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

:root {
    --bg-primary: #1a1a2e;
    --bg-secondary: #16213e;
    --bg-tertiary: #0f3460;
    --bg-card: #1e2745;
    --text-primary: #e8e8e8;
    --text-secondary: #a0a0b8;
    --text-muted: #6c6c80;
    --accent: #e94560;
    --accent-hover: #ff6b81;
    --success: #2ecc71;
    --warning: #f39c12;
    --error: #e74c3c;
    --info: #3498db;
    --border: #2a2a4a;
    --input-bg: #12122a;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
    --radius: 8px;

    --get: #61affe;
    --post: #49cc90;
    --put: #fca130;
    --delete: #f93e3e;
    --patch: #50e3c2;
}

body {
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

header {
    background: var(--bg-secondary);
    border-bottom: 1px solid var(--border);
    padding: 12px 24px;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1800px;
    margin: 0 auto;
    gap: 20px;
    flex-wrap: wrap;
}

header h1 {
    font-size: 1.4rem;
    color: var(--accent);
    white-space: nowrap;
}

.server-config {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.server-config label {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.server-config input {
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: var(--radius);
    font-size: 0.85rem;
    width: 260px;
}

.server-config input:focus {
    outline: none;
    border-color: var(--accent);
}

#btnConnect {
    background: var(--accent);
    color: white;
    border: none;
    padding: 8px 20px;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 600;
    font-size: 0.85rem;
    transition: background 0.2s;
}

#btnConnect:hover {
    background: var(--accent-hover);
}

.status-badge {
    font-size: 0.75rem;
    padding: 4px 12px;
    border-radius: 20px;
    font-weight: 600;
}

.status-badge.connected {
    background: rgba(46, 204, 113, 0.15);
    color: var(--success);
    border: 1px solid var(--success);
}

.status-badge.disconnected {
    background: rgba(231, 76, 60, 0.15);
    color: var(--error);
    border: 1px solid var(--error);
}

main {
    display: flex;
    max-width: 1800px;
    margin: 0 auto;
    height: calc(100vh - 60px);
}

/* Sidebar */
.sidebar {
    width: 300px;
    min-width: 300px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    padding: 16px;
}

.sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
}

.sidebar-header h2 {
    font-size: 1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.btn-refresh {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    width: 30px;
    height: 30px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

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

.endpoint-list {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.endpoint-group {
    margin-bottom: 12px;
}

.endpoint-group-title {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    padding: 8px 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 6px;
    font-weight: 700;
}

.endpoint-item {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 10px;
    border-radius: var(--radius);
    cursor: pointer;
    transition: background 0.15s;
    font-size: 0.82rem;
}

.endpoint-item:hover {
    background: var(--bg-tertiary);
}

.endpoint-item.active {
    background: var(--bg-tertiary);
    border-left: 3px solid var(--accent);
}

.endpoint-item .method {
    font-size: 0.65rem;
    font-weight: 800;
    padding: 2px 6px;
    border-radius: 4px;
    min-width: 46px;
    text-align: center;
    text-transform: uppercase;
}

.method-get { background: rgba(97, 175, 254, 0.15); color: var(--get); }
.method-post { background: rgba(73, 204, 144, 0.15); color: var(--post); }
.method-put { background: rgba(252, 161, 48, 0.15); color: var(--put); }
.method-delete { background: rgba(249, 62, 62, 0.15); color: var(--delete); }
.method-patch { background: rgba(80, 227, 194, 0.15); color: var(--patch); }

.endpoint-item .path {
    color: var(--text-primary);
    word-break: break-all;
    font-family: 'Fira Code', 'Consolas', monospace;
}

/* Workspace */
.workspace {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.request-panel {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    overflow-y: auto;
    max-height: 55%;
}

.panel-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 8px;
}

.panel-header h2 {
    font-size: 1.1rem;
}

.description {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-bottom: 12px;
}

/* URL Bar */
.url-bar {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    align-items: center;
}

.method-badge {
    padding: 8px 14px;
    border-radius: var(--radius);
    font-weight: 800;
    font-size: 0.8rem;
    min-width: 70px;
    text-align: center;
}

.method-badge.GET { background: rgba(97, 175, 254, 0.2); color: var(--get); }
.method-badge.POST { background: rgba(73, 204, 144, 0.2); color: var(--post); }
.method-badge.PUT { background: rgba(252, 161, 48, 0.2); color: var(--put); }
.method-badge.DELETE { background: rgba(249, 62, 62, 0.2); color: var(--delete); }
.method-badge.PATCH { background: rgba(80, 227, 194, 0.2); color: var(--patch); }

.url-input {
    flex: 1;
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 14px;
    border-radius: var(--radius);
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.85rem;
}

.btn-send {
    background: var(--accent);
    color: white;
    border: none;
    padding: 8px 28px;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 700;
    font-size: 0.9rem;
    transition: background 0.2s;
    white-space: nowrap;
}

.btn-send:hover {
    background: var(--accent-hover);
}

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

/* Tabs */
.tabs {
    display: flex;
    gap: 0;
    border-bottom: 1px solid var(--border);
    margin-bottom: 16px;
}

.tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 10px 20px;
    cursor: pointer;
    font-size: 0.85rem;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
}

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

.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-content {
    display: none;
}

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

/* Parameters */
.param-section {
    margin-bottom: 16px;
}

.param-section h3 {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 10px;
}

.param-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
    align-items: center;
}

.param-row input, .param-row select {
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--radius);
    font-size: 0.82rem;
}

.param-row input:focus, .param-row select:focus {
    outline: none;
    border-color: var(--accent);
}

.param-row .param-name {
    min-width: 150px;
    font-family: 'Fira Code', 'Consolas', monospace;
    font-weight: 600;
    color: var(--info);
    background: transparent;
    border: none;
    padding: 8px 0;
}

.param-row .param-value {
    flex: 1;
}

.param-row .param-required {
    color: var(--error);
    font-size: 0.7rem;
    font-weight: 700;
}

.param-row .param-type {
    color: var(--text-muted);
    font-size: 0.7rem;
    min-width: 60px;
}

.no-params {
    color: var(--text-muted);
    text-align: center;
    padding: 20px;
    font-size: 0.85rem;
}

.btn-remove {
    background: rgba(249, 62, 62, 0.1);
    border: 1px solid transparent;
    color: var(--error);
    width: 30px;
    height: 30px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}

.btn-remove:hover {
    background: rgba(249, 62, 62, 0.25);
    border-color: var(--error);
}

/* Body Editor */
.body-type-selector {
    display: flex;
    gap: 16px;
    margin-bottom: 12px;
}

.body-type-selector label {
    color: var(--text-secondary);
    font-size: 0.85rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 6px;
}

.body-type-selector input[type="radio"] {
    accent-color: var(--accent);
}

.body-editor textarea {
    width: 100%;
    min-height: 150px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 14px;
    border-radius: var(--radius);
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.85rem;
    resize: vertical;
    line-height: 1.5;
}

.body-editor textarea:focus {
    outline: none;
    border-color: var(--accent);
}

.btn-add-field {
    background: none;
    border: 1px dashed var(--border);
    color: var(--text-secondary);
    padding: 6px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.82rem;
    transition: all 0.2s;
    margin-top: 8px;
}

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

/* File Upload */
.file-upload-area {
    border: 2px dashed var(--border);
    border-radius: var(--radius);
    padding: 30px;
    text-align: center;
    position: relative;
    cursor: pointer;
    transition: all 0.2s;
}

.file-upload-area:hover {
    border-color: var(--accent);
}

.file-upload-area input[type="file"] {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.file-upload-area p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.file-list {
    margin-top: 10px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.file-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--bg-tertiary);
    padding: 6px 12px;
    border-radius: var(--radius);
    font-size: 0.8rem;
}

.file-item .file-name {
    color: var(--info);
}

.file-item .file-size {
    color: var(--text-muted);
}

/* Headers */
.header-key, .header-value {
    flex: 1;
}

/* Response Panel */
.response-panel {
    flex: 1;
    padding: 20px 24px;
    overflow-y: auto;
    background: var(--bg-primary);
}

.response-info {
    display: flex;
    gap: 16px;
    align-items: center;
}

.status-code {
    padding: 4px 12px;
    border-radius: 4px;
    font-weight: 700;
    font-size: 0.82rem;
}

.status-code.success {
    background: rgba(46, 204, 113, 0.15);
    color: var(--success);
}

.status-code.error {
    background: rgba(231, 76, 60, 0.15);
    color: var(--error);
}

.status-code.warning {
    background: rgba(243, 156, 18, 0.15);
    color: var(--warning);
}

.response-time, .response-size {
    color: var(--text-muted);
    font-size: 0.78rem;
}

.response-content {
    background: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    margin-top: 12px;
    overflow-x: auto;
    max-height: calc(100% - 60px);
    overflow-y: auto;
}

.response-content pre {
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.82rem;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.image-preview {
    margin-top: 12px;
    text-align: center;
}

.image-preview img {
    max-width: 100%;
    max-height: 400px;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.placeholder-text {
    color: var(--text-muted);
    text-align: center;
    padding: 40px;
    font-size: 0.9rem;
}

/* JSON Syntax */
.json-key { color: #e06c75; }
.json-string { color: #98c379; }
.json-number { color: #d19a66; }
.json-boolean { color: #c678dd; }
.json-null { color: #abb2bf; }

/* Toast */
.toast {
    position: fixed;
    bottom: 30px;
    right: 30px;
    padding: 12px 24px;
    border-radius: var(--radius);
    font-size: 0.85rem;
    font-weight: 600;
    z-index: 1000;
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

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

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

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

/* Loading */
.loading-spinner {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
    margin-right: 8px;
    vertical-align: middle;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Schema viewer */
.schema-section {
    margin-top: 12px;
    padding: 12px;
    background: var(--bg-card);
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

.schema-section h4 {
    font-size: 0.78rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.schema-section pre {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-family: 'Fira Code', 'Consolas', monospace;
}

/* Auth Section */
.auth-section {
    border-bottom: 1px solid var(--border);
    padding-bottom: 16px;
    margin-bottom: 16px;
}

.auth-badge {
    font-size: 0.68rem;
    padding: 3px 10px;
    border-radius: 20px;
    font-weight: 600;
}

.auth-badge.no-auth {
    background: rgba(108, 108, 128, 0.15);
    color: var(--text-muted);
    border: 1px solid var(--text-muted);
}

.auth-badge.authenticated {
    background: rgba(46, 204, 113, 0.15);
    color: var(--success);
    border: 1px solid var(--success);
}

.auth-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.auth-login-form {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.auth-input {
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 7px 10px;
    border-radius: var(--radius);
    font-size: 0.8rem;
    width: 100%;
}

.auth-input:focus {
    outline: none;
    border-color: var(--accent);
}

.auth-input.auth-url {
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.72rem;
    color: var(--text-secondary);
}

.btn-login {
    background: var(--post);
    color: white;
    border: none;
    padding: 7px 16px;
    border-radius: var(--radius);
    cursor: pointer;
    font-weight: 700;
    font-size: 0.8rem;
    transition: opacity 0.2s;
}

.btn-login:hover {
    opacity: 0.85;
}

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

.auth-token-section {
    border-top: 1px solid var(--border);
    padding-top: 10px;
}

.auth-label {
    color: var(--text-muted);
    font-size: 0.72rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: block;
    margin-bottom: 4px;
}

.auth-token-input {
    width: 100%;
    min-height: 50px;
    background: var(--input-bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px;
    border-radius: var(--radius);
    font-family: 'Fira Code', 'Consolas', monospace;
    font-size: 0.7rem;
    resize: vertical;
    line-height: 1.4;
}

.auth-token-input:focus {
    outline: none;
    border-color: var(--accent);
}

.auth-actions {
    display: flex;
    gap: 6px;
    margin-top: 6px;
}

.btn-apply-token {
    background: var(--info);
    color: white;
    border: none;
    padding: 5px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.75rem;
    font-weight: 600;
    transition: opacity 0.2s;
    flex: 1;
}

.btn-apply-token:hover {
    opacity: 0.85;
}

.btn-clear-token {
    background: none;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 5px 12px;
    border-radius: var(--radius);
    cursor: pointer;
    font-size: 0.75rem;
    transition: all 0.2s;
}

.btn-clear-token:hover {
    border-color: var(--error);
    color: var(--error);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Responsive */
@media (max-width: 900px) {
    main {
        flex-direction: column;
        height: auto;
    }

    .sidebar {
        width: 100%;
        min-width: unset;
        max-height: 250px;
        border-right: none;
        border-bottom: 1px solid var(--border);
    }

    .request-panel {
        max-height: unset;
    }

    .header-content {
        flex-direction: column;
        align-items: stretch;
    }

    .server-config {
        width: 100%;
    }

    .server-config input {
        flex: 1;
        width: auto;
        min-width: 0;
    }

    .workspace {
        flex-direction: column;
    }

    .url-bar {
        flex-wrap: wrap;
    }

    .url-input {
        min-width: 0;
        width: 100%;
    }

    .tabs {
        flex-wrap: wrap;
    }
}