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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    min-height: 100vh;
    padding: 20px;
    color: #333;
}

/* 模态框样式 */
.modal {
    display: flex;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
}

.modal-content {
    background-color: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 90%;
    max-width: 400px;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateY(-50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px;
    border-bottom: 1px solid #e5e7eb;
}

.modal-header h2 {
    color: #667eea;
    font-size: 1.5em;
}

.modal-close {
    background: none;
    border: none;
    font-size: 28px;
    color: #999;
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    color: #333;
}

.modal-body {
    padding: 20px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
}

.form-group input:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.form-actions {
    display: flex;
    gap: 10px;
    margin-bottom: 15px;
}

.btn-primary, .btn-secondary {
    flex: 1;
    padding: 12px 24px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: #667eea;
    color: white;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.4);
}

.btn-secondary {
    background: #10b981;
    color: white;
}

.btn-secondary:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.auth-message {
    margin-bottom: 15px;
    padding: 10px;
    border-radius: 6px;
    font-size: 13px;
    text-align: center;
    min-height: 20px;
}

.auth-message.error {
    background: #fee2e2;
    color: #991b1b;
}

.auth-message.success {
    background: #d1fae5;
    color: #065f46;
}

.auth-switch {
    text-align: center;
    font-size: 13px;
    color: #667eea;
    cursor: pointer;
}

.auth-switch:hover {
    text-decoration: underline;
}

.container {
    max-width: 900px;
    margin: 0 auto;
    background: white;
    border-radius: 16px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    padding: 25px;
}

header {
    text-align: center;
    margin-bottom: 15px;
}

header h1 {
    font-size: 2.5em;
    color: #667eea;
    margin-bottom: 10px;
    font-weight: 600;
}

.user-info {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 20px;
    padding: 10px 15px;
    background: #f8f9fa;
    border-radius: 8px;
}

.user-info span {
    font-weight: 600;
    color: #667eea;
}

.btn-logout {
    padding: 6px 12px;
    background: #ef4444;
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-logout:hover {
    background: #dc2626;
    transform: translateY(-1px);
}

.bottom-section {
    margin-top: 20px;
}

.controls {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex-wrap: wrap;
    margin-bottom: 15px;
}

.month-display {
    font-size: 1.5em;
    font-weight: 600;
    color: #333;
    min-width: 200px;
}

.btn-nav {
    background: #667eea;
    color: white;
    border: none;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    font-size: 24px;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.btn-nav:hover {
    background: #5568d3;
    transform: scale(1.1);
}

.btn-nav:active {
    transform: scale(0.95);
}

.btn-today {
    background: #764ba2;
    color: white;
    border: none;
    padding: 10px 20px;
    border-radius: 8px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-today:hover {
    background: #653a8a;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(118, 75, 162, 0.4);
}

.legend {
    display: flex;
    justify-content: center;
    gap: 25px;
    margin-bottom: 15px;
    padding: 10px;
    background: #f8f9fa;
    border-radius: 8px;
    flex-wrap: wrap;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
}

.mark {
    width: 24px;
    height: 24px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 16px;
}

.mark.completed {
    background: #10b981;
    color: white;
}

.mark.partial {
    background: #f59e0b;
    color: white;
}

.mark.none {
    background: #e5e7eb;
    border: 2px solid #d1d5db;
}

.calendar {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 3px;
    margin-bottom: 15px;
}

.weekday {
    text-align: center;
    font-weight: 600;
    color: #667eea;
    padding: 8px;
    font-size: 14px;
    background: #f0f4ff;
    border-radius: 6px;
}

.day {
    aspect-ratio: 1;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.2s ease;
    background: white;
    position: relative;
    padding: 5px;
}

.day:hover {
    border-color: #667eea;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2);
}

.day.other-month {
    opacity: 0.4;
    background: #f9fafb;
}

.day.future-day {
    opacity: 0.6;
    background: #f3f4f6;
    color: #9ca3af;
}

.day.future-day .day-number {
    color: #9ca3af;
}

.day.today {
    border-color: #667eea;
    background: #f0f4ff;
    font-weight: 600;
}

.day.completed {
    background: #d1fae5;
    border-color: #10b981;
}

.day.completed .day-number {
    color: #065f46;
}

.day.partial {
    background: #fef3c7;
    border-color: #f59e0b;
}

.day.partial .day-number {
    color: #92400e;
}

.day-number {
    font-size: 16px;
    font-weight: 500;
    margin-bottom: 4px;
}

.day-mark {
    font-size: 20px;
    font-weight: bold;
    line-height: 1;
}

.day.completed .day-mark {
    color: #10b981;
}

.day.partial .day-mark {
    color: #f59e0b;
}

.instructions {
    text-align: center;
    padding: 10px;
    background: #f0f4ff;
    border-radius: 8px;
    color: #667eea;
    font-size: 14px;
    margin-bottom: 15px;
}

.instructions p {
    margin: 5px 0;
}

.server-section {
    padding: 15px;
    background: #f8f9fa;
    border-radius: 8px;
    border-top: 2px solid #e5e7eb;
}

.server-section label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: #333;
    font-size: 14px;
}

.server-input-group {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
    justify-content: center;
}

#serverInput {
    flex: 1;
    min-width: 200px;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 14px;
    transition: all 0.3s ease;
}

#serverInput:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.server-select {
    flex: 1;
    min-width: 200px;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 8px;
    font-size: 14px;
    background: white;
    cursor: pointer;
    transition: all 0.3s ease;
}

.server-select:focus {
    outline: none;
    border-color: #667eea;
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.btn-add, .btn-remove {
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-add {
    background: #10b981;
    color: white;
}

.btn-add:hover {
    background: #059669;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.4);
}

.btn-remove {
    background: #ef4444;
    color: white;
}

.btn-remove:hover {
    background: #dc2626;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.4);
}

/* 右上角 Toast 提示消息 */
.status-message-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    padding: 14px 20px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    min-width: 200px;
    max-width: 400px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
    z-index: 10000;
    opacity: 0;
    transform: translateX(400px);
    transition: all 0.3s ease;
    pointer-events: none;
}

.status-message-toast.show {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

.status-message-toast.success {
    background: #10b981;
    color: white;
}

.status-message-toast.error {
    background: #ef4444;
    color: white;
}

.status-message-toast.info {
    background: #667eea;
    color: white;
}

@media (max-width: 768px) {
    .container {
        padding: 20px;
    }

    .month-display {
        font-size: 1.2em;
        min-width: 150px;
    }

    .calendar {
        gap: 4px;
    }

    .day {
        padding: 4px;
    }

    .day-number {
        font-size: 14px;
    }

    .day-mark {
        font-size: 16px;
    }

    .legend {
        gap: 15px;
    }

    .legend-item {
        gap: 6px;
        font-size: 12px;
    }

    .mark {
        width: 20px;
        height: 20px;
        font-size: 14px;
    }

    .server-section {
        padding: 12px;
    }

    .server-section label {
        font-size: 12px;
    }

    .instructions {
        padding: 8px;
        font-size: 11px;
    }

    .user-info {
        padding: 8px 12px;
    }
}