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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    background: #1a1a2e;
    color: #eee;
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 480px;
    margin: 0 auto;
}

.header {
    text-align: center;
    margin-bottom: 20px;
}

.header h1 {
    font-size: 24px;
    color: #667eea;
    margin-bottom: 5px;
}

.subtitle {
    font-size: 14px;
    color: #888;
}

.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
}

.tab {
    flex: 1;
    padding: 12px;
    background: #16213e;
    border: none;
    border-radius: 12px;
    color: #888;
    font-size: 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.tab.active {
    background: #667eea;
    color: #fff;
}

.section {
    display: none;
}

.section.active {
    display: block;
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.section-header h2 {
    font-size: 18px;
    color: #ddd;
}

.badge {
    background: #667eea;
    color: #fff;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    margin-left: 8px;
}

.btn-add {
    background: #667eea;
    color: #fff;
    border: none;
    padding: 8px 16px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
}

.cards-list {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.empty {
    text-align: center;
    color: #666;
    padding: 40px;
}

.card {
    background: #16213e;
    border-radius: 16px;
    padding: 16px;
    border-left: 4px solid #667eea;
}

.card.high { border-left-color: #ff6b6b; }
.card.medium { border-left-color: #feca57; }
.card.low { border-left-color: #1dd1a1; }

.card-title {
    font-size: 16px;
    margin-bottom: 8px;
    color: #fff;
}

.card-meta {
    font-size: 12px;
    color: #888;
    margin-bottom: 12px;
}

.card-actions {
    display: flex;
    gap: 8px;
}

.btn {
    flex: 1;
    padding: 8px;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-complete {
    background: #1dd1a1;
    color: #fff;
}

.btn-complete:hover {
    background: #10ac84;
}

.btn-postpone {
    background: #feca57;
    color: #333;
}

.btn-postpone:hover {
    background: #ff9f43;
}

.btn-cancel {
    background: #ff6b6b;
    color: #fff;
}

.btn-cancel:hover {
    background: #ee5a5a;
}

.modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0,0,0,0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.hidden {
    display: none;
}

.modal-content {
    background: #16213e;
    padding: 24px;
    border-radius: 16px;
    width: 90%;
    max-width: 400px;
}

.modal-content h3 {
    margin-bottom: 16px;
    color: #667eea;
}

.modal-content form {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modal-content input,
.modal-content select {
    padding: 12px;
    border: 1px solid #333;
    border-radius: 8px;
    background: #1a1a2e;
    color: #fff;
    font-size: 14px;
}

.modal-buttons {
    display: flex;
    gap: 10px;
    margin-top: 8px;
}

.btn-submit {
    flex: 1;
    padding: 12px;
    background: #667eea;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
}

.btn-cancel-modal {
    flex: 1;
    padding: 12px;
    background: #333;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
}

.event-card {
    background: #16213e;
    border-radius: 16px;
    padding: 16px;
    border-left: 4px solid #764ba2;
}

.event-title {
    font-size: 16px;
    margin-bottom: 8px;
    color: #fff;
}

.event-time {
    font-size: 14px;
    color: #667eea;
    margin-bottom: 4px;
}

.event-location {
    font-size: 12px;
    color: #888;
}