/* Custom Reset & Variable Definition */
:root {
    --bg-primary: #090d16;
    --bg-secondary: #111827;
    --bg-tertiary: #1f2937;
    --bg-card: rgba(17, 24, 39, 0.7);
    --border-color: rgba(255, 255, 255, 0.08);
    --border-hover: rgba(99, 102, 241, 0.3);
    
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-glow: rgba(99, 102, 241, 0.25);
    
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --text-muted: #6b7280;

    --green-500: #10b981;
    --green-glow: rgba(16, 185, 129, 0.2);
    --blue-500: #06b6d4;
    --purple-500: #a855f7;
    
    --sidebar-width: 260px;
    --header-height: 70px;
    
    --font-heading: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
    
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 16px;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.3), 0 2px 4px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 25px -5px rgba(0, 0, 0, 0.5), 0 8px 10px -6px rgba(0, 0, 0, 0.4);
}

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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

/* Main Layout */
.app-container {
    display: flex;
    min-height: 100vh;
    position: relative;
}

/* Sidebar Drawer */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 100;
    position: fixed;
    top: 0;
    bottom: 0;
    left: 0;
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(4px);
    z-index: 90;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.sidebar-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.sidebar-top {
    height: var(--header-height);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.25rem;
    border-bottom: 1px solid var(--border-color);
}

.brand {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.brand-icon {
    width: 32px;
    height: 32px;
    color: var(--accent);
}

.brand-logo {
    width: 100%;
    height: 100%;
}

.brand-name {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.brand-badge {
    font-size: 0.65rem;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
    background-color: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.burger-close-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.75rem;
    cursor: pointer;
    line-height: 1;
}

.sidebar-nav {
    flex-grow: 1;
    padding: 1.5rem 0.75rem;
    overflow-y: auto;
}

.nav-section-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-muted);
    padding: 0.5rem 0.75rem;
    margin-top: 0.75rem;
}

.sidebar-nav ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.65rem 0.85rem;
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.nav-icon {
    width: 18px;
    height: 18px;
    transition: transform 0.2s ease;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.04);
}

.nav-link:hover .nav-icon {
    transform: translateX(2px);
}

.nav-link.active {
    color: #fff;
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    box-shadow: 0 4px 12px var(--accent-glow);
}

.sidebar-footer {
    padding: 1rem 1.25rem;
    border-top: 1px solid var(--border-color);
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-muted);
}

.status-dot.online {
    background-color: var(--green-500);
    box-shadow: 0 0 8px var(--green-glow);
}

/* Main Content Workspace */
.main-content {
    flex-grow: 1;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    display: flex;
    flex-direction: flex-direction;
    flex-direction: column;
    width: calc(100% - var(--sidebar-width));
}

.app-header {
    height: var(--header-height);
    background: rgba(17, 24, 39, 0.8);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    position: sticky;
    top: 0;
    z-index: 50;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.burger-open-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    display: none;
    padding: 4px;
    border-radius: var(--radius-sm);
}

.header-left h1 {
    font-size: 1.4rem;
    font-weight: 700;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.server-badge {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 0.35rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    font-family: var(--font-mono);
}

.pulse-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background-color: var(--green-500);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0.7); }
    70% { transform: scale(1); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0); }
    100% { transform: scale(0.95); box-shadow: 0 0 0 0 rgba(16, 185, 129, 0); }
}

.content-body {
    padding: 2rem;
    flex-grow: 1;
}

.app-view {
    display: none;
    animation: fadeIn 0.3s ease;
}

.app-view.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(6px); }
    to { opacity: 1; transform: translateY(0); }
}

/* UI Elements: Hero & Banner */
.hero-banner {
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15) 0%, rgba(16, 185, 129, 0.05) 100%);
    border: 1px solid var(--border-hover);
    border-radius: var(--radius-lg);
    padding: 2rem;
    margin-bottom: 2rem;
    position: relative;
    overflow: hidden;
}

.hero-banner::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content h2 {
    font-size: 1.8rem;
    margin: 0.5rem 0;
}

.hero-content p {
    color: var(--text-secondary);
    max-width: 600px;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.badge-accent {
    background-color: var(--accent-glow);
    color: #818cf8;
    border: 1px solid rgba(99, 102, 241, 0.4);
}

/* Metrics Grid */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.metric-card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 1.25rem;
    transition: transform 0.2s ease, border-color 0.2s ease;
}

.metric-card:hover {
    transform: translateY(-2px);
    border-color: var(--border-hover);
}

.metric-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 0.75rem;
}

.metric-title {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.metric-icon {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--bg-tertiary);
}

.metric-icon svg {
    width: 18px;
    height: 18px;
}

.metric-icon.green { color: var(--green-500); }
.metric-icon.blue { color: var(--blue-500); }
.metric-icon.purple { color: var(--purple-500); }

.metric-value {
    font-family: var(--font-heading);
    font-size: 1.8rem;
    font-weight: 700;
    line-height: 1.2;
    margin-bottom: 0.25rem;
}

.metric-value.small {
    font-size: 1.2rem;
}

.metric-value.green {
    color: var(--green-500);
}

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

/* Cards & Components */
.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-md);
}

.card-header {
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.card-header.space-between {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-subtitle {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-top: 2px;
}

.card-body {
    padding: 1.5rem;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-md);
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s ease;
}

.btn-sm {
    padding: 0.4rem 0.85rem;
    font-size: 0.8rem;
}

.btn-xs {
    padding: 0.25rem 0.6rem;
    font-size: 0.75rem;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-hover) 100%);
    color: #fff;
    box-shadow: 0 4px 12px var(--accent-glow);
}

.btn-primary:hover {
    opacity: 0.95;
    transform: translateY(-1px);
}

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

.btn-secondary:hover {
    background-color: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.2);
}

.action-buttons {
    display: flex;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

/* Terminal Console Box */
.terminal-box {
    background-color: #04070d;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.terminal-box.margin-top {
    margin-top: 1.5rem;
}

.terminal-header {
    background-color: rgba(255, 255, 255, 0.03);
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    font-family: var(--font-mono);
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-color);
}

.terminal-body {
    padding: 1rem;
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: #38bdf8;
    white-space: pre-wrap;
    word-break: break-all;
    max-height: 250px;
    overflow-y: auto;
}

/* Forms & Inputs */
.form-container {
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    padding: 1.25rem;
    border-radius: var(--radius-md);
    margin-bottom: 1.5rem;

    animation: slideDown 0.2s ease;
}

.form-container.hidden {
    display: none;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-8px); }
    to { opacity: 1; transform: translateY(0); }
}

.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 0.35rem;
}

.form-input {
    width: 100%;
    padding: 0.6rem 0.85rem;
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-family: var(--font-body);
    font-size: 0.9rem;
}

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

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

/* Data Table */
.table-container {
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.9rem;
    text-align: left;
}

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

.data-table th {
    background-color: rgba(255, 255, 255, 0.02);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 0.8rem;
    text-transform: uppercase;
}

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

/* Endpoint List */
.endpoint-list {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.endpoint-item {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.75rem 1rem;
    background-color: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
}

.method-tag {
    font-family: var(--font-mono);
    font-size: 0.7rem;
    font-weight: 700;
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

.method-tag.get { background-color: rgba(16, 185, 129, 0.15); color: var(--green-500); }
.method-tag.post { background-color: rgba(99, 102, 241, 0.15); color: #818cf8; }

.endpoint-path {
    font-family: var(--font-mono);
    font-size: 0.85rem;
    color: var(--text-primary);
}

.endpoint-desc {
    font-size: 0.8rem;
    color: var(--text-secondary);
    flex-grow: 1;
}

/* Info Grid */
.info-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.25rem;
}

.info-item {
    background-color: var(--bg-tertiary);
    padding: 1rem;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-color);
}

.info-item label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    display: block;
    margin-bottom: 0.25rem;
}

.info-val {
    font-weight: 600;
    color: var(--text-primary);
}

/* Toast Notifications */
.toast-container {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 200;
}

.toast {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.75rem 1.25rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: toastIn 0.3s ease;
}

.toast.success { border-left: 4px solid var(--green-500); }
.toast.error { border-left: 4px solid #ef4444; }

@keyframes toastIn {
    from { opacity: 0; transform: translateX(20px); }
    to { opacity: 1; transform: translateX(0); }
}

/* Responsive Styles for Mobile & Desktop */
@media (max-width: 992px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }

    .burger-close-btn {
        display: block;
    }

    .main-content {
        margin-left: 0;
        width: 100%;
    }

    .burger-open-btn {
        display: block;
    }
}

@media (max-width: 600px) {
    .content-body {
        padding: 1rem;
    }
    .app-header {
        padding: 0 1rem;
    }
    .metrics-grid {
        grid-template-columns: 1fr;
    }
}