/* =========================================
   1. CORE THEME & VARIABLES
   ========================================= */

:root {
    /* Core Palette (Light - Default) */
    --bg-root: #F2E9D8;
    --bg-surface: #FCF8F0; 
    --bg-panel: #E6DCCA;
    
    /* Accents */
    --accent-primary: #8B1E24;
    --accent-secondary: #E0A045;
    
    /* Text */
    --text-primary: #2C2C2C;
    --text-secondary: #595959;
    
    /* Structure */
    --border-width: 0.125rem;
    --border-color: #D1C4B0;
    --border-shadow: #BFA98F;
    --border-highlight: #FDFBF7; 
    
    /* Effects */
    --radius-main: 0.75rem;
    --shadow-soft: 0.5rem 0.5rem 0rem rgba(139, 30, 36, 0.15);
    
    /* Fonts */
    --font-head: 'Space Grotesk', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

/* Dark Mode Overrides */
[data-theme="dark"] {
    /* Core Palette (Dark) */
    --bg-root: #2b2525;
    --bg-surface: #362f2f;
    --bg-panel: #423838;
    
    /* Text */
    --text-primary: #f2ede6; 
    --text-secondary: #c9c3bc;
    
    /* Structure */
    --border-color: #5c4d4d;
    --border-shadow: #1f1a1a;
    --border-highlight: #4a4040;
    
    /* Accents (Adjusted for dark contrast) */
    --accent-primary: #ff6b6b; /* Brighter Red */
    --accent-secondary: #feca57; /* Brighter Yellow/Orange */
    --shadow-soft: 0.5rem 0.5rem 0rem rgba(0, 0, 0, 0.5);
}

/* Fix Bootstrap utils in Dark Mode */
[data-theme="dark"] .bg-light {
    background-color: var(--bg-panel) !important;
    color: var(--text-primary) !important;
}

[data-theme="dark"] .text-dark {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .form-control {
    background-color: #231e1e !important;
    border-color: var(--border-color);
    color: var(--text-primary);
}

[data-theme="dark"] .form-control::placeholder {
    color: rgba(230, 220, 202, 0.4);
}

/* =========================================
   2. BASE LAYOUT & TYPOGRAPHY
   ========================================= */

body {
    background-color: var(--bg-root);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.7;
    position: relative;
    overflow-x: hidden;
    padding-top: 6.25rem; 
    width: 100%;
    transition: background-color 0.3s ease, color 0.3s ease;
}

img {
    max-width: 100%;
    height: auto;
}

h1, h2, h3, h4, h5 {
    font-family: var(--font-head);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.text-mono { font-family: var(--font-mono); font-size: 0.9em; }
.text-accent { color: var(--accent-primary) !important; }
.text-accent-sub { color: var(--accent-secondary) !important; font-weight: 700; }
.lh-tight { line-height: 1.1; }

.display-6 {
    font-family: var(--font-mono);
    letter-spacing: -2px;
}

/* =========================================
   3. BACKGROUND & PARALLAX
   ========================================= */

#hardware-bg {
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    z-index: -1;
    width: 100vw;
    max-width: 100%;
    overflow: hidden;
    background-image: 
        url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.04'/%3E%3C/svg%3E"),
        repeating-linear-gradient(
            0deg,
            transparent 0px,
            transparent 1.5rem,
            rgba(0,0,0,0.03) 1.5625rem,
            rgba(0,0,0,0.03) 1.625rem
        );
}

.bg-grid {
    background-image: 
        linear-gradient(rgba(139, 30, 36, 0.05) 1px, transparent 1px),
        linear-gradient(90deg, rgba(139, 30, 36, 0.05) 1px, transparent 1px);
    background-size: 20px 20px;
}

/* Shapes */
.molded-shape {
    position: absolute;
    background: var(--bg-panel);
    border-radius: 0.25rem;
    opacity: 0.6;
    box-shadow: 
        inset 0.125rem 0.125rem 0.3125rem rgba(255,255,255,0.5),
        inset -0.125rem -0.125rem 0.3125rem rgba(0,0,0,0.05);
    z-index: -1;
    will-change: transform;
    backface-visibility: hidden;
    transform: translateZ(0);
}

.shape-vent { width: 9.375rem; height: 0.75rem; background: rgba(0,0,0,0.05); border-radius: 0.375rem; box-shadow: inset 0.0625rem 0.0625rem 0.1875rem rgba(0,0,0,0.2); }
.shape-block { width: 12.5rem; height: 6.25rem; border-bottom: 0.25rem solid var(--border-shadow); border-right: 0.25rem solid var(--border-shadow); }
.shape-circle { width: 7.5rem; height: 7.5rem; border-radius: 50%; border: 0.25rem solid var(--bg-panel); background: transparent; }

/* =========================================
   4. NAVIGATION & BUTTONS
   ========================================= */

.navbar {
    background: rgba(252, 248, 240, 0.8);
    border-bottom: 0.1875rem solid var(--border-color);
    padding: 0.625rem 0;
    backdrop-filter: blur(0.5rem);
    z-index: 1050;
    box-shadow: 0 0.375rem 0rem rgba(139, 30, 36, 0.05);
    transition: background-color 0.3s ease;
}

[data-theme="dark"] .navbar {
    background: rgba(43, 37, 37, 0.9);
}

.navbar-brand {
    font-family: var(--font-head);
    font-weight: 800;
    color: var(--accent-primary) !important;
    display: flex;
    align-items: center;
    gap: 0.625rem;
}

.power-light {
    width: 0.75rem;
    height: 0.75rem;
    background: #FF4444;
    border-radius: 50%;
    background: radial-gradient(circle at 30% 30%, #ff8888, #ff0000);
    box-shadow: 0 0 0.5rem #FF4444;
    border: 0.0625rem solid rgba(0,0,0,0.2);
    display: inline-block;
}

.nav-link {
    font-family: var(--font-head);
    color: var(--text-secondary) !important;
    font-weight: 600;
    font-size: 0.95rem;
    transition: color 0.2s;
    position: relative;
    text-align: center;
}

.nav-link:hover, .nav-link.active { color: var(--accent-primary) !important; }

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.3125rem;
    left: 0;
    width: 100%;
    height: 0.1875rem;
    background: var(--accent-primary);
    border-radius: 0.125rem;
}

/* Theme Toggle specific */
#theme-toggle {
    color: var(--text-secondary);
    opacity: 0.7;
}
#theme-toggle:hover {
    color: var(--accent-secondary) !important;
    opacity: 1;
}

/* Button Container Responsive */
.btn-container-responsive {
    display: flex;
    flex-direction: column; 
    gap: 1rem;
}

/* Buttons - Flexbox fixes alignment issues */
.btn-retro {
    background: var(--bg-surface);
    border-top: 0.125rem solid var(--border-highlight);
    border-left: 0.125rem solid var(--border-highlight);
    border-right: 0.25rem solid var(--border-color);
    border-bottom: 0.375rem solid var(--border-color);
    color: var(--accent-primary);
    font-family: var(--font-head);
    font-weight: 700;
    padding: 0.6rem 1.5rem;
    border-radius: 0.5rem;
    transition: all 0.1s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 0.375rem 0.9375rem rgba(139, 30, 36, 0.1);
    transform: translateY(0);
    position: relative;
    top: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1.2;
}

.btn-retro:hover {
    background: #fff;
    color: var(--accent-primary);
    transform: translateY(-0.125rem);
    border-color: var(--accent-primary);
    border-bottom-width: 0.5rem;
}

[data-theme="dark"] .btn-retro:hover {
    background: #4a4040;
}

.btn-retro:active {
    background: #f0e6d6 !important;
    color: var(--accent-primary) !important;
    border-bottom-width: 0.125rem !important;
    border-color: var(--accent-primary) !important;
    transform: translateY(0.25rem);
    box-shadow: none !important;
}

.btn-retro-dark {
    background: var(--accent-primary);
    border-top: 0.125rem solid #c94f56;
    border-left: 0.125rem solid #c94f56;
    border-right: 0.25rem solid #5a1216;
    border-bottom: 0.375rem solid #5a1216;
    color: #fff;
    box-shadow: 0 0.375rem 0.9375rem rgba(139, 30, 36, 0.25);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    line-height: 1.2;
    /* ADDED: Padding to match btn-retro */
    padding: 0.6rem 1.5rem;
    border-radius: 0.5rem;
}

.btn-retro-dark:hover {
    background: #A6242B;
    color: #fff;
    transform: translateY(-0.125rem);
    border-color: #5a1216;
    border-bottom-width: 0.5rem;
}

.btn-retro-dark:active {
    border-bottom-width: 0.125rem;
    transform: translateY(0.25rem);
    box-shadow: inset 0 0.125rem 0.25rem rgba(0,0,0,0.3);
}

/* =========================================
   5. COMPONENT: SYSTEM CARDS
   ========================================= */

.sys-card {
    background: rgba(252, 248, 240, 0.6); 
    backdrop-filter: blur(0.5rem);
    border-top: 0.125rem solid var(--border-highlight);
    border-left: 0.125rem solid var(--border-highlight);
    border-right: 0.3125rem solid var(--border-shadow);
    border-bottom: 0.3125rem solid var(--border-shadow);
    border-radius: var(--radius-main);
    padding: 1.25rem;
    box-shadow: 0.75rem 0.75rem 0rem var(--shadow-soft);
    transition: transform 0.2s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.2s ease, border-color 0.2s ease;
    position: relative;
    overflow: hidden;
    z-index: 1;
}

[data-theme="dark"] .sys-card {
    background: rgba(54, 47, 47, 0.8);
}

[data-theme="dark"] .sys-card .text-secondary {
    color: var(--text-primary) !important;
}

[data-theme="dark"] .timeline-item .text-secondary {
    color: var(--text-primary) !important;
}

.sys-card:hover {
    transform: translateY(-0.25rem);
    box-shadow: 1rem 1rem 0rem var(--shadow-soft);
    border-color: var(--accent-primary);
}

.sys-sticky-col {
    position: -webkit-sticky;
    position: sticky;
    top: 6.25rem;
    z-index: 900;
}

/* Card Vents */
.deco-vents {
    position: absolute;
    top: 0.9375rem;
    right: 0.9375rem;
    display: flex;
    gap: 0.375rem;
}

.deco-vents-left {
    left: 1.5rem;
    right: auto;
}

.vent-line {
    width: 0.375rem;
    height: 1.5rem;
    background: var(--bg-panel);
    border-radius: 0.25rem;
    box-shadow: inset 0.125rem 0.125rem 0.25rem rgba(0,0,0,0.1);
}

.border-theme { border-color: var(--border-color) !important; }
.border-cream { border-color: #EAE0D0 !important; }
[data-theme="dark"] .border-cream { border-color: #4a4040 !important; }

.border-dashed {
    border: 2px dashed var(--border-color) !important;
    background: transparent !important;
    box-shadow: none !important;
}

/* =========================================
   6. PAGE: HOME & MODALS
   ========================================= */

#projects, #logs {
    background: rgba(44, 44, 44, 0.03); 
    border-top: 0.125rem solid var(--border-color); 
    border-bottom: 0.125rem solid var(--border-color);
}

[data-theme="dark"] #projects, 
[data-theme="dark"] #logs {
    background: rgba(0, 0, 0, 0.2); 
}

/* --- Log Table Theme Handling --- */

/* Default Light Mode */
.log-header-bg {
    background-color: #ffffff;
    color: var(--text-secondary);
}

.log-header-text, .log-body-text {
    color: var(--text-secondary);
}

/* Dark Mode Overrides */
[data-theme="dark"] .bg-light {
    background-color: #0d0c0c !important; 
    color: var(--text-primary) !important;
    border-color: #2d2626 !important;
}

[data-theme="dark"] input.form-control, 
[data-theme="dark"] textarea.form-control {
    background-color: #1a1818 !important; 
    color: #e6dcca !important;            
    border: 1px solid #3d3333 !important;
}

[data-theme="dark"] .form-control::placeholder {
    color: rgba(176, 168, 158, 0.2); 
}

[data-theme="dark"] .log-table {
    background-color: #141111; 
}

[data-theme="dark"] .log-header-bg {
    background-color: #1f1a1a !important; 
    border-bottom: 1px solid #3d3333;
    color: #8f8680; 
}

[data-theme="dark"] .border-cream {
    border-color: #2b2525 !important; 
}

[data-theme="dark"] .log-body-text {
    color: #d6cdc1; 
}

[data-theme="dark"] .log-table > :not(caption) > * > * {
    background-color: #141111 !important; 
    color: #d6cdc1 !important;             
    border-bottom-color: #2b2525 !important; 
}

[data-theme="dark"] .log-table .log-header-bg th {
    background-color: #1f1a1a !important; 
    color: #8f8680 !important;            
    border-bottom-color: #3d3333 !important;
}

[data-theme="dark"] .log-table.table-hover > tbody > tr:hover > * {
    background-color: rgba(255, 255, 255, 0.05) !important; 
    color: #ffffff !important;
    box-shadow: inset 0 0 0 9999px rgba(255, 255, 255, 0.05) !important; 
}

/* Avatar */
.avatar-retro {
    width: 5rem; 
    height: 5rem; 
    background: var(--bg-panel); 
    border-radius: 50%; 
    margin: 0 auto; 
    display: flex; 
    align-items: center; 
    justify-content: center; 
    border: 0.125rem solid var(--border-color);
}

/* Dynamic Text */
#dynamic-text-container {
    font-family: var(--font-mono);
    color: var(--accent-primary);
    font-weight: 500;
    margin-bottom: 0.9375rem;
    display: block;
    min-height: 1.5em;
    text-shadow: 0 0 0.125rem rgba(139, 30, 36, 0.2);
}

.cursor-blink {
    animation: blink 1s step-end infinite;
    color: var(--accent-primary);
    font-weight: bold;
    padding: 0 0.125rem;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }

/* Timeline */
.timeline-wrapper { 
    position: relative;
    background-color: rgba(252, 248, 240, 0.6);
    background-image: repeating-linear-gradient(
        transparent,
        transparent 1.5rem, 
        rgba(209, 196, 176, 0.4) 1.5rem,   
        rgba(209, 196, 176, 0.4) 1.5625rem 
    );
    background-attachment: local; 
    backdrop-filter: blur(0.5rem);
    border: 0.125rem solid rgba(209, 196, 176, 0.4);
    border-radius: var(--radius-main);
    padding: 2rem 2rem 0.5rem 3.5rem; 
}

[data-theme="dark"] .timeline-wrapper {
    background-color: rgba(54, 47, 47, 0.6);
    background-image: repeating-linear-gradient(
        transparent,
        transparent 1.5rem, 
        rgba(255, 255, 255, 0.05) 1.5rem,   
        rgba(255, 255, 255, 0.05) 1.5625rem 
    );
    border-color: var(--border-color);
}

.timeline-line { display: none; }

.timeline-item { position: relative; margin-bottom: 3rem; }

.timeline-dot {
    position: absolute;
    left: -2.06rem;
    top: 0.15rem;
    width: 0.8rem; height: 0.8rem;
    background: var(--bg-root);
    border-radius: 50%;
    z-index: 2;
    box-shadow: inset 0.125rem 0.125rem 0.3125rem rgba(0,0,0,0.5), 
                0.0625rem 0.0625rem 0 rgba(255,255,255,0.6);
    border: none;
}

/* Modals */
.modal-backdrop.show {
    opacity: 0.5;
    background-color: #3b3530;
}

.modal-crt .modal-content {
    background-color: #f7f3e8;
    border: 0.25rem solid var(--border-shadow);
    border-radius: 1rem;
    box-shadow: 0 2rem 4rem rgba(60, 50, 40, 0.25);
    padding: 1rem;
}

[data-theme="dark"] .modal-crt .modal-content {
    background-color: var(--bg-surface);
    border-color: var(--border-color);
}

.modal-crt .modal-body {
    background-color: #FCF8F0;
    border: 0.125rem solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-primary);
    padding: 2rem;
    font-family: var(--font-body);
    box-shadow: inset 0.125rem 0.125rem 0.5rem rgba(0,0,0,0.05);
}

[data-theme="dark"] .modal-crt .modal-body {
    background-color: var(--bg-root);
}

.modal-crt h2 {
    color: var(--accent-primary);
    font-family: var(--font-head);
    letter-spacing: -0.02em;
    margin-bottom: 1.5rem;
}

.modal-crt .btn-close {
    background-color: rgba(0,0,0,0.05);
    border-radius: 50%;
    padding: 0.5rem;
    transition: all 0.2s;
}

[data-theme="dark"] .modal-crt .btn-close {
    filter: invert(1);
}

.modal-crt .btn-close:hover {
    background-color: rgba(139, 30, 36, 0.1);
}

/* Tags */
.tag-retro {
    display: inline-block;
    background: rgba(139, 30, 36, 0.06);
    color: var(--accent-primary);
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.25rem 0.75rem;
    border-radius: 0.25rem;
    border: 0.0625rem solid rgba(139, 30, 36, 0.15);
    box-shadow: inset 0.125rem 0.125rem 0.25rem rgba(0,0,0,0.05), 
                0.0625rem 0.0625rem 0rem rgba(255,255,255,0.5);
}

/* =========================================
   7. PAGE: ABOUT (MAP & STATS)
   ========================================= */

/* Map Visualization */
.map-line-container {
    height: 2px;
    background: var(--border-color);
    margin-top: 1.5rem; 
}

.map-node {
    width: 3rem;
    height: 3rem;
    background: var(--bg-surface);
    border: 2px solid var(--border-color);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 800;
    color: var(--text-secondary);
    z-index: 2;
    position: relative;
    box-shadow: var(--shadow-soft);
}

.map-node.active {
    background: var(--accent-primary);
    color: white;
    border-color: #5a1216;
}

.migration-arrow {
    position: absolute;
    top: 50%;
    left: 0;
    width: 100%;
    height: 2px;
    background: var(--accent-secondary);
    transform: translateY(-50%);
}

.migration-arrow::after {
    content: '';
    position: absolute;
    right: 0;
    top: -4px;
    width: 0; 
    height: 0; 
    border-top: 5px solid transparent;
    border-bottom: 5px solid transparent;
    border-left: 8px solid var(--accent-secondary);
}

.mobile-arrow-down {
    display: none;
}

/* Progress Bars */
.progress-retro {
    height: 1.5rem; 
    background-color: #fff; 
    border-radius: 0; 
    
    /* The Classic "Inset" 3D Border */
    border-top: 2px solid #444;
    border-left: 2px solid #444;
    border-bottom: 2px solid #fff;
    border-right: 2px solid #fff;
    
    padding: 3px; 
    box-shadow: inset 1px 1px 0 #000; 
}

[data-theme="dark"] .progress-retro {
    background-color: #231e1e;
    border-color: #5c4d4d;
}

.bg-retro-bar {
    background-color: transparent !important; 
    
    /* Create the "Blocks" using a repeating gradient */
    background-image: linear-gradient(
        90deg, 
        #808080 0%,  
        #808080 75%, 
        transparent 75%, 
        transparent 100% 
    );
    
    background-size: 20px 100%;
    border-radius: 0;
}

/* Stats */
.stats-box {
    background: rgba(255,255,255,0.4);
    border: 1px solid var(--border-color);
}

[data-theme="dark"] .stats-box {
    background: rgba(255, 255, 255, 0.05);
}

.stats-label {
    font-size: 0.7em;
}

.commit-link {
    transition: all 0.2s ease;
    border-bottom: 1px dashed transparent;
}

.commit-link:hover {
    color: var(--accent-primary);
    border-bottom-color: var(--accent-primary);
    transform: translateY(-1px);
}

/* =========================================
   8. PAGE: LIBRARY, RESEARCH & TERMINAL
   ========================================= */

/* Library */
.book-card {
    transition: all 0.3s ease;
}

.book-card:hover {
    transform: translateY(-5px) rotate(1deg);
    border-color: var(--accent-primary);
}

.book-spine {
    position: absolute;
    top: 0; left: 0; 
    height: 100%; width: 8px; 
    background: var(--accent-primary);
}

/* Terminal */
.card-terminal-retro {
    background-color: #EAE0D0; 
    box-shadow: inset 2px 2px 5px rgba(0,0,0,0.05); 
    border-radius: 0.25rem;
    padding: 1rem;
    color: var(--text-primary);
    font-family: var(--font-mono);
    height: 500px; 
    overflow-y: auto; 
    cursor: text;
}

[data-theme="dark"] .card-terminal-retro {
    background-color: #231e1e;
    color: #e6dcca;
    box-shadow: inset 2px 2px 5px rgba(0,0,0,0.5);
}

.terminal-prompt {
    color: var(--accent-secondary); 
    font-weight: 700;
    margin-right: 0.5rem;
}

.terminal-line {
    font-family: var(--font-mono);
    font-size: 0.875em;
}

#terminal-input {
    font-family: var(--font-mono);
    font-weight: 500;
    caret-color: var(--accent-primary);
    outline: none;
    background: transparent;
    border: 0;
    width: 100%;
    padding: 0;
}

.ascii-art {
    font-size: 0.6rem;   
    line-height: 0.8rem; 
    white-space: pre;    
    font-family: monospace;
}

/* Research */
.paper-card:hover {
    box-shadow: 1rem 1rem 0rem rgba(139, 30, 36, 0.2);
}

.meta-indicator {
    font-size: 0.6em; 
    margin-right: 0.35rem;
}

.card-algo {
    background-color: #EAE0D0;
    border: 1px solid var(--border-shadow);
    color: var(--text-primary);
}

[data-theme="dark"] .card-algo {
    background-color: #362f2f;
}

.algo-header {
    border-bottom: 1px solid var(--border-color);
}

.complexity-item {
    display: flex; 
    justify-content: space-between;
    margin-bottom: 0.5rem;
}

/* =========================================
   9. MEDIA QUERIES (RESPONSIVENESS)
   ========================================= */

@media (min-width: 768px) {
    .btn-container-responsive {
        flex-direction: row; 
    }
}

@media (max-width: 991px) {
    .navbar-nav .btn-retro {
        margin-top: 0.625rem;
        width: 100%;
        display: block;
    }
}

@media (min-width: 992px) {
    .nav-link { margin-left: 0.9375rem; }
}

@media (max-width: 991.98px) {
    /* Hide elements that do not display well on small screens */
    .deco-vents, .vent-line, .timeline-dot {
        display: none;
    }

    .sys-sticky-col {
        position: static;
        z-index: 1;
    }

    .sys-card {
        padding: 1.5rem !important; 
    }

    .map-line-container {
        display: none; 
    }

    .mobile-arrow-down {
        display: block !important;
        color: var(--accent-secondary);
        font-size: 1.5rem;
        margin: 0.5rem 0;
    }

    .timeline-wrapper {
        padding-left: 1.5rem;
        padding-right: 1rem;
    }
    
    .timeline-dot {
        left: -2.1rem;
    }

    .modal-dialog {
        margin: 0.5rem;
        max-width: calc(100% - 1rem);
    }
    
    .modal-crt .modal-body {
        padding: 1.5rem;
    }

    h1.display-3 { font-size: 2.5rem; }
    h1.display-4 { font-size: 2rem; }

    .map-node {
        width: 2.5rem;
        height: 2.5rem;
        font-size: 0.9em;
    }
}