* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: #f5f5f5;
    color: #333;
    line-height: 1.5;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Navbar */
.navbar {
    background: #3788d8;
    color: white;
    padding: 12px 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.nav-brand {
    font-size: 1.5rem;
    font-weight: bold;
}

.nav-user {
    display: flex;
    align-items: center;
    gap: 15px;
}

/* Buttons */
.btn {
    display: inline-block;
    padding: 8px 16px;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    text-decoration: none;
    font-size: 14px;
    background: #e0e0e0;
    color: #333;
}

.btn:hover {
    background: #d0d0d0;
}

.btn-primary {
    background: #3788d8;
    color: white;
}

.btn-primary:hover {
    background: #2a6cb8;
}

.btn-sm {
    padding: 4px 10px;
    font-size: 12px;
}

.btn-block {
    display: block;
    width: 100%;
    text-align: center;
}

/* Forms */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: 500;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 4px;
    font-size: 14px;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: #3788d8;
}

.form-group input[type="checkbox"] {
    width: auto;
    margin-right: 8px;
}

.form-row {
    display: flex;
    gap: 15px;
}

.form-row .form-group {
    flex: 1;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    margin-top: 20px;
}

/* Login Page */
.login-page {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: linear-gradient(135deg, #3788d8, #2a6cb8);
}

.login-container {
    background: white;
    padding: 40px;
    border-radius: 8px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    width: 100%;
    max-width: 400px;
}

.login-container h1 {
    text-align: center;
    margin-bottom: 30px;
    color: #3788d8;
}

/* Alerts */
.alert {
    padding: 12px;
    border-radius: 4px;
    margin-bottom: 20px;
}

.alert-error {
    background: #fee;
    color: #c00;
    border: 1px solid #fcc;
}

/* Calendar Layout */
.calendar-layout {
    display: flex;
    gap: 20px;
    min-height: calc(100vh - 100px);
}

.sidebar {
    width: 250px;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.sidebar h3 {
    margin: 20px 0 10px;
    font-size: 14px;
    color: #666;
}

.calendar-list {
    list-style: none;
}

.calendar-list li {
    display: flex;
    align-items: center;
    padding: 8px 0;
}

.calendar-color {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    margin-right: 10px;
}

.caldav-info {
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #eee;
}

.caldav-info h4 {
    font-size: 12px;
    color: #666;
    margin-bottom: 8px;
}

.caldav-info code {
    display: block;
    background: #f5f5f5;
    padding: 8px;
    border-radius: 4px;
    font-size: 12px;
    word-break: break-all;
}

.help-text {
    font-size: 11px;
    color: #999;
    margin-top: 8px;
}

.calendar-main {
    flex: 1;
    background: white;
    padding: 20px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.5);
    justify-content: center;
    align-items: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: white;
    padding: 30px;
    border-radius: 8px;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
}

.modal-content h2 {
    margin-bottom: 20px;
}

.close {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 24px;
    cursor: pointer;
    color: #999;
}

.close:hover {
    color: #333;
}

/* Event form page */
.event-form-page {
    max-width: 600px;
    margin: 0 auto;
    background: white;
    padding: 30px;
    border-radius: 8px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.event-form-page h1 {
    margin-bottom: 25px;
}

/* FullCalendar overrides */
.fc {
    height: 100%;
}

.fc-event {
    cursor: pointer;
}

.fc-toolbar-title {
    font-size: 1.2rem !important;
}