:root {
    --bg-color: #121212;
    --card-bg: #1e1e1e;
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --accent: #4caf50;
    --accent-hover: #45a049;
    --danger: #ef5350;
    --person-a: #64b5f6;
    --person-b: #ffb74d;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    margin: 0;
    padding: 0;
}

/* Screens */
.screen {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.hidden {
    display: none !important;
}

/* Login */
.login-box {
    margin: auto;
    background: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
    width: 90%;
    max-width: 350px;
}

#sms-log-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}
.log-table {
     width: 100%;
    border-collapse: collapse;
    margin-top: 10px;
}
.log-table th, #sms-log-table th {
    text-align: left;
    padding: 5px;
    border-bottom: 2px solid #333;
    color: #888;
    font-size: 0.9em;
}
.log-table td, #sms-log-table td {
    padding: 8px 5px;
    border-bottom: 1px solid #333;
    font-size: 0.9em;
}
.log-table tr:last-child td, #sms-log-table tr:last-child td {
    border-bottom: none;
}

input {
    background: #333;
    border: 1px solid #444;
    color: white;
    padding: 10px;
    border-radius: 6px;
    width: 80%;
    margin-bottom: 1rem;
    font-size: 1rem;
}

button {
    background: var(--accent);
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: background 0.2s;
}

button:hover {
    background: var(--accent-hover);
}

.error {
    color: var(--danger);
    margin-top: 1rem;
}

/* App Header */
header {
    background: #1a1a1a;
    padding: 1rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid #333;
}

.logo {
    font-weight: bold;
    font-size: 1.2rem;
}

.icon-btn {
    background: transparent;
    padding: 5px 10px;
    font-size: 1.2rem;
}
.icon-btn:hover {
    background: rgba(255,255,255,0.1);
}

/* Layout */
main {
    padding: 1rem;
    max-width: 800px;
    margin: 0 auto;
    width: 100%;
    box-sizing: border-box;
}

.status-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 1rem;
}

.card {
    background: var(--card-bg);
    border-radius: 12px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 10px rgba(0,0,0,0.2);
}

h3 {
    margin-top: 0;
    color: var(--text-secondary);
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.big-value {
    font-size: 2rem;
    font-weight: bold;
    margin: 0.5rem 0;
}

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

/* Calendar List */
.calendar-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    border-bottom: 1px solid #333;
}
.calendar-item:last-child {
    border-bottom: none;
}
.calendar-item.current {
    background: rgba(76, 175, 80, 0.15); /* Zelenkavé pozadí */
    border-left: 4px solid var(--accent);
    box-shadow: 0 0 10px rgba(76, 175, 80, 0.1); /* Jemná záře */
}
/* Aby text v aktuálním týdnu více vynikl */
.calendar-item.current .cal-date {
    color: #fff; 
}
.calendar-item.current > div > div:first-child {
    color: var(--accent); /* Číslo týdne zeleně */
}

.cal-date {
    font-size: 0.9rem;
    color: var(--text-secondary);
}
.cal-person {
    font-weight: bold;
    padding: 4px 10px;
    border-radius: 4px;
    cursor: pointer;
    min-width: 30px;
    text-align: center;
    display: inline-block;
}

.person-A { color: #121212; background: var(--person-a); }
.person-B { color: #121212; background: var(--person-b); }

.cal-override-controls {
    display: flex;
    gap: 5px;
    align-items: center;
}
.btn-sm {
    padding: 4px 8px;
    font-size: 0.8rem;
    opacity: 0.5;
    background: #333;
    color: #fff;
    border: 1px solid #444;
    border-radius: 4px;
}
.btn-sm:hover { opacity: 1; border-color: #666; }
.btn-active { opacity: 1; border-color: white; background: #555; }
.btn-expand { font-size: 0.7rem; margin-right: 10px; cursor: pointer; padding: 5px; }

/* Nested Days */
.days-container {
    background: rgba(0,0,0,0.2);
    padding: 5px 0 5px 20px;
    border-left: 2px solid #333;
    display: none;
}
.days-container.expanded {
    display: block;
}
.day-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 10px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
    font-size: 0.9rem;
}
.day-item:last-child { border-bottom: none; }
.day-label {
    display: flex;
    gap: 10px;
}
.day-name { width: 60px; color: var(--text-secondary); }
.day-date { color: var(--text-primary); }
.day-today { color: var(--accent); font-weight: bold; }