/* ==================== */
/* CSS Variables & Themes */
/* ==================== */

:root {
    --transition-speed: 0.3s;
}

/* Light Themes */
[data-theme="light-gray"] {
    --bg-primary: #f5f5f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #e8e8e8;
    --text-primary: #333333;
    --text-secondary: #666666;
    --accent: #555555;
    --accent-hover: #333333;
    --border: #dddddd;
    --shadow: rgba(0, 0, 0, 0.1);
    --success: #4a9c5d;
    --error: #c45c5c;
}

[data-theme="light-blue"] {
    --bg-primary: #f0f4f8;
    --bg-secondary: #ffffff;
    --bg-tertiary: #dbe4ee;
    --text-primary: #1a365d;
    --text-secondary: #4a5568;
    --accent: #3182ce;
    --accent-hover: #2c5282;
    --border: #cbd5e0;
    --shadow: rgba(49, 130, 206, 0.1);
    --success: #38a169;
    --error: #e53e3e;
}

[data-theme="light-green"] {
    --bg-primary: #f0f9f4;
    --bg-secondary: #ffffff;
    --bg-tertiary: #d4edda;
    --text-primary: #1e4d2b;
    --text-secondary: #4a6f5a;
    --accent: #38a169;
    --accent-hover: #2f855a;
    --border: #c6e6d3;
    --shadow: rgba(56, 161, 105, 0.1);
    --success: #2f855a;
    --error: #c53030;
}

[data-theme="light-sand"] {
    --bg-primary: #faf8f5;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f0ebe3;
    --text-primary: #4a4035;
    --text-secondary: #6b5d4d;
    --accent: #a67c52;
    --accent-hover: #8b6544;
    --border: #e0d6c8;
    --shadow: rgba(166, 124, 82, 0.1);
    --success: #6b8e5e;
    --error: #b85c4c;
}

[data-theme="light-lavender"] {
    --bg-primary: #f8f7fc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #ebe8f4;
    --text-primary: #3d3654;
    --text-secondary: #5e5577;
    --accent: #7c6aad;
    --accent-hover: #6b5a99;
    --border: #d8d3e6;
    --shadow: rgba(124, 106, 173, 0.1);
    --success: #5e8c61;
    --error: #b85c7a;
}

/* Dark Themes */
[data-theme="dark-charcoal"] {
    --bg-primary: #1a1a1a;
    --bg-secondary: #252525;
    --bg-tertiary: #333333;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #888888;
    --accent-hover: #aaaaaa;
    --border: #404040;
    --shadow: rgba(0, 0, 0, 0.3);
    --success: #5cb176;
    --error: #d66a6a;
}

[data-theme="dark-ocean"] {
    --bg-primary: #0d1b2a;
    --bg-secondary: #1b2838;
    --bg-tertiary: #253649;
    --text-primary: #e0e6ed;
    --text-secondary: #8892a0;
    --accent: #4a90c2;
    --accent-hover: #5da8e0;
    --border: #2d4052;
    --shadow: rgba(0, 0, 0, 0.4);
    --success: #4caf7c;
    --error: #e06060;
}

[data-theme="dark-forest"] {
    --bg-primary: #141e14;
    --bg-secondary: #1c281c;
    --bg-tertiary: #283828;
    --text-primary: #d4e4d4;
    --text-secondary: #8aa88a;
    --accent: #5a9a5a;
    --accent-hover: #6cb86c;
    --border: #344834;
    --shadow: rgba(0, 0, 0, 0.4);
    --success: #6cb86c;
    --error: #c86464;
}

[data-theme="dark-plum"] {
    --bg-primary: #1a141e;
    --bg-secondary: #251c2a;
    --bg-tertiary: #352838;
    --text-primary: #e4d4e8;
    --text-secondary: #a088aa;
    --accent: #9a5a9a;
    --accent-hover: #b86cb8;
    --border: #483448;
    --shadow: rgba(0, 0, 0, 0.4);
    --success: #6aaa6a;
    --error: #c86488;
}

[data-theme="dark-coffee"] {
    --bg-primary: #1a1614;
    --bg-secondary: #252019;
    --bg-tertiary: #352d24;
    --text-primary: #e8e0d4;
    --text-secondary: #aa9880;
    --accent: #a07850;
    --accent-hover: #c09060;
    --border: #483c30;
    --shadow: rgba(0, 0, 0, 0.4);
    --success: #7a9a5a;
    --error: #c87464;
}

/* ==================== */
/* Base Styles */
/* ==================== */

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* ==================== */
/* Icons */
/* ==================== */

.icon {
    width: 18px;
    height: 18px;
    stroke: currentColor;
}

.icon-btn {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    vertical-align: middle;
}

.icon-title {
    width: 32px;
    height: 32px;
    stroke: currentColor;
    vertical-align: middle;
    margin-right: 8px;
}

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

header {
    text-align: center;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 30px;
}

header h1 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

.theme-selector {
    margin-top: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.theme-selector label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.theme-selector select {
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: 6px;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    cursor: pointer;
    transition: border-color var(--transition-speed);
}

.theme-selector select:hover {
    border-color: var(--accent);
}

/* ==================== */
/* Tabs */
/* ==================== */

.tabs {
    display: flex;
    gap: 5px;
    margin-bottom: 20px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 10px;
}

.tab {
    padding: 10px 20px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1rem;
    cursor: pointer;
    border-radius: 6px 6px 0 0;
    transition: all var(--transition-speed);
}

.tab:hover {
    color: var(--text-primary);
    background-color: var(--bg-tertiary);
}

.tab.active {
    color: var(--accent);
    background-color: var(--bg-secondary);
    font-weight: 500;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
}

/* ==================== */
/* Encoding Selector */
/* ==================== */

.encoding-selector {
    margin-bottom: 20px;
}

.encoding-selector label {
    display: block;
    margin-bottom: 10px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.encoding-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.encoding-btn {
    padding: 8px 16px;
    border: 1px solid var(--border);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed);
}

.encoding-btn:hover {
    border-color: var(--accent);
    background-color: var(--bg-tertiary);
}

.encoding-btn.active {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

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

.editor-container {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    gap: 15px;
    align-items: stretch;
}

@media (max-width: 768px) {
    .editor-container {
        grid-template-columns: 1fr;
    }
    
    .action-buttons {
        flex-direction: row !important;
        justify-content: center;
    }
}

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

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background-color: var(--bg-tertiary);
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
    font-weight: 500;
}

.panel-actions {
    display: flex;
    gap: 5px;
}

.btn-small {
    padding: 5px 8px;
    border: none;
    background: transparent;
    cursor: pointer;
    border-radius: 4px;
    transition: background-color var(--transition-speed);
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-small:hover {
    background-color: var(--border);
    color: var(--text-primary);
}

textarea {
    flex: 1;
    min-height: 200px;
    padding: 15px;
    border: none;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.9rem;
    resize: vertical;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

textarea:focus {
    outline: none;
}

textarea::placeholder {
    color: var(--text-secondary);
}

/* ==================== */
/* Action Buttons */
/* ==================== */

.action-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
    justify-content: center;
    padding: 10px 0;
}

.btn-action {
    padding: 12px 20px;
    border: 1px solid var(--border);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.9rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed);
    white-space: nowrap;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-action:hover {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

.btn-detect {
    background-color: var(--bg-tertiary);
}

/* ==================== */
/* Detection Result */
/* ==================== */

.detection-result {
    margin-top: 15px;
    padding: 12px 15px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.detection-label {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

#detected-encoding,
#qr-detected-encoding {
    color: var(--accent);
    font-weight: 600;
}

/* ==================== */
/* JWT Details */
/* ==================== */

.jwt-details {
    margin-top: 20px;
    padding: 15px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.jwt-details h3 {
    margin-bottom: 15px;
    font-size: 1rem;
    color: var(--text-primary);
}

.jwt-section {
    margin-bottom: 15px;
}

.jwt-section:last-child {
    margin-bottom: 0;
}

.jwt-section h4 {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-bottom: 8px;
}

.jwt-section pre {
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: 6px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* ==================== */
/* QR Section */
/* ==================== */

.qr-options {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.btn-qr {
    flex: 1;
    padding: 12px 20px;
    border: 1px solid var(--border);
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-size: 0.95rem;
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.btn-qr:hover {
    border-color: var(--accent);
}

.btn-qr.active {
    background-color: var(--accent);
    color: white;
    border-color: var(--accent);
}

.qr-container {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
}

#qr-reader {
    width: 100%;
    max-width: 400px;
    margin: 0 auto 20px;
}

#qr-reader video {
    border-radius: 8px;
}

.camera-controls {
    display: flex;
    justify-content: center;
    gap: 10px;
}

/* Drop Zone */
.drop-zone {
    border: 2px dashed var(--border);
    border-radius: 8px;
    padding: 40px 20px;
    text-align: center;
    transition: all var(--transition-speed);
}

.drop-zone:hover,
.drop-zone.drag-over {
    border-color: var(--accent);
    background-color: var(--bg-tertiary);
}

.drop-zone p {
    color: var(--text-secondary);
    margin-bottom: 10px;
}

.preview-image {
    max-width: 100%;
    max-height: 300px;
    margin-top: 20px;
    border-radius: 8px;
}

/* QR Result */
.qr-result {
    margin-top: 20px;
    padding: 15px;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 8px;
}

.qr-result h3 {
    margin-bottom: 15px;
    font-size: 1rem;
}

.qr-result-content {
    display: flex;
    align-items: flex-start;
    gap: 10px;
    margin-bottom: 15px;
}

.qr-result-content pre {
    flex: 1;
    padding: 12px;
    background-color: var(--bg-tertiary);
    border-radius: 6px;
    font-family: 'Consolas', 'Monaco', monospace;
    font-size: 0.85rem;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
    text-align: left;
}

.qr-result .detection-result {
    margin-top: 0;
    margin-bottom: 15px;
}

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

.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 24px;
    background-color: var(--accent);
    color: white;
    border-radius: 6px;
    font-size: 0.9rem;
    box-shadow: 0 4px 12px var(--shadow);
    z-index: 1000;
    transition: opacity 0.3s, transform 0.3s;
}

.toast.hidden {
    opacity: 0;
    transform: translateX(-50%) translateY(20px);
    pointer-events: none;
}

.toast.success {
    background-color: var(--success);
}

.toast.error {
    background-color: var(--error);
}

/* ==================== */
/* Footer */
/* ==================== */

footer {
    text-align: center;
    padding: 20px 0;
    margin-top: 40px;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* ==================== */
/* Modal */
/* ==================== */

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    opacity: 1;
    transition: opacity 0.3s;
}

.modal.hidden {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 12px;
    max-width: 400px;
    width: 90%;
    box-shadow: 0 10px 40px var(--shadow);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 15px 20px;
    border-bottom: 1px solid var(--border);
}

.modal-header h3 {
    font-size: 1.1rem;
    font-weight: 500;
}

.modal-body {
    padding: 30px;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-body canvas {
    border-radius: 8px;
    max-width: 100%;
}

.modal-footer {
    padding: 15px 20px;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: center;
}

/* ==================== */
/* Utilities */
/* ==================== */

.hidden {
    display: none !important;
}

/* Html5QrCode overrides */
#qr-reader__scan_region {
    background: var(--bg-tertiary) !important;
}

#qr-reader__dashboard_section_csr button {
    background-color: var(--accent) !important;
    border: none !important;
    color: white !important;
    padding: 10px 20px !important;
    border-radius: 6px !important;
}