:root {
    --bg-color: #ffffff;
    --text-primary: #000000;
    --text-secondary: #666666;
    --border-color: #e5e5e5;
    --border-focus: #000000;
    --error: #ff3333;
    --success: #000000;
}

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

body {
    font-family: 'Inter', -apple-system, sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 40px 20px;
}

/* Header */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 2px solid var(--text-primary);
    padding-bottom: 20px;
    margin-bottom: 60px;
}

.logo-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.logo-top {
    display: flex;
    align-items: baseline;
    gap: 8px;
}

.spatialux-logo {
    font-family: 'Oleo Script', cursive;
    font-size: 1.8rem;
    font-weight: 400;
    letter-spacing: 0.5px;
    color: var(--text-primary);
}

.pet-logo {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    text-transform: uppercase;
    color: var(--text-primary);
}

.logo-subtitle {
    font-family: 'Inter', sans-serif;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--text-primary);
    margin-top: -2px;
    display: inline-block;
    transform: scale(0.5);
    transform-origin: top center;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
}

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

.dot.online {
    background-color: #10b981;
    /* bright green */
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.4);
}

/* Hero Section (Header + 3D Model) */
.hero-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 40px;
    margin-bottom: 40px;
}

.invoice-header {
    flex: 1;
}

.invoice-header h1 {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-bottom: 8px;
}

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

.model-container {
    width: 450px;
    height: 450px;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    background: #fafafa;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
}

/* Form Styles */
.form-group {
    margin-bottom: 30px;
}

label {
    display: block;
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    margin-bottom: 8px;
    color: var(--text-primary);
}

input[type="text"],
select {
    width: 100%;
    padding: 12px 0;
    border: none;
    border-bottom: 1px solid var(--border-color);
    font-family: 'Inter', sans-serif;
    font-size: 1rem;
    background: transparent;
    outline: none;
    transition: border-color 0.2s;
    border-radius: 0;
    -webkit-appearance: none;
    appearance: none;
}

input[type="text"]:focus,
select:focus {
    border-bottom-color: var(--border-focus);
}

.help-text {
    font-size: 0.75rem;
    color: var(--text-secondary);
    margin-top: 6px;
}

/* Drop Zone */
.drop-zone {
    border: 1px dashed var(--border-color);
    padding: 40px 20px;
    text-align: center;
    position: relative;
    cursor: pointer;
    transition: all 0.2s ease;
    background: #fafafa;
}

.drop-zone:hover,
.drop-zone.dragover {
    border-color: var(--border-focus);
    background: #fff;
}

.drop-zone input[type="file"] {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    opacity: 0;
    cursor: pointer;
}

.drop-zone-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
}

.drop-text {
    font-weight: 500;
    font-size: 0.9rem;
}

.drop-subtext {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.file-list {
    margin-top: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.file-item {
    font-size: 0.85rem;
    display: flex;
    justify-content: space-between;
    padding: 8px 0;
    border-bottom: 1px solid #f0f0f0;
}

/* Buttons */
.btn-primary,
.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 16px 32px;
    font-family: 'Inter', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    width: 100%;
}

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

.btn-primary:hover {
    background-color: #333;
}

.btn-primary:disabled {
    background-color: #ccc;
    cursor: not-allowed;
}

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

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

.actions {
    margin-top: 40px;
}

/* Progress Container */
.progress-container {
    margin-top: 60px;
    border-top: 2px solid var(--text-primary);
    padding-top: 40px;
}

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

.status-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.status-header h3 {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.05em;
}

.status-label {
    font-size: 0.75rem;
    font-weight: 600;
    letter-spacing: 0.05em;
    padding: 4px 8px;
    background: #eee;
}

.status-label.compiling {
    background: #000;
    color: #fff;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }

    100% {
        opacity: 1;
    }
}

.log-viewer {
    background: #f8f8f8;
    border: 1px solid var(--border-color);
    padding: 20px;
    height: 300px;
    overflow-y: auto;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.8rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 30px;
}

.log-line {
    margin-bottom: 4px;
}

.log-line.error {
    color: var(--error);
}

.log-line.success {
    color: var(--text-primary);
    font-weight: bold;
}

/* Results */
.result-actions.hidden {
    display: none;
}

.success-message {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    margin-bottom: 20px;
}