/* styles.css */
:root {
    --bg-main: #070b12;
    --card-bg: #0f172a;
    --card-border: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;

    --accent-blue: #38bdf8;
    --accent-amber: #fbbf24;
    --accent-green: #22c55e;
    --accent-red: #ef4444;
    --accent-purple: #8b5cf6;
    --accent-pink: #e879f9;
}

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

body {
    font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background-color: var(--bg-main);
    color: var(--text-primary);
    overflow-x: hidden;
}

/* App Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 20px;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--card-border);
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo-icon {
    font-size: 24px;
}

.logo-title {
    font-size: 18px;
    font-weight: 700;
    color: var(--accent-blue);
}

.logo-badge {
    background: #1e293b;
    color: var(--accent-amber);
    padding: 3px 8px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
}

.header-controls {
    display: flex;
    gap: 10px;
    align-items: center;
}

.select-input {
    background: #1e293b;
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 7px 12px;
    border-radius: 6px;
    font-size: 13px;
    outline: none;
    cursor: pointer;
    width: 100%;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.select-input:focus {
    border-color: var(--accent-blue);
}

.btn {
    background: #1e293b;
    color: var(--text-primary);
    border: 1px solid var(--card-border);
    padding: 7px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 4px;
    white-space: nowrap;
}

.btn:hover {
    background: #334155;
    border-color: #475569;
}

.btn.active {
    background: var(--accent-blue);
    color: #0f172a;
    border-color: var(--accent-blue);
}

.btn-success {
    background: #166534;
    border-color: #22c55e;
    color: #f8fafc;
}

.btn-success:hover {
    background: #15803d;
}

.btn-primary {
    background: #0284c7;
    border-color: #38bdf8;
    color: #f8fafc;
}

.btn-primary:hover {
    background: #0369a1;
}

.btn-danger {
    background: #991b1b;
    border-color: #ef4444;
    color: #f8fafc;
}

.btn-danger:hover {
    background: #b91c1c;
}

/* 3-Column Layout Grid (Left Palette | Center Breadboard | Right AI Copilot) */
.app-container-grid {
    display: grid;
    grid-template-columns: 310px 1fr 340px;
    gap: 12px;
    padding: 12px;
    height: calc(100vh - 60px);
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.card-title {
    padding: 10px 14px;
    background: #162032;
    border-bottom: 1px solid var(--card-border);
    font-size: 13px;
    font-weight: 700;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

/* Left Palette Sidebar Styling */
.palette-sidebar {
    padding: 12px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.palette-section {
    background: #131c2e;
    border: 1px solid var(--card-border);
    border-radius: 6px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.palette-section-title {
    font-size: 12px;
    font-weight: 700;
    color: var(--accent-blue);
    margin-bottom: 2px;
}

.palette-grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 6px;
}

.palette-block-vertical {
    display: flex;
    flex-direction: column;
    gap: 6px;
    width: 100%;
}

/* Center Breadboard Panel */
.breadboard-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.breadboard-toolbar {
    display: flex;
    gap: 8px;
    padding: 8px 12px;
    background: #162032;
    border-bottom: 1px solid var(--card-border);
}

.canvas-wrapper {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    background: #070b12;
    overflow: auto;
    position: relative;
}

/* Right AI Copilot Panel */
.copilot-panel {
    display: flex;
    flex-direction: column;
    height: 100%;
}

.copilot-chat {
    flex: 1;
    padding: 12px;
    overflow-y: auto;
    font-size: 13px;
    line-height: 1.6;
    background: #090d16;
}

.copilot-actions {
    padding: 10px;
    background: #162032;
    border-top: 1px solid var(--card-border);
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.action-chip {
    background: #1e293b;
    color: var(--accent-blue);
    border: 1px solid #334155;
    padding: 6px 10px;
    border-radius: 4px;
    font-size: 12px;
    cursor: pointer;
    text-align: left;
}

.action-chip:hover {
    background: #334155;
    border-color: var(--accent-blue);
}

/* Floating Instruments Modal Window */
.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.7);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 8px;
    width: 90%;
    max-width: 620px;
    overflow: hidden;
    box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.5);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: #162032;
    border-bottom: 1px solid var(--card-border);
}

.instrument-controls {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    background: #162032;
    border-top: 1px solid var(--card-border);
}

.control-group {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 12px;
}

.select-input-sm {
    background: #1e293b;
    color: #f8fafc;
    border: 1px solid #334155;
    border-radius: 4px;
    padding: 2px 4px;
}

.select-input-sm option {
    background: #0f172a;
    color: #f8fafc;
}