/* =========================================================
   HOLMES AUTOMATOR - VANGUARD EDITION (PRO THEME)
   ========================================================= */

:root {
    /* Color Palette: Deep Space & Neon Cyan */
    --bg-base: #0b0f19;
    --bg-surface: #141b2d;
    --bg-card: #1f2940;
    --border-color: #2d3748;
    --accent-primary: #00d2ff;
    --accent-glow: rgba(0, 210, 255, 0.4);
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --terminal-bg: #050505;
    --success-green: #10b981;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.6;
    display: flex;
    justify-content: center;
    padding: 2rem;
    min-height: 100vh;
}

/* --- Layout & Containers --- */
.app-container {
    width: 100%;
    max-width: 1000px;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

header {
    text-align: center;
    padding: 2rem;
    border-bottom: 1px solid var(--border-color);
    background: linear-gradient(180deg, rgba(31,41,64,1) 0%, rgba(20,27,45,1) 100%);
}

header h1 {
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: 1px;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

header p {
    color: var(--accent-primary);
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.configuration-panel {
    padding: 2rem;
}

/* --- Category Blocks --- */
.category-block {
    margin-bottom: 2rem;
    background-color: var(--bg-card);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.category-block:hover {
    border-color: var(--accent-primary);
    box-shadow: 0 0 15px var(--accent-glow);
}

.category-block h3 {
    font-size: 1.1rem;
    margin-bottom: 1.2rem;
    color: var(--text-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.options-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 1rem;
}

/* --- Custom Professional Checkboxes --- */
.custom-checkbox {
    display: flex;
    align-items: center;
    position: relative;
    padding-left: 32px;
    cursor: pointer;
    font-size: 0.95rem;
    color: var(--text-secondary);
    user-select: none;
    transition: color 0.2s;
}

.custom-checkbox:hover {
    color: var(--text-primary);
}

.custom-checkbox input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 20px;
    width: 20px;
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    transition: all 0.2s;
}

.custom-checkbox input:checked ~ .checkmark {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    box-shadow: 0 0 10px var(--accent-glow);
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
}

.custom-checkbox input:checked ~ .checkmark:after {
    display: block;
}

.custom-checkbox .checkmark:after {
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid var(--bg-base);
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

/* --- Buttons --- */
.primary-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--bg-base);
    background-color: var(--accent-primary);
    border: none;
    border-radius: 6px;
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 1px;
    transition: all 0.3s ease;
    margin-top: 1rem;
}

.primary-btn:hover {
    background-color: #33dcff;
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

.action-buttons {
    display: flex;
    gap: 1rem;
}

.action-buttons button {
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
    border-radius: 4px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s ease;
}

#copyBtn {
    background-color: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

#copyBtn:hover {
    color: var(--text-primary);
    border-color: var(--text-primary);
}

#downloadBtn {
    background-color: var(--success-green);
    color: #fff;
    border: none;
}

#downloadBtn:hover {
    background-color: #0ea5e9;
    box-shadow: 0 0 15px rgba(14, 165, 233, 0.4);
}

/* --- Output Terminal --- */
.output-panel {
    background-color: var(--terminal-bg);
    border-top: 1px solid var(--border-color);
}

.output-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background-color: #0f141f;
    border-bottom: 1px solid var(--border-color);
}

.file-name {
    font-family: 'Fira Code', monospace;
    color: var(--success-green);
    font-size: 0.9rem;
}

pre {
    padding: 1.5rem 2rem;
    margin: 0;
    overflow-x: auto;
}

code {
    font-family: 'Fira Code', monospace;
    font-size: 0.9rem;
    color: #a6accd;
}

/* Custom Scrollbar for Terminal */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-surface);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* --- Responsive Adjustments --- */
@media (max-width: 768px) {
    .options-grid {
        grid-template-columns: 1fr;
    }
    .output-header {
        flex-direction: column;
        gap: 1rem;
        align-items: flex-start;
    }
}