/* CSS Custom Properties - Material Design 3 inspired */
:root {
    /* Light theme (default) */
    --md-sys-color-primary: #1976D2;
    --md-sys-color-primary-dark: #1565C0;
    --md-sys-color-on-primary: #FFFFFF;
    --md-sys-color-surface: #FAFAFA;
    --md-sys-color-surface-container: #FFFFFF;
    --md-sys-color-surface-variant: #E3E3E3;
    --md-sys-color-on-surface: #1C1B1F;
    --md-sys-color-on-surface-variant: #49454F;
    --md-sys-color-outline: #79747E;
    --md-sys-color-outline-variant: #CAC4D0;
    --md-sys-color-background: #F5F5F5;
    --md-sys-color-error: #B3261E;
    --md-sys-color-success: #2E7D32;
    --md-sys-color-preview-bg: #E8E8E8;
    --md-sys-color-preview-pattern: #D0D0D0;

    --md-sys-elevation-1: 0 1px 2px rgba(0,0,0,0.1), 0 1px 3px rgba(0,0,0,0.08);
    --md-sys-elevation-2: 0 2px 4px rgba(0,0,0,0.1), 0 4px 8px rgba(0,0,0,0.1);
    --md-sys-elevation-3: 0 4px 8px rgba(0,0,0,0.1), 0 8px 16px rgba(0,0,0,0.1);

    --md-sys-shape-corner-medium: 12px;
    --md-sys-shape-corner-large: 16px;

    --md-sys-typescale-headline-large: 500 2rem/2.5rem 'Roboto', sans-serif;
    --md-sys-typescale-headline-medium: 500 1.5rem/2rem 'Roboto', sans-serif;
    --md-sys-typescale-body-large: 400 1rem/1.5rem 'Roboto', sans-serif;
    --md-sys-typescale-body-medium: 400 0.875rem/1.25rem 'Roboto', sans-serif;
    --md-sys-typescale-label-large: 500 0.875rem/1.25rem 'Roboto', sans-serif;
}

/* Dark theme - follows system preference */
@media (prefers-color-scheme: dark) {
    :root {
        --md-sys-color-primary: #90CAF9;
        --md-sys-color-primary-dark: #64B5F6;
        --md-sys-color-on-primary: #003258;
        --md-sys-color-surface: #1E1E1E;
        --md-sys-color-surface-container: #2D2D2D;
        --md-sys-color-surface-variant: #3D3D3D;
        --md-sys-color-on-surface: #E6E1E5;
        --md-sys-color-on-surface-variant: #CAC4D0;
        --md-sys-color-outline: #938F99;
        --md-sys-color-outline-variant: #49454F;
        --md-sys-color-background: #121212;
        --md-sys-color-error: #F2B8B5;
        --md-sys-color-success: #81C784;
        --md-sys-color-preview-bg: #2D2D2D;
        --md-sys-color-preview-pattern: #3D3D3D;

        --md-sys-elevation-1: 0 1px 2px rgba(0,0,0,0.3), 0 1px 3px rgba(0,0,0,0.24);
        --md-sys-elevation-2: 0 2px 4px rgba(0,0,0,0.3), 0 4px 8px rgba(0,0,0,0.3);
        --md-sys-elevation-3: 0 4px 8px rgba(0,0,0,0.3), 0 8px 16px rgba(0,0,0,0.3);
    }
}

/* Reset */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: 'Roboto', sans-serif;
    background-color: var(--md-sys-color-background);
    color: var(--md-sys-color-on-surface);
    min-height: 100vh;
    line-height: 1.5;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* App Bar */
.app-bar {
    background-color: var(--md-sys-color-surface);
    color: var(--md-sys-color-on-surface);
    padding: 16px 24px;
    box-shadow: var(--md-sys-elevation-2);
    position: sticky;
    top: 0;
    z-index: 100;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
}

.app-bar-content {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    gap: 12px;
}

.app-bar h1 {
    font: var(--md-sys-typescale-headline-medium);
    font-weight: 500;
}

.app-bar .material-icons {
    font-size: 28px;
    color: var(--md-sys-color-primary);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 24px;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    align-items: start;
}

/* Cards */
.card {
    background-color: var(--md-sys-color-surface);
    border-radius: var(--md-sys-shape-corner-large);
    box-shadow: var(--md-sys-elevation-1);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 24px;
    border-bottom: 1px solid var(--md-sys-color-outline-variant);
    background-color: var(--md-sys-color-surface-container);
}

.card-header h2 {
    font: var(--md-sys-typescale-headline-medium);
    font-size: 1.25rem;
    color: var(--md-sys-color-on-surface);
}

.card-header .material-icons {
    color: var(--md-sys-color-primary);
    font-size: 24px;
}

/* Form Styles */
.form-card form {
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-label {
    font: var(--md-sys-typescale-label-large);
    color: var(--md-sys-color-on-surface-variant);
}

.form-input,
.form-select {
    font: var(--md-sys-typescale-body-large);
    padding: 14px 16px;
    border: 1px solid var(--md-sys-color-outline-variant);
    border-radius: var(--md-sys-shape-corner-medium);
    background-color: var(--md-sys-color-surface-container);
    color: var(--md-sys-color-on-surface);
    transition: border-color 0.2s, box-shadow 0.2s;
    width: 100%;
}

.form-input:focus,
.form-select:focus {
    outline: none;
    border-color: var(--md-sys-color-primary);
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.15);
}

.form-input:read-only {
    background-color: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface-variant);
}

.form-input::placeholder {
    color: var(--md-sys-color-outline);
}

.form-hint {
    font: var(--md-sys-typescale-body-medium);
    font-size: 0.75rem;
    color: var(--md-sys-color-outline);
}

/* Select Wrapper */
.select-wrapper {
    position: relative;
}

.select-wrapper .form-select {
    appearance: none;
    padding-right: 44px;
    cursor: pointer;
}

.select-wrapper .select-icon {
    position: absolute;
    right: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--md-sys-color-outline);
    pointer-events: none;
}

/* Form Row */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* Button Styles */
.btn {
    font: var(--md-sys-typescale-label-large);
    padding: 14px 24px;
    border: none;
    border-radius: var(--md-sys-shape-corner-medium);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: all 0.2s;
    text-transform: none;
}

.btn-primary {
    background-color: var(--md-sys-color-primary);
    color: var(--md-sys-color-on-primary);
    box-shadow: var(--md-sys-elevation-1);
}

.btn-primary:hover {
    background-color: var(--md-sys-color-primary-dark);
    box-shadow: var(--md-sys-elevation-2);
}

.btn-primary:active {
    transform: scale(0.98);
}

.btn .material-icons {
    font-size: 20px;
}

/* Preview Card */
.preview-card {
    position: sticky;
    top: 88px;
}

.preview-container {
    padding: 24px;
    display: flex;
    justify-content: center;
    background-color: var(--md-sys-color-preview-bg);
    background-image:
        linear-gradient(45deg, var(--md-sys-color-preview-pattern) 25%, transparent 25%),
        linear-gradient(-45deg, var(--md-sys-color-preview-pattern) 25%, transparent 25%),
        linear-gradient(45deg, transparent 75%, var(--md-sys-color-preview-pattern) 75%),
        linear-gradient(-45deg, transparent 75%, var(--md-sys-color-preview-pattern) 75%);
    background-size: 20px 20px;
    background-position: 0 0, 0 10px, 10px -10px, -10px 0px;
}

/* Sticker Preview */
.sticker-preview {
    background-color: var(--md-sys-color-surface-container);
    padding: 8px;
    box-shadow: var(--md-sys-elevation-2);
}

.sticker {
    width: 280px;
    border: 2px solid #000;
    font-family: Arial, sans-serif;
    font-size: 11px;
    background: #fff;
    color: #000;
}

.sticker-header {
    background-color: #000;
    color: #fff;
    text-align: center;
    padding: 6px 8px;
    font-size: 18px;
    font-weight: bold;
    letter-spacing: 4px;
}

.sticker-barcode-row {
    display: flex;
    align-items: center;
    border-bottom: 1px solid #000;
    padding: 4px 8px;
    gap: 8px;
}

.sticker-barcode-row span {
    font-size: 11px;
    font-weight: 500;
}

.sticker-barcode-row svg {
    height: 30px;
    flex: 1;
}

.sticker-body {
    display: flex;
    border-bottom: 1px solid #000;
}

.sticker-info {
    flex: 1;
    padding: 6px 8px;
    font-size: 10px;
    line-height: 1.4;
}

.sticker-info .date-row {
    margin-bottom: 2px;
}

.sticker-logo {
    width: 80px;
    border-left: 1px solid #000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
}

.garage-logo .logo-svg {
    width: 70px;
    height: 70px;
}

.sticker-footer {
    text-align: center;
    padding: 4px 8px;
    font-size: 10px;
    font-weight: 500;
    border-top: 1px solid #000;
}

/* Snackbar */
.snackbar {
    visibility: hidden;
    min-width: 280px;
    background-color: var(--md-sys-color-surface-variant);
    color: var(--md-sys-color-on-surface);
    text-align: center;
    border-radius: var(--md-sys-shape-corner-medium);
    padding: 16px 24px;
    position: fixed;
    z-index: 1000;
    left: 50%;
    bottom: 30px;
    transform: translateX(-50%);
    font: var(--md-sys-typescale-body-medium);
    box-shadow: var(--md-sys-elevation-3);
}

@media (prefers-color-scheme: light) {
    .snackbar {
        background-color: #323232;
        color: #fff;
    }
}

.snackbar.show {
    visibility: visible;
    animation: fadein 0.3s, fadeout 0.3s 2.7s;
}

.snackbar.success {
    background-color: var(--md-sys-color-success);
    color: #fff;
}

.snackbar.error {
    background-color: var(--md-sys-color-error);
    color: #fff;
}

@keyframes fadein {
    from { bottom: 0; opacity: 0; }
    to { bottom: 30px; opacity: 1; }
}

@keyframes fadeout {
    from { bottom: 30px; opacity: 1; }
    to { bottom: 0; opacity: 0; }
}

/* Responsive Styles */
@media (max-width: 900px) {
    .main-content {
        grid-template-columns: 1fr;
    }

    .preview-card {
        position: static;
        order: -1;
    }

    .app-bar h1 {
        font-size: 1.25rem;
    }
}

@media (max-width: 600px) {
    .app-bar {
        padding: 12px 16px;
    }

    .app-bar h1 {
        font-size: 1.1rem;
    }

    .main-content {
        padding: 16px;
        gap: 16px;
    }

    .card-header {
        padding: 16px;
    }

    .card-header h2 {
        font-size: 1.1rem;
    }

    .form-card form {
        padding: 16px;
        gap: 16px;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .form-input,
    .form-select {
        padding: 12px 14px;
    }

    .btn {
        padding: 12px 20px;
        width: 100%;
    }

    .preview-container {
        padding: 16px;
    }

    .sticker {
        width: 260px;
    }
}

/* Print Styles for PDF Export */
@media print {
    .app-bar,
    .form-card,
    .card-header,
    .snackbar {
        display: none !important;
    }

    .main-content {
        display: block;
        padding: 0;
    }

    .preview-card {
        box-shadow: none;
        border: none;
    }

    .preview-container {
        background: none;
        padding: 0;
    }
}

/* Loading State */
.btn.loading {
    pointer-events: none;
    opacity: 0.7;
}

.btn.loading .material-icons {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}