/* ... (Previous variable definitions remain same) ... */
:root {
    /* === LIGHT MODE VARIABLES (Default) === */
    --bg-color: #EAEAE5;
    --grid-line: #D0D0D0;
    --grid-size: 40px;

    --text-main: #111111;
    --text-dim: #555555;
    --border-color: #111111;
    --border-dim: #AAAAAA;

    --accent-color: #0055AA;
    /* Technical Blue */
    --accent-dim: rgba(0, 85, 170, 0.1);

    --card-bg: rgba(255, 255, 255, 0.6);
    /* Slightly more opaque for cards */
    --card-border: #0055AA;

    --font-mono: 'JetBrains Mono', 'Courier New', monospace;
}

body.dark-mode {
    /* === DARK MODE VARIABLES === */
    --bg-color: #1A1A1A;
    --grid-line: #333333;

    --text-main: #FFFFFF;
    --text-dim: #AAAAAA;
    --border-color: #FFFFFF;
    --border-dim: #555555;

    --accent-color: #00E0FF;
    /* Neon Cyan */
    --accent-dim: rgba(0, 224, 255, 0.1);

    --card-bg: rgba(0, 0, 0, 0.5);
    --card-border: #00E0FF;
}

/* ... (Previous global styles: *, body, .technical-grid, .app-container) ... */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    font-family: var(--font-mono);
    height: 100vh;
    overflow: hidden;
    transition: background-color 0.3s, color 0.3s;
}

.technical-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: linear-gradient(to right, var(--grid-line) 1px, transparent 1px), linear-gradient(to bottom, var(--grid-line) 1px, transparent 1px);
    background-size: var(--grid-size) var(--grid-size);
    pointer-events: none;
    z-index: -1;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100%;
    padding: 20px;
    max-width: 1600px;
    margin: 0 auto;
}

/* ... (Previous Header Styles) ... */
.blueprint-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 20px;
}

.header-box {
    border: 2px solid var(--border-color);
    padding: 10px 15px;
    background: var(--bg-color);
}

.header-title {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: 1px;
    margin-bottom: 5px;
}

.header-meta {
    font-size: 0.75rem;
    color: var(--text-dim);
    display: flex;
    gap: 15px;
}

.controls-box {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 10px;
}

.toggle-switch {
    display: flex;
    align-items: center;
    gap: 10px;
    border: 1px solid var(--border-color);
    padding: 5px 10px;
    background: var(--bg-color);
    cursor: pointer;
}

.toggle-switch:hover {
    background: var(--accent-dim);
}

.mode-btn {
    background: none;
    border: none;
    font-family: var(--font-mono);
    color: var(--accent-color);
    font-weight: bold;
    cursor: pointer;
    text-transform: uppercase;
}

/* === NEW BUTTON STYLES === */
.save-btn {
    background: transparent;
    border: 1px solid var(--accent-color);
    color: var(--accent-color);
    font-family: var(--font-mono);
    padding: 5px 10px;
    cursor: pointer;
    font-size: 0.8rem;
    font-weight: bold;
}

.save-btn:hover {
    background: var(--accent-dim);
}

.add-card-btn {
    width: 100%;
    margin-top: 10px;
    padding: 8px;
    background: transparent;
    border: 1px dashed var(--border-dim);
    color: var(--text-dim);
    font-family: var(--font-mono);
    cursor: pointer;
    text-align: center;
    font-weight: bold;
}

.add-card-btn:hover {
    border-color: var(--accent-color);
    color: var(--accent-color);
    background: var(--accent-dim);
}

.delete-card-btn {
    position: absolute;
    top: 5px;
    right: 5px;
    background: transparent;
    border: none;
    color: var(--text-dim);
    font-weight: bold;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.2s;
    font-size: 1rem;
}

.blueprint-card:hover .delete-card-btn {
    opacity: 1;
}

.delete-card-btn:hover {
    color: red;
}


/* ... (Previous Kanban Board Layout) ... */
.kanban-board {
    display: flex;
    flex: 1;
    border-top: 2px solid var(--border-color);
    border-bottom: 2px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.kanban-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    padding-top: 10px;
    min-width: 300px;
}

.column-border-right {
    position: absolute;
    right: 0;
    top: 0;
    bottom: 0;
    width: 1px;
    background: repeating-linear-gradient(to bottom, var(--border-dim), var(--border-dim) 5px, transparent 5px, transparent 10px);
}

#col-todo .column-border-right,
#col-progress .column-border-right {
    display: block;
}

.column-header {
    padding: 0 15px 10px 15px;
}

.zone-label {
    font-size: 0.9rem;
    font-weight: 700;
    display: block;
    margin-bottom: 5px;
}

.header-line {
    height: 2px;
    background-color: var(--border-color);
    width: 100%;
}

.column-content {
    flex: 1;
    padding: 10px 15px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.column-content::-webkit-scrollbar {
    width: 6px;
}

.column-content::-webkit-scrollbar-thumb {
    background-color: var(--border-dim);
}

.column-content::-webkit-scrollbar-track {
    background-color: transparent;
}

/* ... (Previous Card Styles) ... */
.blueprint-card {
    background-color: var(--card-bg);
    border: 1px solid var(--accent-color);
    padding: 15px;
    position: relative;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: grab;
}

.blueprint-card:hover {
    transform: translateY(-2px);
    box-shadow: 2px 2px 0px var(--border-dim);
    z-index: 10;
}

.blueprint-card:active {
    cursor: grabbing;
}

.card-markers {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.marker-tl,
.marker-tr,
.marker-bl,
.marker-br {
    position: absolute;
    width: 6px;
    height: 6px;
    border: 1px solid var(--text-main);
}

.marker-tl {
    top: -1px;
    left: -1px;
    border-right: none;
    border-bottom: none;
}

.marker-tr {
    top: -1px;
    right: -1px;
    border-left: none;
    border-bottom: none;
}

.marker-bl {
    bottom: -1px;
    left: -1px;
    border-right: none;
    border-top: none;
}

.marker-br {
    bottom: -1px;
    right: -1px;
    border-left: none;
    border-top: none;
}

.card-id {
    font-size: 0.7rem;
    color: var(--accent-color);
    font-weight: bold;
    margin-bottom: 5px;
}

.card-title {
    font-size: 0.95rem;
    font-weight: bold;
    margin-bottom: 8px;
    line-height: 1.4;
    word-wrap: break-word;
}

.card-body {
    font-size: 0.8rem;
    color: var(--text-dim);
    margin-bottom: 12px;
    line-height: 1.5;
    white-space: pre-wrap;
}

.card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 0.7rem;
}

.tag {
    color: var(--accent-color);
    font-weight: bold;
}

/* Status Blink (Optional, can be used dynamically) */
.status-blink {
    font-weight: bold;
    animation: blink 2s infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ... (Previous Footer) ... */
.blueprint-footer {
    margin-top: 20px;
    position: relative;
    height: 40px;
}

.footer-line {
    position: absolute;
    top: 0;
    left: 0;
    right: 180px;
    height: 2px;
    background-color: var(--border-color);
}

.legend-box {
    position: absolute;
    top: -10px;
    right: 0;
    border: 1px solid var(--border-color);
    padding: 5px 15px;
    background: var(--bg-color);
    font-size: 0.75rem;
    display: flex;
    gap: 10px;
}


/* === MODAL STYLES === */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.hidden {
    display: none;
}

.modal-content.blueprint-card {
    width: 400px;
    background-color: var(--bg-color);
    /* Maintain theme bg */
    border: 2px solid var(--accent-color);
    box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.2);
    cursor: default;
    /* Reset cursor */
}

/* Override hover effect for modal */
.modal-content.blueprint-card:hover {
    transform: none;
    box-shadow: 10px 10px 0 rgba(0, 0, 0, 0.2);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border-dim);
    padding-bottom: 10px;
}

.modal-title {
    font-weight: bold;
    color: var(--accent-color);
}

.close-modal-btn {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    color: var(--text-main);
    font-weight: bold;
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    margin-bottom: 5px;
    font-weight: bold;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: transparent;
    border: 1px solid var(--border-dim);
    padding: 8px;
    color: var(--text-main);
    font-family: var(--font-mono);
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent-color);
}

.modal-footer {
    text-align: right;
}

.action-btn {
    background: var(--accent-color);
    color: var(--bg-color);
    /* Invert for contrast */
    border: none;
    padding: 8px 15px;
    font-family: var(--font-mono);
    font-weight: bold;
    cursor: pointer;
}

.action-btn:hover {
    opacity: 0.9;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .kanban-board {
        flex-direction: column;
        overflow-y: auto;
    }

    .kanban-column {
        min-width: 100%;
        border-bottom: 1px dashed var(--border-dim);
    }

    .column-border-right {
        display: none !important;
    }
}