/* ═══════════════════════════════════════════════════════════════
   EPSTEIN LANGUAGE MODEL - DECLASSIFIED AESTHETIC
   ═══════════════════════════════════════════════════════════════ */

:root {
    --bg-primary: #0a0a0c;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a24;
    --text-primary: #e8e6e3;
    --text-secondary: #8b8b8b;
    --text-muted: #5a5a5a;
    --accent-red: #c41e3a;
    --accent-gold: #c9a227;
    --accent-blue: #2d5a8a;
    --border-color: #2a2a3a;
    --redacted-bg: #1a1a1a;
    --glow-red: rgba(196, 30, 58, 0.3);
    --glow-gold: rgba(201, 162, 39, 0.3);
}

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

body {
    font-family: 'Space Mono', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    overflow: hidden;
    height: 100vh;
}

/* ═══════════════════════════════════════════════════════════════
   LOADING SCREEN
   ═══════════════════════════════════════════════════════════════ */

#loading-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--bg-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

#loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
}

.loader {
    text-align: center;
}

.loader-text {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: 0.5em;
    margin-bottom: 1rem;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.loader-subtext {
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
    letter-spacing: 0.2em;
}

.loader-bar {
    width: 300px;
    height: 2px;
    background: var(--border-color);
    margin: 0 auto;
    overflow: hidden;
}

.loader-progress {
    width: 0%;
    height: 100%;
    background: linear-gradient(90deg, var(--accent-red), var(--accent-gold));
    animation: loading 2s ease-in-out forwards;
}

@keyframes loading {
    0% { width: 0%; }
    50% { width: 70%; }
    100% { width: 100%; }
}

/* ═══════════════════════════════════════════════════════════════
   NAVIGATION
   ═══════════════════════════════════════════════════════════════ */

#main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: rgba(10, 10, 12, 0.95);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    z-index: 1000;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 0.3em;
    color: var(--accent-gold);
}

.nav-links {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1.5rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.75rem;
    letter-spacing: 0.15em;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.nav-btn.active {
    background: var(--accent-red);
    border-color: var(--accent-red);
    color: white;
}

.nav-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-red);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.status-text {
    font-size: 0.7rem;
    letter-spacing: 0.2em;
    color: var(--accent-red);
}

.nav-social {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-left: 1rem;
}

.social-btn {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 4px;
}

.social-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
    background: rgba(201, 162, 39, 0.1);
    transform: translateY(-2px);
}

.social-btn svg {
    width: 18px;
    height: 18px;
}

/* ═══════════════════════════════════════════════════════════════
   VIEWS
   ═══════════════════════════════════════════════════════════════ */

.view {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: calc(100vh - 60px);
    overflow: hidden;
}

.view.active {
    display: flex;
}

/* ═══════════════════════════════════════════════════════════════
   MODEL VIEW - 2x2 GRID LAYOUT
   ═══════════════════════════════════════════════════════════════ */

#model-view {
    position: relative;
    overflow: hidden;
}

.interrogation-layout {
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    height: calc(100vh - 60px);
    width: 100%;
    gap: 0;
    border: 2px solid var(--border-color);
    box-sizing: border-box;
    overflow: hidden;
}

/* Top Left: 3D Model */
.model-panel {
    position: relative;
    background: radial-gradient(ellipse at center, #1a1a24 0%, #0a0a0c 100%);
    overflow: hidden;
    border-right: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
}

.model-panel canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
    object-fit: contain;
}

/* Top Right: Island Map */
.island-panel {
    position: relative;
    background: var(--bg-primary);
    overflow: hidden;
    border-bottom: 2px solid var(--border-color);
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
}

.island-panel canvas {
    display: block;
    width: 100% !important;
    height: 100% !important;
    object-fit: contain;
}

/* Bottom Left: Chat Panel */
.chat-panel {
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    border-right: 2px solid var(--border-color);
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
}

#chat-interface {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    min-height: 0;
}

/* Bottom Right: Documents Panel */
.documents-panel {
    background: var(--bg-secondary);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    padding: 1rem;
    width: 100%;
    height: 100%;
    min-width: 0;
    min-height: 0;
    box-sizing: border-box;
}

.documents-panel .documents-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border-color);
}

.documents-panel .documents-header h2 {
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
    margin: 0;
}

.documents-panel .search-box input {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.4rem 0.75rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    width: 200px;
    outline: none;
}

.documents-panel .search-box input:focus {
    border-color: var(--accent-gold);
}

.filter-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.4rem 0.75rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    cursor: pointer;
    outline: none;
    transition: all 0.3s ease;
}

.filter-btn:hover {
    border-color: var(--accent-gold);
    color: var(--accent-gold);
}

.filter-btn.active {
    background: var(--accent-gold);
    border-color: var(--accent-gold);
    color: var(--bg-primary);
    font-weight: 600;
}

.documents-panel #documents-list {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 0;
}

.documents-panel #documents-list::-webkit-scrollbar {
    width: 4px;
}

.documents-panel #documents-list::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

.documents-panel #documents-list::-webkit-scrollbar-thumb {
    background: var(--border-color);
}

.documents-panel .document-card {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.75rem;
    transition: all 0.3s ease;
    cursor: pointer;
    border-radius: 2px;
}

.documents-panel .document-card:hover {
    border-color: var(--accent-red);
    transform: translateX(2px);
}

.documents-panel .document-card .doc-title {
    font-size: 0.75rem;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
    font-weight: 600;
}

.documents-panel .document-card .doc-date {
    font-size: 0.65rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.documents-panel .document-card .doc-excerpt {
    font-size: 0.7rem;
    color: var(--text-secondary);
    line-height: 1.4;
    font-family: 'Crimson Pro', serif;
    margin-bottom: 0.5rem;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.documents-panel .document-card .doc-tags {
    display: flex;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.documents-panel .doc-tag {
    background: var(--bg-primary);
    color: var(--accent-gold);
    padding: 0.15rem 0.4rem;
    font-size: 0.6rem;
    letter-spacing: 0.05em;
    border-radius: 2px;
}

.chat-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.chat-title {
    font-size: 0.8rem;
    letter-spacing: 0.15em;
    color: var(--text-secondary);
}

.redacted {
    background: var(--text-primary);
    color: var(--text-primary);
    padding: 0 0.25rem;
    margin-right: 0.5rem;
}

.control-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-muted);
    padding: 0.25rem 0.75rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.65rem;
    cursor: pointer;
    transition: all 0.3s ease;
}

.control-btn:hover {
    border-color: var(--accent-red);
    color: var(--accent-red);
}

#chat-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    min-height: 0;
}

#chat-messages::-webkit-scrollbar {
    width: 4px;
}

#chat-messages::-webkit-scrollbar-track {
    background: var(--bg-tertiary);
}

#chat-messages::-webkit-scrollbar-thumb {
    background: var(--border-color);
}

.message {
    padding: 0.75rem 1rem;
    border-radius: 4px;
    font-size: 0.85rem;
    line-height: 1.6;
}

.message.system {
    background: rgba(45, 90, 138, 0.2);
    border-left: 3px solid var(--accent-blue);
}

.message.user {
    background: var(--bg-tertiary);
    border-left: 3px solid var(--accent-gold);
    align-self: flex-end;
    max-width: 85%;
}

.message.assistant {
    background: rgba(196, 30, 58, 0.1);
    border-left: 3px solid var(--accent-red);
}

.message .timestamp {
    font-size: 0.7rem;
    color: var(--text-muted);
    display: block;
    margin-bottom: 0.5rem;
}

.message .content {
    color: var(--text-primary);
}

.chat-input-container {
    padding: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    gap: 0.75rem;
}

#chat-input {
    flex: 1;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.85rem;
    outline: none;
    transition: border-color 0.3s ease;
}

#chat-input:focus {
    border-color: var(--accent-gold);
}

#chat-input::placeholder {
    color: var(--text-muted);
}

#send-btn {
    background: var(--accent-red);
    border: none;
    color: white;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

#send-btn:hover {
    background: #a01830;
    transform: scale(1.05);
}

/* ═══════════════════════════════════════════════════════════════
   ISLAND VIEW (standalone)
   ═══════════════════════════════════════════════════════════════ */

#island-view {
    position: relative;
}

#island-view #island-container {
    flex: 1;
    background: var(--bg-primary);
}

/* Island Info Panel (overlay in model view) */
.island-info-overlay {
    position: absolute;
    top: 1rem;
    right: 1rem;
    width: 320px;
    max-height: 400px;
    background: rgba(10, 10, 12, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    z-index: 100;
    display: none;
    overflow-y: auto;
}

.island-info-overlay.visible {
    display: block;
}

.island-info-overlay .panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.island-info-overlay .panel-header h2 {
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
    margin: 0;
}

.close-panel {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.5rem;
    cursor: pointer;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: color 0.3s ease;
}

.close-panel:hover {
    color: var(--accent-red);
}

.panel-header {
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 1rem;
    margin-bottom: 1rem;
}

.panel-header h2 {
    font-size: 0.9rem;
    letter-spacing: 0.15em;
    color: var(--accent-gold);
    margin-bottom: 0.25rem;
}

.coords {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
    border-bottom: 1px dotted var(--border-color);
}

.info-item .label {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.info-item .value {
    color: var(--text-primary);
    font-size: 0.75rem;
}

#location-details {
    margin-top: 1rem;
    padding: 1rem;
    background: var(--bg-tertiary);
    min-height: 100px;
}

#location-details .hint {
    color: var(--text-muted);
    font-size: 0.75rem;
    font-style: italic;
}

#island-legend {
    position: absolute;
    bottom: 1rem;
    left: 1rem;
    background: rgba(10, 10, 12, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid var(--border-color);
    padding: 1rem;
    display: flex;
    gap: 1.5rem;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.7rem;
    color: var(--text-secondary);
}

.legend-item .marker {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.marker.red { background: var(--accent-red); box-shadow: 0 0 10px var(--glow-red); }
.marker.yellow { background: var(--accent-gold); box-shadow: 0 0 10px var(--glow-gold); }
.marker.blue { background: var(--accent-blue); }

/* ═══════════════════════════════════════════════════════════════
   DOCUMENTS VIEW
   ═══════════════════════════════════════════════════════════════ */

#documents-view {
    padding: 2rem;
    overflow-y: auto;
}

.documents-container {
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

.documents-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
}

.documents-header h2 {
    font-size: 1rem;
    letter-spacing: 0.2em;
    color: var(--accent-gold);
}

.search-box input {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    font-family: 'Space Mono', monospace;
    font-size: 0.8rem;
    width: 300px;
    outline: none;
}

.search-box input:focus {
    border-color: var(--accent-gold);
}

#documents-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 1rem;
}

.document-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    transition: all 0.3s ease;
    cursor: pointer;
}

.document-card:hover {
    border-color: var(--accent-red);
    transform: translateY(-2px);
}

.document-card .doc-title {
    font-size: 0.85rem;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.document-card .doc-date {
    font-size: 0.7rem;
    color: var(--text-muted);
    margin-bottom: 0.75rem;
}

.document-card .doc-excerpt {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.5;
    font-family: 'Crimson Pro', serif;
}

.document-card .doc-tags {
    margin-top: 1rem;
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.doc-tag {
    background: var(--bg-tertiary);
    color: var(--accent-gold);
    padding: 0.2rem 0.5rem;
    font-size: 0.65rem;
    letter-spacing: 0.1em;
}

/* ═══════════════════════════════════════════════════════════════
   TOOLTIP
   ═══════════════════════════════════════════════════════════════ */

#tooltip {
    position: fixed;
    background: rgba(10, 10, 12, 0.95);
    border: 1px solid var(--accent-gold);
    padding: 0.75rem 1rem;
    font-size: 0.75rem;
    max-width: 300px;
    pointer-events: none;
    z-index: 10000;
}

#tooltip.hidden {
    display: none;
}

/* ═══════════════════════════════════════════════════════════════
   SCANLINES EFFECT
   ═══════════════════════════════════════════════════════════════ */

body::after {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: repeating-linear-gradient(
        0deg,
        transparent,
        transparent 2px,
        rgba(0, 0, 0, 0.03) 2px,
        rgba(0, 0, 0, 0.03) 4px
    );
    pointer-events: none;
    z-index: 9999;
}

/* ═══════════════════════════════════════════════════════════════
   RESPONSIVE
   ═══════════════════════════════════════════════════════════════ */

@media (max-width: 1024px) {
    .interrogation-layout {
        grid-template-columns: 1fr;
        grid-template-rows: 50vh 50vh 50vh 50vh;
    }
    
    .model-panel {
        border-right: none;
        border-bottom: 2px solid var(--border-color);
    }
    
    .island-panel {
        border-bottom: 2px solid var(--border-color);
    }
    
    .chat-panel {
        border-right: none;
        border-bottom: 2px solid var(--border-color);
    }
}