/* ===================================
   Modern Calendar App - Styles
   =================================== */

/* CSS Variables */
/* ===================================
   CSS Variables
   =================================== */

:root {
    /* Theme Colors */
    --primary-color: #9abd36;
    --primary-hover: #7fa02b;
    --secondary-color: #6b7280;
    --success-color: #10b981;
    --danger-color: #ef4444;
    
    /* Neutral Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f9fafb;
    --bg-tertiary: #f3f4f6;
    --border-color: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    
    /* Calendar Colors (can be overridden) */
    --cal-header-bg: #000000;
    --cal-header-text: #ffffff;
    --cal-weekend-bg: #f0f0f0;
    --cal-weekend-text: #e74c3c;
    --cal-day-bg: #ffffff;
    --cal-day-text: #000000;
    --cal-week-bg: #f9f9f9;
    --cal-week-text: #666666;
    --cal-holiday-bg: #f0e6e6;
    --cal-holiday-text: #e74c3c;
    
    /* Font scaling */
    --font-scale: 1;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    
    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius-md: 0.5rem;
    --radius-lg: 0.75rem;
    
    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===================================
   Control Panel Styles
   =================================== */

.control-panel {
    background: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    padding: var(--spacing-md) 0;
    margin-bottom: var(--spacing-md);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

/* Header */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-md);
    padding-bottom: var(--spacing-sm);
    border-bottom: 2px solid var(--bg-tertiary);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    color: var(--primary-color);
}

.logo-image {
    height: 50px;
    width: auto;
    flex-shrink: 0;
}

.logo svg {
    color: var(--primary-color);
}

.logo h1 {
    font-size: 1.875rem;
    font-weight: 700;
    color: #999999;
}

/* Config Grid */
.config-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
}

.config-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--spacing-md);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s, transform 0.2s;
}

.config-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.config-card-wide {
    grid-column: span 2;
}

/* Force Theme card to start on new row before Color Customization */
#themeCard {
    grid-column-start: 1;
}

.config-card-info {
    background: linear-gradient(135deg, #9abd36 0%, #7fa02b 100%);
    color: white;
    border: none;
}

.config-card-info h3 {
    color: white;
}

.config-card-info p {
    color: rgba(255, 255, 255, 0.95);
    margin: var(--spacing-sm) 0;
    font-size: 0.875rem;
}

.config-card-info .tip-detail {
    color: rgba(255, 255, 255, 0.9);
    font-size: 0.8rem;
}

.config-card h3 {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
    padding-bottom: var(--spacing-xs);
    border-bottom: 1px solid var(--border-color);
}

.config-card-info h3 {
    border-bottom-color: rgba(255, 255, 255, 0.3);
}

/* Year Selector */
.year-selector {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
}

.year-selector .btn-icon {
    min-width: 40px; /* Fixní šířka pro konzistentní layout */
}

.year-selector .btn-icon:disabled {
    opacity: 0;
    pointer-events: none;
    visibility: visible; /* Zachová šířku */
    cursor: default;
}

.year-display {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    min-width: 120px;
    text-align: center;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: 0.875rem;
    font-weight: 500;
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s;
    font-family: inherit;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

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

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

.btn-primary:hover {
    background: var(--primary-hover);
}

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

.btn-secondary:hover {
    background: var(--border-color);
}

.btn-icon {
    padding: var(--spacing-sm);
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

.btn-icon:hover {
    background: var(--border-color);
}

.btn-sm {
    padding: var(--spacing-xs) var(--spacing-md);
    font-size: 0.8rem;
}

/* Form Elements */
.checkbox-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    padding: var(--spacing-xs);
    border-radius: var(--radius-sm);
    transition: background 0.2s;
}

.checkbox-label:hover {
    background: var(--bg-tertiary);
}

.checkbox-label input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
    accent-color: var(--primary-color);
}

.checkbox-label span {
    font-size: 0.875rem;
    color: var(--text-primary);
}

.select-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    cursor: pointer;
    font-family: inherit;
    transition: border-color 0.2s;
}

.select-input:hover,
.select-input:focus {
    outline: none;
    border-color: var(--primary-color);
}

.text-input {
    width: 100%;
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-primary);
    color: var(--text-primary);
    font-family: inherit;
    transition: border-color 0.2s;
}

.text-input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    margin-top: var(--spacing-sm);
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
}

/* Color Grid */
.color-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(100px, 1fr));
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-sm);
}

.color-picker {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    align-items: center;
}

.color-picker label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
}

.color-picker input[type="color"] {
    width: 60px;
    height: 40px;
    border: 2px solid var(--border-color);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: border-color 0.2s;
}

.color-picker input[type="color"]:hover {
    border-color: var(--primary-color);
}

/* ===================================
   Calendar Styles
   =================================== */

#calendarContainer {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xl);
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg) var(--spacing-xl);
}

.calendar-page {
    background: var(--bg-primary);
    border-radius: var(--radius-lg);
    padding: var(--spacing-xl);
    box-shadow: var(--shadow-lg);
}

.calendar-title {
    text-align: center;
    font-size: calc(1.5rem * var(--font-scale));
    font-weight: 700;
    margin-bottom: var(--spacing-lg);
    padding: var(--spacing-md);
    border: 2px solid var(--text-primary);
    border-radius: var(--radius-md);
}

.calendar-table {
    width: 100%;
    border-collapse: collapse;
    border: 2px solid var(--text-primary);
    table-layout: fixed;
}

.calendar-table th {
    background: var(--cal-header-bg);
    color: var(--cal-header-text);
    font-weight: 700;
    padding: var(--spacing-sm);
    text-align: center;
    border: 1px solid var(--text-primary);
    font-size: calc(0.875rem * var(--font-scale));
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.calendar-table td {
    background: var(--cal-day-bg);
    color: var(--cal-day-text);
    border: 1px solid var(--text-primary);
    padding: var(--spacing-sm);
    text-align: left;
    font-size: calc(0.75rem * var(--font-scale));
    line-height: 1.4;
    vertical-align: top;
    min-height: 60px;
}

.calendar-table .week-cell {
    background: var(--cal-week-bg);
    color: var(--cal-week-text);
    text-align: center;
    vertical-align: middle;
    font-size: calc(0.7rem * var(--font-scale));
    font-weight: 600;
    width: 30px;
    padding: var(--spacing-xs);
}

.calendar-table .weekend-cell {
    background: var(--cal-weekend-bg);
    color: var(--cal-weekend-text);
}

.calendar-table .day-header {
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
    line-height: 1.3;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.calendar-table .day-info {
    font-size: calc(0.7rem * var(--font-scale));
    color: inherit;
    opacity: 0.8;
}

.calendar-table .holiday-badge {
    display: inline;
    padding: 1px 3px;
    background: var(--cal-holiday-bg, rgba(239, 68, 68, 0.12));
    color: var(--cal-holiday-text, #e74c3c);
    border-radius: 3px;
    font-size: calc(0.6rem * var(--font-scale));
    font-style: italic;
    font-weight: normal;
    line-height: 1.3;
    margin-left: 3px;
}

.calendar-table .month-border {
    border-right: 2px solid var(--text-primary);
}

.calendar-footer {
    text-align: center;
    margin-top: var(--spacing-md);
    padding-top: var(--spacing-md);
    border-top: 1px solid var(--border-color);
    font-size: calc(0.875rem * var(--font-scale));
    color: var(--text-secondary);
}

.calendar-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.calendar-footer a:hover {
    text-decoration: underline;
}

/* Empty cells - minimální vizuální rušení */
.calendar-table .empty-cell {
    background: #fafafa;
    border: none;
    opacity: 0.3;
}

/* ===================================
   Print Styles
   =================================== */

@media print {
    @page {
        size: A4 landscape;
        margin: 3mm;
    }
    
    body {
        background: white;
        margin: 0;
        padding: 0;
    }
    
    .no-print {
        display: none !important;
    }
    
    #calendarContainer {
        max-width: none;
        padding: 0;
        gap: 0;
    }
    
    .calendar-page {
        width: 297mm; /* A4 landscape width */
        height: 210mm; /* A4 landscape height */
        page-break-after: always;
        page-break-inside: avoid;
        box-shadow: none;
        border-radius: 0;
        padding: 4mm 6mm;
        margin: 0 auto;
        display: flex;
        flex-direction: column;
        box-sizing: border-box;
        justify-content: space-between;
    }
    
    .calendar-page:last-child {
        page-break-after: auto;
    }
    
    .calendar-title {
        font-size: calc(14px * var(--font-scale));
        margin: 0 0 2mm 0;
        padding: 1mm 0;
        flex-shrink: 0;
        line-height: 1.2;
        border: none;
        text-align: center;
        width: 100%;
    }
    
    .calendar-table {
        flex: 1;
        width: 100%;
        font-size: 7px;
        height: auto;
        border-width: 1px;
        border-spacing: 0;
        margin: 0 auto;
    }
    
    /* Zmenšit šířku week column při tisku */
    .calendar-table colgroup col[style*="width: 30px"] {
        width: 16px !important;
    }
    
    .calendar-table th {
        padding: 2mm 1mm;
        font-size: calc(7.5px * var(--font-scale));
        line-height: 1.1;
        background: var(--cal-header-bg) !important;
        color: var(--cal-header-text) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        border-width: 1px;
    }
    
    .calendar-table td {
        padding: 1mm 1.5mm;
        font-size: calc(6.5px * var(--font-scale));
        line-height: 1.2;
        background: var(--cal-day-bg) !important;
        color: var(--cal-day-text) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        height: auto;
        min-height: 0;
        overflow: hidden;
        border-width: 1px;
        vertical-align: top;
    }
    
    .calendar-table .day-header {
        margin-bottom: 0.5mm;
        line-height: 1.2;
        font-size: calc(6.5px * var(--font-scale));
        word-wrap: break-word;
        overflow-wrap: break-word;
    }
    
    .calendar-table .day-header strong {
        font-weight: 600;
    }
    
    .calendar-table .holiday-badge {
        display: inline;
        padding: 0.3mm 0.5mm;
        background: var(--cal-holiday-bg, rgba(239, 68, 68, 0.12)) !important;
        color: var(--cal-holiday-text, #e74c3c) !important;
        font-size: calc(5.5px * var(--font-scale));
        line-height: 1.2;
        margin-left: 0.5mm;
        border-radius: 1px;
        font-weight: normal;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .calendar-table .day-info {
        font-size: calc(5px * var(--font-scale));
        line-height: 1.2;
        margin-top: 0.5mm;
        word-wrap: break-word;
    }
    
    .calendar-table .week-cell {
        font-size: calc(6px * var(--font-scale));
        padding: 1mm 0.5mm;
        line-height: 1.1;
        width: 16px;
        background: var(--cal-week-bg) !important;
        color: var(--cal-week-text) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
        border-width: 1px;
    }
    
    .calendar-table .weekend-cell {
        background: var(--cal-weekend-bg) !important;
        color: var(--cal-weekend-text) !important;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .calendar-table .empty-cell {
        background: #fafafa !important;
        border: none !important;
        opacity: 0.2;
        -webkit-print-color-adjust: exact;
        print-color-adjust: exact;
    }
    
    .calendar-table .month-border {
        border-right-width: 1px !important; /* Tenčí border mezi měsíci */
    }
    
    .calendar-footer {
        font-size: calc(8px * var(--font-scale));
        margin-top: 1.5mm;
        padding-top: 0.5mm;
        flex-shrink: 0;
        line-height: 1.3;
        border-top: none;
        width: 100%;
        text-align: center;
    }
    
    /* Fallback: pokud se přesto nevejde, lehce zmenšíme */
    @supports (zoom: 1) {
        .calendar-page {
            zoom: 0.96;
        }
    }
}

/* ===================================
   Responsive Design
   =================================== */

@media (max-width: 768px) {
    .config-grid {
        grid-template-columns: 1fr;
    }
    
    .config-card-wide {
        grid-column: span 1;
    }
    
    .color-grid {
        grid-template-columns: repeat(auto-fill, minmax(80px, 1fr));
    }
    
    .logo-image {
        height: 40px;
    }
    
    .logo h1 {
        font-size: 1.5rem;
    }
    
    .year-display {
        font-size: 1.5rem;
    }
}

/* ===================================
   Animations
   =================================== */

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.calendar-page {
    animation: fadeIn 0.5s ease-out;
}

/* Loading state */
.loading {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-xl);
    color: var(--text-secondary);
}

.loading::after {
    content: '';
    width: 20px;
    height: 20px;
    border: 3px solid var(--border-color);
    border-top-color: var(--primary-color);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
    margin-left: var(--spacing-sm);
}

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