:root {
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --bg-dark: #0f172a;
    --card-bg: rgba(30, 41, 59, 0.7);
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
    --glass-border: rgba(255, 255, 255, 0.1);
    --accent: #10b981;
}

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

body {
    font-family: 'Outfit', sans-serif;
    background: radial-gradient(circle at top left, #1e293b, #0f172a);
    color: var(--text-main);
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(15, 23, 42, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.logo-icon {
    font-size: 1.5rem;
}

.logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    letter-spacing: -0.5px;
    background: linear-gradient(to right, #818cf8, #c084fc);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.app-container {
    flex: 1;
    display: flex;
    overflow: hidden;
}

.blockly-container {
    flex: 1;
    background: transparent !important;
}

.sidebar {
    background: var(--card-bg);
    backdrop-filter: blur(8px);
    border-left: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
}

.code-preview {
    /* Takes top half */
    display: flex;
    flex-direction: column;
    border-bottom: 1px solid var(--glass-border);
    min-height: 100px;
    height: 50%;
}

.terminal-section {
    /* Takes bottom half */
    display: flex;
    flex-direction: column;
    background: #0f172a;
    position: relative;
    min-height: 100px;
    height: 50%;
}

#terminal-container {
    flex: 1;
    margin: 1rem 1rem 2rem 1rem;
    /* Use margins so xterm.js can calculate dimensions correctly */
    overflow: hidden;
}

.preview-header {
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--glass-border);
    background: rgba(30, 41, 59, 0.5);
    /* slight differentiation */
}

.preview-header h3 {
    font-size: 1rem;
    color: var(--text-dim);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

pre {
    flex: 1;
    padding: 1.5rem;
    overflow: auto;
    font-family: 'Fira Code', 'Courier New', monospace;
    font-size: 0.95rem;
    color: #f8fafc !important;
    background: #020617;
    /* Very dark background for depth */
    line-height: 1.5;
}

#generated-code {
    color: inherit;
}

.btn {
    padding: 0.6rem 1.2rem;
    border-radius: 8px;
    font-family: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(99, 102, 241, 0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--glass-border);
}

.btn-ghost {
    background: transparent;
    color: var(--text-dim);
    font-size: 0.8rem;
}

/* Blockly Overrides */
.blocklyMainBackground {
    stroke: none !important;
    fill: transparent !important;
}

.blocklyFlyoutBackground {
    fill: rgba(30, 41, 59, 0.5) !important;
    backdrop-filter: blur(4px);
}

/* Toolbox Refinements (Labels and Spacing) */
.blocklyToolbox,
.blocklyToolboxDiv {
    width: 140px !important;
    min-width: 140px !important;
    max-width: 140px !important;
    background-color: #1e293b !important;
    border-right: 1px solid var(--glass-border) !important;
    overflow-x: hidden !important;
}

.blocklyToolboxCategoryLabel,
.blocklyTreeLabel {
    color: #f8fafc !important;
    font-family: 'Outfit', sans-serif !important;
    font-size: 13px !important;
    font-weight: 700 !important;
    line-height: 1.2 !important;
    white-space: normal !important;
    overflow-wrap: break-word !important;
    word-wrap: break-word !important;
    word-break: break-all !important;
    display: block !important;
    width: 100px !important;
    /* Fixed pixel width to force wrap */
    flex: none !important;
    padding: 0 !important;
    margin: -2px 0 0 0 !important;
    /* Small negative top margin to visually center font */
}

.blocklyToolboxCategory,
.blocklyTreeRow {
    width: 124px !important;
    max-width: 124px !important;
    margin: 2px 8px !important;
    /* Minimal vertical margin */
    border-radius: 8px !important;
    transition: all 0.2s ease !important;
    height: auto !important;
    padding: 4px 8px 4px 8px !important;
    /* Even vertical padding */
    box-sizing: border-box !important;
    display: flex !important;
    align-items: center !important;
}




.blocklyTreeRow.blocklyTreeSelected {
    background-color: rgba(99, 102, 241, 0.2) !important;
}

.blocklyTreeRow:not(.blocklyTreeSelected):hover {
    background-color: rgba(255, 255, 255, 0.05) !important;
}

/* Split.js Gutter Styles */
.gutter {
    background-color: var(--glass-border);
    background-repeat: no-repeat;
    background-position: 50%;
    transition: background-color 0.2s;
}

.gutter.gutter-horizontal {
    cursor: col-resize;
    width: 6px;
    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAUAAAAeCAYAAADkftS9AAAAIklEQVQoU2M4c+bMfxAGAgYYMwGrIQgFk0tQ6OoYK+AAGQDV3TqH2yJzcwAAAABJRU5ErkJggg==');
}

.gutter.gutter-vertical {
    cursor: row-resize;
    height: 6px;
    background-image: url('data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAB4AAAAFAQMAAABo7865AAAABlBMVEVHcEzMzMzyCB2iAAAAAXRSTlMAQObYZgAAABBJREFUeF5jOAMEEAIEEFBgAAWgAQwRDA0AAAAASUVORK5CYII=');
}

.gutter:hover {
    background-color: var(--accent);
}

/* ============================================================
   Board Selector Modal
   ============================================================ */
#board-modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.82);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from {
        opacity: 0;
        transform: scale(0.97);
    }

    to {
        opacity: 1;
        transform: scale(1);
    }
}

.board-modal-content {
    max-width: 900px;
    width: 100%;
    text-align: center;
}

.board-modal-title {
    font-size: 2.5rem;
    font-weight: 800;
    background: linear-gradient(135deg, #818cf8, #c084fc 50%, #38bdf8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -0.5px;
}

.board-modal-subtitle {
    color: var(--text-dim);
    font-size: 1rem;
    margin-bottom: 2.5rem;
    line-height: 1.6;
}

.board-card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
    margin-top: 0.5rem;
}

.board-card {
    background: rgba(30, 41, 59, 0.85);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 18px;
    padding: 1.75rem;
    text-align: left;
    cursor: default;
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
    position: relative;
    overflow: hidden;
}

.board-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.03), transparent);
    pointer-events: none;
}

.board-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 24px 48px rgba(0, 0, 0, 0.5);
    border-color: rgba(255, 255, 255, 0.18);
}

.board-card-header {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.85rem;
    padding-bottom: 0.85rem;
    border-bottom: 2px solid;
    /* color set inline per board */
}

.board-card-icon {
    font-size: 2.8rem;
    line-height: 1;
    flex-shrink: 0;
}

.board-card-header h3 {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0.15rem;
}

.board-chip-name {
    font-size: 0.78rem;
    color: var(--text-dim);
    font-weight: 400;
}

.board-card-desc {
    color: var(--text-dim);
    font-size: 0.88rem;
    margin-bottom: 1.1rem;
    line-height: 1.6;
}

.board-pin-section {
    margin-bottom: 1.35rem;
    min-height: 60px;
}

.board-pin-label {
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--text-dim);
    margin-bottom: 0.5rem;
}

.board-pin-badges {
    display: flex;
    flex-wrap: wrap;
    gap: 0.3rem;
}

.pin-badge {
    background: rgba(99, 102, 241, 0.15);
    border: 1px solid rgba(99, 102, 241, 0.3);
    color: #a5b4fc;
    padding: 3px 9px;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    font-family: 'Fira Code', 'Courier New', monospace;
}

.board-pin-note {
    font-size: 0.88rem;
    color: var(--text-main);
    padding: 0.4rem 0;
}

.board-caution {
    font-size: 0.78rem;
    color: #fbbf24;
    margin-top: 0.6rem;
    padding: 0.5rem 0.75rem;
    background: rgba(245, 158, 11, 0.1);
    border: 1px solid rgba(245, 158, 11, 0.25);
    border-radius: 8px;
    line-height: 1.5;
}

.board-select-btn {
    width: 100%;
    padding: 0.8rem;
    border-radius: 10px;
    border: none;
    color: white;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    cursor: pointer;
    letter-spacing: 0.02em;
    transition: filter 0.2s ease, transform 0.15s ease;
}

.board-select-btn:hover {
    filter: brightness(1.1);
    transform: scale(1.02);
}

/* Board badge in navbar */
.board-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.3rem 0.85rem;
    background: rgba(16, 185, 129, 0.12);
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: 20px;
    font-size: 0.78rem;
    font-weight: 600;
    color: #6ee7b7;
    letter-spacing: 0.03em;
    white-space: nowrap;
}

.board-badge::before {
    content: '●';
    margin-right: 0.45rem;
    font-size: 0.45rem;
    color: #10b981;
    vertical-align: middle;
}

/* Disabled board card (switch not allowed) */
.board-card-disabled {
    opacity: 0.4;
    pointer-events: none;
}

.board-card-disabled:hover {
    transform: none;
    box-shadow: none;
    border-color: rgba(255, 255, 255, 0.08);
}

/* Warning banner when workspace has blocks */
.board-switch-warn {
    display: inline-block;
    background: rgba(245, 158, 11, 0.12);
    border: 1px solid rgba(245, 158, 11, 0.3);
    color: #fbbf24;
    padding: 0.5rem 1.1rem;
    border-radius: 8px;
    font-size: 0.84rem;
    margin-top: -1rem;
    margin-bottom: 1.75rem;
    line-height: 1.5;
}

/* Load Existing Project card — spans full grid width */
.board-card-load {
    grid-column: 1 / -1;
    display: flex;
    flex-direction: column;
    border-color: rgba(99, 102, 241, 0.2);
}

.board-card-load:hover {
    border-color: rgba(99, 102, 241, 0.5);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.15);
}

/* ==========================================================================
   Custom Blockly Prompt Modal (Variables)
   ========================================================================== */
#blockly-prompt-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.85);
    backdrop-filter: blur(4px);
    z-index: 10000;
    display: none;
    align-items: center;
    justify-content: center;
}

.blockly-prompt-content {
    background: #1e293b;
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 24px;
    width: 380px;
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
    display: flex;
    flex-direction: column;
    gap: 16px;
    font-family: inherit;
}

#blockly-prompt-message {
    margin: 0;
    color: #f8fafc;
    font-size: 1.1rem;
    font-weight: 600;
}

#blockly-prompt-input {
    background: #0f172a;
    border: 1px solid rgba(255, 255, 255, 0.2);
    color: #f8fafc;
    border-radius: 6px;
    padding: 10px 12px;
    font-size: 1rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s;
}

#blockly-prompt-input:focus {
    border-color: #3b82f6;
}

.blockly-prompt-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 8px;
}