/* ============================================================================
   Data Formatter - TechTools
   ============================================================================ */

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

:root {
    --primary-bg: #0a0a0f;
    --secondary-bg: #1a1a24;
    --card-bg: #232338;
    --accent-primary: #6366f1;
    --accent-secondary: #8b5cf6;
    --accent-tertiary: #06b6d4;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --border: #334155;
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    --glow: 0 0 20px rgba(99, 102, 241, 0.3);

    /* Syntax highlighting colors */
    --syntax-string: #a5d6ff;
    --syntax-number: #79c0ff;
    --syntax-boolean: #ff7b72;
    --syntax-null: #ffa657;
    --syntax-key: #7ee787;
    --syntax-tag: #ff7b72;
    --syntax-attr: #79c0ff;
    --syntax-comment: #8b949e;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--primary-bg);
    min-height: 100vh;
    color: var(--text-primary);
    background-image:
        radial-gradient(circle at 20% 80%, rgba(99, 102, 241, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 92, 246, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 40%, rgba(6, 182, 212, 0.05) 0%, transparent 50%);
}

/* ============================================================================
   App Container
   ============================================================================ */

.app-container {
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

/* ============================================================================
   Header
   ============================================================================ */

.header {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(10px);
    box-shadow: var(--glow);
    flex-shrink: 0;
}

.header-content {
    padding: 10px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 15px;
    min-height: 56px;
}

.back-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 14px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: white;
    text-decoration: none;
    font-size: 13px;
    font-weight: 500;
    transition: all 0.3s ease;
    cursor: pointer;
}

.back-btn:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-2px);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.3);
}

.header-title {
    flex: 1;
    text-align: center;
}

.header h1 {
    font-size: 18px;
    font-weight: 600;
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-bottom: 2px;
}

.subtitle {
    color: rgba(255, 255, 255, 0.8);
    font-size: 12px;
    margin: 0;
    font-weight: 400;
}

.header-spacer {
    width: 90px;
}

/* ============================================================================
   Toolbar
   ============================================================================ */

.toolbar {
    background: var(--secondary-bg);
    border-bottom: 1px solid var(--border);
    padding: 12px 20px;
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    flex-shrink: 0;
}

.toolbar-section {
    display: flex;
    align-items: center;
    gap: 10px;
}

.toolbar-section label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.toolbar-divider {
    width: 1px;
    height: 32px;
    background: var(--border);
}

.select-input {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 8px 12px;
    color: var(--text-primary);
    font-size: 13px;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 100px;
}

.select-input:hover {
    border-color: var(--accent-primary);
}

.select-input:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.2);
}

.action-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border);
    padding: 8px 14px;
    border-radius: 8px;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.action-btn:hover:not(:disabled) {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-color: var(--accent-primary);
    transform: translateY(-1px);
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    border-color: transparent;
    color: white;
}

.action-btn.primary:hover:not(:disabled) {
    background: linear-gradient(135deg, var(--accent-secondary), var(--accent-primary));
    transform: translateY(-1px);
    box-shadow: var(--glow);
}

.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ============================================================================
   Status Bar
   ============================================================================ */

.status-bar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 8px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 12px;
    flex-shrink: 0;
}

.status-left {
    display: flex;
    gap: 20px;
}

.status-item {
    display: flex;
    align-items: center;
    gap: 6px;
    color: var(--text-secondary);
}

.status-item i {
    color: var(--accent-tertiary);
    font-size: 11px;
}

.status-message {
    color: var(--success);
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 6px;
}

.status-message.error {
    color: var(--danger);
}

.status-message.warning {
    color: var(--warning);
}

/* ============================================================================
   Editor Container
   ============================================================================ */

.main-content {
    display: flex;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

.editor-container {
    flex: 1;
    display: flex;
    overflow: hidden;
    background: var(--primary-bg);
}

.editor-wrapper {
    flex: 1;
    display: flex;
    overflow: hidden;
    position: relative;
}

.line-numbers {
    background: var(--secondary-bg);
    padding: 16px 12px;
    text-align: right;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-secondary);
    user-select: none;
    border-right: 1px solid var(--border);
    overflow: hidden;
    min-width: 50px;
}

.line-numbers span {
    display: block;
}

.editor-input {
    flex: 1;
    background: var(--primary-bg);
    border: none;
    padding: 16px 20px;
    font-family: 'JetBrains Mono', 'Fira Code', monospace;
    font-size: 13px;
    line-height: 1.6;
    color: var(--text-primary);
    resize: none;
    outline: none;
    overflow: auto;
    tab-size: 2;
    white-space: pre;
}

.editor-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.editor-input:focus {
    background: rgba(10, 10, 15, 0.95);
}

/* Scrollbar styling */
.editor-input::-webkit-scrollbar,
.line-numbers::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

.editor-input::-webkit-scrollbar-track,
.line-numbers::-webkit-scrollbar-track {
    background: var(--secondary-bg);
}

.editor-input::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 5px;
}

.editor-input::-webkit-scrollbar-thumb:hover {
    background: var(--accent-primary);
}

/* ============================================================================
   Error Panel
   ============================================================================ */

.error-panel {
    background: rgba(239, 68, 68, 0.1);
    border-top: 1px solid var(--danger);
    padding: 0;
    flex-shrink: 0;
    max-height: 200px;
    overflow: auto;
}

.error-panel.hidden {
    display: none;
}

.error-header {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(239, 68, 68, 0.15);
    border-bottom: 1px solid rgba(239, 68, 68, 0.3);
    color: var(--danger);
    font-weight: 600;
    font-size: 14px;
}

.error-header i {
    font-size: 16px;
}

.error-close {
    margin-left: auto;
    background: none;
    border: none;
    color: var(--danger);
    cursor: pointer;
    padding: 4px 8px;
    border-radius: 4px;
    transition: background 0.2s;
}

.error-close:hover {
    background: rgba(239, 68, 68, 0.2);
}

.error-content {
    padding: 16px 20px;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    color: var(--text-primary);
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

/* ============================================================================
   Toast Notification
   ============================================================================ */

.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    background: var(--card-bg);
    border: 1px solid var(--success);
    border-radius: 10px;
    padding: 14px 20px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--success);
    font-weight: 500;
    font-size: 14px;
    box-shadow: var(--shadow), 0 0 20px rgba(16, 185, 129, 0.2);
    z-index: 1000;
    animation: slideIn 0.3s ease;
}

.toast.hidden {
    display: none;
}

.toast.error {
    border-color: var(--danger);
    color: var(--danger);
    box-shadow: var(--shadow), 0 0 20px rgba(239, 68, 68, 0.2);
}

.toast i {
    font-size: 18px;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

/* ============================================================================
   Utility Classes
   ============================================================================ */

.hidden {
    display: none !important;
}

/* ============================================================================
   Mobile Responsive
   ============================================================================ */

@media (max-width: 768px) {
    .header-content {
        padding: 8px 12px;
        min-height: 48px;
    }

    .back-btn span {
        display: none;
    }

    .back-btn {
        padding: 8px 10px;
    }

    .header h1 {
        font-size: 16px;
    }

    .subtitle {
        display: none;
    }

    .header-spacer {
        width: 40px;
    }

    .toolbar {
        padding: 10px 12px;
        gap: 10px;
    }

    .toolbar-section {
        gap: 8px;
    }

    .toolbar-section label {
        display: none;
    }

    .toolbar-divider {
        height: 24px;
    }

    .hide-mobile {
        display: none !important;
    }

    .action-btn span {
        display: none;
    }

    .action-btn {
        padding: 10px 12px;
    }

    .select-input {
        min-width: 80px;
        padding: 8px 10px;
    }

    .status-bar {
        padding: 6px 12px;
        font-size: 11px;
    }

    .status-left {
        gap: 12px;
    }

    .line-numbers {
        min-width: 40px;
        padding: 12px 8px;
        font-size: 12px;
    }

    .editor-input {
        padding: 12px;
        font-size: 12px;
    }

    .toast {
        bottom: 12px;
        right: 12px;
        left: 12px;
        font-size: 13px;
    }

    .error-content {
        padding: 12px;
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    .toolbar {
        padding: 8px 10px;
    }

    .actions-section {
        flex-wrap: wrap;
    }

    .status-item span {
        display: none;
    }
}

/* ============================================================================
   Print Styles
   ============================================================================ */

@media print {
    .header,
    .toolbar,
    .status-bar,
    .error-panel,
    .toast {
        display: none !important;
    }

    .editor-container {
        height: auto;
        overflow: visible;
    }

    .editor-input {
        background: white;
        color: black;
        height: auto;
        overflow: visible;
    }
}