/**
 * VERITAS // Random Insight Engine Core Stylesheet
 * Layout Architecture: Text-Enriched Premium Dark Aesthetic
 */

:root {
    --bg-primary: #080a0f;
    --bg-surface: #10141d;
    --bg-card: #151a26;
    --border-color: #222938;
    --border-focus: #d4af37;
    --text-high-contrast: #ffffff;
    --text-normal: #e2e8f0;
    --text-muted: #8e9aa8;
    --accent-gold: #d4af37;
    --accent-gold-hover: #bda032;
    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    /* Editorial Serif chosen specifically for enhanced reading comfort of dense fact modules */
    --font-serif: "Georgia", "Cambria", "Times New Roman", serif;
}

body {
    background-color: var(--bg-primary);
    color: var(--text-normal);
    font-family: var(--font-sans);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    line-height: 1.6;
}

.app-container {
    max-width: 760px;
    margin: 0 auto;
    padding: 60px 20px;
    box-sizing: border-box;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.app-header {
    text-align: center;
    margin-bottom: 50px;
}

.app-header h1 {
    color: var(--text-high-contrast);
    font-size: 1.5rem;
    font-weight: 500;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    margin: 0 0 10px 0;
}

.app-header h1 span {
    color: var(--accent-gold);
}

/* Master Presentation Card Framework with Editorial Content Layout */
.insight-display-card {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 50px 40px;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6);
    text-align: center;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 30px;
}

/* Elegant "Did You Know?" GUI Context Badge Overlay */
.curiosity-badge {
    background-color: rgba(214, 175, 55, 0.08);
    border: 1px solid var(--accent-gold);
    color: var(--accent-gold);
    padding: 6px 18px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    border-radius: 50px;
    display: inline-block;
}

/* High-Contrast Readability Target Frame Content Container */
.fact-content-frame {
    width: 100%;
    min-height: 140px; /* Reserves layout canvas vertical margins during transit transitions */
    display: flex;
    align-items: center;
    justify-content: center;
}

.fact-text-output {
    font-family: var(--font-serif);
    color: var(--text-high-contrast);
    font-size: 1.85rem;
    line-height: 1.55;
    margin: 0;
    font-weight: 400;
    opacity: 1;
    transition: opacity 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    word-break: break-word;
}

/* Managed Transition State Classes */
.fact-text-output.state-loading {
    opacity: 0;
}

.card-divider {
    width: 60px;
    height: 1px;
    background-color: var(--border-color);
    margin: 10px 0;
}

/* Action Trigger Component Layout Structure */
.action-trigger-button {
    background-color: transparent;
    color: var(--text-high-contrast);
    border: 1px solid var(--accent-gold);
    border-radius: 8px;
    padding: 14px 32px;
    font-size: 0.9rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: background-color 0.25s, color 0.25s, transform 0.15s;
}

.action-trigger-button:hover {
    background-color: var(--accent-gold);
    color: #000000;
}

.action-trigger-button:active {
    transform: scale(0.98);
}

.action-trigger-button:disabled {
    border-color: var(--border-color);
    color: var(--text-muted);
    cursor: not-allowed;
    background-color: transparent;
}

/* Asynchronous Layout Spinner Overlay Component */
.loading-indicator-ring {
    display: none;
    width: 32px;
    height: 32px;
    border: 2px solid rgba(214, 175, 55, 0.1);
    border-radius: 50%;
    border-top-color: var(--accent-gold);
    animation: spinTrackLoop 0.75s linear infinite;
    position: absolute;
}

@keyframes spinTrackLoop {
    to { transform: rotate(360deg); }
}

@media (max-width: 600px) {
    .insight-display-card {
        padding: 40px 24px;
    }
    .fact-text-output {
        font-size: 1.5rem;
    }
}