/**
 * MODULE: Gibson Terminal CSS Stylesheet
 * SUBSYSTEM: Front-End UI / Presentation Layer
 * CONCURRENCY: Thread-safe (CSS stylesheet)
 *
 * DESCRIPTION:
 * Authentic 1995 Web 1.0 retro CRT phosphor terminal styling for The Gibson system node.
 * Includes CRT curvature scanlines, neon phosphor palettes, classic inset table bevels,
 * and glowing status displays.
 */

:root {
    --bg-color: #030805;
    --terminal-green: #00ff66;
    --terminal-green-dim: #008833;
    --terminal-cyan: #00f0ff;
    --terminal-amber: #ffaa00;
    --terminal-red: #ff3333;
    --glow-color: rgba(0, 255, 102, 0.4);
    --bezel-dark: #121c15;
    --bezel-light: #3a5c43;
    --font-stack: "Courier New", Courier, Monaco, "Lucida Console", monospace;
}

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

body {
    background-color: var(--bg-color);
    color: var(--terminal-green);
    font-family: var(--font-stack);
    font-size: 14px;
    line-height: 1.4;
    min-height: 100vh;
    padding: 15px;
    overflow-x: hidden;
    position: relative;
    text-shadow: 0 0 4px var(--glow-color);
}

/* CRT Overlay Effect */
body::before {
    content: " ";
    display: block;
    position: fixed;
    top: 0; left: 0; bottom: 0; right: 0;
    background: linear-gradient(rgba(18, 16, 16, 0) 50%, rgba(0, 0, 0, 0.25) 50%), linear-gradient(90deg, rgba(255, 0, 0, 0.03), rgba(0, 255, 0, 0.01), rgba(0, 0, 255, 0.03));
    z-index: 999;
    background-size: 100% 3px, 6px 100%;
    pointer-events: none;
}

/* Subtle CRT Flicker */
@keyframes crt-flicker {
    0% { opacity: 0.98; }
    50% { opacity: 1; }
    100% { opacity: 0.99; }
}

.crt-container {
    animation: crt-flicker 0.15s infinite;
    max-width: 960px;
    margin: 0 auto;
    border: 3px solid var(--terminal-green);
    box-shadow: 0 0 15px var(--glow-color), inset 0 0 15px var(--glow-color);
    background-color: rgba(3, 10, 6, 0.95);
    padding: 20px;
}

/* Web 1.0 Retro Header */
header {
    border-bottom: 2px dashed var(--terminal-green);
    padding-bottom: 12px;
    margin-bottom: 20px;
}

.system-title {
    font-size: 18px;
    font-weight: bold;
    color: var(--terminal-cyan);
    letter-spacing: 2px;
    text-transform: uppercase;
}

.banner-text {
    white-space: pre;
    font-family: var(--font-stack);
    color: var(--terminal-green);
    font-weight: bold;
    font-size: 12px;
    line-height: 1.1;
    overflow-x: auto;
}

/* 1995 Web 1.0 Table Design */
table.retro-table {
    width: 100%;
    border-collapse: collapse;
    border: 2px solid var(--bezel-light);
    margin-bottom: 20px;
}

table.retro-table th {
    background-color: var(--bezel-dark);
    color: var(--terminal-cyan);
    padding: 8px;
    text-align: left;
    border: 1px solid var(--bezel-light);
    font-size: 13px;
    text-transform: uppercase;
}

table.retro-table td {
    padding: 8px;
    border: 1px solid var(--bezel-light);
    font-size: 13px;
}

/* Status Indicators */
.status-indicator {
    display: inline-block;
    width: 10px;
    height: 10px;
    background-color: var(--terminal-green);
    box-shadow: 0 0 8px var(--terminal-green);
    border-radius: 50%;
    margin-right: 6px;
}

.status-alert {
    background-color: var(--terminal-red);
    box-shadow: 0 0 8px var(--terminal-red);
}

.status-warn {
    background-color: var(--terminal-amber);
    box-shadow: 0 0 8px var(--terminal-amber);
}

/* Web 1.0 Form Styling */
fieldset.retro-fieldset {
    border: 2px solid var(--terminal-green);
    padding: 15px;
    margin-bottom: 20px;
    background: rgba(0, 30, 10, 0.4);
}

legend {
    color: var(--terminal-cyan);
    font-weight: bold;
    padding: 0 8px;
    text-transform: uppercase;
}

.form-group {
    margin-bottom: 12px;
}

label {
    display: block;
    margin-bottom: 4px;
    color: var(--terminal-green);
    font-weight: bold;
}

input[type="text"], input[type="password"] {
    background-color: #000;
    color: var(--terminal-green);
    border: 2px solid var(--terminal-green-dim);
    padding: 8px 10px;
    font-family: var(--font-stack);
    font-size: 14px;
    width: 100%;
    max-width: 400px;
    outline: none;
    text-shadow: 0 0 3px var(--glow-color);
}

input[type="text"]:focus, input[type="password"]:focus {
    border-color: var(--terminal-green);
    box-shadow: 0 0 8px var(--glow-color);
}

/* Classic 1995 Beveled Button */
button.retro-btn, input[type="submit"].retro-btn {
    background: linear-gradient(180deg, #1b3d24 0%, #0c1f12 100%);
    color: var(--terminal-green);
    border-top: 2px solid #3e734c;
    border-left: 2px solid #3e734c;
    border-bottom: 2px solid #051409;
    border-right: 2px solid #051409;
    padding: 8px 18px;
    font-family: var(--font-stack);
    font-weight: bold;
    font-size: 13px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-right: 8px;
    text-shadow: 0 0 3px var(--glow-color);
}

button.retro-btn:active, input[type="submit"].retro-btn:active {
    border-top: 2px solid #051409;
    border-left: 2px solid #051409;
    border-bottom: 2px solid #3e734c;
    border-right: 2px solid #3e734c;
    background: #09170e;
}

/* Blinking Cursor & Text */
.blink {
    animation: blinker 1s steps(2, start) infinite;
}

@keyframes blinker {
    to {
        visibility: hidden;
    }
}

/* Terminal Console Box */
.terminal-box {
    background-color: #000;
    border: 2px solid var(--terminal-green-dim);
    padding: 12px;
    height: 250px;
    overflow-y: auto;
    font-family: var(--font-stack);
    white-space: pre-wrap;
    margin-bottom: 15px;
    color: var(--terminal-green);
    line-height: 1.3;
}

.terminal-line {
    margin-bottom: 4px;
}

.terminal-prompt {
    color: var(--terminal-cyan);
    font-weight: bold;
}

.terminal-error {
    color: var(--terminal-red);
    font-weight: bold;
}

.terminal-success {
    color: var(--terminal-green);
    font-weight: bold;
}

/* Visual 3D Grid Frame Simulation */
.gibson-grid-frame {
    border: 2px dashed var(--terminal-cyan);
    padding: 10px;
    text-align: center;
    margin-bottom: 20px;
    background-color: rgba(0, 15, 25, 0.4);
}

canvas#gibsonCanvas {
    background-color: #000;
    border: 1px solid var(--terminal-cyan);
    max-width: 100%;
}

/* Retro Footer */
footer {
    border-top: 1px solid var(--terminal-green-dim);
    padding-top: 10px;
    margin-top: 20px;
    font-size: 11px;
    color: var(--terminal-green-dim);
    text-align: center;
}

footer a {
    color: var(--terminal-cyan);
    text-decoration: underline;
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .banner-text {
        font-size: 9px;
    }
    .crt-container {
        padding: 10px;
    }
    input[type="text"], input[type="password"] {
        max-width: 100%;
    }
}