/* 
  Design Psychology Implementation:
  - Dark mode reduces eye strain and implies premium/technical brand identity.
  - High contrast ratio (WCAG AAA) on typography for maximum readability.
  - Generous whitespace reduces cognitive load (miller's law).
*/

:root {
    --bg-color: #050505;
    --surface-color: #111111;
    --text-primary: #FFFFFF;
    --text-secondary: #A1A1AA;
    --accent: #3B82F6;
    /* Trust-building blue */
    --accent-hover: #2563EB;
    --border: #27272A;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 680px;
    /* Optimal reading width (60-80 characters per line) */
    width: 100%;
    padding: 2rem;
    z-index: 10;
    display: flex;
    flex-direction: column;
    gap: 3rem;
}

/* Typography Hierarchy */
.hero {
    text-align: left;
    animation: fadeUp 0.8s ease-out forwards;
}

.brand-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1.1;
    margin-bottom: 0.5rem;
}

.brand-title .accent {
    color: var(--text-secondary);
}

.brand-subtitle {
    font-size: 1.125rem;
    font-weight: 500;
    color: var(--accent);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* The Message Board (Focal Point) */
.message-board {
    background: var(--surface-color);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 2.5rem;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
    animation: fadeUp 1s ease-out 0.2s forwards;
    opacity: 0;
}

.message-content h2 {
    font-size: 1.75rem;
    font-weight: 700;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.message-content p {
    font-size: 1.05rem;
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

.message-content p:last-child {
    margin-bottom: 0;
}

/* Call to Action */
.cta-section {
    animation: fadeUp 1s ease-out 0.4s forwards;
    opacity: 0;
}

.primary-button {
    display: inline-block;
    background-color: var(--text-primary);
    color: var(--bg-color);
    font-weight: 600;
    padding: 0.875rem 2rem;
    border-radius: 8px;
    text-decoration: none;
    transition: transform 0.2s ease, background-color 0.2s ease;
}

.primary-button:hover {
    background-color: #E4E4E7;
    transform: translateY(-2px);
}

/* Ambient Deep Background (Aesthetic framing) */
.ambient-glow {
    position: absolute;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59, 130, 246, 0.05) 0%, rgba(0, 0, 0, 0) 70%);
    border-radius: 50%;
    z-index: 1;
    pointer-events: none;
}

.glow-1 {
    top: -300px;
    left: -300px;
}

.glow-2 {
    bottom: -300px;
    right: -300px;
}

/* Subtle load-in animations */
@keyframes fadeUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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