@import url('https://fonts.googleapis.com/css2?family=Archivo:wght@300;400;600;700&display=swap');

:root {
    /* KBD Brand Colors */
    --bg-dark: #0f172a;
    --bg-panel: rgba(32, 34, 35, 0.7); /* Obsidian Black */
    --accent-primary: #81C111; /* Chartreuse Green */
    --accent-hover: #9BE415;
    --accent-success: #81C111;
    --accent-warning: #f59e0b;
    --text-main: #FFFFFF; /* Pure White */
    --text-muted: #817A7A; /* Smoke Gray */
    --border-color: rgba(255, 255, 255, 0.1);
    --glass-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    --glass-blur: blur(16px);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Archivo', sans-serif;
}

body {
    background-color: #111; /* Fallback */
    background-image: 
        radial-gradient(at 0% 0%, rgba(32, 34, 35, 1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(129, 193, 17, 0.15) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(32, 34, 35, 1) 0px, transparent 50%),
        radial-gradient(at 0% 100%, rgba(129, 193, 17, 0.1) 0px, transparent 50%);
    background-attachment: fixed;
    color: var(--text-main);
    min-height: 100vh;
    overflow-x: hidden;
}

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    border-right: 1px solid var(--border-color);
    padding: 2rem 1rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 10;
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 3rem;
    padding: 0 1rem;
}

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

.logo-text {
    font-size: 1.2rem;
    font-weight: 700;
    line-height: 1.2;
    background: linear-gradient(90deg, #fff, #94a3b8);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    color: var(--text-muted);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.3s ease;
    font-weight: 600;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    transform: translateX(4px);
}

.nav-item.active {
    background: linear-gradient(90deg, rgba(59, 130, 246, 0.2), transparent);
    color: var(--accent-primary);
    border-left: 3px solid var(--accent-primary);
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 260px;
    padding: 2rem 3rem;
}

.hidden {
    display: none !important;
}

.section-header {
    margin-bottom: 2rem;
}

.section-header h2 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

/* Glass Panels */
.glass-panel, .glass-card {
    background: var(--bg-panel);
    backdrop-filter: var(--glass-blur);
    border: 1px solid var(--border-color);
    border-radius: 1rem;
    box-shadow: var(--glass-shadow);
    padding: 1.5rem;
}

/* Dashboard Cards */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.stat-card {
    display: flex;
    align-items: center;
    gap: 1.5rem;
    transition: transform 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-icon {
    width: 48px;
    height: 48px;
    color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.1);
    padding: 10px;
    border-radius: 12px;
}

.stat-info h3 {
    font-size: 0.9rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-info p {
    font-size: 1.5rem;
    font-weight: 700;
    margin-top: 0.25rem;
}

/* Setup Form */
.setup-form {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.form-row {
    display: flex;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.form-group {
    flex: 1;
    min-width: 300px;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.form-group h3 {
    margin-bottom: 0.5rem;
    color: var(--accent-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

label {
    font-size: 0.9rem;
    color: var(--text-muted);
    font-weight: 600;
}

input, textarea, select {
    width: 100%;
    padding: 0.75rem 1rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    color: var(--text-main);
    font-family: 'Outfit', sans-serif;
    transition: all 0.3s ease;
    appearance: none;
}

input:focus, textarea:focus, select:focus {
    outline: none;
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.2);
}

select {
    background-image: url("data:image/svg+xml;charset=UTF-8,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3e%3cpolyline points='6 9 12 15 18 9'%3e%3c/polyline%3e%3c/svg%3e");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 1em;
    cursor: pointer;
}

.btn-primary {
    background: var(--accent-primary);
    color: white;
    border: none;
    padding: 1rem 2rem;
    border-radius: 0.5rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    align-self: flex-start;
}

.btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(59, 130, 246, 0.3);
}

/* Upload Zone */
.upload-zone {
    text-align: center;
    padding: 4rem 2rem;
    border: 2px dashed var(--border-color);
    cursor: pointer;
    transition: all 0.3s ease;
}

.upload-zone:hover, .upload-zone.dragover {
    border-color: var(--accent-primary);
    background: rgba(59, 130, 246, 0.05);
}

.upload-icon {
    width: 64px;
    height: 64px;
    color: var(--accent-primary);
    margin-bottom: 1rem;
}

.upload-zone h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.upload-zone p {
    color: var(--text-muted);
}

/* Charts & Dashboard */
.chart-container {
    margin-top: 1.5rem;
    height: 400px;
    position: relative;
    width: 100%;
}

.chart-container h3 {
    margin-bottom: 1rem;
    font-weight: 600;
    color: var(--text-main);
}

.half-width {
    flex: 1;
    min-width: 400px;
}

/* Stats panel in Telemetry */
.stats-panel h3 {
    margin-bottom: 1rem;
    color: var(--accent-primary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.insights-list {
    list-style: none;
}

.insights-list li {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.insights-list li:last-child {
    border-bottom: none;
}

.insight-label {
    color: var(--text-muted);
    font-weight: 600;
}

.insight-value {
    font-weight: 700;
    font-size: 1.1rem;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.view-section.active {
    animation: fadeIn 0.4s ease forwards;
}

/* Engineer Notes Panel */
.engineer-panel {
    margin-top: 1.5rem;
}

.engineer-panel h3 {
    margin-bottom: 1rem;
    color: var(--accent-success);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.notes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.engineer-note {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    transition: transform 0.2s ease;
}

.engineer-note:hover {
    transform: translateY(-2px);
    border-color: var(--accent-success);
}

.note-header {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--accent-warning);
    font-weight: 600;
}

.note-body {
    color: var(--text-main);
    font-size: 0.95rem;
    line-height: 1.4;
}