@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600&display=swap');

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

html {
    scroll-behavior: smooth;
}

:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #0f0f0f;
    --bg-tertiary: #1a1a1a;
    --text-primary: #ffffff;
    --text-secondary: #999999;
    --accent-color: #ffffff;
    --accent-hover: #cccccc;
    --border-color: #2a2a2a;
    --nav-bg: #0a0a0a;
    --shadow: rgba(0, 0, 0, 0.3);
}

[data-theme="light"] {
    --bg-primary: #ffffff;
    --bg-secondary: #fafafa;
    --bg-tertiary: #f5f5f5;
    --text-primary: #171717;
    --text-secondary: #666666;
    --accent-color: #171717;
    --accent-hover: #000000;
    --border-color: #e5e5e5;
    --nav-bg: #ffffff;
    --shadow: rgba(0, 0, 0, 0.08);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 0;
    font-size: 15px;
    font-weight: 400;
    line-height: 1.6;
    transition: background 0.2s ease, color 0.2s ease;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navigation Bar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--nav-bg);
    border-bottom: 1px solid var(--border-color);
    z-index: 1000;
    padding: 0 0px;
    height: 60px;
}

.nav-container {
    max-width: 1440px;
    margin: 0 auto;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-left {
    display: flex;
    align-items: center;
    height: 100%;
}

.nav-item {
    display: flex;
    align-items: center;
    justify-content: center;
    height: 100%;
    padding: 0 20px;
    background: transparent;
    border: none;
    border-right: 1px solid var(--border-color);
    color: var(--text-secondary);
    text-decoration: none;
    transition: all 0.15s ease;
    cursor: pointer;
}

.nav-item svg {
    transition: all 0.15s ease;
}

.nav-item:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.nav-item.active {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--text-primary);
}

.nav-right {
    display: flex;
    align-items: center;
    height: 100%;
}

.theme-toggle {
    height: 100%;
    padding: 0 20px;
    background: transparent;
    border: none;
    border-left: 1px solid var(--border-color);
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.15s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.theme-toggle svg {
    transition: all 0.15s ease;
}

.theme-toggle:hover {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

/* Main Content */
.main-content {
    margin-top: 60px;
    padding: 60px 32px;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
}

/* Page Content */
.page-content {
    display: none;
    opacity: 0;
    transition: opacity 0.2s ease;
}

.page-content.active {
    display: block;
    animation: fadeIn 0.2s ease forwards;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

h1 {
    color: var(--text-primary);
    margin-bottom: 48px;
    font-size: 48px;
    font-weight: 600;
    letter-spacing: -0.02em;
    line-height: 1.1;
}

.test-section {
    margin-bottom: 48px;
    padding: 0;
    background: transparent;
    border: none;
    transition: none;
}

.test-section:hover {
    background: transparent;
    box-shadow: none;
}

.test-section h2 {
    color: var(--text-primary);
    margin-bottom: 20px;
    font-size: 20px;
    font-weight: 600;
    letter-spacing: -0.01em;
}

.test-section h3 {
    color: var(--text-primary);
    margin: 24px 0 12px 0;
    font-size: 16px;
    font-weight: 600;
}

.test-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
}

.btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    padding: 8px 16px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    text-decoration: none;
    display: inline-block;
    transition: all 0.15s ease;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
}

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

.btn:active {
    background: var(--bg-secondary);
}

.file-input {
    display: none;
}

.input-field {
    width: 100%;
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    font-size: 14px;
    background: var(--bg-secondary);
    color: var(--text-primary);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    transition: all 0.15s;
}

.input-field:focus {
    outline: none;
    border-color: var(--text-primary);
    background: var(--bg-tertiary);
}

.input-field::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

.form-group {
    margin-bottom: 16px;
}

/* Divider */
.test-section + .test-section {
    padding-top: 48px;
    border-top: 1px solid var(--border-color);
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 13px;
}

.info {
    margin-top: 16px;
    padding: 16px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    font-family: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Consolas', 'Courier New', monospace;
    font-size: 13px;
    line-height: 1.6;
    white-space: pre-wrap;
    word-break: break-word;
}

.media-container {
    margin: 16px 0;
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.media-container iframe,
.media-container video {
    max-width: 100%;
    display: block;
}

audio {
    width: 100%;
    margin: 12px 0;
}

video {
    max-width: 100%;
    width: 100%;
    height: auto;
}

#cameraVideo {
    width: 100%;
    max-width: 640px;
    background: #000;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}

table th,
table td {
    padding: 12px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

table th {
    background-color: transparent;
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

table td {
    color: var(--text-primary);
}

/* Data Tables */
.data-table {
    border: 1px solid var(--border-color);
}

.data-table td:first-child {
    font-weight: 600;
    color: var(--text-secondary);
    width: 200px;
    font-size: 13px;
}

.data-table td:last-child {
    font-family: 'JetBrains Mono', 'SF Mono', 'Monaco', 'Consolas', monospace;
    font-size: 13px;
    word-break: break-all;
}

.data-table tr:last-child td {
    border-bottom: none;
}

.loading-cell {
    color: var(--text-secondary);
    font-style: italic;
}

::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

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

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

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

::selection {
    background: var(--text-primary);
    color: var(--bg-primary);
}


@media (max-width: 768px) {
    .navbar {
        padding: 0 0px;
    }

    .main-content {
        padding: 40px 20px;
    }

    h1 {
        font-size: 32px;
        margin-bottom: 32px;
    }

    .test-section {
        margin-bottom: 32px;
    }

    .test-section h2 {
        font-size: 18px;
    }

    .test-buttons {
        gap: 6px;
    }

    .btn {
        width: 100%;
        text-align: center;
    }

    .media-container iframe {
        height: 200px;
    }

    .data-table td:first-child {
        width: 120px;
        font-size: 12px;
    }

    .data-table td:last-child {
        font-size: 12px;
    }
}