/* Terminal / Cyberpunk Theme Variables */
:root {
    --terminal-bg: #0d0d0d;
    --terminal-text: #00ff41;
    /* Classic Matrix Green */
    --terminal-dim: #008f11;
    --terminal-alert: #ff0055;
    /* Cyberpunk Red/Pink */
    --terminal-glow: 0 0 10px rgba(0, 255, 65, 0.5);
    --scanline-color: rgba(0, 0, 0, 0.5);
    --font-mono: 'Courier New', Courier, monospace;
}

/* Reset & Base */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--terminal-bg);
    color: var(--terminal-text);
    font-family: var(--font-mono);
    line-height: 1.6;
    overflow-x: hidden;
    min-height: 100vh;
}

/* CRT Effect Overlay */
body::before {
    content: " ";
    display: block;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    right: 0;
    background: linear-gradient(to bottom,
            rgba(18, 16, 16, 0) 50%,
            rgba(0, 0, 0, 0.25) 50%);
    background-size: 100% 4px;
    z-index: 999;
    pointer-events: none;
}

/* Container */
.terminal-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 2rem;
    position: relative;
    z-index: 1;
}

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

.terminal-title {
    font-size: 2rem;
    text-transform: uppercase;
    text-shadow: var(--terminal-glow);
}

.terminal-status {
    font-size: 0.9rem;
    color: var(--terminal-dim);
}

.blink {
    animation: blink 1s step-end infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

/* Grid / Calendar */
.calendar-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1.5rem;
}

.day-card {
    border: 1px solid var(--terminal-dim);
    padding: 1.5rem;
    text-align: center;
    transition: all 0.3s ease;
    cursor: pointer;
    background: rgba(0, 20, 0, 0.3);
    text-decoration: none;
    color: var(--terminal-text);
    display: block;
}

.day-card:hover {
    border-color: var(--terminal-text);
    box-shadow: var(--terminal-glow);
    transform: translateY(-2px);
    background: rgba(0, 40, 0, 0.5);
}

.day-number {
    font-size: 2.5rem;
    font-weight: bold;
    display: block;
    margin-bottom: 0.5rem;
}

.day-status {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.day-card.locked {
    opacity: 0.5;
    cursor: not-allowed;
    border-color: #333;
    color: #555;
}

/* Day Detail View - 3 Column Layout */
.day-page {
    height: 100vh;
    display: flex;
    flex-direction: column;
}

.day-layout {
    display: grid;
    grid-template-columns: 250px 1fr 280px;
    gap: 1rem;
    flex: 1;
    min-height: 0;
}

.input-panel,
.viz-panel,
.output-panel {
    border: 1px solid var(--terminal-dim);
    display: flex;
    flex-direction: column;
    background: rgba(0, 10, 0, 0.2);
    overflow: hidden;
}

.panel-header {
    border-bottom: 1px solid var(--terminal-dim);
    padding: 0.5rem 1rem;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.85rem;
    flex-shrink: 0;
}

/* Input Panel */
.input-panel textarea.terminal-input {
    flex: 1;
    width: 100%;
    background: transparent;
    border: none;
    color: var(--terminal-text);
    font-family: var(--font-mono);
    resize: none;
    outline: none;
    font-size: 0.85rem;
    padding: 0.5rem;
}

/* Visualization Panel (Largest) */
.viz-panel {
    min-width: 0;
}

.viz-panel .viz-container {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: auto;
}

.viz-placeholder {
    color: var(--terminal-dim);
    font-size: 1.2rem;
}

/* Output Panel */
.output-panel {
    padding: 1rem;
    gap: 1rem;
}

.part-section {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.part-section label {
    font-size: 0.9rem;
    color: var(--terminal-dim);
    text-transform: uppercase;
}

.result-row {
    display: flex;
    gap: 0.5rem;
}

.result-box {
    flex: 1;
    background: rgba(0, 40, 0, 0.3);
    border: 1px solid var(--terminal-dim);
    color: var(--terminal-text);
    font-family: var(--font-mono);
    font-size: 1.1rem;
    padding: 0.5rem;
    text-align: center;
}

.result-box:focus {
    outline: none;
    border-color: var(--terminal-text);
}

.btn-run {
    background: transparent;
    border: 1px solid var(--terminal-text);
    color: var(--terminal-text);
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.2s;
    font-size: 0.8rem;
}

.btn-run:hover {
    background: var(--terminal-text);
    color: var(--terminal-bg);
    box-shadow: var(--terminal-glow);
}

.status-log {
    margin-top: auto;
    padding-top: 1rem;
    border-top: 1px solid var(--terminal-dim);
    font-size: 0.8rem;
    color: var(--terminal-dim);
}

.back-link {
    color: var(--terminal-dim);
    text-decoration: none;
    font-size: 0.9rem;
}

.back-link:hover {
    color: var(--terminal-text);
}

.btn-terminal {
    background: transparent;
    border: 1px solid var(--terminal-text);
    color: var(--terminal-text);
    padding: 0.5rem 1rem;
    font-family: var(--font-mono);
    cursor: pointer;
    text-transform: uppercase;
    transition: all 0.2s;
}

.btn-terminal:hover {
    background: var(--terminal-text);
    color: var(--terminal-bg);
    box-shadow: var(--terminal-glow);
}

.back-link {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--terminal-dim);
    text-decoration: none;
}

.back-link:hover {
    color: var(--terminal-text);
}