height: 480px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.15) 0%, rgba(6, 78, 59, 0.08) 45%, transparent 70%);
    filter: blur(90px);
    pointer-events: none;
    z-index: 0;
}

.main-container {
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 100%;
    max-width: 980px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 6rem;
    gap: 4.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.7rem 1.5rem;
    border-radius: var(--radius-sm);
    font-family: var(--font-body);
    font-size: 0.92rem;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.25s var(--ease-smooth);
    outline: none;
}

.btn-primary {
    background: var(--green-accent);
    color: #042416;
    box-shadow: 0 4px 20px rgba(16, 185, 129, 0.35);
}

.btn-primary:hover {
    background: var(--green-bright);
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(16, 185, 129, 0.55);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border: 1px solid var(--border-subtle);
    backdrop-filter: blur(8px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.18);
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .main-container {
        padding: 1.5rem 1.25rem 4rem;
        gap: 3rem;
    }
}