/* CSS Variables */
:root {
    --primary: #FF3B30;
    --primary-dark: #D32F2F;
    --secondary: #1a1a1a;
    --accent: #FFD60A;
    --bg-dark: #0a0a0a;
    --bg-mid: #1a1a1a;
    --bg-light: #2a2a2a;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border: #333333;
    --success: #34C759;
    --warning: #FF9500;
    --shadow: rgba(0, 0, 0, 0.5);
}

/* Fonts */
@import url('https://fonts.googleapis.com/css2?family=Work+Sans:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

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

body {
    font-family: 'Work Sans', sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Layout */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Header */
.app-header {
    background: var(--bg-mid);
    border-bottom: 2px solid var(--primary);
    padding: 1rem 2rem;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 20px var(--shadow);
}

.header-content {
    max-width: 1600px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: -0.5px;
}

.header-nav {
    display: flex;
    gap: 0.5rem;
}

.nav-btn {
    background: transparent;
    color: var(--text-secondary);
    border: none;
    padding: 0.5rem 1rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border-radius: 6px;
    font-family: 'Work Sans', sans-serif;
}

.nav-btn:hover {
    color: var(--text-primary);
    background: var(--bg-light);
}

.nav-btn.active {
    color: var(--primary);
    background: var(--bg-dark);
}

.header-actions {
    display: flex;
    gap: 0.75rem;
}

/* Buttons */
.btn-primary,
.btn-secondary,
.btn-add {
    border: none;
    padding: 0.65rem 1.5rem;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 6px;
    transition: all 0.3s ease;
    font-family: 'Work Sans', sans-serif;
}

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

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(255, 59, 48, 0.4);
}

.btn-secondary {
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--bg-mid);
    border-color: var(--text-secondary);
}

.btn-add {
    background: transparent;
    color: var(--accent);
    border: 2px dashed var(--accent);
    padding: 0.5rem 1rem;
    font-size: 0.9rem;
}

.btn-add:hover {
    background: rgba(255, 214, 10, 0.1);
    border-style: solid;
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem;
    max-width: 1600px;
    margin: 0 auto;
    width: 100%;
}

.view {
    display: none;
    animation: fadeIn 0.4s ease;
}

.view.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Form Container */
.form-container {
    display: flex;
    flex-direction: column;
    gap: 2.5rem;
}

.form-section {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    transition: border-color 0.3s ease;
}

.form-section:hover {
    border-color: var(--text-secondary);
}

.section-title {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 1.5rem;
    color: var(--text-primary);
    position: relative;
    padding-bottom: 0.5rem;
}

.section-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--primary);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.section-header .section-title {
    margin-bottom: 0;
}

/* Form Elements */
.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

label {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input[type="text"],
input[type="email"],
input[type="tel"],
textarea,
select {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    font-size: 1rem;
    font-family: 'Work Sans', sans-serif;
    transition: all 0.3s ease;
}

input[type="text"]:focus,
input[type="email"]:focus,
input[type="tel"]:focus,
textarea:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 59, 48, 0.1);
}

textarea {
    resize: vertical;
    min-height: 100px;
}

/* Lineup */
.lineup-container {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.lineup-item {
    display: grid;
    grid-template-columns: 1fr 1fr auto;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    align-items: end;
}

.lineup-item input {
    margin: 0;
}

.lineup-item button {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.75rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lineup-item button:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Stage Designer */
.stage-designer {
    display: grid;
    grid-template-columns: 250px 1fr;
    gap: 2rem;
}

.designer-toolbar {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.toolbar-group {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1rem;
}

.toolbar-group h3 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.75rem;
}

.tool-btn {
    width: 100%;
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.65rem;
    margin-bottom: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: left;
    transition: all 0.3s ease;
    font-family: 'Work Sans', sans-serif;
}

.tool-btn:last-child {
    margin-bottom: 0;
}

.tool-btn:hover {
    background: var(--bg-light);
    border-color: var(--primary);
    transform: translateX(3px);
}

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

/* Stage Canvas */
.stage-canvas-container {
    position: relative;
    background: var(--bg-dark);
    border: 2px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

#stageCanvas {
    display: block;
    width: 100%;
    height: auto;
    cursor: crosshair;
}

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

/* Channel List */
.channel-list-container {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    overflow: hidden;
}

.channel-list-header {
    display: grid;
    grid-template-columns: 50px 1fr 1.5fr 120px 1.5fr 50px;
    gap: 1rem;
    padding: 1rem;
    background: var(--bg-light);
    border-bottom: 2px solid var(--border);
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.channel-item {
    display: grid;
    grid-template-columns: 50px 1fr 1.5fr 120px 1.5fr 50px;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    align-items: center;
}

.channel-item:last-child {
    border-bottom: none;
}

.channel-item input,
.channel-item select {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    padding: 0.5rem;
    border-radius: 4px;
}

.channel-number {
    font-family: 'JetBrains Mono', monospace;
    font-weight: 600;
    color: var(--primary);
    font-size: 1.1rem;
}

.channel-item button {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.5rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.channel-item button:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Checkbox Group */
.checkbox-group {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 1.5rem;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-size: 1rem;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    cursor: pointer;
    accent-color: var(--primary);
}

/* Preview */
.preview-container {
    background: white;
    max-width: 1000px;
    margin: 0 auto;
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 10px 40px var(--shadow);
}

.pdf-preview {
    color: #000;
    font-family: Arial, sans-serif;
}

.pdf-preview h1 {
    font-size: 2.5rem;
    color: #000;
    margin-bottom: 1rem;
}

.pdf-preview h2 {
    font-size: 1.5rem;
    color: #000;
    margin-top: 2rem;
    margin-bottom: 1rem;
    border-bottom: 2px solid #000;
    padding-bottom: 0.5rem;
}

.pdf-preview .lineup-list,
.pdf-preview .channel-table {
    margin: 1rem 0;
}

.pdf-preview table {
    width: 100%;
    border-collapse: collapse;
    margin: 1rem 0;
}

.pdf-preview th,
.pdf-preview td {
    border: 1px solid #000;
    padding: 0.5rem;
    text-align: left;
}

.pdf-preview th {
    background: #f0f0f0;
    font-weight: bold;
}

/* Admin */
.admin-container {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
}

.admin-list {
    display: grid;
    gap: 1rem;
    margin-top: 2rem;
}

.admin-item {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all 0.3s ease;
}

.admin-item:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.admin-item-info h3 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.admin-item-info p {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.admin-item-actions {
    display: flex;
    gap: 0.75rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 2000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    animation: fadeIn 0.3s ease;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--bg-mid);
    border: 1px solid var(--border);
    border-radius: 12px;
    max-width: 600px;
    width: 90%;
    max-height: 80vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 20px 60px var(--shadow);
}

.modal-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 1.5rem;
}

.modal-close {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    transition: all 0.3s ease;
    line-height: 1;
}

.modal-close:hover {
    color: var(--primary);
    transform: rotate(90deg);
}

.modal-body {
    padding: 1.5rem;
    overflow-y: auto;
}

.modal-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.modal-list-item {
    background: var(--bg-dark);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 1rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-list-item:hover {
    border-color: var(--primary);
    transform: translateX(5px);
}

.modal-list-item h4 {
    font-size: 1.1rem;
    margin-bottom: 0.25rem;
}

.modal-list-item p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.modal-list-item button {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.modal-list-item button:hover {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
}

/* Responsive */
@media (max-width: 1024px) {
    .stage-designer {
        grid-template-columns: 1fr;
    }
    
    .designer-toolbar {
        flex-direction: row;
        overflow-x: auto;
    }
    
    .toolbar-group {
        min-width: 200px;
    }
}

@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        align-items: stretch;
    }
    
    .header-nav,
    .header-actions {
        width: 100%;
        justify-content: center;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .lineup-item {
        grid-template-columns: 1fr;
    }
    
    .channel-list-header,
    .channel-item {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }
    
    .channel-list-header span {
        display: none;
    }
    
    .channel-item input,
    .channel-item select {
        width: 100%;
    }
}

/* Print Styles */
@media print {
    body {
        background: white;
    }
    
    .app-header,
    .header-actions,
    .btn-add,
    button {
        display: none !important;
    }
    
    .preview-container {
        box-shadow: none;
        padding: 0;
    }
}