/* --- GREEBO_OS_V1 | CORE_INTERFACE_STYLES --- */

:root {
    --bg-color: #000000;
    --text-color: #FFFFFF;
    --accent-color: #F00666; /* LOCKED_GREEBO_PINK */
    --padding: 60px;
    --scanline-color: rgba(255, 255, 255, 0.03); 
    --scanline-subtle: rgba(255, 255, 255, 0.01);
    
    /* THEME_AWARE_MODULE_VARS */
    --module-bg: rgba(240, 6, 102, 0.03);
    --module-border: rgba(240, 6, 102, 0.1);
}

[data-theme="light"] {
    --bg-color: #FFFFFF;
    --text-color: #000000;
    --scanline-color: rgba(0, 0, 0, 0.02); 
    --scanline-subtle: rgba(0, 0, 0, 0.005);
    
    /* LIGHT_MODE_MODULE_ADJUST */
    --module-bg: rgba(0, 0, 0, 0.03);
    --module-border: rgba(0, 0, 0, 0.1);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: 'Space Mono', monospace;
    height: 100vh; width: 100vw;
    overflow: hidden;
    transition: background-color 0.3s ease, color 0.3s ease;
}

/* --- 1. CRT OVERLAYS --- */
.overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; z-index: 50; pointer-events: none; }

.scanlines {
    background: linear-gradient(var(--scanline-subtle) 50%, var(--scanline-color) 50%),
                linear-gradient(90deg, rgba(255, 0, 0, 0.01), rgba(0, 255, 0, 0.005), rgba(0, 0, 255, 0.01));
    background-size: 100% 3px, 3px 100%;
    opacity: 1;
}

/* --- 2. UI LAYER GRID & ALIGNMENT --- */
.ui-layer {
    position: absolute; top: 0; left: 0; z-index: 10;
    height: 100%; width: 100%;
    padding: var(--padding);
    display: grid; 
    grid-template-columns: 1fr auto 1fr; 
    grid-template-rows: auto 1fr auto;
    pointer-events: none;
    transition: opacity 0.4s ease, filter 0.4s ease;
}

.logo, .site-name, .system-status, .nav-item, .theme-toggle, #os-modal, .mouse-pos, .side-greeble, .menu-container, .footer-container { 
    pointer-events: auto !important; 
}

.logo { grid-column: 1; grid-row: 1; font-size: 1.2rem; font-weight: bold; justify-self: start; }

.system-status {
    grid-column: 2; grid-row: 1;
    display: flex; align-items: center; gap: 15px;
    justify-self: center;
}

.site-name { 
    grid-column: 3; grid-row: 1; 
    text-align: right !important; 
    justify-self: end;
}

/* --- 3. UNIFIED GREEBLE SYSTEM --- */
.ui-layer .greeble, 
.ui-layer #mouse-coords,
.ui-layer .mouse-pos, 
.ui-layer .site-name,
.ui-layer .copyright,
.ui-layer #os-clock,
.ui-layer #user-loc {
    font-family: 'Space Mono', monospace !important;
    font-size: 0.7rem !important;
    letter-spacing: 0.2rem !important;
    text-transform: uppercase !important;
    opacity: 0.3 !important; 
    color: var(--text-color) !important;
    pointer-events: none;
    transition: opacity 0.3s ease, color 0.3s ease;
}

.core-sync {
    font-size: 1.5rem;
    color: var(--accent-color) !important;
    text-shadow: 0 0 10px var(--accent-color);
    margin-bottom: 5px;
    display: inline-block;
    animation: core-rotate 4s linear infinite !important;
    opacity: 0.8;
}

@keyframes core-rotate {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

#greebo-variant {
    font-family: 'Space Mono', monospace !important;
    font-size: 0.7rem !important;
    letter-spacing: 0.2rem !important;
    text-transform: uppercase !important;
    color: var(--text-color);
    z-index: 20 !important; 
}

.accent-char {
    color: var(--accent-color) !important;
    opacity: 1 !important; 
    font-weight: 900 !important;
}

.status-pulse {
    width: 4px; height: 4px;
    background: var(--accent-color);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

/* --- 4. SIDE GREEBLES --- */
.side-greeble {
    position: absolute;
    top: 50%;
    display: flex;
    flex-direction: column;
    z-index: 20 !important;
    pointer-events: none;
}

.ui-layer .left-side {
    left: var(--padding);
    writing-mode: vertical-rl; 
    text-orientation: sideways; 
    transform: translateY(-50%) rotate(180deg);
    font-weight: 700 !important; 
    white-space: nowrap; 
    color: var(--text-color) !important;
    opacity: 0.4 !important; 
}

.right-side {
    right: var(--padding);
    transform: translateY(-50%);
    text-align: right;
    gap: 3px; 
}

.right-side span {
    display: inline-block;
    font-family: 'Space Mono', monospace;
    font-size: 0.7rem;
    letter-spacing: 0.2rem;
    font-weight: 700;
    color: var(--text-color);
    opacity: 0.3;
    animation: trigram-scan 3s infinite;
}

.right-side span:nth-child(1) { animation-delay: 0.0s; }
.right-side span:nth-child(2) { animation-delay: 0.1s; }
.right-side span:nth-child(3) { animation-delay: 0.2s; }
.right-side span:nth-child(4) { animation-delay: 0.3s; }
.right-side span:nth-child(5) { animation-delay: 0.4s; }
.right-side span:nth-child(6) { animation-delay: 0.5s; }
.right-side span:nth-child(7) { animation-delay: 0.6s; }
.right-side span:nth-child(8) { animation-delay: 0.7s; }

@keyframes trigram-scan {
    0%, 10%, 100% { color: var(--text-color); opacity: 0.3; transform: scale(1); }
    5% { color: var(--accent-color); opacity: 1; transform: scale(1.3); }
}

/* --- 5. NAVIGATION & CONTROLS --- */
.bottom-ctrls {
    grid-column: 2; grid-row: 3;
    display: flex; flex-direction: column;
    align-items: center; gap: 10px;
    align-self: flex-end;
}

.ctrl-row {
    display: flex;
    flex-direction: row; 
    gap: 10px;           
    justify-content: center;
}

.theme-toggle {
    font-family: 'Space Mono'; background: none; border: 1px solid var(--text-color);
    color: var(--text-color); font-size: 0.6rem; padding: 4px 8px;
    opacity: 0.4; cursor: pointer; transition: 0.3s;
    min-width: 110px;    
}
.theme-toggle:hover { opacity: 1; border-color: var(--accent-color); color: var(--accent-color); }

.footer-container { 
    grid-column: 3; grid-row: 3; 
    display: flex; flex-direction: column; 
    justify-content: flex-end; align-items: flex-end; 
}

.nav-right .nav-item { margin-left: auto; }

.menu-container { grid-row: 3; display: flex; flex-direction: column; justify-content: flex-end; }
.nav-group { list-style: none; display: flex; flex-direction: column; }
.nav-item { 
    text-decoration: none; color: var(--text-color); 
    font-size: 0.9rem; line-height: 1.8; transition: 0.2s; 
    width: fit-content; cursor: pointer !important;
}
.nav-item:hover { color: var(--accent-color); }
.nav-left .nav-item::before { content: "> "; color: var(--accent-color); margin-right: 10px; }
.nav-right .nav-item::after { content: " <"; color: var(--accent-color); margin-left: 10px; }

.back-cmd {
    font-size: 0.7rem;
    opacity: 0.5;
    margin-bottom: 5px;
    cursor: pointer;
}
.back-cmd:hover { color: var(--accent-color); opacity: 1; }

/* --- 6. DECAL STACK --- */
.bg-decal-container {
    position: fixed; top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    z-index: 5; pointer-events: none;
}

.stack { display: grid; grid-template-columns: 1fr; align-items: center; justify-items: center; }
.stack span {
    grid-row-start: 1; grid-column-start: 1;
    display: flex; justify-content: center; align-items: center;
    width:666px; 
    --stack-height: calc(100% / var(--stacks));
    --inverse-index: calc(calc(var(--stacks) - 1) - var(--index));
    clip-path: inset(calc(var(--stack-height) * var(--index)) 0 calc(var(--stack-height) * var(--inverse-index)) 0);
    animation: clean-glitch 5s ease-in-out infinite;
}

.logo-svg { width: 100%; filter: invert(1); transition: filter 0.3s; }
[data-theme="light"] .logo-svg { filter: invert(0); }

/* --- 7. MODAL ENGINE --- */
#os-modal {
    position: fixed; top: 50%; left: 50%; transform: translate(-50%, -50%) scale(0.95);
    width: 75vw; height: 75vh;
    background: color-mix(in srgb, var(--bg-color), transparent 5%);
    border: 1px solid var(--accent-color);
    z-index: 100; display: none; opacity: 0; padding: 50px;
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    overflow-y: auto !important;
    scrollbar-width: thin; scrollbar-color: var(--accent-color) transparent;
}

#os-modal.active { display: block; opacity: 1; transform: translate(-50%, -50%) scale(1); }

body.modal-open .ui-layer {
    filter: blur(4px);
    opacity: 0.3;
}

/* --- 8. MODULE_GRID_SYSTEM --- */
#module-gate {
    position: fixed; inset: 0; 
    padding: 25vh 15vw; 
    z-index: 8;
    display: grid;
    grid-template-columns: 1fr 2.5fr 1fr; 
    grid-template-rows: 1fr 1fr;
    gap: 40px;
    pointer-events: none;
    transition: opacity 0.5s ease, visibility 0.5s;
}

#module-gate.modules-off { opacity: 0; visibility: hidden; }

.module-slot {
    position: relative;
    width: 100%; aspect-ratio: 3 / 2;
    align-self: center; 
    container-type: size; 
    pointer-events: auto;
    
    /* THEME_AWARE_STYLING */
    border: 1px solid var(--module-border);
    background: var(--module-bg);
    transition: 0.3s;
}

#mod-tl { grid-column: 1; grid-row: 1; align-self: start; }
#mod-tr { grid-column: 3; grid-row: 1; align-self: start; }
#mod-bl { grid-column: 1; grid-row: 2; align-self: end; }
#mod-br { grid-column: 3; grid-row: 2; align-self: end; }

@keyframes mod-flicker {
    0% { opacity: 0; transform: scaleY(0.01); filter: brightness(5); }
    70% { opacity: 0.5; transform: scaleY(1.05); }
    100% { opacity: 1; transform: scaleY(1); filter: brightness(1); }
}

#module-gate:not(.modules-off) .module-slot {
    animation: mod-flicker 0.4s ease-out forwards;
}

/* --- TACTICAL_PROJECT_CARDS --- */
.folder-header {
    border-bottom: 1px solid var(--module-border);
    padding-bottom: 15px;
    margin-bottom: 25px;
}

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
    gap: 15px;
}

.project-card {
    position: relative;
    border: 1px solid var(--module-border);
    background: var(--module-bg);
    padding: 20px;
    cursor: pointer;
    transition: 0.3s cubic-bezier(0.23, 1, 0.32, 1);
}

.project-card:hover {
    border-color: var(--accent-color);
    background: rgba(240, 6, 102, 0.08);
    transform: translateY(-3px);
}

.card-edge {
    position: absolute; top: 0; left: 0; width: 2px; height: 0;
    background: var(--accent-color);
    transition: 0.3s;
}
.project-card:hover .card-edge { height: 100%; }

.tech-id { display: block; font-size: 0.6rem; color: var(--accent-color); margin-bottom: 5px; }
.human-id { display: block; font-size: 0.8rem; font-weight: bold; }

.view-cmd {
    margin-top: 15px;
    font-size: 0.55rem;
    color: var(--accent-color);
    opacity: 0;
    transition: 0.3s;
}
.project-card:hover .view-cmd { opacity: 1; }

/* --- 9. ANIMATIONS & MOBILE --- */
@keyframes pulse { 0%, 100% { opacity: 0.2; } 50% { opacity: 1; } }
@keyframes clean-glitch { 0%, 96% { transform: translate(0); } 97% { transform: translate(-10px); } 98% { transform: translate(5px); } 100% { transform: translate(0); } }

@media screen and (max-width: 1024px) {
    :root { --padding: 25px; }
    #module-gate, .system-status, .side-greeble, .bottom-ctrls, .site-name, .bg-decal-container { display: none !important; }
    .ui-layer { display: flex; flex-direction: column; height: 100%; padding: var(--padding); pointer-events: none; }
    .logo { display: block !important; pointer-events: auto; }
    .menu-container, .footer-container { display: flex; flex-direction: column; align-items: flex-start !important; text-align: left; pointer-events: auto; }
    .menu-container { margin-top: auto; margin-bottom: 30px; }
    .nav-group { align-items: flex-start !important; padding: 0 !important; }
    .nav-right .nav-item::before { content: "> "; color: var(--accent-color); margin-right: 10px; }
}