:root {
    --bg-base: #0D1117;
    --bg-surface: #161B22;
    --bg-elevated: #21262D;

    --c-primary: #00CEC9;
    --c-primary-hover: #00b3af;
    --c-secondary: #636E72;
    --c-accent: #FF6B6B;

    --border: #30363D;

    --text-main: #E6EDF3;
    --text-muted: #8B949E;

    --radius: 8px;

    --font-ui: 'Inter', system-ui, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;

    /* Method Colors */
    --m-get: #45B06C;
    --m-post: #F2A900;
    --m-put: #00CEC9;
    --m-delete: #FF6B6B;
}

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

body {
    font-family: var(--font-ui);
    background: var(--bg-base);
    color: var(--text-main);
    display: flex;
    flex-direction: column;
    height: 100vh;
    overflow: hidden;
}

/* Utilities */
.text-muted {
    color: var(--text-muted);
}

.text-sm {
    font-size: 0.85rem;
}

.badge {
    background: var(--bg-elevated);
    padding: 0.2rem 0.5rem;
    border-radius: 99px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
}

/* Buttons & Inputs */
.btn {
    font-family: var(--font-ui);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    border-radius: var(--radius);
    cursor: pointer;
    transition: 0.2s;
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-sm {
    padding: 0.3rem 0.6rem;
    font-size: 0.8rem;
}

.btn-primary {
    background: var(--c-primary);
    color: #000;
    font-weight: 600;
}

.btn-primary:hover {
    background: var(--c-primary-hover);
}

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-main);
}

.btn-outline:hover {
    background: var(--bg-elevated);
    border-color: var(--text-muted);
}

.btn-icon {
    padding: 0.4rem;
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
}

.btn-icon:hover {
    color: var(--text-main);
}

.select-input {
    background: var(--bg-base);
    border: 1px solid var(--border);
    color: var(--text-main);
    padding: 0.4rem 0.6rem;
    border-radius: 6px;
    font-family: var(--font-ui);
    font-size: 0.85rem;
    outline: none;
}

.select-input:focus {
    border-color: var(--c-primary);
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 60px;
    padding: 0 1.5rem;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 600;
    color: var(--c-primary);
    font-size: 1.1rem;
}

.endpoint-bar {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex: 1;
    max-width: 600px;
    margin: 0 2rem;
}

.endpoint-url {
    display: flex;
    align-items: center;
    flex: 1;
    background: var(--bg-base);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.endpoint-url .method {
    background: var(--bg-elevated);
    padding: 0.5rem 0.75rem;
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--m-post);
    border-right: 1px solid var(--border);
}

.endpoint-url input {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 0.5rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    outline: none;
}

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

/* Layout */
.app-layout {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* Sidebar */
.sidebar {
    width: 320px;
    background: var(--bg-surface);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
}

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

.sidebar-header h3 {
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.request-list {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.request-list::-webkit-scrollbar {
    width: 6px;
}

.request-list::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 3px;
}

/* In-List Items */
.req-item {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    position: relative;
    overflow: hidden;
}

.req-item:hover {
    background: var(--bg-elevated);
}

.req-item.active {
    background: rgba(0, 206, 201, 0.1);
    border-left: 3px solid var(--c-primary);
}

.req-item.new-item {
    animation: flash-bg 1s ease-out;
}

@keyframes flash-bg {
    0% {
        background: rgba(0, 206, 201, 0.3);
    }

    100% {
        background: transparent;
    }
}

.req-item-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
}

.req-method {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: bold;
}

.req-method.POST {
    color: var(--m-post);
}

.req-method.PUT {
    color: var(--m-put);
}

.req-method.DELETE {
    color: var(--m-delete);
}

.req-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.req-item-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.req-path-sm {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 180px;
    color: var(--text-muted);
}

.req-status {
    font-family: var(--font-mono);
    font-size: 0.75rem;
    padding: 0.1rem 0.3rem;
    border-radius: 4px;
    background: rgba(255, 255, 255, 0.1);
}

.req-status.status-2xx {
    color: var(--m-get);
    background: rgba(69, 176, 108, 0.1);
}

.req-status.status-4xx,
.req-status.status-5xx {
    color: var(--c-accent);
    background: rgba(255, 107, 107, 0.1);
}

/* Main Content */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--bg-base);
    overflow: hidden;
}

.empty-state {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-muted);
    font-style: italic;
}

.request-detail {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

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

.detail-title {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.detail-title .req-method {
    font-size: 1.1rem;
}

.req-path {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    color: var(--text-main);
    word-break: break-all;
}

.detail-title .req-status {
    font-size: 0.9rem;
    padding: 0.2rem 0.5rem;
}

.detail-actions {
    display: flex;
    gap: 0.5rem;
}

.detail-meta {
    display: flex;
    gap: 2rem;
    padding: 1rem 1.5rem;
    background: var(--bg-surface);
    border-bottom: 1px solid var(--border);
    overflow-x: auto;
}

.meta-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    font-size: 0.85rem;
    font-family: var(--font-mono);
}

.meta-label {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    font-family: var(--font-ui);
    font-weight: 600;
}

/* Tabs */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    padding: 0 1rem;
    background: var(--bg-surface);
    gap: 0.5rem;
}

.tab {
    background: transparent;
    border: none;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.9rem;
    border-bottom: 2px solid transparent;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

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

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

.tab-content {
    display: none;
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

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

/* Code Body */
.code-header {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px dashed var(--border);
    display: flex;
    justify-content: space-between;
}

pre {
    background: var(--bg-surface);
    padding: 1rem;
    border-radius: var(--radius);
    border: 1px solid var(--border);
    overflow-x: auto;
    margin: 0;
}

code {
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

/* Data Tables */
.data-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-mono);
    font-size: 0.85rem;
}

.data-table th,
.data-table td {
    padding: 0.75rem 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

.data-table th {
    color: var(--text-muted);
    font-weight: 600;
    font-family: var(--font-ui);
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.05em;
    background: var(--bg-surface);
}

.data-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.data-table td:first-child {
    font-weight: 500;
    color: var(--c-primary);
    width: 30%;
    word-break: break-all;
}

.data-table td:last-child {
    color: var(--text-main);
    word-break: break-all;
}

/* Modal */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(2px);
}

.modal.show {
    display: flex;
}

.modal-content {
    background: var(--bg-surface);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 90%;
    max-width: 1000px;
    height: 80vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

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

.btn-close {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-muted);
    cursor: pointer;
}

.btn-close:hover {
    color: #FFF;
}

.compare-selectors {
    display: flex;
    gap: 1rem;
    padding: 1rem;
    border-bottom: 1px solid var(--border);
    background: var(--bg-base);
}

.compare-selectors .select-input {
    flex: 1;
}

.compare-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1px;
    flex: 1;
    background: var(--border);
    overflow: hidden;
}

.compare-col {
    background: var(--bg-base);
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.diff-header {
    padding: 0.75rem 1rem;
    background: var(--bg-elevated);
    font-family: var(--font-mono);
    font-size: 0.85rem;
    border-bottom: 1px solid var(--border);
    color: var(--text-muted);
}

.compare-col pre {
    flex: 1;
    overflow: auto;
    border: none;
    border-radius: 0;
    background: transparent;
    margin: 0;
    padding: 1rem;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translate(-50%, 100px);
    background: var(--c-primary);
    color: #000;
    padding: 0.75rem 1.5rem;
    border-radius: 99px;
    font-weight: 600;
    opacity: 0;
    transition: all 0.3s;
    z-index: 1000;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.toast.show {
    transform: translate(-50%, 0);
    opacity: 1;
}

/* Diff Highlights */
.diff-add {
    background: rgba(0, 206, 201, 0.2);
    color: var(--c-primary);
}

.diff-remove {
    background: rgba(255, 107, 107, 0.2);
    text-decoration: line-through;
    color: var(--c-accent);
}