:root {
    --bg-body: #0f1115;
    --bg-sidebar: #161b22;
    --bg-card: #1c2128;
    --bg-input: #0d1117;
    --border-color: #30363d;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-color: #2f81f7;
    --code-color: #a5d6ff;
}

body {
    background-color: var(--bg-body);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
}

/* Sidebar */
.sidebar {
    background-color: var(--bg-sidebar);
    min-height: 100vh;
    border-right: 1px solid var(--border-color);
    position: fixed;
    width: 250px;
    z-index: 10;
}

.nav-item {
    padding: 12px 20px;
    color: var(--text-secondary);
    cursor: pointer;
    display: flex;
    align-items: center;
    transition: 0.2s;
}

.nav-item:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.05);
}

.nav-item.active {
    background: rgba(47, 129, 247, 0.15);
    color: var(--accent-color);
    border-right: 3px solid var(--accent-color);
}

.nav-item i {
    width: 25px;
}

/* Content */
.main-content {
    margin-left: 250px;
    padding: 30px;
}

.custom-card {
    background-color: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
}

.card-header {
    border-bottom: 1px solid var(--border-color);
    padding: 15px 20px;
    font-weight: 600;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.card-body {
    padding: 20px;
}

/* Inputs & Outputs */
.form-control,
.form-select {
    background-color: var(--bg-input);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    font-family: 'JetBrains Mono', monospace;
    transition: 0.2s;
}

.form-control:focus,
.form-select:focus {
    background-color: var(--bg-input);
    border-color: var(--accent-color);
    color: var(--text-primary);
    box-shadow: none;
}

/* --- FIXED: Disabled State Styles --- */
.form-control:disabled,
.form-select:disabled,
input:disabled {
    background-color: rgba(255, 255, 255, 0.08) !important;
    /* Slightly lighter bg */
    color: #ffffff !important;
    /* Bright White Text */
    border-color: var(--border-color);
    cursor: not-allowed;
    opacity: 0.8;
    /* Slight transparency */
}

.input-group-text {
    background-color: #21262d;
    border-color: var(--border-color);
    color: var(--text-secondary);
}

.form-control::placeholder {
    color: rgba(255, 255, 255, 0.7) !important;
    opacity: 1;
    /* Firefox override */
}

.fmt-select {
    max-width: 80px;
    font-size: 0.85em;
    font-weight: bold;
    color: var(--accent-color);
}

/* Helper Text & Hints */
.form-text,
.text-muted,
#chHint {
    color: #aeb6be !important;
}

/* Make hints brighter */

pre,
.gen-output {
    background-color: #0d1117;
    padding: 15px;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    color: var(--code-color);
    font-family: 'JetBrains Mono', monospace;
    word-break: break-all;
}

.gen-output {
    color: #7ee787;
    font-size: 1.2rem;
    font-weight: bold;
}

/* Structure Badges */
.struct-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.85em;
    padding: 5px 8px;
    margin-right: 4px;
    border-radius: 4px;
    display: inline-block;
    margin-bottom: 4px;
}

.sb-header {
    background: rgba(210, 153, 34, 0.2);
    color: #d29922;
    border: 1px solid rgba(210, 153, 34, 0.4);
}

.sb-type {
    background: rgba(47, 129, 247, 0.2);
    color: #58a6ff;
    border: 1px solid rgba(47, 129, 247, 0.4);
}

.sb-len {
    background: rgba(110, 118, 129, 0.2);
    color: #8b949e;
    border: 1px solid rgba(110, 118, 129, 0.4);
}

.sb-cmd {
    background: rgba(247, 129, 102, 0.2);
    color: #ff7b72;
    border: 1px solid rgba(247, 129, 102, 0.4);
}

.sb-data {
    background: rgba(63, 185, 80, 0.2);
    color: #3fb950;
    border: 1px solid rgba(63, 185, 80, 0.4);
}

.sb-crc {
    background: rgba(163, 113, 247, 0.2);
    color: #d2a8ff;
    border: 1px solid rgba(163, 113, 247, 0.4);
}

.sb-mask {
    background: rgba(47, 129, 247, 0.2);
    color: #58a6ff;
    border: 1px solid rgba(47, 129, 247, 0.4);
}

.sb-seq {
    background: rgba(32, 178, 170, 0.2);
    color: #20b2aa;
    border: 1px solid rgba(32, 178, 170, 0.4);
}

/* UI Elements */
.grid-selector {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 10px;
}

.feature-check {
    display: none;
}

.feature-label {
    text-align: left;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9em;
    cursor: pointer;
    color: var(--text-secondary);
    background: var(--bg-input);
    transition: 0.2s;
    display: flex;
    align-items: center;
}

.feature-label:hover {
    border-color: var(--accent-color);
    color: var(--text-primary);
}

.feature-check:checked+.feature-label {
    background: rgba(47, 129, 247, 0.15);
    color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 0 8px rgba(47, 129, 247, 0.2);
}

.weekday-selector {
    display: flex;
    gap: 5px;
    justify-content: space-between;
}

.weekday-check {
    display: none;
}

.weekday-label {
    flex: 1;
    text-align: center;
    padding: 6px 0;
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-size: 0.8em;
    cursor: pointer;
    color: var(--text-secondary);
    background: var(--bg-input);
}

.weekday-check:checked+.weekday-label {
    background: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

/* Utilities */
.btn-primary {
    background-color: var(--accent-color);
    border: none;
}

.btn-primary:hover {
    background-color: #266dd3;
}

.text-accent {
    color: var(--accent-color);
}

.json-key {
    color: #ff7b72;
}

.json-string {
    color: #a5d6ff;
}

.json-number {
    color: #79c0ff;
}
/* Toast Notification */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1050;
}

.custom-toast {
    background-color: rgba(46, 204, 113, 0.9); /* Green */
    color: white;
    padding: 10px 20px;
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
    margin-top: 10px;
    animation: fadeInOut 2.5s forwards;
    display: flex;
    align-items: center;
    font-size: 0.9rem;
    font-weight: 500;
    pointer-events: none;
}

@keyframes fadeInOut {
    0% { opacity: 0; transform: translateY(10px); }
    10% { opacity: 1; transform: translateY(0); }
    80% { opacity: 1; transform: translateY(0); }
    100% { opacity: 0; transform: translateY(-10px); }
}