/* Import moderního fontu */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;600&display=swap');

:root {
    --primary-color: #4f46e5; /* Indigo */
    --primary-hover: #4338ca;
    --bg-color: #f3f4f6;
    --card-bg: #ffffff;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --border-color: #e5e7eb;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
}

/* Navbar - čistý, bílý, se stínem */
.navbar {
    background-color: var(--card-bg) !important;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
    padding: 0.8rem 1rem;
}

.navbar-brand {
    font-weight: 600;
    color: var(--primary-color) !important;
    font-size: 1.25rem;
}

.nav-link {
    color: var(--text-main) !important;
    font-weight: 500;
}

.nav-link:hover {
    color: var(--primary-color) !important;
}

/* Karty a kontejnery */
main {
    background: transparent;
    box-shadow: none;
    padding: 20px 0;
}

/* --- OPRAVA KALENDÁŘE (Hardening proti Bootstrapu) --- */

.calendar-container {
    background: var(--card-bg);
    border-radius: 12px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    padding: 20px;
    overflow-x: auto; /* Pro mobily */
}

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

.calendar-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0;
    color: var(--text-main);
}

.btn-nav {
    background: white;
    border: 1px solid var(--border-color);
    color: var(--text-main);
    padding: 5px 12px;
    border-radius: 6px;
    text-decoration: none;
    transition: all 0.2s;
}
.btn-nav:hover {
    background: var(--bg-color);
    color: var(--primary-color);
}

/* Vynucení mřížky tabulky */
table.calendar-table {
    width: 100% !important;
    table-layout: fixed !important; /* Stejně široké sloupce */
    border-collapse: collapse !important; /* Spojené rámečky */
    border-spacing: 0;
    margin-bottom: 0;
}

.calendar-table th {
    text-transform: uppercase;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    padding: 10px;
    border: 1px solid var(--border-color); /* Rámeček všude */
    background: #f9fafb;
    text-align: center;
}

.calendar-table td {
    height: 120px;
    vertical-align: top;
    border: 1px solid var(--border-color); /* Rámeček všude */
    padding: 8px;
    background: #fff;
    width: 14.28%; /* 1/7 šířky */
    transition: background 0.2s;
}

.calendar-table td:hover {
    background-color: #fdfdfd;
}

.calendar-table td.today {
    background-color: #eff6ff; /* Světle modrá pro dnešek */
}

.day-number {
    font-weight: 600;
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 8px;
    display: flex;
    justify-content: space-between;
}

.add-btn {
    opacity: 0;
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2rem;
    line-height: 1;
    transition: opacity 0.2s;
    text-decoration: none;
}

td:hover .add-btn {
    opacity: 1;
}

/* Události v kalendáři */
.event-item {
    display: block;
    margin-bottom: 4px;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    text-decoration: none;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    box-shadow: 0 1px 2px rgba(0,0,0,0.05);
    transition: transform 0.1s;
}

.event-item:hover {
    transform: translateY(-1px);
    opacity: 0.9;
}

/* Barvy kategorií */
.cat-event { background-color: #e0e7ff; color: #3730a3; border-left: 3px solid #4f46e5; }
.cat-task { background-color: #fee2e2; color: #991b1b; border-left: 3px solid #ef4444; }
.cat-birthday { background-color: #fae8ff; color: #86198f; border-left: 3px solid #d946ef; }

/* Formuláře */
input, select, textarea {
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 10px;
    font-size: 0.95rem;
    width: 100%;
    outline: none;
    transition: border-color 0.2s;
}

input:focus, select:focus, textarea:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

button.btn-primary {
    background-color: var(--primary-color);
    border: none;
    padding: 10px 20px;
    font-weight: 500;
    color: white;
}

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