:root {
    --primary: #e6b981;
    --primary-hover: #cda472;
    --bg-color: #313338;
    --surface: #2b2d31;
    --surface-border: #3f4147;
    --text: #dbdee1;
    --text-muted: #949ba4;
    --error: #ef4444;
    --success: #22c55e;
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-color);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 2rem;
}

.glass-panel {
    background: var(--surface);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--surface-border);
    border-radius: 1.5rem;
    padding: 2.5rem;
    width: 100%;
    max-width: 800px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.5s ease-out;
}

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

header {
    text-align: center;
    margin-bottom: 2rem;
}

header h1 {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.025em;
    margin-bottom: 0.5rem;
}

header h1 span {
    color: var(--primary);
}

header p {
    color: var(--text-muted);
}

.grid-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

@media (max-width: 640px) {
    .grid-container {
        grid-template-columns: 1fr;
    }
}

.card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--surface-border);
    border-radius: 1rem;
    padding: 1.5rem;
}

.card h2 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 1.25rem;
    color: var(--text);
    border-bottom: 1px solid var(--surface-border);
    padding-bottom: 0.5rem;
}

/* Layout Utilities (extracted from tools) */
.left-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.section-card {
    background: rgba(15, 23, 42, 0.4);
    border: 1px solid var(--surface-border);
    border-radius: 1rem;
    padding: 1.5rem;
}

.section-card h3 {
    margin-bottom: 1rem;
    color: var(--primary);
    font-size: 1.1rem;
}

.flex-row {
    display: flex;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1rem;
    flex-wrap: wrap;
}

.flex-row .input-group {
    flex: 1;
    margin-bottom: 0;
}

/* Inputs & Form Groups */
.input-group {
    margin-bottom: 1rem;
}

.input-group:last-child {
    margin-bottom: 0;
}

.input-group label {
    display: block;
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-bottom: 0.5rem;
}

.input-group input,
.input-group select,
.input-group textarea,
input[type="text"],
input[type="password"],
textarea {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--surface-border);
    color: var(--text);
    padding: 0.75rem 1rem;
    border-radius: 0.5rem;
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    transition: all 0.2s;
}

.input-group input:focus,
.input-group select:focus,
.input-group textarea:focus,
input[type="text"]:focus,
input[type="password"]:focus,
textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

select {
    appearance: none;
    -webkit-appearance: none;
    cursor: pointer;
    background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%22292.4%22%20height%3D%22292.4%22%3E%3Cpath%20fill%3D%22%23dbdee1%22%20d%3D%22M287%2069.4a17.6%2017.6%200%200%200-13-5.4H18.4c-5%200-9.3%201.8-12.9%205.4A17.6%2017.6%200%200%200%200%2082.2c0%205%201.8%209.3%205.4%2012.9l128%20127.9c3.6%203.6%207.8%205.4%2012.8%205.4s9.2-1.8%2012.8-5.4L287%2095c3.5-3.5%205.4-7.8%205.4-12.8%200-5-1.9-9.2-5.5-12.8z%22%2F%3E%3C%2Fsvg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem top 50%;
    background-size: 0.65rem auto;
}

select option {
    background-color: var(--surface);
    color: var(--text);
}

/* Buttons */
.primary-btn {
    width: 100%;
    background: var(--primary);
    color: white;
    border: none;
    padding: 1rem;
    border-radius: 0.75rem;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    box-shadow: 0 4px 6px -1px rgba(79, 70, 229, 0.2);
}

.primary-btn:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
}

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

button:disabled,
.primary-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    filter: grayscale(0.5);
}

/* Logs */
.log-card {
    display: flex;
    flex-direction: column;
    height: 100%;
}

#logArea, .log-area {
    background: rgba(0, 0, 0, 0.5);
    border-radius: 0.5rem;
    padding: 1rem;
    font-family: monospace;
    color: #10b981;
    font-size: 0.9rem;
    border: 1px solid #334155;
    white-space: pre-wrap;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow-y: auto;
}

.log-error { color: #ef4444; }
.log-warn { color: #f59e0b; }
.log-info { color: #3b82f6; }
.log-success { color: #10b981; font-weight: bold; }

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: 1rem;
    font-size: 0.85rem;
    font-weight: 600;
    background: #334155;
    color: #cbd5e1;
    margin-left: 1rem;
}

.status-connected {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

/* File Upload Wrapper */
.file-upload-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    background-color: rgba(0,0,0,0.2);
    border: 1px solid var(--surface-border);
    border-radius: 0.5rem;
    overflow: hidden;
}

.input-group .file-upload-btn {
    background: var(--surface-border);
    color: var(--text);
    padding: 0.75rem 1.25rem;
    cursor: pointer;
    font-weight: 500;
    transition: background 0.2s;
    font-size: 0.9rem;
    border-right: 1px solid var(--surface-border);
    margin-bottom: 0;
    display: flex;
    align-items: center;
    justify-content: center;
}

.input-group .file-upload-btn:hover {
    background: #4a4d54;
}

/* Toggle Switch (iOS Style) */
.toggle-switch {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
}
.toggle-switch input {
    opacity: 0;
    width: 0;
    height: 0;
}
.toggle-slider {
    position: absolute;
    cursor: pointer;
    top: 0; left: 0; right: 0; bottom: 0;
    background-color: #334155;
    transition: .3s;
    border-radius: 24px;
}
.toggle-slider:before {
    position: absolute;
    content: "";
    height: 18px;
    width: 18px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .3s;
    border-radius: 50%;
}
input:checked + .toggle-slider {
    background-color: var(--primary);
}
input:checked + .toggle-slider:before {
    transform: translateX(20px);
}

/* Results (from Wuchtrechner) */
.results-card {
    margin-top: 2rem;
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid var(--primary);
    border-radius: 1rem;
    padding: 1.5rem;
    animation: fadeIn 0.3s ease-out;
}

.results-card h2 {
    font-size: 1.1rem;
    font-weight: 500;
    margin-bottom: 1rem;
    color: var(--primary);
}

.error-msg {
    color: var(--error);
    background: rgba(239, 68, 68, 0.1);
    padding: 1rem;
    border-radius: 0.5rem;
    margin-bottom: 1rem;
    display: none;
}

.results-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.result-item {
    background: rgba(0, 0, 0, 0.2);
    padding: 1rem;
    border-radius: 0.5rem;
    border: 1px solid var(--surface-border);
}

.result-item label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.result-item .value {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--text);
    margin-top: 0.25rem;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: padding-box rgb(203, 213, 225);
    border-radius: 10px;
    border: 2px solid transparent;
}
::-webkit-scrollbar-thumb:hover {
    background: padding-box rgb(148, 163, 184);
    border: 2px solid transparent;
}