:root {

    --bg: #f4f5f7;
    --panel: white;
    --sidebar: #ffffff;
    --text: #111;
    --muted: #666;
    --border: #ddd;
    --accent: #2563eb;

}



.dark {

    --bg: #080808;
    --panel: #151515;
    --sidebar: #101010;
    --text: #eee;
    --muted: #aaa;
    --border: #333;
    --accent: #38bdf8;

}



* {
    box-sizing: border-box;
}



body {

    margin: 0;

    background: var(--bg);

    color: var(--text);

    font-family:
        Inter,
        system-ui,
        sans-serif;

    transition: 0.2s;

}



.layout {

    display: grid;

    grid-template-columns: 260px 1fr;

    height: 100vh;

    display: none;

}


.sidebar {

    background: var(--sidebar);

    border-right: 1px solid var(--border);

    padding: 25px;

    display: flex;

    flex-direction: column;

}



.logo {

    display: flex;

    align-items: center;

    gap: 10px;

    margin-bottom: 40px;

}



.logo h2 {

    margin: 0;

}



nav {

    display: flex;

    flex-direction: column;

    gap: 8px;

}



nav a {

    cursor: pointer;

    padding: 12px 15px;

    border-radius: 10px;

    color: var(--muted);

    transition: 0.2s;

}



nav a:hover,
nav .active {

    background: var(--accent);

    color: white;

}



.sidebar-bottom {

    margin-top: auto;

}



button {

    width: 100%;

    padding: 12px;

    border-radius: 10px;

    border: 1px solid var(--border);

    background: var(--panel);

    color: var(--text);

    cursor: pointer;

    margin-top: 8px;

}



/* Content */

.content {

    padding: 40px;

    overflow-y: auto;

}



h1 {

    margin-top: 0;

}



.card {

    background: var(--panel);

    border: 1px solid var(--border);

    border-radius: 16px;

    padding: 25px;

    margin-top: 20px;

    box-shadow:
        0 10px 30px rgba(0,0,0,0.05);

}



/* forms */

input {

    width: 100%;

    padding: 12px;

    border-radius: 10px;

    border: 1px solid var(--border);

    background: var(--bg);

    color: var(--text);

    margin-top: 8px;

}



form {

    display: flex;

    flex-direction: column;

}



.muted {

    color: var(--muted);

}



.error {

    color: #e11d48;

}



/* list items */

.list-item {

    padding: 10px 15px;

    border: 1px solid var(--border);

    border-radius: 10px;

    margin-top: 10px;

}



/* event actions */

.event-actions {

    display: flex;

    gap: 10px;

    margin-top: 15px;

}


.event-actions button {

    margin-top: 0;

}



/* calendar */

.calendar-header {

    display: flex;

    align-items: center;

    justify-content: space-between;

}


.calendar-header h3 {

    margin: 0;

    text-transform: capitalize;

}


.calendar-nav-btn {

    width: auto;

    padding: 8px 14px;

    margin-top: 0;

}


.calendar-legend {

    display: flex;

    gap: 18px;

    margin-top: 14px;

    font-size: 12px;

    color: var(--muted);

}


.legend-item {

    display: flex;

    align-items: center;

    gap: 6px;

}


.legend-dot {

    width: 10px;

    height: 10px;

    border-radius: 50%;

    display: inline-block;

}


/* week grid */

.calendar-week {
    display: flex;
    margin-top: 16px;
    overflow-x: auto;
}


.calendar-gutter {
    width: 55px;
    flex-shrink: 0;
    padding-top: 0px;
}


.calendar-hour-label {
    height: 48px; /* 2 uur = 48px */
    font-size: 11px;
    color: var(--muted);
    text-align: right;
    padding-right: 8px;
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
    transform: translateY(-6px);
}


.calendar-days {
    display: flex;
    flex: 1;
    min-width: 700px;
}


.calendar-day-column {
    flex: 1;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--border);
}


.calendar-day-header {
    height: 32px;
    text-align: center;
    padding: 6px 0;
    font-size: 12px;
    color: var(--muted);
}


.calendar-day-track {
    position: relative;

    height: 576px; /* 12 uur zichtbaar × 48px */
    
    background-image:
        repeating-linear-gradient(
            to bottom,
            var(--border) 0,
            var(--border) 1px,
            transparent 1px,
            transparent 48px
        );
}


.calendar-event {
    position: absolute;

    left: 4px;
    right: 4px;

    border-radius: 6px;

    padding: 3px 6px;

    font-size: 11px;

    color: white;

    cursor: pointer;

    overflow: hidden;

    box-shadow:
        0 2px 6px rgba(0,0,0,0.25);

    opacity: 0.92;

    border: 1px solid rgba(255,255,255,0.4);
}


.calendar-event-time {
    display: block;
    font-size: 10px;
    opacity: 0.85;
}


.calendar-event-title {
    display: block;
    font-weight: 600;

    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.event-confirmed {

    background: #16a34a;

}


.event-busy {

    background: #f97316;

}


.event-private {

    background: #6b7280;

}



/* login screen */

.login-screen {

    height: 100vh;

    width: 100%;

    display: flex;

    align-items: center;

    justify-content: center;

}



.login-box {

    background: var(--panel);

    border: 1px solid var(--border);

    border-radius: 16px;

    padding: 40px;

    width: 320px;

    box-shadow:
        0 10px 30px rgba(0,0,0,0.05);

}



.login-box h2 {

    margin-top: 0;

    text-align: center;

}