/**
 * NEXUS // Global Intelligence Gateway
 * Core Dark Luxury Stylesheet Layout Engine
 */

/* ==========================================================================
   1. CORE VARIABLES & SYSTEM RESET
   ========================================================================== */
:root {
    --bg-deep-obsidian: #05070b;
    --bg-card-panel: #0d111a;
    --border-premium: rgba(255, 255, 255, 0.06);
    --border-premium-hover: rgba(212, 163, 89, 0.3); /* Subtle Champagne Gold Accent Line */
    
    /* Luxury High-Contrast Dark Theme Typography Spec */
    --text-bright-white: #ffffff;
    --text-silver-gray: #94a3b8;
    --text-gold-accent: #d4a359;
    
    --transition-smooth: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

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

body {
    background-color: var(--bg-deep-obsidian);
    color: var(--text-silver-gray);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    min-height: 100vh;
    padding: 3rem 2rem;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   2. HEADER & REGION CONTROLLER DECK
   ========================================================================== */
.nexus-header {
    max-width: 1400px;
    margin: 0 auto 3rem auto;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    border-bottom: 1px solid var(--border-premium);
    padding-bottom: 2rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 0.5rem;
}

.pulse-dot {
    width: 6px;
    height: 6px;
    background-color: var(--text-gold-accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--text-gold-accent);
}

.status-label {
    font-size: 0.65rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-gold-accent);
}

.portal-title {
    color: var(--text-bright-white);
    font-size: 2.25rem;
    font-weight: 900;
    letter-spacing: -0.03em;
}

.portal-subtitle {
    font-size: 0.9rem;
    color: var(--text-silver-gray);
    margin-top: 0.25rem;
}

.app-like-trigger {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--bg-card-panel);
    border: 1px solid var(--border-premium);
    border-radius: 20px;
    padding: 2px 10px;
    font-weight: 600;
    font-size: 0.75rem;
    color: var(--text-silver-gray);
    cursor: pointer;
    margin-top: 12px;
    transition: var(--transition-smooth);
}

.app-like-trigger:hover:not(:disabled) {
    color: #c9604c;
    border-color: #c9604c;
    background: var(--border-premium-hover);
    transform: scale(1.05);
}

.app-like-trigger.liked {
    color: var(--text-gold-accent);
    border-color: var(--text-gold-accent);
    background: var(--border-premium-hover);
    cursor: not-allowed;
}

.app-like-trigger:disabled:not(.liked) {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Horizontal Segmented luxury Scroll Navigation Component */
.region-control-deck {
    width: 100%;
    overflow: hidden;
}

.scroll-container {
    display: flex;
    gap: 0.5rem;
    overflow-x: auto;
    padding-bottom: 0.5rem;
    scrollbar-width: none; /* Hide scrollbar Firefox */
}

.scroll-container::-webkit-scrollbar {
    display: none; /* Hide scrollbar Chrome/Safari */
}

.region-tab {
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-premium);
    color: var(--text-silver-gray);
    padding: 0.6rem 1.2rem;
    font-size: 0.8rem;
    font-weight: 600;
    border-radius: 4px;
    cursor: pointer;
    white-space: nowrap;
    transition: var(--transition-smooth);
}

.region-tab:hover {
    background-color: rgba(255, 255, 255, 0.05);
    color: var(--text-bright-white);
    border-color: rgba(255, 255, 255, 0.15);
}

.region-tab.active {
    background-color: rgba(212, 163, 89, 0.08);
    border-color: var(--text-gold-accent);
    color: var(--text-bright-white);
    box-shadow: 0 0 15px rgba(212, 163, 89, 0.05);
}

/* ==========================================================================
   3. RESPONSIVE 3-COLUMN INTEL GRID PLATFORM
   ========================================================================== */
.workspace-stage {
    max-width: 1400px;
    margin: 0 auto;
}

.nexus-grid-container {
    display: grid;
    grid-template-columns: repeat(1, 1fr);
    gap: 1.75rem;
    width: 100%;
}

/* Medium viewport breakpoint */
@media (min-width: 768px) {
    .nexus-grid-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Desktop Dashboard Grid Structure Fix (Strict 3 Columns) */
@media (min-width: 1150px) {
    .nexus-grid-container {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ==========================================================================
   4. LUXURY INTELLIGENCE RECORD CARD LAYOUT
   ========================================================================== */
.intel-card {
    background-color: var(--bg-card-panel);
    border: 1px solid var(--border-premium);
    border-radius: 8px;
    padding: 1.75rem;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    min-height: 320px;
    transition: var(--transition-smooth);
}

.intel-card:hover {
    transform: translateY(-4px);
    border-color: var(--border-premium-hover);
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), 0 0 25px rgba(212, 163, 89, 0.03);
}

.card-upper-block {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Card Header Metadata Row */
.card-meta-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.source-tag {
    color: var(--text-gold-accent);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.region-badge {
    background-color: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-premium);
    color: var(--text-bright-white);
    font-size: 0.65rem;
    font-weight: 600;
    padding: 0.2rem 0.5rem;
    border-radius: 3px;
    text-transform: uppercase;
}

/* Large Brightened Readability Title Fix */
.intel-title {
    color: var(--text-bright-white);
    font-size: 1.35rem; /* Enhanced size over dark background */
    font-weight: 700;
    line-height: 1.35;
    letter-spacing: -0.01em;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.intel-description {
    font-size: 0.875rem;
    color: #cbd5e1; /* Slightly lighter shade for optimized readability */
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 4;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

/* Card Interaction Footer Frame */
.card-footer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 2rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
}

.timestamp-label {
    font-size: 0.725rem;
    font-weight: 500;
    color: #64748b;
}

.action-link-vector {
    color: var(--text-silver-gray);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-premium);
    transition: var(--transition-smooth);
    text-decoration: none;
}

.action-link-vector:hover {
    color: var(--text-bright-white);
    background-color: rgba(212, 163, 89, 0.1);
    border-color: var(--text-gold-accent);
}

/* ==========================================================================
   5. INTERFACE RUNTIME EXCEPTIONS & LOAD STATES
   ========================================================================== */
.fallback-frame {
    grid-column: 1 / -1;
    text-align: center;
    padding: 6rem 2rem;
    border: 1px dashed var(--border-premium);
    border-radius: 8px;
    background-color: rgba(13, 17, 26, 0.5);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
}

.fallback-frame p {
    font-size: 0.9rem;
    color: var(--text-silver-gray);
}

.spinner {
    width: 24px;
    height: 24px;
    border: 2px solid rgba(212, 163, 89, 0.1);
    border-top-color: var(--text-gold-accent);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

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