/* Reset und Basiseinstellungen */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Farbpalette */
    --primary: #99C900;
    --primary-hover: #82ac29;
    --secondary: #AAAAAA;
    --background: #F6F6F6;
    --surface: #ffffff;
    --border: #e5e7eb;
    --text: #111827;
    --text-light: #6b7280;
    --success: #99C900;
    --warning: #f59e0b;

    /* Abstände */
    --radius-sm: 0;
    --radius-md: 2px;
    --radius-lg: 4px;
    --spacing-xs: 4px;
    --spacing-sm: 8px;
    --spacing-md: 16px;
    --spacing-lg: 24px;
    --spacing-xl: 32px;

    /* Schatten */
    --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
    --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1);

    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-normal: 250ms ease;
}

@font-face {
    font-display: swap;
    /* Check https://developer.mozilla.org/en-US/docs/Web/CSS/@font-face/font-display for other options. */
    font-family: 'JetBrains Mono';
    font-style: normal;
    font-weight: 400;
    src: url('./jetbrains-mono.woff2') format('woff2');
    /* Chrome 36+, Opera 23+, Firefox 39+, Safari 12+, iOS 10+ */
}

body {
    font-family: Arial, ArialMT, "Arial", "ArialMT", sans-serif;
    ;
    background: var(--background);
    color: var(--text);
    line-height: 1.5;
    min-height: 100vh;
    padding: var(--spacing-md);
}

/* Layout */
.wrap {
    max-width: 1200px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
}

.layout {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

/* Panel (Vorschau-Bereich) */
.controls-right {
    width: 100%;
}


#previewCanvas {
    border: 1px solid #999;
    max-height: 67vh;
        max-width: 1150px;
    background: linear-gradient(45deg, var(--surface) 25%, var(--background) 25%,
            var(--background) 50%, var(--surface) 50%,
            var(--surface) 75%, var(--background) 75%);
    background-size: 20px 20px;
    margin: 0 auto;
}

.panel {
    width: 100%;
    max-width: 1200px;
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    margin: 0 auto;
}

.preview-placeholder {
    background: linear-gradient(45deg, var(--surface) 25%, var(--background) 25%,
            var(--background) 50%, var(--surface) 50%,
            var(--surface) 75%, var(--background) 75%);
    background-size: 20px 20px;
    border: 2px dashed var(--border);
    display: flex;
    align-items: center;
    justify-content: center;

    position: relative;
    overflow: hidden;
}

.preview-placeholder::before {
    content: 'Vorschau wird generiert ...';
    color: var(--text-light);
    font-size: 14px;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
}

#statusDisplay {
    font-size: 14px;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--background);
    border-radius: var(--radius-sm);
    border-left: 3px solid var(--success);
    font-family: 'JetBrains Mono', monospace;
    margin-top: var(--spacing-sm);
}

.cfgForm {
    background: var(--surface);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border);
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    min-height: auto;
}

.tabs {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.tab-buttons {
    display: flex;
    gap: var(--spacing-xs);
    flex-wrap: nowrap;
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--border);

}

.tab-button {
    padding: 8px 12px;
    background: none;
    border: none;
    border-radius: var(--radius-sm);
    color: var(--text-light);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
    font-size: 13px;
    position: relative;
    min-height: 36px;
}

.tab-button:hover {
    background: var(--background);
    color: var(--text);
}

.tab-button.active {
    color: var(--primary);
    background: var(--background);
}

.tab-button.active::after {
    content: '';
    position: absolute;
    bottom: -9px;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--primary);
    border-radius: 1px;
}

.tab-panels {
    position: relative;

}

.tab-panel {
    display: none;
    animation: fadeIn var(--transition-normal);
}

.tab-panel.active {
    display: block;
}

#tab-page label {
    position: relative;
}

#tab-page input:not([type="checkbox"]) {
    padding-right: 44px;
    width: 100%;
}

/* Unified input wrapper for inline units */
.input-with-unit { position: relative; display: inline-block; vertical-align: middle; }
.input-with-unit input:not([type="checkbox"]) { padding-right: 44px; }
.input-with-unit .unit,
.input-with-unit .unit-pt {
    position: absolute;
    right: 10px;
    top: 50%;
    transform: translateY(-50%);
    border-left: 1px solid var(--border);
    padding-left: 8px;
    color: var(--text-light);
    font-size: 12px;
    height: 20px;
    display: inline-flex;
    align-items: center;
    pointer-events: none;
    background: transparent;
}

/* ensure labels still layout correctly */
#tab-fonts label, #tab-page label, #tab-lines label { position: relative; }


/* Responsive tweaks: reduce padding and right offset on small screens */
@media (max-width: 480px) {
    .input-with-unit input:not([type="checkbox"]) { padding-right: 36px; }
    .input-with-unit .unit,
    .input-with-unit .unit-pt { right: 8px; font-size: 11px; }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

fieldset {
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: var(--spacing-md);
    background: var(--background);
    transition: border-color var(--transition-fast);
    margin-bottom: 0;
}

fieldset:hover {
    border-color: var(--primary);
}

legend {
    font-weight: 600;
    color: var(--text);
    padding: 0 var(--spacing-sm);
    font-size: 14px;
    margin-bottom: var(--spacing-sm);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 12px;
    margin-top: 0;
}

label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 13px;
    font-weight: 500;
    color: var(--text);
    min-height: auto;
}

input:not([type="checkbox"]),
select {
    padding: 6px 10px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    transition: all var(--transition-fast);
    background: var(--surface);
    height: 32px;
}

input:focus,
select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.1);
}

input.small {
    width: 70px;
    min-width: 70px;
}

/* CMYK Input Groups – compact inline pairs (label above each input) */
.cmyk-group {
    display: grid;
    grid-auto-flow: column;
    grid-template-rows: auto auto;
    grid-template-columns: repeat(4, minmax(40px, 1fr));
    gap: 6px;
    align-items: center;
    justify-items: center;
}

.cmyk-group>label {
    font-size: 11px;
    font-weight: 600;
    color: var(--text-light);
    text-align: center;
    padding: 0 2px;
}

.cmyk-group>input.cmyk-field {
    width: 50px;
    max-width: 60px;
    text-align: right;
    padding: 0;
    height: 27px;
    font-size: 14px;
    box-sizing: border-box;
}


@media (max-width: 560px) {
    .cmyk-group {
        grid-template-columns: repeat(2, minmax(40px, 1fr));
    }
}

/* Checkbox Styling */
input[type="checkbox"] {
    width: 16px;
    height: 16px;
    margin-right: 6px;
    accent-color: var(--primary);
    cursor: pointer;
}

label:has(input[type="checkbox"]) {
    flex-direction: row;
    align-items: center;
    cursor: pointer;
    min-height: 24px;
}

/* Buttons */
button {
    padding: 8px 16px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
    font-size: 13px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

button:hover {
    background: var(--primary-hover);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

button:active {
    transform: translateY(0);
}

.button-group {
    display: flex;
    gap: 8px;
    align-items: center;
}

.button-group button {
    flex: 1 1 auto;
    min-width: 120px;
    height: 40px;
    margin-top: var(--spacing-sm);
}

.button-group #gen {
    width: auto;
    /* override global full-width when inside a group */
}

.button-group #downloadConfig,
.button-group #downloadPdf,
.button-group #uploadConfig {
    flex: 0 0 220px;
    max-width: 220px;
    background-color: var(--secondary);
}

.actionBtn {
    width: 100%;
    padding: 10px;
    font-size: 14px;
    background: var(--primary);
    height: 40px;
}

.font-combination {
    padding: var(--spacing-sm);
    background: var(--surface);
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    margin-bottom: var(--spacing-sm);
}

.font-combination h4 {
    margin-bottom: var(--spacing-sm);
    color: var(--text);
    font-size: 14px;
}

/* Optimierung für die Schriften-Tabs */
#tab-fonts fieldset {
    padding: var(--spacing-sm);
}

#tab-fonts .form-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
    border: 1px solid var(--border);
    padding: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

#tab-calendar .form-grid {
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 8px;
}

#tab-page .form-grid {
    grid-template-columns: repeat(auto-fit, minmax(100px, 1fr));
}

#tab-fonts label {
    font-size: 12px;
}

#tab-fonts input:not([type="checkbox"]),
#tab-fonts select,
#tab-lines input:not([type="checkbox"]) {
    font-size: 12px;
    width: 100%;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

::-webkit-scrollbar-track {
    background: var(--background);
    border-radius: var(--radius-sm);
}

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

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

/* Focus Styles für Accessibility */
:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}
/* Responsive Anpassungen */
@media (max-width: 1240px) {
    .wrap {
        padding: var(--spacing-sm);
    }

    .panel,
    .cfgForm {
        width: 100%;
        max-width: calc(100vw - var(--spacing-md) * 2);
    }
}

@media (max-width: 768px) {
    body {
        padding: var(--spacing-sm);
    }

    .wrap {
        padding: 0;
    }

    .panel,
    .cfgForm {
        border-radius: var(--radius-md);
        padding: var(--spacing-sm);
        max-width: calc(100vw - var(--spacing-sm) * 2);
    }

    .form-grid {
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .tab-buttons {
        gap: 2px;
    }

    .tab-button {
        padding: 6px 8px;
        font-size: 12px;
        min-height: 32px;
    }

    .tab-panels {
        min-height: 320px;
    }

    fieldset {
        padding: var(--spacing-sm);
    }

    legend {
        font-size: 13px;
    }

    /* CMYK Anpassung für Mobile */
    .cmyk-group {
        grid-template-columns: repeat(5, 1fr);
    }

    .cmyk-group>*:first-child {
        grid-column: span 5;
        text-align: left;
        font-size: 12px;
        margin-bottom: 4px;
    }

    .cmyk-group label {
        font-size: 10px;
    }

    .cmyk-field {
        max-width: none;
        height: 26px;
    }
}

@media (max-width: 480px) {

    .panel,
    .cfgForm {
        padding: 10px;
        max-width: calc(100vw - 20px);
    }

    .preview-placeholder {
        aspect-ratio: 1;
    }

    .tab-button {
        font-size: 11px;
        padding: 4px 6px;
    }

    #tab-fonts .form-grid {
        grid-template-columns: 1fr;
    }
}

/* Preview controls  */
.preview-controls {
    display: flex;
    gap: 8px;
    align-items: center;
    justify-content: center;
    margin-top: 6px;
}
.preview-btn {
    font-size: 16px;
    padding: 6px 10px;
    height: 34px;
    min-width: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}
.preview-indicator {
    min-width: 64px;
    text-align: center;
    color: var(--text-light);
    font-weight: 600;
}
/* Use CSS-generated content for arrows so JS doesn't inject characters */
.preview-prev::before,
.preview-next::before {
    font-size: 16px;
    line-height: 1;
    display: inline-block;
}
.preview-prev::before { content: '‹'; }
.preview-next::before { content: '›'; }