/* ===== CSS Variables & Reset ===== */
:root {
    /* Color Palette */
    --primary-hue: 250;
    --primary-sat: 85%;
    --primary-light: 60%;

    --primary-color: hsl(var(--primary-hue), var(--primary-sat), var(--primary-light));
    --primary-dark: hsl(var(--primary-hue), var(--primary-sat), 45%);
    --primary-light-bg: hsl(var(--primary-hue), var(--primary-sat), 95%);

    --accent-color: hsl(330, 85%, 60%);
    --success-color: hsl(145, 70%, 50%);
    --warning-color: hsl(45, 95%, 55%);
    --error-color: hsl(0, 85%, 60%);

    --bg-primary: hsl(240, 15%, 8%);
    --bg-secondary: hsl(240, 12%, 12%);
    --bg-tertiary: hsl(240, 10%, 16%);

    --text-primary: hsl(0, 0%, 95%);
    --text-secondary: hsl(0, 0%, 70%);
    --text-tertiary: hsl(0, 0%, 50%);

    --border-color: hsl(240, 10%, 20%);
    --border-light: hsl(240, 8%, 25%);

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 0.75rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1rem;
    --radius-xl: 1.5rem;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(var(--primary-hue), var(--primary-sat), var(--primary-light), 0.3);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 400ms ease;
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
    min-height: 100vh;
}

/* ===== Background Effects ===== */
.background-gradient {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background:
        radial-gradient(circle at 20% 20%, hsla(var(--primary-hue), 80%, 50%, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, hsla(330, 80%, 50%, 0.15) 0%, transparent 50%),
        radial-gradient(circle at 50% 50%, hsla(200, 80%, 50%, 0.1) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
    animation: gradientShift 20s ease infinite;
}

@keyframes gradientShift {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.8;
    }
}

.background-pattern {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
    background-size: 50px 50px;
    pointer-events: none;
    z-index: 0;
}

/* ===== Container ===== */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

/* ===== Header ===== */
.header {
    margin-bottom: var(--spacing-2xl);
    animation: slideDown 0.6s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-lg);
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.05) 0%, rgba(255, 255, 255, 0.02) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-glow);
    animation: pulse 2s ease infinite;
}

@keyframes pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.05);
    }
}

.logo-icon svg {
    width: 28px;
    height: 28px;
    color: white;
}

.header h1 {
    font-size: 1.75rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-color), var(--accent-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.subtitle {
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-weight: 400;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--success-color);
    border-radius: 50%;
    animation: blink 2s ease infinite;
}

@keyframes blink {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ===== Cards ===== */
.card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.08) 0%, rgba(255, 255, 255, 0.03) 100%);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-xl);
    backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    transition: all var(--transition-base);
    animation: fadeInUp 0.6s ease;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.card:hover {
    border-color: var(--border-light);
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
}

.card h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: var(--text-primary);
}

.card h2 svg {
    width: 24px;
    height: 24px;
    color: var(--primary-color);
}

.category-title {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    padding-left: var(--spacing-xs);
    border-left: 3px solid var(--primary-color);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.category-title:first-of-type {
    margin-top: 0;
}

/* ===== Endpoint Grid ===== */
.endpoint-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.endpoint-btn {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.endpoint-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
    transition: left var(--transition-slow);
}

.endpoint-btn:hover::before {
    left: 100%;
}

.endpoint-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-color);
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
}

.endpoint-btn.active {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-color: var(--primary-color);
    box-shadow: var(--shadow-glow);
}

.method-badge {
    padding: 0.25rem 0.5rem;
    border-radius: var(--radius-sm);
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.method-badge.post {
    background: linear-gradient(135deg, var(--success-color), hsl(145, 70%, 40%));
    color: white;
}

.endpoint-name {
    flex: 1;
    text-align: left;
}

/* ===== Config Section ===== */
.config-section {
    margin-bottom: var(--spacing-lg);
}

.config-section label {
    display: block;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.config-section input[type="text"] {
    width: 100%;
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: 'JetBrains Mono', monospace;
    transition: all var(--transition-base);
}

.config-section input[type="text"]:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-hue), var(--primary-sat), var(--primary-light), 0.2);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.code-editor-wrapper {
    position: relative;
}

.code-editor-wrapper textarea {
    width: 100%;
    min-height: 300px;
    padding: var(--spacing-md);
    padding-left: 3.5rem;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: 'JetBrains Mono', monospace;
    line-height: 1.6;
    resize: vertical;
    transition: all var(--transition-base);
}

.code-editor-wrapper textarea:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(var(--primary-hue), var(--primary-sat), var(--primary-light), 0.2);
}

.line-numbers {
    position: absolute;
    left: 0;
    top: 0;
    padding: var(--spacing-md) var(--spacing-sm);
    color: var(--text-tertiary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.9rem;
    line-height: 1.6;
    user-select: none;
    pointer-events: none;
    text-align: right;
    width: 3rem;
    border-right: 1px solid var(--border-color);
}

/* ===== Buttons ===== */
.action-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.btn-primary,
.btn-secondary {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-md) var(--spacing-xl);
    border: none;
    border-radius: var(--radius-md);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    color: white;
    box-shadow: var(--shadow-md);
}

.btn-primary::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width var(--transition-slow), height var(--transition-slow);
}

.btn-primary:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: var(--border-light);
}

.btn-small {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.btn-primary svg,
.btn-secondary svg {
    width: 18px;
    height: 18px;
    position: relative;
    z-index: 1;
}

/* ===== Response Section ===== */
.response-section {
    animation-delay: 0.2s;
}

.response-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.response-meta {
    display: flex;
    gap: var(--spacing-md);
}

.status-badge {
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    font-weight: 600;
}

.status-badge.success {
    background: linear-gradient(135deg, var(--success-color), hsl(145, 70%, 40%));
    color: white;
}

.status-badge.error {
    background: linear-gradient(135deg, var(--error-color), hsl(0, 85%, 50%));
    color: white;
}

.time-badge {
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    font-size: 0.875rem;
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', monospace;
}

/* ===== Tabs ===== */
.response-tabs {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--border-color);
}

.tab-btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

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

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

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

/* ===== Code Viewer ===== */
.code-viewer {
    position: relative;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.code-viewer pre {
    padding: var(--spacing-lg);
    margin: 0;
    overflow-x: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.6;
    color: var(--text-primary);
}

.copy-btn {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 0.875rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: var(--spacing-xs);
    transition: all var(--transition-base);
}

.copy-btn:hover {
    background: rgba(255, 255, 255, 0.2);
}

.copy-btn svg {
    width: 16px;
    height: 16px;
}

/* ===== Loading Overlay ===== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(10px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.loading-overlay.active {
    display: flex;
}

.loading-spinner {
    text-align: center;
}

.spinner {
    width: 60px;
    height: 60px;
    margin: 0 auto var(--spacing-lg);
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

.loading-spinner p {
    color: var(--text-secondary);
    font-size: 1rem;
}

/* ===== Footer ===== */
.footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    color: var(--text-tertiary);
    font-size: 0.875rem;
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--primary-color);
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .container {
        padding: var(--spacing-md);
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
        text-align: center;
    }

    .endpoint-grid {
        grid-template-columns: 1fr;
    }

    .action-buttons {
        flex-direction: column;
    }

    .btn-primary,
    .btn-secondary {
        width: 100%;
        justify-content: center;
    }

    .response-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-md);
    }
}